Extended Data Fig. 7: Genetic diversity of wild and cultivated oats.
a, Principal component analysis (PCA) for 117 oat accessions. b, Nucleotide diversity (π) and population divergence (FST) of G1, G2 and G3 groups. The value in each circle represents an estimation of nucleotide diversity for each group, and values on each line indicate pairwise population divergence. c, The linkage disequilibrium (LD) decay analysis for G1, G2 and G3 groups. d-e, GO and KEGG enrichment analysis of genes in selective sweeps region between wild and cultivated group. f, Signals of artificial selection in the OsCLP1 gene related to shattering. Scale bar, 10 cm. Black dashed line is the threshold of the top 5% π ratio and Fst between wild and cultivated oat. g, Gene structure, haplotype, selective signature and expression of OsCLP1 gene between wild and cultivated oat. qRT-PCR was repeated independently at least three times with similar results. Significance levels are computed from two-sided Wilcoxon tests. h, Signals of artificial selection in the An1 gene related to awn length. Scale bar, 1 cm. Black dashed line is the threshold of the top 5% π ratio and Fst between wild and cultivated oat. i, Gene structure, haplotype, selective signature and expression for An1 gene between wild and cultivated oat. qRT-PCR was repeated independently at least three times with similar results. Significance levels are computed from two-sided Wilcoxon tests.
