QTL Mapping of Fiber- and Seed-Related Traits in Chromosome Segment Substitution Lines Derived from × .

A narrow genetic basis limits further the improvement of modern cultivar. The abundant genetic diversity of wild species provides available resources to solve this dilemma. In the present study, a chromosome segment substitution line (CSSL) population including 553 individuals was established using accession 5-7 as the donor parent and cultivar CCRI35 as the recipient parent.