Identification of simple sequence repeat markers linked to heat tolerance in rice using bulked segregant analysis in F₂ population of NERICA-L 44 × Uma.

ABSTRACT: The damage caused by high temperature is one of the most important abiotic stress affecting rice production. Reproductive stage of rice is highly susceptible to high temperature. The present investigation was undertaken to identify polymorphic microsatellite markers (SSR) associated with heat tolerance. The rice cultivars NERICA- L 44 (heat tolerant) and Uma (heat susceptible) were crossed to generate F¹ and F² populations. The F² population was subjected to heat stress at >38°C and the 144 F² plants were evaluated for their tolerance. The results note that the mean of the F² population was influenced by the tolerant parent with regards to the traits of plant height, membrane stability index, photosynthetic rate, stomatal conductance,

SUBMITTER: Stephen K 

PROVIDER: S-EPMC10084929 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature