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| PENHA,Diego dos Santos; SOUZA,Felipe Pinheiro de; LIMA,Ed Christian Suzuki de; URREA-ROJAS,Angela Maria; PANDOLFI,Victor César Freitas; YAMACHITA,Andrei Lincoln; POVH,Jayme Aparecido; LEITE,Natalia Gonçalves; PEREIRA,Ulisses de Pádua; LOPERA-BARRERO,Nelson Mauricio. |
| ABSTRACT The genusBryconcomprises fish species of significant socioeconomic and biological importance in Brazil. Despite that, the genetic knowledge about these species is scarce, especially regardingBrycon falcatus. Thus, the objective of this study was to evaluate the transferability of heterologous microsatellite primers inB. falcatus for the first time. Heterologous primers obtained from B. opalinus, B. hilarii, B. insignis, B. orbignyanus, B. amazonicus, Prochilodus argenteus, Prochilodus lineatus, Piaractus mesopotamicus, and Colossoma macropomum were evaluated. The primers that showed the best amplification patterns were applied to a sample of 22 individuals and the genetic parameters were calculated. Nine primers displayed satisfactory... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bryconidae; Cross amplification; Genetic conservation; Genetic variability; SSR. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300232 |
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| LEWANDOWSKI,Vanessa; SARY,Cesar; ETTA,Jaisa CAS; SOUZA,Felipe Pinheiro de; CASTRO,Pedro Luiz de; GOES,Elenice Souza dos Reis; OLIVEIRA,Carlos Antonio Lopes de; RIBEIRO,Ricardo Pereira; VARGAS,Lauro. |
| ABSTRACT Specimens of cultured zebrafish acquired from different fish farms in Brazil may show genetic variability and alteration in allele frequency due to genetic drift and selective pressure in a captive environment, resulting in the differentiation of productive and reproductive characteristics. The aim of this study was to evaluate the genetic variability and reproductive characteristics of 180 zebrafish specimens from six Brazilian fish farms. A deviation from the Hardy-Weinberg equilibrium was observed in all evaluated stocks. Differentiation among stocks was observed in the amount of genetic variability with respect to observed heterozygosity and the inbreeding coefficient (FIS). Genetic distance between stocks was determined through the Fst index,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal model; Consanguinity; DNA; Female; Fish larvae. |
| Ano: 2022 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2022000200223 |
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