Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservation
In recent years, the genetic monitoring of broodstocks in fish farming has been greatly highlighted due to its importance in the management and improvement of their production and conservation. Current study evaluates the genetic diversity of four Tambaqui broodstocks (Colossoma macropomum) in the s...
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2016-09-01
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doaj-70553e1d319242f49b6aec6e056b3a5a2020-11-25T01:01:52ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592016-09-01374Supl12375238610.5433/1679-0359.2016v37n4Supl1p237514373Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservationRicardo Pereira Ribeiro0Maria del Pilar Rodriguez-Rodriguez1Emiko Kawakami de Resende2Felipe Pinheiro de Souza3Jayme Aparecido Povh4Angela Rocio Poveda-Parra5Elenice Souza dos Reis Goes6Juliana Minardi Galo7Maxwel Bernardo Junior8Nelson Mauricio Lopera-Barrero9Universidade Estadual de MaringáUniversidade Federal dos Vales de Jequitinhonha e MucuriEmpresa Brasileira de Pesquisa AgropecuáriaUniversidade Estadual de LondrinaUniversidade Federal de Mato Grosso do SulUniversidade Estadual de LondrinaUniversidade Estadual de MaringáInstituto Federal de Educação, Ciência e Tecnologia de RondôniaUniversidade Estadual de LondrinaUniversidade Estadual de LondrinaIn recent years, the genetic monitoring of broodstocks in fish farming has been greatly highlighted due to its importance in the management and improvement of their production and conservation. Current study evaluates the genetic diversity of four Tambaqui broodstocks (Colossoma macropomum) in the state of Rondônia (Brazil) and discusses activities towards the species´s correct production management and conservation. Nine primers were employed to analyze 94 specimens from four fish farms in the municipalities of Ji-Paraná (JP), Ouro Preto do Oeste (OP), Presidente Médici (PM) and Rolim de Moura (RM). Differences in the frequency of 38 fragments, with an exclusive fragment in JP and OP, were reported. High polymorphism (52.40 to 64.60%) and Shannon Index (0.313 to 0.382) rates were observed. The analysis of molecular variance (AMOVA) demonstrated that most variation is within each stock. The identity and genetic distance between the groups ranged between 0.927 and 0.954 and between 0.047 and 0.076 respectively, with shortest distance between the OPxPM and JPxRM groups. Genetic differentiation ranged from moderate to high (Fst = 0.081 to 0.179) and the number of migrants per generation was moderate (Nm = 3.83 to 6.24). As a rule, stocks showed high genetic variability and moderate / high differentiation and genetic distance between them. The results allowed direct conservation programs and increase the productivity of this species in fish farming through breeding programs.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/22718Colossoma macropomumEstoque de reprodutoresDiversidade genéticaPeixesVariabilidade genética. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ricardo Pereira Ribeiro Maria del Pilar Rodriguez-Rodriguez Emiko Kawakami de Resende Felipe Pinheiro de Souza Jayme Aparecido Povh Angela Rocio Poveda-Parra Elenice Souza dos Reis Goes Juliana Minardi Galo Maxwel Bernardo Junior Nelson Mauricio Lopera-Barrero |
spellingShingle |
Ricardo Pereira Ribeiro Maria del Pilar Rodriguez-Rodriguez Emiko Kawakami de Resende Felipe Pinheiro de Souza Jayme Aparecido Povh Angela Rocio Poveda-Parra Elenice Souza dos Reis Goes Juliana Minardi Galo Maxwel Bernardo Junior Nelson Mauricio Lopera-Barrero Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservation Semina: Ciências Agrárias Colossoma macropomum Estoque de reprodutores Diversidade genética Peixes Variabilidade genética. |
author_facet |
Ricardo Pereira Ribeiro Maria del Pilar Rodriguez-Rodriguez Emiko Kawakami de Resende Felipe Pinheiro de Souza Jayme Aparecido Povh Angela Rocio Poveda-Parra Elenice Souza dos Reis Goes Juliana Minardi Galo Maxwel Bernardo Junior Nelson Mauricio Lopera-Barrero |
author_sort |
Ricardo Pereira Ribeiro |
title |
Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservation |
title_short |
Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservation |
title_full |
Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservation |
title_fullStr |
Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservation |
title_full_unstemmed |
Genetic characteristics of Tambaqui broodstocks in the state of Rondônia, Brazil: implications on production and conservation |
title_sort |
genetic characteristics of tambaqui broodstocks in the state of rondônia, brazil: implications on production and conservation |
publisher |
Universidade Estadual de Londrina |
series |
Semina: Ciências Agrárias |
issn |
1676-546X 1679-0359 |
publishDate |
2016-09-01 |
description |
In recent years, the genetic monitoring of broodstocks in fish farming has been greatly highlighted due to its importance in the management and improvement of their production and conservation. Current study evaluates the genetic diversity of four Tambaqui broodstocks (Colossoma macropomum) in the state of Rondônia (Brazil) and discusses activities towards the species´s correct production management and conservation. Nine primers were employed to analyze 94 specimens from four fish farms in the municipalities of Ji-Paraná (JP), Ouro Preto do Oeste (OP), Presidente Médici (PM) and Rolim de Moura (RM). Differences in the frequency of 38 fragments, with an exclusive fragment in JP and OP, were reported. High polymorphism (52.40 to 64.60%) and Shannon Index (0.313 to 0.382) rates were observed. The analysis of molecular variance (AMOVA) demonstrated that most variation is within each stock. The identity and genetic distance between the groups ranged between 0.927 and 0.954 and between 0.047 and 0.076 respectively, with shortest distance between the OPxPM and JPxRM groups. Genetic differentiation ranged from moderate to high (Fst = 0.081 to 0.179) and the number of migrants per generation was moderate (Nm = 3.83 to 6.24). As a rule, stocks showed high genetic variability and moderate / high differentiation and genetic distance between them. The results allowed direct conservation programs and increase the productivity of this species in fish farming through breeding programs. |
topic |
Colossoma macropomum Estoque de reprodutores Diversidade genética Peixes Variabilidade genética. |
url |
http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/22718 |
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