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. 2015 Apr 19;15:107. doi: 10.1186/s12870-015-0477-6

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© Zhang et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Population structure of 502 worldwide sorghum accessions. 476 belong to the five main cultivated races and 26 are wild types. (a) PCA plots of the first three components for 265,487 SNPs. The five main cultivated races and the wild type are color-coded. (b) Neighbor-joining tree of 502 sorghum accessions. (c) Population differentiations and frequencies of common two-locus haplotypes for 100 SNPs adjacent to the Sh1 gene [2] for pairs of populations. All the connections for guinea and durra are shown. The F_ST values paired with frequencies of common two-locus haplotypes are indicated.