Extended Data Fig. 2: Genetic diversity of 403 accessions based on genotype data.

a, Population structure analysis when K = 2, 3 and 4. The x-axis represents the 403 accessions, with G1 (red), G2 (yellow), and G3 (blue) distinguished by different colors. b, Principal component analysis (PCA) conducted on all 403 accessions. c, The phylogenetic tree of the 403 accessions. The colored fiber cottons (brown) were marked.