The abstract is read at the publisher; the summary is JClub's.
miR159a suppresses BrMYB12 in flowering Chinese cabbage seedlings at the five-leaf stage under 42 °C heat, reducing myo-inositol/raffinose accumulation and thermotolerance.
- Why it matters: Heat stress threatens crop performance, yet how miRNAs mechanistically tune thermotolerance via the raffinose family oligosaccharide pathway is unclear.
- What they did: Integrated transcriptomic and metabolomic profiling identified miR159a-linked downregulation of BrMIPS1, BrGolS1.1, and BrRS2, and showed miR159a cleaves BrMYB12 between nucleotides 6 and 7 of the complementary sequence.
- The result: miR159a overexpression or BrMYB12 knockout compromised thermotolerance with higher reactive oxygen species, membrane damage, and lower myo-inositol and raffinose, while miR159a knockdown or BrMYB12 overexpression showed opposite effects.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.