Figure 1.
Leaf traits of heading Chinese cabbage and non-heading Chinese cabbage and their recombination lines.
Figure 2.
Frequency distributions of 6 head traits in the RIL lines and their parental lines.
The vertical axis of each figure represents the number of RIL lines. Arrows show the mean values for the parental lines Bre and Wut.
Table 1.
Data of head traits in the parents and the RIL population.
Table 2.
The correlation coefficients between different traits and years.
Figure 3.
Recombination map and linkage map.
(A) Recobination map of 150 RILs; (B) Pairwise recombination fractions and LOD scores; (C) Genetic linkage map after filtering markers that recombination rates higher than 20%.
Figure 4.
Linkage relationship between the QTLs for head traits.
The names of QTLs are described in Table 3. The black and grey arrow heads indicate the locations of QTLs in 2011 and 2012, respectively. The locations of the QTLs for qTr and qLW in the two years are the same and indicated by white arrow heads.
Table 3.
QTLs of 6 heading traits in two years.
Figure 5.
Precise locations of three QTLs and candidate genes.
Curves indicate chromosomal locations and LOD values of detected QTLs. Names and phenotypic effect (R2) of the QTLs are indicated. Recombination bins near the LOD peaks of the QTL are illustrated as horizontal bars with their numbers labeled inside. Shaded bin overlaps the LOD peak of a QTL. The portion of a curve and corresponding bins defining the 95% confidence interval of a QTL are bracketed by two lines. The relative physical position of a candidate gene in the bin is indicated by an arrow head.