The abstract is read at the publisher; the summary is JClub's.
GhNAC029 in cotton (Gossypium hirsutism) negatively regulates drought tolerance by suppressing GhNCED1-mediated abscisic acid (ABA) synthesis, weakening drought performance.
- Why it matters: Cotton drought tolerance mechanisms are less understood than those in model plants, and negative regulators like NAC factors remain underexplored.
- What they did: Transcriptome profiling of drought-sensitive XLZ8 (S) versus drought-tolerant G95079 (G) across drought time points identified GhNAC029; VIGS and transgenic lines tested its function, while transcriptional profiling and CUT&Tag mapped downstream regulation of GhNCED1.
- The result: GhNCED1 was down-regulated by GhNAC029, and exogenous ABA spraying showed GhNAC029 increases ABA sensitivity while reducing ABA biosynthesis, implying reduced ABA production contributes to weaker drought tolerance in cotton.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.