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Please use this identifier to cite or link to this item: http://dspace.utalca.cl/handle/1950/1553

Title: Genetic diversity and structure of natural and managed populations of Cedrus atlantica (Pinaceae) assessed using random amplified polymorphic DNA
Authors: Renau-Morata, B.
Nebauer, S.G.
Sales, E.
Allainguillaume, J.
Caligari, P.D.S.
Segura, J
Keywords: Cedrus atlantica
genetic diversity
population structure
Issue Date: May-2005
Publisher: Botanical Society of America
Citation: American Journal of Botany 92 (5): 875-884
Abstract: Cedrus atlantica (Pinaceae) is a large and exceptionally long-lived conifer native to the Rif and Atlas Mountains of North Africa. To assess levels and patterns of genetic diversity of this species. samples were obtained throughout the natural range in Morocco and from a forest plantation in Arbucies, Girona (Spain) and analyzed using RAPD markers. Within-population genetic diversity was high and comparable to that revealed by isozymes. Managed populations harbored levels of genetic variation similar to those found in their natural counterparts. Genotypic analyses Of Molecular variance (AMOVA) found that most variation was within populations. but significant differentiation was also found between populations. particularly in Morocco. Bayesian estimates of F,, corroborated the AMOVA partitioning and provided evidence for Population differentiation in C. atlantica. Both distance- and Bayesian-based Clustering methods revealed that Moroccan populations comprise two genetically distinct groups. Within each group, estimates of population differentiation were close to those previously reported in other gymnosperms. These results are interpreted in the context of the postglacial history of the species and human impact. The high degree of among-group differentiation recorded here highlights the need for additional conservation measures for some Moroccan Populations of C. atlantica.
Description: Caligari, P.D.S. Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile.
URI: http://dspace.utalca.cl/handle/1950/1553
ISSN: 0002-9122
Appears in Collections:Artículos en publicaciones ISI - Universidad de Talca

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