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Título

Genetic and Phenotypic Differentiation between the Critically Endangered Balearic Shearwater and Neighboring Colonies of Its Sibling Species

AutorGenovart, Meritxell CSIC ORCID ; Oro, Daniel CSIC ORCID CVN ; Juste, Javier CSIC ORCID; Contreras-Díaz, Hermans
Palabras claveConservation
Hybridization
incomplete lineage sorting
population structure
Puffinus mauretanicus
Puffinus yelkouan
Fecha de publicaciónmay-2012
EditorOxford University Press
CitaciónJournal of Heredity 2012:103(3):330–341
ResumenUnderstanding the demographic and evolutionary processes within and between populations is essential for developing effective management strategies. Thus, for establishing good conservation policies both genetic and phenotypic studies are crucial. We carried out an integrated analysis of genetic and phenotypic characters of the critically endangered Balearic shearwater Puffinus mauretanicus (182 individuals) and compared them with those of 2 nearby colonies of Yelkouan shearwater P. yelkouan (40 individuals), a species for which hybridization has been hypothesized. The results of the microsatellite analyses were compared with previous mitochondrial DNA analyses. Genetic variability was low in the Balearic shearwater and high levels of inbreeding were revealed at local scale. Most dispersal in Balearic shearwaters was to neighboring sites, even though low levels of population structure were found. The admixture between the 2 species was much higher at nuclear than at mitochondrial level, but phenotypic characters would seem to indicate that a lower level of admixture exists. Individual nuclear DNA, mtDNA, and phenotype did not match at individual level, showing that migration alone cannot explain this phenomenon. We suggest that these 2 young shearwater species could have been involved in processes of divergence and admixing. However, due to the longer coalescence times in nuclear markers, incomplete lineage sorting cannot be ruled out
Versión del editorhttp://dx.doi.org/10.1093/jhered/ess010
URIhttp://hdl.handle.net/10261/49351
DOI10.1093/jhered/ess010
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