Phylogenetic affiliations and numbers of bacterial 16S rRNA sequences retrieved from clone libraries generated from different fractions.

Numbers in the parentheses of line “In silico T-RF (bp)” indicate clone numbers representing the corresponding T-RF.
&Clone sequences retrieved from “light” and “heavy” library was divided into OTU level in each row of the table. The OTUs containing one or no clone in both libraries were not shown in this table.
“12C-hexadecane (D126-1.565)” indicates that the clone library was constructed from the DNA fraction with a BD of 1.565 g. mL−1 of the unlabeled microcosm on day 126.
“13C-hexadecane (D218-1.582)” indicates that the clone library was constructed from the DNA fraction with a BD of 1.582 g. ml-1 of the 13C-labeled microcosm on day 218.
aTree clones (account for T-RFs 285, 287 and 288 bp) retrieved from 12C-hexadecane (D126-1.565) representing for T-RFs 285, 287 and 288 bp are not shown in the table.
bOne clone (account for T-RF 76 bp) retrieved from 13C-hexadecane (D218-1.582) accounting for T-RFs 76 is not shown in the tablec: The coverage was calculated based on Good formula [45], the 16S rRNA gene sequences were clustered into OTUs with 97% sequence identity.