title: Soil DNA-SIP_fraction: labeled with  13C-Cel at timepoint 14 BD 1.70345448
design: DNA-SIP fractions samples fractionated from CsCl gradient while  unfractionated were just DNA extracts, PCR with V4 16S rRNA primers, gel  cleanup, then up to 192 samples sequenced together with dual barcodes in  Illumina MiSeq 2x250 V2 chemistry.