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Caracterización molecular de la palmera canaria (Phoenix canariensis) como base para su conservación

Authors: González Pérez, Miguel Ángel; González Pérez, Miguel Ángel;

Caracterización molecular de la palmera canaria (Phoenix canariensis) como base para su conservación

Abstract

Electroforésis isonezimática de 18 sistemas enzimáticos fueron llevados a cabo para estimar los niveles y estructuración genética dentro y entre poblaciones naturales de la especie de palmera endémica de las islas Canarias (Phoenix canariensis), para evaluar su relación genética con su congénere ampliamente distribuido Phoenix dactylifera, y para determinar comparativamente la variación genética en las poblaciones donde las dos especies coexisten con plantas morfológicamente intermedias (poblaciones mezcla). Nuestro datos revelaron que el componente de variación genética intra-poblacional suponía el 75% del total de la variación genética detectada en P. canariensis. Tanto el dendrograma UPGMA basado en la distancia genética de Nei (1972) como el PCA basado en las frecuencias alélicas separaban claramente las poblaciones de P. canariensis y P. dactylifera. Además se mostraba una relación genética más cercana entre P. canariensis y las poblaciones en donde ambas especies estaban presentes (poblaciones mezcla), exhibiendo estas patrones de estructuración genética dentro de las poblaciones similares.

Electrophoretic analysis of 18 isoenzyme loci was used to estimate the levels and structuring of genetic variation within and among natural populations of the protected endemic palm species from the Canary Islands (Phoenix canariensis), to evaluate its genetic relationship with the widespread congener P. dactylifera, and to assess comparatively the genetic variation in the populations where the two species coexist with morphologically intermediate plants (mixed populations). Our survey revealed that the within-population component explains roughly 75% of the genetic variation levels detected in P. canariensis. Both the UPGMA tree based on Nei’s (1972) genetic distance and a PCA on allele frequencies consistently separate populations of P. canariensis and P. dactylifera and reveal a closer genetic relationship between P. canariensis and the mixed populations, that also display analogous patterns of short-range, within-population genetic structure.

Premio extraordinario, Área de Experimentales

Programa de doctorado: Medio Ambiente

Country
Spain
Keywords

2417 Biología vegetal (botánica), Palmeras, Canarias

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green