Figure 2.

UniFrac PCoA of dust sample nucITS library clone frequencies. The first and second principal coordinates (P1 and P2) are shown. The first axis correlates with building (P1, red circles, 23% of variation). Apart from reference sample Re1a, the second axis correlates with building conditions (P2, blue circles, 16% of variation). The circles were drawn manually.

Pitk√§ranta et al. BMC Microbiology 2011 11:235   doi:10.1186/1471-2180-11-235
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