Genetic variability of two Nile tilapia strains by microsatellites markers

Detalhes bibliográficos
Autor(a) principal: Moreira, Angela Aparecida
Data de Publicação: 2007
Outros Autores: Hilsdorf, Alexandre Wagner Silva, Silva, Juliana Viana da, Souza, Vânia Ribeiro de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/7597
Resumo: The objective of this work was to evaluate the genetic variability of two Nile tilapia strains (Oreochromis niloticus), Chitralada and Red Stirling, as well as its offsprings submitted to genetic enhancement programs, in intensive systems farming by microsatellites markers. Thirty individuals of each parental strain, 30 crossbred (CH) individuals from Chitralada and Red Stirling strains, and 30 individuals from Red Stirling progeny (RR) were used. Five microsatellites loci were utilized: UNH104, UNH108, UNH118, UNH222 e UNH231. Low values of inbreeding were observed with a negative FIS in both strains and their crossings. Genetic differences between the two strains were detected through FST = 0.131 and RST = 0.130. The parental strains Chitralada and Red Stirling presented 24.4% of genetic distance, which produced 23.5% of hybrid vigor in the CH stock.
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spelling Genetic variability of two Nile tilapia strains by microsatellites markersVariabilidade genética de duas variedades de tilápia nilótica por meio de marcadores microssatélitesOreochromis niloticus; genetic improvement; hybrids; inbreedingOreochromis niloticus; melhoramento genético; híbridos; endogamiaThe objective of this work was to evaluate the genetic variability of two Nile tilapia strains (Oreochromis niloticus), Chitralada and Red Stirling, as well as its offsprings submitted to genetic enhancement programs, in intensive systems farming by microsatellites markers. Thirty individuals of each parental strain, 30 crossbred (CH) individuals from Chitralada and Red Stirling strains, and 30 individuals from Red Stirling progeny (RR) were used. Five microsatellites loci were utilized: UNH104, UNH108, UNH118, UNH222 e UNH231. Low values of inbreeding were observed with a negative FIS in both strains and their crossings. Genetic differences between the two strains were detected through FST = 0.131 and RST = 0.130. The parental strains Chitralada and Red Stirling presented 24.4% of genetic distance, which produced 23.5% of hybrid vigor in the CH stock.O objetivo desse trabalho foi avaliar a variabilidade genética de duas variedades de tilápia nilótica (Oreochromis niloticus), Chitralada e Red Stirling, e de suas progênies submetidas a programas de melhoramento genético, em sistemas intensivos de cultivo por meio de marcadores microssatélites. Foram utilizados 30 animais de cada variedade parental, 30 animais híbridos (CH), provenientes do cruzamento entre as variedades Chitralada e Red Stirling, e 30 animais (RR) provenientes do cruzamento entre os parentais da variedade Red Stirling. Utilizaram-se cinco microssatélites: UNH104, UNH108, UNH118, UNH222 e UNH231. Observaram-se baixos índices de endogamia, com valores de FIS negativo para as duas variedades e seus cruzamentos. Verificou-se diferença genética entre as duas variedades, obtida pelo cálculo do índice de fixação de alelos (FST = 0,131 e RST = 0,130). As variedades parentais Chitralada e Red Stirling apresentaram 24,4% de distância genética, o que se refletiu na presença de vigor híbrido com 23,5% de incremento em rendimento no plantel CH.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMoreira, Angela AparecidaHilsdorf, Alexandre Wagner SilvaSilva, Juliana Viana daSouza, Vânia Ribeiro de2007-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7597Pesquisa Agropecuaria Brasileira; v.42, n.4, abr. 2007; 521-526Pesquisa Agropecuária Brasileira; v.42, n.4, abr. 2007; 521-5261678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7597/4516info:eu-repo/semantics/openAccess2014-05-28T19:27:20Zoai:ojs.seer.sct.embrapa.br:article/7597Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-05-28T19:27:20Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic variability of two Nile tilapia strains by microsatellites markers
Variabilidade genética de duas variedades de tilápia nilótica por meio de marcadores microssatélites
title Genetic variability of two Nile tilapia strains by microsatellites markers
spellingShingle Genetic variability of two Nile tilapia strains by microsatellites markers
Moreira, Angela Aparecida
Oreochromis niloticus; genetic improvement; hybrids; inbreeding
Oreochromis niloticus; melhoramento genético; híbridos; endogamia
title_short Genetic variability of two Nile tilapia strains by microsatellites markers
title_full Genetic variability of two Nile tilapia strains by microsatellites markers
title_fullStr Genetic variability of two Nile tilapia strains by microsatellites markers
title_full_unstemmed Genetic variability of two Nile tilapia strains by microsatellites markers
title_sort Genetic variability of two Nile tilapia strains by microsatellites markers
author Moreira, Angela Aparecida
author_facet Moreira, Angela Aparecida
Hilsdorf, Alexandre Wagner Silva
Silva, Juliana Viana da
Souza, Vânia Ribeiro de
author_role author
author2 Hilsdorf, Alexandre Wagner Silva
Silva, Juliana Viana da
Souza, Vânia Ribeiro de
author2_role author
author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Moreira, Angela Aparecida
Hilsdorf, Alexandre Wagner Silva
Silva, Juliana Viana da
Souza, Vânia Ribeiro de
dc.subject.por.fl_str_mv Oreochromis niloticus; genetic improvement; hybrids; inbreeding
Oreochromis niloticus; melhoramento genético; híbridos; endogamia
topic Oreochromis niloticus; genetic improvement; hybrids; inbreeding
Oreochromis niloticus; melhoramento genético; híbridos; endogamia
description The objective of this work was to evaluate the genetic variability of two Nile tilapia strains (Oreochromis niloticus), Chitralada and Red Stirling, as well as its offsprings submitted to genetic enhancement programs, in intensive systems farming by microsatellites markers. Thirty individuals of each parental strain, 30 crossbred (CH) individuals from Chitralada and Red Stirling strains, and 30 individuals from Red Stirling progeny (RR) were used. Five microsatellites loci were utilized: UNH104, UNH108, UNH118, UNH222 e UNH231. Low values of inbreeding were observed with a negative FIS in both strains and their crossings. Genetic differences between the two strains were detected through FST = 0.131 and RST = 0.130. The parental strains Chitralada and Red Stirling presented 24.4% of genetic distance, which produced 23.5% of hybrid vigor in the CH stock.
publishDate 2007
dc.date.none.fl_str_mv 2007-04-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7597
url https://seer.sct.embrapa.br/index.php/pab/article/view/7597
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7597/4516
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.42, n.4, abr. 2007; 521-526
Pesquisa Agropecuária Brasileira; v.42, n.4, abr. 2007; 521-526
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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