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| Fazzi-Gomes,Paola; Guerreiro,Sávio; Palheta,Glauber David Almeida; Melo,Nuno Filipe Alves Correa de; Santos,Sidney; Hamoy,Igor. |
| Abstract Colossoma macropomum is the second largest scaled fish of the Amazon. It is economically important for commercial fisheries and for aquaculture, but few studies have examined the diversity and genetic structure of natural populations of this species. The aim of this study was to investigate the levels of genetic variability and connectivity that exist between three natural populations of C. macropomum from the Amazon basin. In total, 247 samples were collected from the municipalities of Tefé, Manaus, and Santarém. The populations were genotyped using a panel of 12 multiplex microsatellite markers. The genetic diversity found in these populations was high and similar to other populations described in the literature. These populations showed a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tambaqui; Genetic variability; Gene flow; Genetic structure; Single sequence repeats. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000100142 |
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| Ferreira,Leandro de Araújo; Fazzi-Gomes,Paola Fabiana; Guerreiro,Sávio; Rodrigues,Marília Danyelle Nunes; Ribeiro-dos-Santos,Ândrea Kely; Santos,Sidney; Hamoy,Igor. |
| ABSTRACT The present study evaluated the genetic variability of the broodstocks of tambaqui hatcheries in the Brazilian state of Pará. Samples were obtained from the caudal fin of 110 broodstocks from one hatchery in each of four municipalities (Santarém, Peixe-Boi, Breu-Branco, and Ulianópolis), representing all the individuals of each hatchery stock. The samples were genotyped using the multiplex system microsatellite markers. Data were used to calculate observed and expected heterozygosity, number of alleles per locus, and allelic richness. The effective population size and inbreeding coefficient were also calculated. The genetic differentiation between populations was evaluated by using FST, and population structuring by the most likely number of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Colossoma macropomum; Fish; Genetic diversity; Hatcheries. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100302 |
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