dc.creator | Silva Hernández de Santaolalla, José Luis | es |
dc.creator | Brennan, Adrian C. | es |
dc.creator | Mejías Gimeno, José Antonio | es |
dc.date.accessioned | 2016-12-14T12:28:36Z | |
dc.date.available | 2016-12-14T12:28:36Z | |
dc.date.issued | 2016 | |
dc.identifier.citation | Silva Hernández de Santaolalla, J.L., Brennan, A.C. y Mejías Gimeno, J.A. (2016). Population genetics of self-incompatibility in a clade of relict cliff-dwelling plant species. AoB Plants, 8 | |
dc.identifier.issn | 2041-2851 | es |
dc.identifier.uri | http://hdl.handle.net/11441/50436 | |
dc.description.abstract | The mating systems of species in small or fragmented populations impact upon their persistence. Small self-incompatible (SI) populations risk losing S allele diversity, responsible for the SI response, by drift thereby limiting mate availability and leading to population decline or SI system breakdown. But populations of relict and/or endemic species have resisted these demographic conditions over long periods suggesting their mating systems have adapted. To address a lack of empirical data on this topic, we studied the SI systems of three relict cliff-dwelling species of Sonchus section Pustulati (Asteraceae): S. masguindalii, S. fragilis and S. pustulatus in the western Mediterranean region. We performed controlled pollinations within and between individuals to measure index of SI (ISI) expression and identify S alleles in multiple population samples. Sonchus masguindalii and S. pustulatus showed strong SI (ISI = 0.6–1.0) compared to S. fragilis (ISI = 0.1–0.7). Just five S alleles were estimated for Spanish S. pustulatus and a moderate 11-15 S alleles for Moroccan S. pustulatus and S. fragilis, respectively. The fact that autonomous fruit set was generally improved by active self-pollination in self-compatible S. fragilis suggests that individuals with weak SI can show a wide range of outcrossing levels dependent on the degree of self or outcross pollen that pollinators bear. We conclude that frequent S allele dominance interactions that mask the incompatibility interactions of recessive S alleles leading to higher mate availability and partial breakdown of SI leading to mixed mating, both contribute to reproductive resilience in this group. | es |
dc.description.sponsorship | Ministerio de Ciencia e Innovación (España) BES–2007–17066 CGL2010–16512 CGL2006–00817 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | Oxford University Press on behalf of the Annals of Botany Company | es |
dc.relation.ispartof | AoB Plants, 8 | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Breakdown of SI | es |
dc.subject | Diallel crosses | es |
dc.subject | Index of self-incompatibility | es |
dc.subject | S allele diversity | es |
dc.subject | Sonchus section Pustulati | es |
dc.subject | Sporophytic self-incompatibility | es |
dc.subject | Resilience | es |
dc.title | Population genetics of self-incompatibility in a clade of relict cliff-dwelling plant species | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Biología Vegetal y Ecología | es |
dc.relation.projectID | BES–2007–17066 | es |
dc.relation.projectID | CGL2010–16512 | es |
dc.relation.projectID | CGL2006–00817 | es |
dc.relation.publisherversion | http://dx.doi.org/10.1093/aobpla/plw029 | es |
dc.identifier.doi | 10.1093/aobpla/plw029 | es |
idus.format.extent | 45 p. | es |
dc.journaltitle | AoB Plants | es |
dc.publication.volumen | 8 | es |
dc.contributor.funder | Ministerio de Ciencia e Innovación (MICIN). España | |