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Phylogenetic tree showing relationships of 16S rRNA gene sequences (543 to 605 positions) uncovered in this work to the sequences from known type I and type II methanotrophs and to the sequences of uncultivated organisms. A distance algorithm (DNAdist) was employed, with 1,000 bootstrap analyses. Closed circles indicate bootstrap support of over 90%, and open circles indicate bootstrap support of over 55%. The Deinococcus sequence was used as an outgroup.
