Figure 6.

QTL likelihood maps for seed storability measured as viability after the CDT (solid line) and 4 years of natural aging (dashed line). The abscissas correspond to the genetic maps in cM (the linkage group number being indicated in the right upper corner of each panel). Horizontal dotted lines correspond to the LOD score threshold of 2.8 used to declare the presence of a QTL. Two-LOD support intervals for the significant QTLs are shown as black bars along abscissas. The additive QTL effects are expressed as probit units of the germination percentage after the CDT. These are estimated as the mean differences between the two RIL genotypic groups carrying the Ler and Cvi alleles (a positive value implies Ler increases the corresponding phenotypic value). The percentage of variance explained by each QTL is reported close to the corresponding LOD score peak.