Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Nauplius |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972012000100003 |
Resumo: | The Rio de la Plata. located between Uruguay and Argentina, generates a tremendous freshwater influx from the estuary into the coastal sea. It is thus suggested to constitute a biogeographic barrier for many taxa exhibiting a marine planktonic larval dispersal. However, evidence for corresponding intraspecific dispersal constraint has yet to be provided. We compared mitochondrial haplotypes of ten individuals for each of two populations of Uca (Leptuca) uruguayensis north and south of the estuary to examine the potential effect of the Rio de la Plata on the species' distribution. The populations are separated by nearly 2,000 km and were collected in São Paulo State (Brazil) and Mar Chiquita (Argentina). We found no significant indication for restricted gene flow between them, based on 823 basepairs of the mitochondrial cytochrome c oxidase subunit I gene. The structure of the corresponding haplotype network and the estimated nucleotide diversities, however, suggest that the Argentinean population is genetically more diverse than the one from Brazil. In order to establish possible significant differences in haplotype distribution, further research including more populations and larger sample sizes will be necessary. |
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Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flowCOIGenetic homogeneitymtDNA sequenceRio de la PlataThe Rio de la Plata. located between Uruguay and Argentina, generates a tremendous freshwater influx from the estuary into the coastal sea. It is thus suggested to constitute a biogeographic barrier for many taxa exhibiting a marine planktonic larval dispersal. However, evidence for corresponding intraspecific dispersal constraint has yet to be provided. We compared mitochondrial haplotypes of ten individuals for each of two populations of Uca (Leptuca) uruguayensis north and south of the estuary to examine the potential effect of the Rio de la Plata on the species' distribution. The populations are separated by nearly 2,000 km and were collected in São Paulo State (Brazil) and Mar Chiquita (Argentina). We found no significant indication for restricted gene flow between them, based on 823 basepairs of the mitochondrial cytochrome c oxidase subunit I gene. The structure of the corresponding haplotype network and the estimated nucleotide diversities, however, suggest that the Argentinean population is genetically more diverse than the one from Brazil. In order to establish possible significant differences in haplotype distribution, further research including more populations and larger sample sizes will be necessary.Sociedade Brasileira de Carcinologia2012-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972012000100003Nauplius v.20 n.1 2012reponame:Naupliusinstname:Sociedade Brasileira de Carcinologia (SBCA)instacron:SBCA10.1590/S0104-64972012000100003info:eu-repo/semantics/openAccessLaurenzano,ClaudiaFarías,Nahuel E.Schubart,Christoph D.eng2015-01-27T00:00:00Zoai:scielo:S0104-64972012000100003Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=0104-6497&lng=en&nrm=isohttps://old.scielo.br/oai/scielo-oai.php||editor.nauplius@gmail.com2358-29360104-6497opendoar:2015-01-27T00:00Nauplius - Sociedade Brasileira de Carcinologia (SBCA)false |
dc.title.none.fl_str_mv |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow |
title |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow |
spellingShingle |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow Laurenzano,Claudia COI Genetic homogeneity mtDNA sequence Rio de la Plata |
title_short |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow |
title_full |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow |
title_fullStr |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow |
title_full_unstemmed |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow |
title_sort |
Mitochondrial genetic structure of two populations of Uca urugayensis fails to reveal an impact of the Rio de la Plata on gene flow |
author |
Laurenzano,Claudia |
author_facet |
Laurenzano,Claudia Farías,Nahuel E. Schubart,Christoph D. |
author_role |
author |
author2 |
Farías,Nahuel E. Schubart,Christoph D. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Laurenzano,Claudia Farías,Nahuel E. Schubart,Christoph D. |
dc.subject.por.fl_str_mv |
COI Genetic homogeneity mtDNA sequence Rio de la Plata |
topic |
COI Genetic homogeneity mtDNA sequence Rio de la Plata |
description |
The Rio de la Plata. located between Uruguay and Argentina, generates a tremendous freshwater influx from the estuary into the coastal sea. It is thus suggested to constitute a biogeographic barrier for many taxa exhibiting a marine planktonic larval dispersal. However, evidence for corresponding intraspecific dispersal constraint has yet to be provided. We compared mitochondrial haplotypes of ten individuals for each of two populations of Uca (Leptuca) uruguayensis north and south of the estuary to examine the potential effect of the Rio de la Plata on the species' distribution. The populations are separated by nearly 2,000 km and were collected in São Paulo State (Brazil) and Mar Chiquita (Argentina). We found no significant indication for restricted gene flow between them, based on 823 basepairs of the mitochondrial cytochrome c oxidase subunit I gene. The structure of the corresponding haplotype network and the estimated nucleotide diversities, however, suggest that the Argentinean population is genetically more diverse than the one from Brazil. In order to establish possible significant differences in haplotype distribution, further research including more populations and larger sample sizes will be necessary. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-06-01 |
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=S0104-64972012000100003 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972012000100003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-64972012000100003 |
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 Carcinologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Carcinologia |
dc.source.none.fl_str_mv |
Nauplius v.20 n.1 2012 reponame:Nauplius instname:Sociedade Brasileira de Carcinologia (SBCA) instacron:SBCA |
instname_str |
Sociedade Brasileira de Carcinologia (SBCA) |
instacron_str |
SBCA |
institution |
SBCA |
reponame_str |
Nauplius |
collection |
Nauplius |
repository.name.fl_str_mv |
Nauplius - Sociedade Brasileira de Carcinologia (SBCA) |
repository.mail.fl_str_mv |
||editor.nauplius@gmail.com |
_version_ |
1752126581806989312 |