tailieunhanh - EST-SSR based genetic divergence and prediction of heterotic combinations of hybrid parents in Pigeonpea

Cytoplasmic-genic male sterile based F1 hybrid is a revolutionary approach to break yield stagnation in pigeonpea. Hybrid vigor is positively correlated to genetic distance and allelic divergence of the parents. This study estimated genetic divergence of 8 ‘A’ lines, 2 ‘B’ lines and 19 ‘R’ lines of A2 and A4 cytoplasmic sources, and predicted best parental combinations using molecular markers. Among 390 EST-SSR markers screened, only 60 markers found polymorphic indicating very low degree of polymorphism (). Average allelic count was with a range of 2-4 per loci. Mean PIC was with a range of (ASSR236) and (ASSR9). Cluster and factorial analyses were performed based on marker dissimilarity matrix. The best parental combinations identified from the present study were, ICPA2047 X ICPR4013; ICPA2043 X ICPR4013 for A4 cytoplasm, and GT290A X GTR9, GT33A X GTR9, MS01A X GTR 9, MS10A X GTR9 for A2 cytoplasm in pigeonpea. | EST-SSR based genetic divergence and prediction of heterotic combinations of hybrid parents in Pigeonpea

TỪ KHÓA LIÊN QUAN
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.