The abstract is read at the publisher; the summary is JClub's.
Two promoter SNPs (SNP1 and SNP2) in BraHDAC1 define thermotolerant haplotypes in Brassica rapa that enable heat-induced transcription via an ABRE-CE module.
- Why it matters: Heat stress limits B. rapa productivity, and the genetic basis of thermotolerance is needed to breed climate-resilient cultivars.
- What they did: The study combined GWAS with bulked segregant analysis to map SNP1/SNP2, then linked the haplotype-specific ABRE-CE module to BraAREB1 binding and heat-induced BraHDAC1 transcription.
- The result: BraHDAC1 activity represses BraPME1 via histone H3K9/K14 deacetylation, and this is associated with altered PME activity, pectin methylesterification, and temporal stomatal opening/closure that supports thermotolerance.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.