Artigo

Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation

Mitochondrial DNA-like sequences have been found in the nuclei of a variety of organisms. These nuclear pseudogenes can be used to estimate relative evolutionary rates of mitochondrial genes, and can be used as outgroups in phylogenetic analyses. In this study, mitochondrial sequences with pseudogen...

ver descrição completa

Autor principal: SOUZA, Marcelo Nazareno Vallinoto de
Outros Autores: SENA, Leonardo dos Santos, SAMPAIO, Maria Iracilda da Cunha, SCHNEIDER, Horacio, SCHNEIDER, Maria Paula Cruz
Grau: Artigo
Idioma: eng
Publicado em: 2011
Assuntos:
Filogenia
DNA mitocondrial
Saguinus
Acesso em linha: http://www.repositorio.ufpa.br:8080/jspui/handle/2011/2181
id ir-2011-2181
recordtype dspace
spelling ir-2011-21812018-02-06T15:58:40Z Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation SOUZA, Marcelo Nazareno Vallinoto de SENA, Leonardo dos Santos SAMPAIO, Maria Iracilda da Cunha SCHNEIDER, Horacio SCHNEIDER, Maria Paula Cruz Filogenia DNA mitocondrial Saguinus Mitochondrial DNA-like sequences have been found in the nuclei of a variety of organisms. These nuclear pseudogenes can be used to estimate relative evolutionary rates of mitochondrial genes, and can be used as outgroups in phylogenetic analyses. In this study, mitochondrial sequences with pseudogene-like characteristics, including deletions and/or insertions and stop codons, were found in tamarins (Saguinus spp., Callitrichinae, Primates). Phylogenetic analysis allowed estimation of the timing of the migration of these sequences to the nuclear genome, and also permitted inferences on the phylogeny of the genus. The choice of an inadequate outgroup (Aotus infulatus) prevented a good phylogenetic resolution of the subfamily Callitrichinae. The relatively ancient divergence of the Cebidae (Callitrichinae, Aotinae and Cebinae) may have favored confounding homoplasies. Seqüências tipo mitocondriais têm comumente sido encontradas no genoma nuclear de diversos organismos. Quando acidentalmente incluídas em estudos de seqüências mitocondriais, diversas conclusões errôneas podem ser obtidas. No entanto, estes pseudogenes nucleares tipo mitocondriais podem ser usados para a estimativa da taxa relativa de evolução de genes mitocondriais e também como grupo externo em análises filogenéticas. No presente trabalho, seqüências mitocondriais com características do tipo de pseudogene, tais como deleções e/ou inserções e códons de parada, foram encontradas em tamarins (Saguinus spp., Callitrichinae, Primates). A análise filogenética permitiu a estimativa do tempo da migração da seqüência mitocondrial para o genoma nuclear e algumas inferências filogenéticas. A escolha de um grupo externo não adequado (Aotus infulatus) não permitiu uma reconstrução filogenética confiável da subfamília Callitrichinae. A divergência bastante antiga de Cebidae (Callitrichinae, Aotinae e Cebinae) pode ter favorecido o aparecimento de homoplasias, obscurecendo a análise. 2011-05-12T14:53:46Z 2011-05-12T14:53:46Z 2000-03 Artigo de Periódico VALLINOTO, Marcelo et al. Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation. Genetics and Molecular Biology, São Paulo, v. 23, n. 1, p. 35-42, mar. 2000. Disponível em: <http://www.scielo.br/pdf/gmb/v23n1/2303.pdf>. Acesso em: 12 maio 2011. <http://dx.doi.org/10.1590/S1415-47572000000100006>. 1415-4757 http://www.repositorio.ufpa.br:8080/jspui/handle/2011/2181 eng Acesso Aberto application/pdf
institution Repositório Institucional - Universidade Federal do Pará
collection RI-UFPA
language eng
topic Filogenia
DNA mitocondrial
Saguinus
spellingShingle Filogenia
DNA mitocondrial
Saguinus
SOUZA, Marcelo Nazareno Vallinoto de
Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation
topic_facet Filogenia
DNA mitocondrial
Saguinus
description Mitochondrial DNA-like sequences have been found in the nuclei of a variety of organisms. These nuclear pseudogenes can be used to estimate relative evolutionary rates of mitochondrial genes, and can be used as outgroups in phylogenetic analyses. In this study, mitochondrial sequences with pseudogene-like characteristics, including deletions and/or insertions and stop codons, were found in tamarins (Saguinus spp., Callitrichinae, Primates). Phylogenetic analysis allowed estimation of the timing of the migration of these sequences to the nuclear genome, and also permitted inferences on the phylogeny of the genus. The choice of an inadequate outgroup (Aotus infulatus) prevented a good phylogenetic resolution of the subfamily Callitrichinae. The relatively ancient divergence of the Cebidae (Callitrichinae, Aotinae and Cebinae) may have favored confounding homoplasies.
format Artigo
author SOUZA, Marcelo Nazareno Vallinoto de
author2 SENA, Leonardo dos Santos
SAMPAIO, Maria Iracilda da Cunha
SCHNEIDER, Horacio
SCHNEIDER, Maria Paula Cruz
author2Str SENA, Leonardo dos Santos
SAMPAIO, Maria Iracilda da Cunha
SCHNEIDER, Horacio
SCHNEIDER, Maria Paula Cruz
title Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation
title_short Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation
title_full Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation
title_fullStr Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation
title_full_unstemmed Mitochondrial DNA-like sequence in the nuclear genome of Saguinus (Callitrichinae, Primates): transfer estimation
title_sort mitochondrial dna-like sequence in the nuclear genome of saguinus (callitrichinae, primates): transfer estimation
publishDate 2011
url http://www.repositorio.ufpa.br:8080/jspui/handle/2011/2181
_version_ 1787148458223730688
score 11.675088

Registros relacionados