Plant Physiol BiochemJClub
Genome-wide identification and functional analysis of SR proteins in wheat reveal their roles in heat stress tolerance.
Plant Physiology and Biochemistry · · Journal Article · Open access
Xu, Gao + more
Abstract ↗AI summary
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Heat stress alters the splicing patterns of TaSR30 and TaSR45 in wheat, and overexpressing either gene in Arabidopsis enhances seedling thermotolerance.
- Why it matters: SR proteins link pre-mRNA splicing with plant stress responses, but wheat SR genes and their heat-linked splicing and functional roles were not comprehensively defined.
- What they did: A genome-wide survey identified 60 TaSR genes in wheat and classified them into seven phylogenetic subfamilies; Y2H, LCI, and BiFC showed 12 of 14 representative TaSR proteins interact with TaU1-70K.
- The result: Expression profiling showed tissue-preferential induction of multiple TaSRs under abiotic and hormone treatments, and heat specifically changed TaSR30 and TaSR45 splicing, enabling candidate genes for improving heat resilience.
The findingWhy it mattersWhat they didThe result
- Open access