Shotgun metagenomics raw reads of O_C
Shotgun metagenomic libraries from [sample/matrix] were prepared with [library kit] (insert ~[350450] bp, unique dual indexes), QCd and pooled, then sequenced on an Illumina MiSeq (paired-end [2250 or 2300] bp, [v2/v3] chemistry, ~1% PhiX), yielding demultiplexed FASTQ files.