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Cross-amplification of heterologous microsatellite markers in Piracanjuba Ciência Rural
Castro,Pedro Luiz de; Ribeiro,Ricardo Pereira; Santos,Silvio Carlos Alves dos; Goes,Elenice Souza dos Reis; Souza,Felipe Pinheiro de; Poveda-Parra,Angela Rocio; Vargas,Lauro; Urrea-Rojas,Angela Maria; Lopera-Barrero,Nelson Mauricio.
ABSTRACT: Brycon orbignyanus, popularly known in Brazil as piracanjuba, is a fish with great economic value but whose natural population drastically decreased in number during the last years. In this context, genetic variability studies of natural stocks and in restocking programs are fundamental for the adoption of conservation measures. Current analysis verifies the cross-amplification of heterologous primers in B. orbignyanus. Fifty-two primers of the species Brycon opalinus, Brycon hilarii, Brycon insignis, Prochilodus sp., Piaractus mesopotamicus, Colossoma macropomum and Oreochromis niloticus were tested. Primers with the best reproducibility were applied to a sample of 20 individuals and the genetic parameters were calculated. Nine primers provided...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Brycon orbignyanus; Conservation; Molecular markers; Heterologous primers.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017001200402
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Multivariate analysis using morphometric and ultrasound information for selection of tilapia (Oreochromis niloticus) breeders R. Bras. Zootec.
Oliveira,Sheila Nogueira de; Ribeiro,Ricardo Pereira; Oliveira,Carlos Antonio Lopes de; Lopera-Barrero,Nelson Mauricio; Borquis,Rusbel Raul Aspilcueta; Zardin,Aline Mayra da Silva Oliveira; Souza,Felipe Pinheiro de; Poveda-Parra,Angela Rocio.
ABSTRACT This study evaluated morphometric and ultrasound information of tilapia (O. niloticus) breeders through multivariate analysis. We applied correlation, clustering, and principal component analysis to a dataset composed of information from 222 male and female breeders of the improved GIFT strain. The body weight, objective of the breeding program, showed a high positive correlation with most of the morphometric parameters. The formation of clusters indicated characteristics responsible for muscle composition and carcass weight. Some characteristics showed a high correlation, such as body weight and fillet weight (0.98 and 0.94 for females and males, respectively), and a high contribution to the explanation of data variability; of the total...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Aquaculture; Breeding; Fish farming; Oreochromis sp.; Phenotypic selection.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100151
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