SRX13826747 SBR1_BC19 SRP355719 PRJNA798056 For the nested PCR, the 16S rRNA gene was first amplified using primers 27F and 1495R. Second PCR was carried out using Forward primer that contains an A adapter for massive sequencing, an Ion Xpress barcode and Reverse primer containing Truncated P1 (TrP1) adapters. SRS11705905 SAMN25045560 SBR1_BC19 AMPLICON METAGENOMIC PCR Ion Torrent PGM SRX13826748 SBR2_BC8 SRP355719 PRJNA798056 For the nested PCR, the 16S rRNA gene was first amplified using primers 27F and 1495R. Second PCR was carried out using Forward primer that contains an A adapter for massive sequencing, an Ion Xpress barcode and Reverse primer containing Truncated P1 (TrP1) adapters. SRS11705906 SAMN25045941 SBR2_BC8 AMPLICON METAGENOMIC PCR Ion Torrent PGM SRX13826749 STR1_BC20 SRP355719 PRJNA798056 For the nested PCR, the 16S rRNA gene was first amplified using primers 27F and 1495R. Second PCR was carried out using Forward primer that contains an A adapter for massive sequencing, an Ion Xpress barcode and Reverse primer containing Truncated P1 (TrP1) adapters. SRS11705907 SAMN25045951 STR1_BC20 AMPLICON METAGENOMIC PCR Ion Torrent PGM SRX13826750 STR2_BC9 SRP355719 PRJNA798056 For the nested PCR, the 16S rRNA gene was first amplified using primers 27F and 1495R. Second PCR was carried out using Forward primer that contains an A adapter for massive sequencing, an Ion Xpress barcode and Reverse primer containing Truncated P1 (TrP1) adapters. SRS11705908 SAMN25045953 STR2_BC9 AMPLICON METAGENOMIC PCR Ion Torrent PGM