a, Expression patterns of PMA2G02653.1. Significant differences were performed by DESeq2 to determine fold change (FC) of gene expressions between control and heat-treatment groups (two-tailed Wald test). The FC was determined by * (0 < |log2FC|< 1, FDR-adjusted P < 0.05) or ** (|log2FC|>= 1, FDR-adjusted P < 0.05). The blue and red */** represent gene down- and upregulation, respectively. b, Comparison of the latitudinal distributions of the two SV-related haplotypes of pearl millet accessions. Center line, median; box limits, upper and lower quartiles; whiskers, 1.5x interquartile range; and dots represent outliers. Significant differences were tested by two-tailed t-test and shown by p value. c, SV-based selection sweep analyses. A total of 3,952 SVs with population frequency differences (fdSVs) were identified in both comparisons and harbored 1,285 genes. The black dotted line represents a cut-off window in which the top 1% of data points were selected as the sweep region. The right panel represents the functional enrichment analyses of the 1,285 genes. d, Expression levels of one candidate gene (PMA5G03691.1)-related haplotype. Significant differences were performed by DESeq2 to determine fold change (FC) of gene expressions between control and heat-treatment groups (two-tailed Wald test). The FC was determined by * (0 < |log2FC|< 1, FDR-adjusted P < 0.05) or ** (|log2FC|>= 1, FDR-adjusted P < 0.05). The blue and red ** represent gene down- and upregulation, respectively. e, PAV-GWAS of SVs associated with grain number/panicle (GNP). Control: condition without stress. Early: early drought stress inhibiting irrigation from one week before flowering until maturity. Late: late drought stress conducted during early grain-filling by inhibiting irrigation from 50% flowering time until maturity. The regions marked by grey box indicate the GNP-related QTL could be captured by different conditions. f, PAV-GWAS of SVs associated with the grain number/m2 (GNM2) trait. g, Comparison of GNM2 between accessions with SVs and without SVs. Center line, median; box limits, upper and lower quartiles; whiskers, 1.5x interquartile range; and dots represent outliers. Significant differences were tested by two-tailed t-test and shown by p value. h, PAV-GWAS of SVs associated with the tiller number/plant (Till) trait. PmiG: Tift 23D2B1-P1-P5. The dotted-line represents the significance threshold of -log10 (p value) > 5.