Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin

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...

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Autores principales: de Abreu, Marcia Matos, Pereira, Luiz Henrique Garcia, Vila, Vilma Barretto, Foresti, Fausto, Oliveira, Claudio
Formato: Texto
Lenguaje:English
Publicado: Sociedade Brasileira de Genética 2009
Materias:
Evolutionary Genetics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3036895/
https://www.ncbi.nlm.nih.gov/pubmed/21637467
http://dx.doi.org/10.1590/S1415-47572009005000075
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author de Abreu, Marcia Matos
Pereira, Luiz Henrique Garcia
Vila, Vilma Barretto
Foresti, Fausto
Oliveira, Claudio
author_facet de Abreu, Marcia Matos
Pereira, Luiz Henrique Garcia
Vila, Vilma Barretto
Foresti, Fausto
Oliveira, Claudio
author_sort de Abreu, Marcia Matos
collection PubMed
description 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.
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spelling pubmed-30368952011-06-02 Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin de Abreu, Marcia Matos Pereira, Luiz Henrique Garcia Vila, Vilma Barretto Foresti, Fausto Oliveira, Claudio Genet Mol Biol Evolutionary Genetics 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. Sociedade Brasileira de Genética 2009 2009-12-01 /pmc/articles/PMC3036895/ /pubmed/21637467 http://dx.doi.org/10.1590/S1415-47572009005000075 Text en Copyright © 2009, Sociedade Brasileira de Genética. http://creativecommons.org/licenses/by/2.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Evolutionary Genetics
de Abreu, Marcia Matos
Pereira, Luiz Henrique Garcia
Vila, Vilma Barretto
Foresti, Fausto
Oliveira, Claudio
Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
title Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
title_full Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
title_fullStr Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
title_full_unstemmed Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
title_short Genetic variability of two populations of Pseudoplatystoma reticulatum from the Upper Paraguay River Basin
title_sort genetic variability of two populations of pseudoplatystoma reticulatum from the upper paraguay river basin
topic Evolutionary Genetics
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3036895/
https://www.ncbi.nlm.nih.gov/pubmed/21637467
http://dx.doi.org/10.1590/S1415-47572009005000075
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