Fig. 1

Population structure analysis of the NPGS Sudan core collection. a Estimation of number of populations in NPGS Sudan core collection based on the STRUCTURE analysis using 5366 unlinked genome-wide SNP and the Δk values ranging from 1 to 12. The maximum value of Δk suggests the presence of five populations. b Hierarchical organization of genetic relatedness of 318 accessions from the NPGS Sudan core set for a K value of five. Each accession is represented by a vertical line partitioned into five colored segments that represent the estimated membership probabilities of the individual to each cluster c Distribution of pairwise identity by state (IBS) genetic distance amongst 318 accessions from NPGS Sudan core collection based on the analysis of 5366 unlinked SNPs. Red dashed line represents the distribution of pairwise IBS genetic distance amongst 374 accessions from NPGS Ethiopian collection based on the analysis of 27,306 unlinked SNPs