Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/19182
Tipo do documento: Artigo
Título: Genetic structure based on nuclear and chloroplast microsatellite loci of Solanum lycocarpum A. St. Hil. (Solanaceae) in Central Brazil
Autor: Martins, Karina
Chaves, Lázaro José
Vencovsky, Roland
Kageyama, Paulo Yoshio
Abstract: Solanum lycocarpum (Solanaceae) is a woody species found in the Brazilian Cerrado. The flowers are pollinated by Xylocopa spp bees, and seeds are dispersed by mammals with distinct home range sizes. As a consequence, relative contributions of pollen and seeds to overall gene flow can vary according to different spatial scales. We studied the genetic structure of four natural populations of S. lycocarpum separated by 19 to 128 km, including individuals located along dirt roads that interlink three of the populations. A total of 294 individuals were genotyped with five nuclear and six chloroplast microsatellite markers. Significant spatial genetic structure was found in the total set of individuals; the Sp statistic was 0.0086. Population differentiation based on the six chloroplast microsatellite markers (θpC = 0.042) was small and similar to that based on the five nuclear microsatellite markers (θp = 0.054). For this set of populations, pollen and seed flow did not differ significantly from one another (pollen-to-seed flow ratio = 1.22). Capability for long distance seed dispersion and colonization of anthropogenic sites contributes to the ability of S. lycocarpum to maintain genetic diversity. Seed dispersion along dirt roads may be critical in preserving S. lycocarpum genetic diversity in fragmented landscapes.
Palavras-chave: cpDNA inheritance
Spatial genetic structure
Gene flow
Pollen flow
Seed dispersion
País: Brasil
Unidade acadêmica: Escola de Agronomia - EA (RG)
Citação: MARTINS, K.; Chaves, L. J.; VENCOVSKY, R.; KAGEYAMA, P. Y. Genetic structure based on nuclear and chloroplast microsatellite loci of Solanum lycocarpum A. St. Hil. (Solanaceae) in Central Brazil. Genetics and Molecular Research, Ribeirão Preto, v. 10, n. 2, p. 665-677, 2011.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.4238/vol10-2gmr1046
Endereço da licença: http://creativecommons.org/licenses/by-nc-nd/4.0/
Identificador do documento: 10.4238/vol10-2gmr1046
URI: http://repositorio.bc.ufg.br/handle/ri/19182
Data de publicação: 2011
Aparece nas coleções:EA - Artigos publicados em periódicos

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