Sample_55_V12
Total microbial genomic DNA was extracted from host buccal mucosa. PCR amplification of the hypervariable region of the 16S/18S ribosomal RNA (rRNA) genes was performed using the universal bacterial primer pairs. Pairedend metagenomic sequencing was performed on the amplicon libraries using an Illumina MiSeq or HiSeq 2500 systems.