Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/18645
Tipo do documento: Artigo
Título: Disentangling landscape effects on population genetic structure of a Neotropical savanna tree
Autor: Telles, Mariana Pires de Campos
Dobrovolski, Ricardo
Souza, Kelly da Silva e
Lima, Jacqueline de Souza
Collevatti, Rosane Garcia
Soares, Thannya Nascimento
Chaves, Lázaro José
Diniz Filho, Jose Alexandre Felizola
Abstract: Geographical patterns of genetic variation and population structure and their relationship with habitat loss and fragmentation have been investigated at distinct scales and extents using spatially explicit statistics. Here, we analyzed population genetic structure of Dipteryx alata (Fabaceae; the ª baruº tree), an economically important tree widely distributed in Central Brazil that is endemic to the ª Cerradoº (savanna) biome, relating population genetic divergence with broad-scale landscape patterns. Genetic divergence among 25 populations, estimated based on eight microsatellite loci for a total of 644 individuals, was correlated with landscape features using several forms of Mantel tests (standard Mantel correlations, Mantel correlograms, partial correlations, and multiple regression). Patterns of genetic divergence are significantly correlated with human-driven landscape features of habitat loss and fragmentation, after taking into account isolation-by-distance and historical effects of range expansion after the last glacial maximum. Our findings present important implications for the conservation of this species, because interruption of gene flow by habitat loss and fragmentation jeopardize the persistence of population in the medium- and long term due to disruption of demographic patterns, increased endogamy, and recruitment problems.
Palavras-chave: Baru tree
Cerrado
Correlogram
Landscape metrics
Mantel tests
Microsatellites
País: Brasil
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: TELLES, Mariana Pires de Campos et al. Disentangling landscape effects on population genetic structure of a neotropical savanna tree. Natureza & Conservação, Curitiba, v. 12, n. 1, p. 65-70, 2014.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.4322/natcon.2014.012
Identificador do documento: 10.4322/natcon.2014.012
URI: http://repositorio.bc.ufg.br/handle/ri/18645
Data de publicação: 2014
Aparece nas coleções:ICB - Artigos publicados em periódicos

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