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. 2014 Jul 4;5:333. doi: 10.3389/fmicb.2014.00333

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Copyright © 2014 Carrell and Frank.

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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PCoA and UniFrac analysis of the bacterial communities associated with conifer needles. (A–C) PCoA of the unweighted UniFrac distance matrix. Points that are closer together on the ordination have communities that are more similar. Each point corresponds to a sample, and shapes correspond to (A) host species, (B) elevation, and (C) location. (D) Hierarchical clustering of composite communities of the conifer species. Leaves are labeled by color according to host species: red, P. flexilis; blue, P. engelmannii.