棉花陆海杂交BC1F1群体SSR分子遗传图谱构建

In this study, two genetic maps were constructed using two BC1F1 populations between Gossypium hirsutum and Nongda 601, Nongda 8 and Gossypium barbadense Pima 90-53. Pima 90-53 was used as the donor, Nongda 601and Nongda 8 were used as recurrent parents. Two upland cottons possessed high yield, but general fiber quality relative to Sea Island cotton Pima90-53 which had fine fiber quality and good disease resistance but low yield. The linkage map between Nongda 601 and Pima90-53 included 225 SSR markers which distributed in 41 linkage groups and covered 4083.7 cM. The linkage map between Nongda 8 and Pima 90-53 included 242 SSR markers which distributed in 41 linkage groups and covered 3582.5 cM. These results lay foundation for QTL mapping of fiber yield and quality traits, interactions among QTL, and between QTL and environment.