Figure 2. Mapping quantitative trait loci (QTLs) for PA- (plant architecture) and yield- related traits onto the Brassica napus genome.

The colored blocks in the outermost circle represent the conserved Arabidopsis blocks aligned with the B. napus genome identified through single-nucleotide polymorphism/simple sequence repeat (SNP/SSR) markers in the B. napus genetic linkage groups, which are represented by the second outer circle. The third circle represents the B. napus genome reconstructed with fragments of homoeologous exchanges defined by Chalhoub et al.²⁷. The fourth to seventh circles represent QTLs identified in WH09, WH10, HG10, and GS11 environments, respectively. The black blocks represent the confidence intervals of the identified QTLs. The inner (eighth) circle represents unique QTLs. The green, blue, and red blocks represent confidence intervals of unique QTLs of PA, PY, or both.