Figure 4.

PCoA scatterplot of ITS clones. Scatterplot inferred from pairwise distances between cloned ITS sequences using the K2P substitution model: P. marginata hexaploids = green squares; P. marginata dodecaploids = red squares; P. allionii = blue triangles; P. latifolia = yellow circles. Ellipses indicate clades I-IV of Figure 3.

Casazza et al. BMC Evolutionary Biology 2012 12:56   doi:10.1186/1471-2148-12-56
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