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        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355439</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443990</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.C4.mar09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>GTCAGCCGTTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.CS.dec08" accession="ERX1708757" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708757</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.CS.dec08</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.CS.dec08</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.CS.dec08</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355440">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355440</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443991</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.CS.dec08</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>CGTCACTCCAAG</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.H10.4.jul09" accession="ERX1708758" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708758</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.H10.4.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.H10.4.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.H10.4.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355441">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355441</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443992</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.H10.4.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>AGGGAAAGGATC</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.H10.mar09" accession="ERX1708759" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708759</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.H10.mar09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.H10.mar09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.H10.mar09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355442">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355442</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443993</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.H10.mar09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>GCTCCACAACGT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.H4.jul09" accession="ERX1708760" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708760</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.H4.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.H4.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.H4.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355443">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355443</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443994</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.H4.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>AAGGAGTGCGCA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.H4.mar09" accession="ERX1708761" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708761</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.H4.mar09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.H4.mar09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.H4.mar09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355444">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355444</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443995</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.H4.mar09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>ATCAGCCAGCTC</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.U10.jul09" accession="ERX1708762" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708762</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.U10.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.U10.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.U10.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355445">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355445</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443996</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.U10.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>GGACTCAACTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.U70.jul09" accession="ERX1708763" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708763</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.U70.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.U70.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.U70.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355446">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355446</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443997</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.U70.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>ATACGGGTTCGT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.U80.jul09" accession="ERX1708764" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708764</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.U80.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.U80.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.U80.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355447">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355447</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443998</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.U80.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>CCTTTCACCTGT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.X10.jul09" accession="ERX1708765" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708765</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.X10.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.X10.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.X10.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355448">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355448</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4443999</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.X10.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>TTCTGGTCTTGT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.X10.mar09" accession="ERX1708766" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708766</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.X10.mar09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.X10.mar09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.X10.mar09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355449">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355449</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4444000</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.X10.mar09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>GTTACAGTTGGC</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.X52.jul09" accession="ERX1708767" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708767</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.X52.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.X52.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.X52.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355450">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355450</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4444001</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.X52.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>GTCCACTTGGAC</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.X60.dec08" accession="ERX1708768" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708768</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.X60.dec08</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.X60.dec08</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.X60.dec08</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355451">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355451</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4444002</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.X60.dec08</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>CGGACTCGTTAC</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.X70.jul09" accession="ERX1708769" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708769</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.X70.jul09</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.X70.jul09</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.X70.jul09</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355452">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355452</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4444003</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.X70.jul09</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>GATTTAGAGGCT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.X83.dec08" accession="ERX1708770" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708770</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.X83.dec08</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.X83.dec08</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.X83.dec08</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355453">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355453</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4444004</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.X83.dec08</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>TCTCGCACTGGA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
  <EXPERIMENT alias="qiita_ptid_91:861.XS.dec08" accession="ERX1708771" broker_name="">
    <IDENTIFIERS>
      <PRIMARY_ID>ERX1708771</PRIMARY_ID>
      <SUBMITTER_ID namespace="UCSDMI">qiita_ptid_91:861.XS.dec08</SUBMITTER_ID>
      <SUBMITTER_ID namespace="University of California San Diego Microbiome Initiative">qiita_ptid_91:861.XS.dec08</SUBMITTER_ID>
    </IDENTIFIERS>
    <TITLE>Illumina HiSeq 2000 sequencing; qiita_ptid_91:861.XS.dec08</TITLE>
    <STUDY_REF accession="ERP017176">
      <IDENTIFIERS>
        <PRIMARY_ID>ERP017176</PRIMARY_ID>
      </IDENTIFIERS>
    </STUDY_REF>
    <DESIGN>
      <DESIGN_DESCRIPTION>Comparison of groundwater samples from karst sinkholes (cenotes) from the Yucatan Peninsula, Mexico</DESIGN_DESCRIPTION>
      <SAMPLE_DESCRIPTOR accession="ERS1355454">
        <IDENTIFIERS>
          <PRIMARY_ID>ERS1355454</PRIMARY_ID>
          <EXTERNAL_ID namespace="BioSample">SAMEA4444005</EXTERNAL_ID>
        </IDENTIFIERS>
      </SAMPLE_DESCRIPTOR>
      <LIBRARY_DESCRIPTOR>
        <LIBRARY_NAME>861.XS.dec08</LIBRARY_NAME>
        <LIBRARY_STRATEGY>OTHER</LIBRARY_STRATEGY>
        <LIBRARY_SOURCE>METAGENOMIC</LIBRARY_SOURCE>
        <LIBRARY_SELECTION>PCR</LIBRARY_SELECTION>
        <LIBRARY_LAYOUT>
          <SINGLE/>
        </LIBRARY_LAYOUT>
        <LIBRARY_CONSTRUCTION_PROTOCOL>EMP V4 515f,806rbc protocol</LIBRARY_CONSTRUCTION_PROTOCOL>
      </LIBRARY_DESCRIPTOR>
    </DESIGN>
    <PLATFORM>
      <ILLUMINA>
        <INSTRUMENT_MODEL>Illumina HiSeq 2000</INSTRUMENT_MODEL>
      </ILLUMINA>
    </PLATFORM>
    <EXPERIMENT_ATTRIBUTES>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>barcode</TAG>
        <VALUE>ACGACGCATTTG</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_name</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>center_project_name</TAG>
        <VALUE>Moore_Yucatan_cenotes</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>emp_status</TAG>
        <VALUE>EMP</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>illumina_technology</TAG>
        <VALUE>HiSeq</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>linker</TAG>
        <VALUE>GT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>pcr_primers</TAG>
        <VALUE>FWD:GTGCCAGCMGCCGCGGTAA; REV:GGACTACHVGGGTWTCTAAT</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>primer</TAG>
        <VALUE>GTGTGCCAGCMGCCGCGGTAA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_date</TAG>
        <VALUE>8/14/12</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>run_prefix</TAG>
        <VALUE>lane1_NoIndex_L001_sequences</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>samp_size</TAG>
        <VALUE>.1,g</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sample_center</TAG>
        <VALUE>ANL</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>sequencing_meth</TAG>
        <VALUE>Sequencing by synthesis</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>study_center</TAG>
        <VALUE>CCME</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_gene</TAG>
        <VALUE>16S rRNA</VALUE>
      </EXPERIMENT_ATTRIBUTE>
      <EXPERIMENT_ATTRIBUTE>
        <TAG>target_subfragment</TAG>
        <VALUE>V4</VALUE>
      </EXPERIMENT_ATTRIBUTE>
    </EXPERIMENT_ATTRIBUTES>
  </EXPERIMENT>
</EXPERIMENT_SET>
