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dc.contributor.authorMunoz-Sanz, Juan V.
dc.contributor.authorZuriaga, Elena
dc.contributor.authorLópez, Inmaculada
dc.contributor.authorBadenes, María L.
dc.contributor.authorRomero, Carlos
dc.date.accessioned2018-05-09T16:31:00Z
dc.date.available2018-05-09T16:31:00Z
dc.date.issued2017
dc.identifier.citationMunoz-Sanz, J.V., Zuriaga, E., Lopez, I., Badenes, M. L., Romero, C. (2017). Self-(in) compatibility in apricot germplasm is controlled by two major loci, S and M. Bmc Plant Biology, 17, 82.
dc.identifier.issn1471-2229
dc.identifier.urihttp://hdl.handle.net/20.500.11939/6077
dc.description.abstractBackground: Apricot (Prunus armeniaca L.) exhibits a gametophytic self-incompatibility (GSI) system and it is mostly considered as a self-incompatible species though numerous self-compatible exceptions occur. These are mainly linked to the mutated S-C-haplotype carrying an insertion in the S-locus F-box gene that leads to a truncated protein. However, two S-locus unlinked pollen-part mutations (PPMs) termed m and m' have also been reported to confer self-compatibility (SC) in the apricot cultivars 'Canino' and 'Katy', respectively. This work was aimed to explore whether other additional mutations might explain SC in apricot as well. Results: A set of 67 cultivars/accessions with different geographic origins were analyzed by PCR-screening of the S-and M-loci genotypes, contrasting results with the available phenotype data. Up to 20 S-alleles, including 3 new ones, were detected and sequence analysis revealed interesting synonymies and homonymies in particular with S-alleles found in Chinese cultivars. Haplotype analysis performed by genotyping and determining linkage-phases of 7 SSR markers, showed that the m and m' PPMs are linked to the same m(0)-haplotype. Results indicate that m(0)-haplotype is tightly associated with SC in apricot germplasm being quite frequent in Europe and North-America. However, its prevalence is lower than that for S-C in terms of frequency and geographic distribution. Structures of 34 additional M-haplotypes were inferred and analyzed to depict phylogenetic relationships and M1-2 was found to be the closest haplotype to m(0). Genotyping results showed that four cultivars classified as self-compatible do not have neither the S-C-nor the m(0)-haplotype. Conclusions: According to apricot germplasm S-genotyping, a loss of genetic diversity affecting the S-locus has been produced probably due to crop dissemination. Genotyping and phenotyping data support that self-(in) compatibility in apricot relies mainly on the S- but also on the M-locus. Regarding this latter, we have shown that the m(0)-haplotype associated with SC is shared by 'Canino', 'Katy' and many other cultivars. Its origin is still unknown but phylogenetic analysis supports that m(0) arose later in time than S-C from a widely distributed M-haplotype. Lastly, other mutants putatively carrying new mutations conferring SC have also been identified deserving future research.
dc.language.isoen
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.titleSelf-(in) compatibility in apricot germplasm is controlled by two major loci, S and M
dc.typearticle
dc.authorAddressInstituto Valenciano de Investigaciones Agrarias (IVIA), Carretera CV-315, Km. 10’7, 46113 Moncada (Valencia), Españaes
dc.entidadIVIACentro de Citricultura y Producción Vegetal
dc.identifier.doi10.1186/s12870-017-1027-1
dc.identifier.url
dc.journal.abbreviatedTitle
dc.journal.issueNumber
dc.journal.titleBmc Plant Biology
dc.journal.volumeNumber17
dc.page.final
dc.page.initial82
dc.source.typeelectronico
dc.type.hasVersionpublishedVersion


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