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. 2014 Sep 30;5:515. doi: 10.3389/fmicb.2014.00515

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Copyright © 2014 Magalhães, Machado, Frank-Fahle, Lee and Cary.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Phylogenetic relationship among Bacterial amoA sequences retrieved from Antarctica Dry Valleys and other geographic locations. The neighbor-joining tree was based on 443 nucleotide sequences and was constructed based on Kimura distances and the neighbor-joining method. Distance bootstrap values ≥50% are indicated at branch points (1000 iterations). The major clusters indicated were also supported using maximum parsimony analysis. The 210 Bacterial amoA clones obtained from this study are distributed under DVAOB1, DVAOB2, and DVAOB3. Gray scale pie plot indicate the percentage of occurrence of each OTU in the total sequences, and colorful pie plots indicate the percentage of occurrence of each OTU within the four Dry Valleys.