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Evidences of delayed size recovery in Araucaria angustifolia populations after post-glacial colonization of highlands in Southeastern Brazil
Provedor de dados: 42
Autores: Stefenon,Valdir M.; Behling,Hermann; Gailing,Oliver; Finkeldey,Reiner.
Up to date, little is known about the relationship between historical demography and the current genetic structure of A. Angus As a first effort towards overcoming this lack, microsatellite data scored in six populations and isozyme allele frequencies published for 11 natural stands of this species were analysed in order to assess molecular signatures of populations' demographic history. Signatures of genetic bottlenecks were captured in all analysed populations of southeastern Brazil. Among southern populations, signatures of small effective population size were observed in only three out of 13 populations. Southern populations likely experienced faster recovery of population size after migration onto highlands. Accordingly, current genetic diversity of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araucaria angustifolia; Genetic bottleneck; Population size recovery; Demographic history; Climate dynamics; Paleobotany.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000300005