Linkage of SSR markers with rice blast resistance and development of partial resistant advanced lines of rice (Oryza sativa) through marker-assisted selection.

ABSTRACT: Rice blast disease is one of the major bottlenecks of rice production in the world including Bangladesh. To develop blast resistant lines, a cross was made between a high yielding but blast susceptible variety MR263 and a blast resistant variety Pongsu seribu 2. Marker-assisted backcross breeding was followed to develop F₁, BC₁F₁, BC₂F₁, BC₂F₂, BC₂F_3, BC₂F₄ and BC₂F₅ population. DNA markers i.e., RM206, RM1359 and RM8225 closely linked to Pb1, pi21 and Piz blast resistant genes, respectively and marker RM276 linked to panicle blast resistant QTL (qPbj-6.1) were used in foreground selection. Calculated chi-square (χ^2<

SUBMITTER: Nihad SAI 

PROVIDER: S-EPMC8847655 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature