An ancestral T2 RNase provides insights into the origin and evolution of self-incompatible S-RNase

Clicks: 8
ID: 338761
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 #653 of 671 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 671 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
With the evolution of true floral structures, angiosperms have become the most diverse and successful plant group, a success largely attributed to the genetic diversity generated by self-incompatibility. The canonical S-RNase (class III T2 RNase)/F-boxes locus that mediates gametophytic self-incompatibility is present across multiple lineages of core eudicots, and its origin has been traced back to the last common ancestor of core eudicots. However, because class III T2 RNases are completely absent from non-eudicot taxa, the origin of this S-RNase/F-boxes locus remains elusive. Here, we identify a rare class TI T2 RNase (EVM0017713)/F-boxes locus in the basal eudicot Akebia trifoliata as a candidate S-locus for late-acting self-incompatibility, sharing molecular features with the S-RNase/F-boxes locus. The class TI T2 RNase subfamily exhibits a continuous gradient transition from class I to class III T2 RNase subfamilies in terms of phylogenetic distribution, molecular structural characteristics, physicochemical properties, and gene structure. Crucially, the class TI EVM0017713/F-boxes locus is ancient and collinear with the S-RNase/F-boxes loci. These results suggest that the class TI T2 RNase/F-box locus may represent an ancestral form of the S-RNase/F-box system, offering new insights into the origin and evolution of plant self-incompatibility.
Reference Key
openalex_W7225254842 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Huai Yang, Jie Li, Shengfu Zhong, Rui Han, Xiaoxiao Yi, Chen Chen, Xueyun Hu, Qing Li, Peigao Luo
Are you one of these authors? Claim your profile
Journal Plant physiology and biochemistry : PPB
Year 2026
DOI
10.1093/plphys/kiag821
URL
https://doi.org/10.1093/plphys/kiag821
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.