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. 2017 Feb 28;11(6):1386–1399. doi: 10.1038/ismej.2017.6

Figure 3.

Figure 3

Methanogen community at five points across the seabed sediment. (a) Maximum likelihood tree of representative partial mcrA sequences (about 362 bp). Collapsed branches are indicated by a polygon. The mcrA gene of Methanopyrus kandleri (MKU57340) was used as the outgroup. Asterisks indicate local support values over 75%. The number in parenthesis following the ETNP_MG sequences indicates the % relative abundance of each OTU over the total number of OTUs (see Supplementary Table S2 for details). The bar represents 0.1 average nucleotide substitutions per base. (b) Principal coordinate analysis (PCoA) plot of the methanogen community based on the mcrA sequences and a maximum likelihood tree, and, constructed with the weighted Unifrac metric.