genetic diversity of pacu and piapara broodstocks in restocking programs in the rivers paraná and paranapanema (brazil)
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ID: 253261
2016
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Abstract
The genetic diversity of Piaractus mesopotamicus (pacu) and Leporinus elongatus (piapara) broodstocks used in restocking programs in the rivers Paraná and Paranapanema is analyzed. One hundred and twenty specimens (two broodstocks of each species) from fish ponds in Palotina PR Brazil and in Salto Grande SP Brazil were assessed. Ten primers produced 96 fragments, comprising 68 (70.83%) and 94 (97.92%) polymorphic fragments for P. mesopotamicus and L. elongatus broodstocks, respectively. Differences (p < 0.05) in the frequency of 15 and 27 fragments were detected for each species, without exclusive fragments. Shannon Index (0.347 - 0.572) and the percentage of polymorphic fragments (57.3% - 94.8%) revealed high intra-population genetic variability for all broodstocks. Results of molecular variance analyses (AMOVA) showed that most variations do not lie between the broodstocks but within each broodstock (89%). Genetic (0.088 and 0.142) and identity (0.916 and 0.868) distance rates demonstrated similarity between the broodstocks of each species, corroborated by Fst (0.1023 and 010.27) and Nm (4.18 and 4.33) rates, with a slight genetic difference due to genic flux. High intrapopulation genetic variability and similarity between the broodstocks of each species was also detected, proving a common ancestry.
| Reference Key |
lopera-barrero2016semina:genetic
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|---|---|
| Authors | ;Nelson Mauricio Lopera-Barrero;Jayme Aparecido Povh;Rodolfo Nardez Sirol;Maria del Pilar Rodriguez-Rodriguez;Ed Christian Suzuki de Lima;Angela Rocio Poveda-Parra;Felipe Pinheiro de Souza;Pâmela Juliana Furlan Murari;Rodrigo Alejandro Arellano Otonel;Ricardo Pereira Ribeiro |
| Journal | frontiers in neuroendocrinology |
| Year | 2016 |
| DOI |
10.5433/1679-0359.2016v37n4Supl1p2365
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| URL | |
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