Marker-assisted introgression of three dominant blast resistance genes into an aromatic rice cultivar Mushk Budji.

ABSTRACT: Modern high yielding rice varieties have replaced most of the traditional cultivars in recent past. Mushk Budji, is one such short grained landrace known for its aroma and exquisite quality, however, is highly susceptible to blast disease that has led to considerable decline in its area. Mushk Budji was crossed to a triple-gene donor line, DHMAS 70Q 164-1b and followed through marker-assisted foreground and background selection in first and second backcross generations that helped to incorporate blast resistance genes Pi54, Pi1 and Pita. Marker-assisted background selection was carried out using 78 SSR and STS markers that helped to reduce linkage drag around the genes Pi54, Pi1 and Pita to 2.74, 4.60 and 2.03 Mb, respectively. The three-gene lines in BC₂F_2:3 were gen

SUBMITTER: Khan GH 

PROVIDER: S-EPMC5840290 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature