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Microsatellite analysis of the parental contribution of Piaractus mesopotamicus to the production of offspring in the semi-natural system of reproduction

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Microsatellite analysis of the parental contribution of Piaractus mesopotamicus to the production of offspring in the semi-natural system of reproduction

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Título Microsatellite analysis of the parental contribution of Piaractus mesopotamicus to the production of offspring in the semi-natural system of reproduction
Autor Povh, Jayme Aparecido
Ribeiro, Ricardo Pereira
Sirol, Rodolfo Nardez
Streit Júnior, Danilo Pedro
Moreira, Heden Luiz Marques
Siewerdt, Frank
Lopera Barrero, Nelson Mauricio
Mangolin, Claudete Aparecida
Vargas, Lauro
Abstract The objective of this study was to evaluate the genetic diversity and the parental contribution of Piaractus mesopotamicus in the production of offspring in the semi-natural system of reproduction. Twenty parental fishes (eleven males and nine females) and the total of 100 larvae were evaluated by microsatellite marker. The parents and offspring had thirty-one alleles and heterozygosity of 0.550 and 0.563, respectively. The females were fertilised by two up to six males while the males fertilised three up to five females. The contribution of the females and males to the offspring were 66.6 and 58%, respectively. Such results indicated no loss in the genetic variability in the offspring, and the parents had multiple paternity and reasonable contribution to the offspring production.
Contido em Brazilian Archives of biology and tecnology. Vol. 53, n. 2 (mar./abril 2010), p. 389-396
Assunto Peixe
Reprodução animal
Variabilidade genética
[en] Genetic variability
[en] Reproductive management
[en] Stock enhancement programme
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/107429
Arquivos Descrição Formato
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