RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species

Detalhes bibliográficos
Autor(a) principal: Hatanaka,Terumi
Data de Publicação: 2003
Outros Autores: Galetti Jr.,Pedro Manoel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Genetics and Molecular Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100004
Resumo: Many factors have contributed to the destruction of fish habitats. Hydroelectric dams, water pollution and other environmental changes have resulted in the eradication of natural stocks. The aim of this study was to detect the genetic variation in Prochilodus marggravii from three collection sites in the area of influence of the Três Marias dam (MG) on the São Francisco river (Brazil), using the RAPD technique. The results obtained revealed that the fish in the downstream region nearest the dam have a higher similarity coefficient than those from the other sampling sites that may be related to differences in environmental characteristics in these regions. Additionaly, significant differences in the band frequencies were observed from one collection site to another. These both findings suggest the occurrence of a structured population and have important implications for the conservation of the genetic variability of distinct natural P. marggravii stocks.
id SBG-1_f536e18adf88fb0f0c58251cbf1b9b01
oai_identifier_str oai:scielo:S1415-47572003000100004
network_acronym_str SBG-1
network_name_str Genetics and Molecular Biology
repository_id_str
spelling RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish speciesProchilodusRAPDgenetic structureconservation geneticfishMany factors have contributed to the destruction of fish habitats. Hydroelectric dams, water pollution and other environmental changes have resulted in the eradication of natural stocks. The aim of this study was to detect the genetic variation in Prochilodus marggravii from three collection sites in the area of influence of the Três Marias dam (MG) on the São Francisco river (Brazil), using the RAPD technique. The results obtained revealed that the fish in the downstream region nearest the dam have a higher similarity coefficient than those from the other sampling sites that may be related to differences in environmental characteristics in these regions. Additionaly, significant differences in the band frequencies were observed from one collection site to another. These both findings suggest the occurrence of a structured population and have important implications for the conservation of the genetic variability of distinct natural P. marggravii stocks.Sociedade Brasileira de Genética2003-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100004Genetics and Molecular Biology v.26 n.1 2003reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47572003000100004info:eu-repo/semantics/openAccessHatanaka,TerumiGaletti Jr.,Pedro Manoeleng2003-09-05T00:00:00Zoai:scielo:S1415-47572003000100004Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:2003-09-05T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false
dc.title.none.fl_str_mv RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
title RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
spellingShingle RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
Hatanaka,Terumi
Prochilodus
RAPD
genetic structure
conservation genetic
fish
title_short RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
title_full RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
title_fullStr RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
title_full_unstemmed RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
title_sort RAPD markers indicate the occurrence of structured populations in a migratory freshwater fish species
author Hatanaka,Terumi
author_facet Hatanaka,Terumi
Galetti Jr.,Pedro Manoel
author_role author
author2 Galetti Jr.,Pedro Manoel
author2_role author
dc.contributor.author.fl_str_mv Hatanaka,Terumi
Galetti Jr.,Pedro Manoel
dc.subject.por.fl_str_mv Prochilodus
RAPD
genetic structure
conservation genetic
fish
topic Prochilodus
RAPD
genetic structure
conservation genetic
fish
description Many factors have contributed to the destruction of fish habitats. Hydroelectric dams, water pollution and other environmental changes have resulted in the eradication of natural stocks. The aim of this study was to detect the genetic variation in Prochilodus marggravii from three collection sites in the area of influence of the Três Marias dam (MG) on the São Francisco river (Brazil), using the RAPD technique. The results obtained revealed that the fish in the downstream region nearest the dam have a higher similarity coefficient than those from the other sampling sites that may be related to differences in environmental characteristics in these regions. Additionaly, significant differences in the band frequencies were observed from one collection site to another. These both findings suggest the occurrence of a structured population and have important implications for the conservation of the genetic variability of distinct natural P. marggravii stocks.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100004
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000100004
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1415-47572003000100004
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Genética
publisher.none.fl_str_mv Sociedade Brasileira de Genética
dc.source.none.fl_str_mv Genetics and Molecular Biology v.26 n.1 2003
reponame:Genetics and Molecular Biology
instname:Sociedade Brasileira de Genética (SBG)
instacron:SBG
instname_str Sociedade Brasileira de Genética (SBG)
instacron_str SBG
institution SBG
reponame_str Genetics and Molecular Biology
collection Genetics and Molecular Biology
repository.name.fl_str_mv Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)
repository.mail.fl_str_mv ||editor@gmb.org.br
_version_ 1752122378579607552

Registros relacionados