Self-compatibility in Prunus species : diversity of mutations
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Date
2012
Authors
Socias i Company, RafelFernández i Martí, Angel V.
Kodad, Ossama
Alonso Segura, José Manuel
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conferenceObjectAbstract
Self-compatibility (SC) is an interesting horticultural trait. Molecular approaches
have been recently applied to the elucidation of the interacting pollen-pistil mechanism
and to the identification of the genes involved in pistil-pollen recognition. Both
mutations of the pistil S-RNases and the pollen SFBs have been reported to explain the
changes in the S allele expression. Stylar-part mutations have revealed that ribonuclease
activity of the S-RNases is required to inhibit pollen growth. A defective function of the
pollen may also give rise to SC. Breakdown of SI has also been associated with
mutations affecting modifier loci unlinked to the S-locus. Additionally, a double
phenotypic expression of the same genotype has been observed. The nature of these
different mutations has only been identified in a few cases, including deletions,
insertions, shift mutations and, more recently, epigenetic changes.
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Bibliographic citation
Rafel Socias i Company, Angel Fernández i Martí, Ossama Kodad, José M. Alonso. “Self-compatibility in Prunus species. Diversity of mutations”. Eucarpia 19th General Congress: Plant Breeding for Future Generations, Budapest, 21-24 mayo 2012, p. 196-199
Other field subjects
PrunusAutocompatibilidad
Fitomejoramiento
Fruticultura
Sponsorship
EUCARPIA. European Association for Research on Plant Breeding