Figure 1
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 FST values paired with frequencies of common two-locus haplotypes are indicated.