Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae)
Autor(a) principal: | |
---|---|
Data de Publicação: | 2009 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Iheringia. Série Zoologia |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000400006 |
Resumo: | A new molecular phylogeny for akodontine rodents from Brazil was proposed. The phylogenetic tree was enriched with the area of occurrence and with information on the karyotype of the samples. Based on this enriched tree, and with a described methodology, hypotheses were proposed on the karyotype and area of occurrence of the ancestors of each Clade. Thus it was possible to discuss hypotheses on chromosome evolution of the group, and on dispersion events from the "area of original differentiation" of akodontines in the Andes. Chromosome evolution started with high diploid numbers (2n=52) and showed a tendency to reduction (until 2n=14 in more recent clades). Independent side-branches of the tree showed 2n reduction and in one case the 2n increased. At least four dispersion events from the Andes down to South-eastern Brazil were proposed. The results should suggest the direction of new studies on comparative karyology. |
id |
FZBRS-2_996ccefda3d5a7b0eab438ca40bcb830 |
---|---|
oai_identifier_str |
oai:scielo:S0073-47212009000400006 |
network_acronym_str |
FZBRS-2 |
network_name_str |
Iheringia. Série Zoologia |
repository_id_str |
|
spelling |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae)Brazilian akodontineschromosome evolutionbiogeographymolecular phylogenyA new molecular phylogeny for akodontine rodents from Brazil was proposed. The phylogenetic tree was enriched with the area of occurrence and with information on the karyotype of the samples. Based on this enriched tree, and with a described methodology, hypotheses were proposed on the karyotype and area of occurrence of the ancestors of each Clade. Thus it was possible to discuss hypotheses on chromosome evolution of the group, and on dispersion events from the "area of original differentiation" of akodontines in the Andes. Chromosome evolution started with high diploid numbers (2n=52) and showed a tendency to reduction (until 2n=14 in more recent clades). Independent side-branches of the tree showed 2n reduction and in one case the 2n increased. At least four dispersion events from the Andes down to South-eastern Brazil were proposed. The results should suggest the direction of new studies on comparative karyology.Museu de Ciências Naturais2009-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000400006Iheringia. Série Zoologia v.99 n.4 2009reponame:Iheringia. Série Zoologiainstname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)instacron:FZB/RS10.1590/S0073-47212009000400006info:eu-repo/semantics/openAccessBarros,Maria ClaudeneSampaio,IracildaSchneider,HoracioLangguth,Alfredoeng2010-06-01T00:00:00Zoai:scielo:S0073-47212009000400006Revistahttp://www.scielo.br/iszPUBhttps://old.scielo.br/oai/scielo-oai.php||iheringia-zoo@fzb.rs.gov.br1678-47660073-4721opendoar:2010-06-01T00:00Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)false |
dc.title.none.fl_str_mv |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) |
title |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) |
spellingShingle |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) Barros,Maria Claudene Brazilian akodontines chromosome evolution biogeography molecular phylogeny |
title_short |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) |
title_full |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) |
title_fullStr |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) |
title_full_unstemmed |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) |
title_sort |
Molecular phylogenies, chromosomes and dispersion in Brazilian akodontines (Rodentia, Sigmodontinae) |
author |
Barros,Maria Claudene |
author_facet |
Barros,Maria Claudene Sampaio,Iracilda Schneider,Horacio Langguth,Alfredo |
author_role |
author |
author2 |
Sampaio,Iracilda Schneider,Horacio Langguth,Alfredo |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Barros,Maria Claudene Sampaio,Iracilda Schneider,Horacio Langguth,Alfredo |
dc.subject.por.fl_str_mv |
Brazilian akodontines chromosome evolution biogeography molecular phylogeny |
topic |
Brazilian akodontines chromosome evolution biogeography molecular phylogeny |
description |
A new molecular phylogeny for akodontine rodents from Brazil was proposed. The phylogenetic tree was enriched with the area of occurrence and with information on the karyotype of the samples. Based on this enriched tree, and with a described methodology, hypotheses were proposed on the karyotype and area of occurrence of the ancestors of each Clade. Thus it was possible to discuss hypotheses on chromosome evolution of the group, and on dispersion events from the "area of original differentiation" of akodontines in the Andes. Chromosome evolution started with high diploid numbers (2n=52) and showed a tendency to reduction (until 2n=14 in more recent clades). Independent side-branches of the tree showed 2n reduction and in one case the 2n increased. At least four dispersion events from the Andes down to South-eastern Brazil were proposed. The results should suggest the direction of new studies on comparative karyology. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-12-01 |
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=S0073-47212009000400006 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212009000400006 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0073-47212009000400006 |
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 |
Museu de Ciências Naturais |
publisher.none.fl_str_mv |
Museu de Ciências Naturais |
dc.source.none.fl_str_mv |
Iheringia. Série Zoologia v.99 n.4 2009 reponame:Iheringia. Série Zoologia instname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) instacron:FZB/RS |
instname_str |
Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) |
instacron_str |
FZB/RS |
institution |
FZB/RS |
reponame_str |
Iheringia. Série Zoologia |
collection |
Iheringia. Série Zoologia |
repository.name.fl_str_mv |
Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS) |
repository.mail.fl_str_mv |
||iheringia-zoo@fzb.rs.gov.br |
_version_ |
1754203963378368512 |