Natural variation in LONELY GUY-Like 1 regulates rice grain weight under warmer night conditions.

ABSTRACT: Global nighttime temperatures are rising at twice the rate of daytime temperatures and pose a challenge for rice (Oryza sativa) production. High nighttime temperature (HNT) stress affects rice yield by reducing grain weight, size, and fertility. Although the genes associated with these yield parameters have been identified and characterized under normal temperatures, the genetic basis of grain weight regulation under HNT stress remains less explored. We examined the natural variation for rice single grain weight (SGW) under HNT stress imposed during grain development. A genome-wide association analysis identified several loci associated with grain weight under HNT stress. A locus, SGW1, specific to HNT conditions resolved to LONELY GUY-Like 1 (LOGL1), which encodes a putative cytokinin-act

SUBMITTER: Sandhu J 

PROVIDER: S-EPMC11376391 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature