Fig. 2.

Genome-wide distribution of quantitative trait loci (QTLs) detected for four seed dormancy parameters in the two populations. a CSSLs (chromosome segment substitution lines). b BILs (backcross inbred lines). Rice chromosomes with bins are indicated in the outer circle. The outer to the inner circles represent G_3d (I), AUC (II), T₅₀ (III) and G_7d (IV), respectively. G_3d, germination rate at 72 h after imbibition; G_7d, maximum germination rate at 168 h after imbibition; T₅₀, germination speed, which is the time to reach 50% germination of seeds; and AUC, the area under the curve up to 168 h after imbibition. Red arrows represent the major loci associated with seed dormancy in both populations. For each bar diagram, the x-axis represents the physical location along each numbered chromosome. The y-axis represents the P value for the single-nucleotide polymorphism (SNP) association. Dashed lines indicate the declaration thresholds