JA differentially regulates a SmWLIM1/MYB62-SUS1 module to control male fertility via starch biosynthesis

Clicks: 3
ID: 319465
2026
Free PDF
Article Quality & Performance Metrics
Overall Quality
Not rated
Combines reader engagement with the AI quality analysis. This article has not been analysed, so there is no overall score — reader engagement is measured and shown alongside.
AI Quality Assessment
Not analyzed
Readership in this journal
Emerging

Ranked #417 of 513 articles by views in Plant physiology and biochemistry : PPB

Most read Least read

Bar heights use a square-root scale. Only the 120 most-read articles are drawn; the journal has 513 in total.

Mint this article as an NFT
Not yet minted

Create a permanent, verifiable on-chain record of this article on the Scimatic Network. The NFT is held in your Journament account, and you can withdraw it to your own wallet at any time.

5 SUSD one-off · no wallet required
Sign in to mint
Abstract
Abstract Male sterility is a valuable trait for hybrid breeding, and starch metabolism plays a crucial role in regulating fertility. However, the molecular mechanisms underlying pollen fertility in the medicinal plant Salvia miltiorrhiza remain unclear. In this study, comparative transcriptome and starch content analyses of anthers from a naturally sterile Sichuan (SC) genotype and a fertile Shandong (SD) genotype identified the sucrose synthase gene SmSUS1 as a key regulator. This work provides the first functional evidence that SmSUS1 positively regulates pollen fertility by promoting starch biosynthesis. Using Weighted gene co-expression network analysis, two upstream transcription factors (TFs), SmWLIM1 and SmMYB62, were further uncovered. In vitro and in vivo assays demonstrated that both transcription factors directly activate SmSUS1 expression, forming a transcriptional module essential for fertility regulation. Jasmonic acid (JA) signaling differentially regulates this module, primarily by suppressing SmWLIM1 expression, which subsequently downregulates SmSUS1 and leads to reduced pollen viability. Although SmMYB62 expression responds to JA, its dynamics do not directly correlate with fertility. Notably, this entire JA-SmWLIM1-SmSUS1 regulatory axis operates specifically in the fertile SD genotype, revealing a genotype-dependent hormonal control of male fertility. Our study elucidates not only a core transcriptional module governing fertility but also a novel genotype-specific JA-starch metabolism pathway, providing crucial regulatory targets and genetic resources for hybrid breeding in medicinal plants.
Reference Key
openalex_W7167032349 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yukun Shang, Jinqiu Liao, Songjiang Dai, Zhizhou Zhang, X R Zhang, Yuanyuan Jiang, Xuexue Deng, Li Zhang, Ruiwu Yang
Journal Plant physiology and biochemistry : PPB
Year 2026
DOI
10.1093/plphys/kiag467
URL
https://doi.org/10.1093/plphys/kiag467
Keywords Keywords not found

Citations

No citations found. To add a citation, contact the admin at info@scimatic.org

Comments

No comments yet. Be the first to comment on this article.