Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/01/2009
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Catfishes of the genus Pseudoplatystoma are very important species due to both their high commercial value and their ecological role as voracious predators. They undertake lengthy migratory movements during their life-cycle, this including reproductive migration which occurs from October to December in the rainy season. In the present study, seven microsatellite loci were analyzed to access genetic variability in two samples of P. reticulatum from the Upper Paraguay Basin. The loci were highly polymorphic (mean = 7.28). According to all analysis, the two samples of P. reticulatum revealed pronounced genetic differentiation. F(st) value was 0.2290, R(st) value 0.1067 and AMOVA 22.90% (F(st)) and 10.67% (R(st)), all being highly significant (p < 0.001). The division of the fishes into two groups was confirmed by microsatellite multi-locus Bayesian assignment testing. The results obtained present evidence of genetic structuring in a P. reticulatum population. |
Formato |
868-873 |
Identificador |
http://dx.doi.org/10.1590/S1415-47572009005000075 Genetics and Molecular Biology. Ribeirao Pret: Soc Brasil Genetica, v. 32, n. 4, p. 868-873, 2009. 1415-4757 http://hdl.handle.net/11449/18623 WOS:000272182700032 S1415-47572009000400032.pdf |
Idioma(s) |
eng |
Publicador |
Soc Brasil Genetica |
Relação |
Genetics and Molecular Biology |
Direitos |
openAccess |
Palavras-Chave | #fish #population genetics #microsatellite #homing #population structure |
Tipo |
info:eu-repo/semantics/article |