Data/hora: 09/06/2024 04:22:48

Provedor de dados: | Brazilian Archives of Biology and Technology
País: | Brazil
Título: | Microsatellite analysis of the parental contribution of Piaractus mesopotamicus to the production of offspring in the semi-natural system of reproduction
Autores: | Povh,Jayme Aparecido; Ribeiro,Ricardo Pereira; Sirol,Rodolfo Nadez; Streit Jr.,Danilo Pedro; Moreira,Heden Luiz Marques; Siewerdt,Frank; Lopera-Barrero,Nelson Mauricio; Mangolin,Claudete Aparecida; Vargas,Lauro.
Data: | 2010-04-01
Ano: | 2010
Palavras-chave: | Genetic variability; Stock enhancement programme; Reproductive management.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132010000200018
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132010000200018
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.53 n.2 2010
Fonte: | info:eu-repo/semantics/openAccess