Illumina HiSeq 2500 paired end sequencing
DNA from the enrichment culture was extracted from 150 mL of culture using the Power Soilï¿½ DNA extraction kit and submitted for whole metagenomics  sequencing (illumina pair-end sequencing) in February of 2018. DNA was sequenced at the Beijing Genomics Institute, China; an in-house preparation protocol was used to construct a 350 bp insert library. DNA was sequenced using the HiSeq 2500 sequencing platform (150 bp read length). Data was received on July of 2018.