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Genetic structure and population differentiation of the Mediterranean pioneer spiny broom Calicotome villosa across the Strait of Gibraltar

Opened Access Genetic structure and population differentiation of the Mediterranean pioneer spiny broom Calicotome villosa across the Strait of Gibraltar

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Autor: Arroyo Marín, Juan
Aparicio Martínez, Abelardo
González Albaladejo, Rafael
Muñoz García, Joaquín
Braza, Rita
Departamento: Universidad de Sevilla. Departamento de Biología Vegetal y Ecología
Fecha: 2008
Publicado en: Biological Journal of the Linnean Society, 93 (1), 39-51.
Tipo de documento: Artículo
Resumen: The region around the Strait of Gibraltar is considered to be one of the most relevant 'hot spots' of biodiversity in the Mediterranean Basin due to its historical, biogeographical, and ecological features. Prominent among these is its role as a land bridge for the migration and differentiation of species during the Pleistocene, as a consequence of the lowering of sea level and climate changes associated with the Ice Ages. In the present study, we report a multilevel hierarchical investigation of the genetic diversity of Calicotome villosa, a common pioneer legume shrub, at the regional scale. The results of genetic analysis of progeny arrays are consistent with a predominantly outcrossing mating system in all the populations analysed. Geographically, a pattern of population isolation by distance was found, but the Strait accounted for only approximately 2% of the among-population genetic differentiation. Consequently, extensive historical gene flow appears to be the rule for this spe...
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Cita: Arroyo, J., Abelardo Aparicio, R.G., Albaladejo, R.G., Muñoz García, J. y Braza, R. (2008). Genetic structure and population differentiation of the Mediterranean pioneer spiny broom Calicotome villosa across the Strait of Gibraltar. Biological Journal of the Linnean Society, 93 (1), 39-51.
Tamaño: 334.9Kb
Formato: PDF

URI: https://hdl.handle.net/11441/73872

DOI: 10.1111/j.1095-8312.2007.00916.x

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