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Exploring Heterozygosity-Survival Correlations in a Wild Songbird Population: Contrasting Effects between Juvenile and Adult Stages

AutorCanal, David ; Serrano, David ; Potti, Jaime
Fecha de publicación2014
EditorPublic Library of Science
CitaciónPLoS ONE, 9(8): e105020 (2014)
ResumenThe relationship between genetic diversity and fitness, a major issue in evolutionary and conservation biology, is expected to be stronger in traits affected by many loci and those directly influencing fitness. Here we explore the influence of heterozygosity measured at 15 neutral markers on individual survival, one of the most important parameters determining individual fitness. We followed individual survival up to recruitment and during subsequent adult life of 863 fledgling pied flycatchers born in two consecutive breeding seasons. Mark-recapture analyses showed that individual heterozygosity did not influence juvenile or adult survival. In contrast, the genetic relatedness of parents was negatively associated with the offspring’s survival during the adult life, but this effect was not apparent in the juvenile (from fledgling to recruitment) stage. Stochastic factors experienced during the first year of life in this long-distance migratory species may have swamped a relationship between heterozygosity and survival up to recruitment
Versión del editorhttp://dx.doi.org/10.1371/journal.pone.0105020
URIhttp://hdl.handle.net/10261/101352
DOI10.1371/journal.pone.0105020
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