Figure 3.

Principal component analysis of allopatric I. graellsii, and allopatric and sympatric I. elegans populations. The first (PCA 1) and second (PCA 2) axes represent the first two factorial components and sum up to 41% of explained variation.

Sánchez-Guillén et al. BMC Evolutionary Biology 2011 11:210   doi:10.1186/1471-2148-11-210
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