Figure 6.

Principal coordinate analysis (PCO) between sockeye salmon populations from Iliamna Lake. Based on (a) 38 SNPs ('No Outliers'), (b) 39 SNPs including One_MHC2-190 ('Outlier 1'), or (c) 39 SNPs including One_MHC2-251 ('Outlier 2'). Population numbers can be found in Table 1. Population legends--tributary spawners: empty squares; island-beach spawners: black circles; mainland-beach spawners: grey triangles; Iliamna River (#23, a late-spawning population, Table 1): black square.

Gomez-Uchida et al. BMC Evolutionary Biology 2011 11:48   doi:10.1186/1471-2148-11-48
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