SRX1522272 FC1 SRP068232 PRJNA308064 Multiple samples are pooled together (e.g., 100 samples) in equal proportions based on their molecular weight and DNA concentrations. Pooled samples are purified using calibrated Ampure XP beads. Then the pooled and purified PCR product is used to prepare DNA library by following Illumina TruSeq DNA library preparation protocol SRS1240431 SAMN04386463 FC1 AMPLICON METAGENOMIC PCR Illumina MiSeq SRX1522273 FC2 SRP068232 PRJNA308064 Multiple samples are pooled together (e.g., 100 samples) in equal proportions based on their molecular weight and DNA concentrations. Pooled samples are purified using calibrated Ampure XP beads. Then the pooled and purified PCR product is used to prepare DNA library by following Illumina TruSeq DNA library preparation protocol SRS1240433 SAMN04386464 FC2 AMPLICON METAGENOMIC PCR Illumina MiSeq SRX1522274 LR1 SRP068232 PRJNA308064 Multiple samples are pooled together (e.g., 100 samples) in equal proportions based on their molecular weight and DNA concentrations. Pooled samples are purified using calibrated Ampure XP beads. Then the pooled and purified PCR product is used to prepare DNA library by following Illumina TruSeq DNA library preparation protocol SRS1240434 SAMN04386465 LR1 AMPLICON METAGENOMIC PCR Illumina MiSeq SRX1522275 LR2 SRP068232 PRJNA308064 Multiple samples are pooled together (e.g., 100 samples) in equal proportions based on their molecular weight and DNA concentrations. Pooled samples are purified using calibrated Ampure XP beads. Then the pooled and purified PCR product is used to prepare DNA library by following Illumina TruSeq DNA library preparation protocol SRS1240432 SAMN04386466 LR2 AMPLICON METAGENOMIC PCR Illumina MiSeq