Tolerance mechanisms in maize identified through phenotyping and transcriptome analysis in response to water deficit stress.

ABSTRACT: Water deficit is a key limiting factor for maize (Zea mays L.) productivity. Elucidating the molecular regulatory networks of stress tolerance is crucial for genetic enhancement of drought tolerance. Two genotypes of maize contrasting in their yield response to water deficit were evaluated for tolerance traits of water relations, net CO₂ assimilation rate, antioxidative metabolism and grain yield in relation to the expression levels, based on transcription profiling of genes involved in stress signaling, protein processing and energy metabolism to identify functional tolerance mechanisms. In the genotype SNJ201126 upregulation of calcium mediated signaling, plasma membrane and tonoplast intrinsic proteins and the membrane associated transporters contributed to better main

SUBMITTER: Maheswari M 

PROVIDER: S-EPMC8212253 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature