The abstract is read at the publisher; the summary is JClub's.
CaLWD1, a WD40 protein highly expressed in early anther development of pepper (Capsicum annuum), is required for proper outer pollen exine formation and male fertility.
- Why it matters: Core pollen-wall regulators are known, but how WD40 proteins that scaffold interactions contribute to exine formation is unclear.
- What they did: CaLWD1 was identified and its expression mapped to the tapetum and microspores; CaLWD1 silencing was tested, followed by transcriptomic/metabolomic profiling and interaction assays with CaAMS and CaMS188.
- The result: Silencing CaLWD1 disrupted outer exine structure and caused male sterility, while reducing fatty-acid metabolism and sporopollenin biosynthesis gene expression and fatty-acid metabolite accumulation; CaLWD1 formed an MBW complex that boosted CaAMS/CaMS188 activation of CaFAR2 and CaCYP703A2 and supported a CaMS188-linked feed-forward module.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.