Cysteine-rich receptor-like kinase and MADS-box co-regulation of programmed cell death drives apical spikelet degeneration in wheat
Clicks: 5
ID: 324814
2026
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.
Reader Engagement
Emerging Content
1.2
/100
5 views
1 readers
AI Quality Assessment
Not analyzed
Readership in this journal
EmergingRanked #156 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 mintedCreate 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
Abstract
Spikelet degeneration and pollen sterility are primary constraints on grain set in wheat (Triticum aestivum L.), yet their molecular underpinnings remain poorly defined. We characterized degenerated spikelets 1 (ds1), a wheat mutant displaying apical spikelet degeneration and middle spikelet sterility. Relative to wild type (WT), ds1 exhibited a 17.0% reduction in spike length, an 88.8% decline in grain-bearing spikelets, and a 93.6% drop in grain number per spike. Fine mapping localized the causal locus to chromosome 3BL, where DS1, encoding a cysteine-rich receptor-like kinase (CRK), was identified as the causal gene and found to be strongly down-regulated in degenerated spikelets. Concordantly, multiple MADS-box transcription factors were transcriptionally suppressed in ds1 degenerated spikelets. Histological analysis revealed anther shrinkage, disrupted boundaries between anther wall layers, and defective cuticle structure. Excessive reactive oxygen species (ROS) accumulated in the anther outer wall, triggering programmed cell death (PCD). Loss of cuticular wax on the anther surface, combined with premature tapetal degradation, produced hollow anther locules, aberrant pollen exine layering, and failure of microspore maturation, culminating in sterility. Together, these findings demonstrate that coordinated regulation of PCD, tapetal development, and pollen exine formation is indispensable for normal spikelet and floret development in wheat.
| Reference Key |
openalex_W7202281097
Use this key to autocite in the manuscript while using
SciMatic Manuscript Manager or Thesis Manager
|
|---|---|
| Authors | Qidi Du, Zhengwu Fang, Yongdun Xie, Hongchun Xiong, Linshu Zhao, Jiayu Gu, Huiyuan Li, Huijun Guo, Luxiang Liu |
| Journal | Plant physiology and biochemistry : PPB |
| Year | 2026 |
| DOI |
10.1093/plphys/kiag592
|
| URL | |
| 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.