16S rRNA gene amplification from Mercer Subglacial Lake bed sediments: Sample multicore 4C, collection depth 20-22 cm, composite depth 30-32 cm
16S rRNA gene was PCR amplified with the primers described in Caporaso et. al. 2012 ISME Journal (doi:10.1038/ismej.2012.8) and sequenced as 300 pb paired end reads on an Illumina MiSeq v3