Figure 1
Map location of the QTLs for heading date in the RIL populations developed from the crosses, Bengal x PSRR-1 (BR) and Cypress x PSRR-1 (CR)34 and IL population of ‘PSRR-1’ developed in ‘Bengal’ background35. Linkage groups in both RIL populations were aligned using common markers. The arrows were placed in 1-LOD interval and arrows pointing to the top and bottom indicate increasing and decreasing effect on phenotypic values of the ‘Bengal’ or ‘Cypress’ allele, respectively. The solid bars to the left of chromosomes of BR linkage map indicate the introgressed PSRR-1 chromosome segments in ILs. The solid bars were red or black when the PSRR-1 alleles increased or decreased trait means in ILs compared to the recurrent parent, respectively. The presence of QTL was inferred when there was a significant difference between the mean of an IL and the recurrent parent at P < 0.01 using the Dunnett’s test. Heading date genes overlapping the QTLs identified in this study were indicated by numbers 1-7 (1 = DTH2, 2 = Ehd4, 3 = Hd1, 4 = Ghd7, 5 = DTH7, 6 = Ehd3, 7 = DTH8).
