title: bamA sequence after first BTEX addition
design: For 16 S rRNAand bamA gene amplification and sequencing, purified amplicons were pooled in the equimolar and paired-end sequenced on an Illumina MiSeq PE300 platform (Illumina, San Diego, USA) according to the standard protocols by Majorbio Bio-Pharm Technology Co. Ltd. (Shanghai, China)