Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/46890
Título: Patterns of pollen dispersal in a small population of the Canarian endemic palm (Phoenix canariensis)
Autores/as: Saro, I. 
Robledo-Arnuncio, J. J.
González Pérez,Miguel Ángel 
Sosa, P. A. 
Clasificación UNESCO: 241714 Genética vegetal
Palabras clave: Pollination
Population genetics
Phoenix P. canariensis
Fecha de publicación: 2014
Editor/a: 0018-067X
Proyectos: Determinacion de la Estructuracion y Flujo Genetico de Las Poblaciones Naturales de la Palmera Canaria y Grado de Introgresion Con Taxones Afines en Canarias, Mediante Marcadores Moleculares 
Publicación seriada: Heredity 
Resumen: The genetic diversity of small populations is greatly influenced by local dispersal patterns and genetic connectivity among populations, with pollen dispersal being the major component of gene flow in many plants species. Patterns of pollen dispersal, mating system parameters and spatial genetic structure were investigated in a small isolated population of the emblematic palm Phoenix canariensis in Gran Canaria island (Canary Islands). All adult palms present in the study population (n=182), as well as 616 seeds collected from 22 female palms, were mapped and genotyped at 8 microsatellite loci. Mating system analysis revealed an average of 5.8 effective pollen donors (Nep) per female. There was strong variation in correlated paternity rates across maternal progenies (ranging from null to 0.9) that could not be explained by the location and density of local males around focal females. Paternity analysis revealed a mean effective pollen dispersal distance of ∼71 m, with ∼70% of effective pollen originating from a distance of <75 m, and 90% from <200 m. A spatially explicit mating model indicated a leptokurtic pollen dispersal kernel, significant pollen immigration (12%) from external palm groves and a directional pollen dispersal pattern that seems consistent with local altitudinal air movement. No evidence of inbreeding or genetic diversity erosion was found, but spatial genetic structure was detected in the small palm population. Overall, the results suggest substantial pollen dispersal over the studied population, genetic connectivity among different palm groves and some resilience to neutral genetic erosion and subsequently to fragmentation.
URI: http://hdl.handle.net/10553/46890
ISSN: 0018-067X
DOI: 10.1038/hdy.2014.16
Fuente: Heredity [ISSN 0018-067X], v. 113, p. 215-223
Colección:Artículos
Vista completa

Citas SCOPUSTM   

32
actualizado el 24-mar-2024

Citas de WEB OF SCIENCETM
Citations

32
actualizado el 25-feb-2024

Visitas

63
actualizado el 13-ene-2024

Google ScholarTM

Verifica

Altmetric


Comparte



Exporta metadatos



Los elementos en ULPGC accedaCRIS están protegidos por derechos de autor con todos los derechos reservados, a menos que se indique lo contrario.