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. Author manuscript; available in PMC: 2016 Jun 9.
Published in final edited form as: Nat Plants. 2015 Nov 2;1:15164. doi: 10.1038/nplants.2015.164

Figure 2.

Figure 2

Population structure analysis of low-variation regions in cultivated rice genomes. a, CLDGR threshold 3; b, CLDGR threshold 4; c, CLDGR threshold 5. Top panels, PCAs for all accessions; middle panels, PCAs without wild populations; bottom panels, unrooted NJ trees of concatenated CLDGRs. All shown eigenvectors discriminate the domesticated groups with statistical significance except: the first eigenvector fails to discriminate aromatic and japonica in all cases; the second eigenvector fails to discriminate aromatic and aus in all cases. Consequently, the aromatic accessions occupy the space between aus and japonica, indicating that aromatic could be an aus×japonica hybrid.