Identificador persistente para citar o vincular este elemento: http://hdl.handle.net/10553/50018
Título: Gnaphalium teydeum and Gnaphalium luteo-album: Two taxa of the Canary Islands with different genetic histories
Autores/as: González Pérez,Miguel Ángel 
Sosa, P. A. 
González-González; E.A.
Bañares, A.
Marrero, M.
Carque, E.
Polifrone, M.
Clasificación UNESCO: 241714 Genética vegetal
Palabras clave: Canary Islands
Conservation genetics
Endangered species
Genetic diversity
Fecha de publicación: 2008
Editor/a: 0378-2697
Proyectos: Caracterización Genética y Demoráfica de Las Poblaciones Naturales de Tres Endemismos Vegetales Canarios Amenzados Como Estrategia Para El Desarrollo y Aplicación de Un Plan de Conservación 
Publicación seriada: Plant Systematics and Evolution 
Resumen: Gnaphalium teydeum and G. luteo-album (Asteraceae) are two closely congeneric taxa native to the Canary Islands. While G. luteo-album is widespread in the Macaronesian Region, G. teydeum is endemic to the island of Tenerife and considered endangered by IUCN. Using the RAPD technique this study investigated the level and apportionment of genetic diversity of these taxa, trying to solve a taxonomic dispute related to G. teydeum. Based on the 102 DNA fragments generated by 11 primers, a high level of genetic differentiation was found between the taxa (F ST = 0.366), with G. luteo-album showing levels of genetic variability (P = 100%; H = 0.246) higher than those found in G. teydeum (P = 75.5%; H = 0.173). UPGMA dendrogram and Bayesian cluster analysis clearly separated populations from both the species. Overall, results show that although morphological differentiation between G. teydeum and G. luteo-album is not strong, they show marked molecular divergence, supporting the current taxonomic status.
URI: http://hdl.handle.net/10553/50018
ISSN: 0378-2697
DOI: 10.1007/s00606-008-0078-z
Fuente: Plant Systematics and Evolution [ISSN 0378-2697], v. 276, p. 39-49
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