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Molecular Research Progress on Gametophytic Self-Incompatibility in Rosaceae Species
- Source :
- Horticulturae, Vol 10, Iss 10, p 1101 (2024)
- Publication Year :
- 2024
- Publisher :
- MDPI AG, 2024.
-
Abstract
- Self-incompatibility (SI) is a complex mechanism that prevents plants from self-fertilizing to preserve and promote genetic variability. The angiosperm species have developed two different SI systems, the sporophytic (SSI) and the gametophytic (GSI) systems. SI is a significant impediment to steady fruit production in fruit tree species of the Rosaceae. In Rosaceae, GSI is genetically regulated via a single locus, named the ‘S-locus’, which includes a minimum of two polymorphic and relatively intercorrelated S genes: a pistil-expressed S-RNase gene and several pollen-expressed SFBB (S-locus F-Box Brothers) or SFB (S haplotype-specific F-box protein). This necessitates the interaction of S-RNases with the male determinants. Although genetic and molecular analyses of S genes have shown that mutations in both pistils and pollen-specific components induce self-compatibility in many species and cultivars, other genes or molecules outside the S-locus can co-participate in the male gamete rejection in GSI. However, we highlight and synthesize the most recent knowledge on different mechanisms of GSI in Rosaceae in this current review.
- Subjects :
- self-incompatibility
S-locus
SFB
S-RNase
pistil
pollen
Plant culture
SB1-1110
Subjects
Details
- Language :
- English
- ISSN :
- 10101101 and 23117524
- Volume :
- 10
- Issue :
- 10
- Database :
- Directory of Open Access Journals
- Journal :
- Horticulturae
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.bac83ef3be2e473eb6fd4793e0a1733e
- Document Type :
- article
- Full Text :
- https://doi.org/10.3390/horticulturae10101101