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.
Pitkäranta et al. BMC Microbiology 2011 11:235 doi:10.1186/1471-2180-11-235