Figure 6.

Taxonomic distribution of marker genes for methane oxidation. Shown is the number of reads matching marker genes associated with oxidation of methane and the taxonomic distribution of these reads in each metagenome. Reads matching the marker genes for anaerobic oxidation of methane (mcrA), aerobic oxidation of methane (pmoA) and sulphate reduction (dsrAB) are presented in the left, middle and right section respectively. The 0-4 cm metagenome is presented in red and the 10-15 cm metagenome in blue.

HĂ„velsrud et al. BMC Microbiology 2011 11:221   doi:10.1186/1471-2180-11-221
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