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. 2021 Jul 9;16(1):78–90. doi: 10.1038/s41396-021-01049-y

Fig. 5. Maximum-likelihood tree of representative archaeal 16S rRNA gene sequences directly amplified from the heavy (CH) and light (CL) fractions from 13CH4 incubations and original sediment DNA (CO).

Fig. 5

The scale bar represents 0.1 substitutions per nucleotide position. Bootstrap values >70 are shown. The first number (before the “/”) in parentheses is the number of clones in the same operational taxonomic unit (OTU) assigned by CAP3 sequence assembly program with 97% similarity; the number after the “/” in parentheses is the total clones in CH, CL, and CO libraries, respectively.