Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/19197
Tipo do documento: Artigo
Título: Population structures of Brazilian tall coconut (Cocos nucifera L.) by microsatellite markers
Autor: Ribeiro, Francisco Elias
Baudouin, Luc
Lebrun, Patricia
Chaves, Lázaro José
Brondani, Claudio
Zucchi, Maria Imaculada
Vencovsky, Roland
Abstract: Coconut palms of the Tall group were introduced to Brazil from the Cape Verde Islands in 1553. The present study sought to evaluate the genetic diversity among and within Brazilian Tall coconut populations. Samples were collected of 195 trees from 10 populations. Genetic diversity was accessed by investigating 13 simple sequence repeats (SSR) loci. This provided a total of 68 alleles, ranging from 2 to 13 alleles per locus, with an average of 5.23. The mean values of gene diversity (He) and observed heterozygosity (Ho) were 0.459 and 0.443, respectively. The genetic differentiation among populations was estimated at p 0.1600 and the estimated apparent outcrossing rate was ta = 0.92. Estimates of genetic distances between the populations varied from 0.034 to 0.390. Genetic distance and the corresponding clustering analysis indicate the formation of two groups. The first consists of the Baía Formosa, Georgino Avelino, and São José do Mipibu populations and the second consists of the Japoatã, Pacatuba, and Praia do Forte populations. The correlation matrix between genetic and geographic distances was positive and significant at a 1% probability. Taken together, our results suggest a spatial structuring of the genetic variability among the populations. Geographically closer populations exhibited greater similarities.
Palavras-chave: Coconut
Genetic diversity
Genetic variability
Molecular markers
SSR
País: Brasil
Unidade acadêmica: Escola de Agronomia - EA (RG)
Citação: RIBEIRO, Francisco E. et al. Population structures of Brazilian Tall coconut (Cocos nucifera L.) by microsatellite markers. Genetics and Molecular Biology, Ribeirão Preto, v. 33, n. 4, p. 696-702, Sept. 2010.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1590/S1415-47572010005000077
Endereço da licença: http://creativecommons.org/licenses/by-nc-nd/4.0/
Identificador do documento: 10.1590/S1415-47572010005000077
URI: http://repositorio.bc.ufg.br/handle/ri/19197
Data de publicação: 2010
Aparece nas coleções:EA - Artigos publicados em periódicos

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