Additional file 9.

Figure S4 Principal Co-ordinate analysis (PCoA) of the panel based on the first two components derived using 918 SNPs. The primary axis tend to separate into subgroups based on their spike morphology character (blue: six-rowed barley; red: two-rowed barley). Further clustering is based on origin of the accessions.

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Pasam et al. BMC Plant Biology 2012 12:16   doi:10.1186/1471-2229-12-16