Please use this identifier to cite or link to this item: https://repositorio.ufpa.br/jspui/handle/2011/2230
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dc.creatorBARROS, Maria Claudene-
dc.creatorSAMPAIO, Maria Iracilda da Cunha-
dc.creatorSCHNEIDER, Horacio-
dc.date.accessioned2011-05-31T18:29:08Z-
dc.date.available2011-05-31T18:29:08Z-
dc.date.issued2003-
dc.identifier.citationBARROS, Maria Claudene; SAMPAIO, Iracilda; SCHNEIDER, Horacio. Phylogenetic analysis of 16S mitochondrial DNA data in sloths and anteaters. Genetics and Molecular Biology, São Paulo, v. 26, n. 1, p. 5-11, 2003. Disponível em: <http://www.scielo.br/pdf/gmb/v26n1/a02v26n1.pdf>. Acesso em: 15 mar. 2011. doi: <10.1590/S1415-47572003000100002>.pt_BR
dc.identifier.issn1415-4757-
dc.identifier.urihttp://www.repositorio.ufpa.br:8080/jspui/handle/2011/2230-
dc.description.abstractWe sequenced part of the 16S rRNA mitochondrial gene in 17 extant taxa of Pilosa (sloths and anteaters) and used these sequences along with GenBank sequences of both extant and extinct sloths to perform phylogenetic analysis based on parsimony, maximum-likelihood and Bayesian methods. By increasing the taxa density for anteaters and sloths we were able to clarify some points of the Pilosa phylogenetic tree. Our mitochondrial 16S results show Bradypodidae as a monophyletic and robustly supported clade in all the analysis. However, the Pleistocene fossil Mylodon darwinii does not group significantly to either Bradypodidae or Megalonychidae which indicates that trichotomy best represents the relationship between the families Mylodontidae, Bradypodidae and Megalonychidae. Divergence times also allowed us to discuss the taxonomic status of Cyclopes and the three species of three-toed sloths, Bradypus tridactylus, Bradypus variegatus and Bradypus torquatus. In the Bradypodidae the split between Bradypus torquatus and the proto-Bradypus tridactylus / B. variegatus was estimated as about 7.7 million years ago (MYA), while in the Myrmecophagidae the first offshoot was Cyclopes at about 31.8 MYA followed by the split between Myrmecophaga and Tamandua at 12.9 MYA. We estimate the split between sloths and anteaters to have occurred at about 37 MYA.pt_BR
dc.description.provenanceSubmitted by Albirene Sousa (albirene@ufpa.br) on 2011-05-31T18:29:08Z No. of bitstreams: 2 MariaClaudene-HoracioSchneider.PDF: 347858 bytes, checksum: 72e5a93b19089d1f8cc3e93a28227c05 (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5)en
dc.description.provenanceMade available in DSpace on 2011-05-31T18:29:08Z (GMT). No. of bitstreams: 2 MariaClaudene-HoracioSchneider.PDF: 347858 bytes, checksum: 72e5a93b19089d1f8cc3e93a28227c05 (MD5) license_rdf: 23422 bytes, checksum: b145eda3d84bdc4f56b389c0ab98d368 (MD5) Previous issue date: 2003en
dc.language.isoengpt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectPreguiça (Zoologia)pt_BR
dc.subjectTamanduápt_BR
dc.subjectFilogenia molecularpt_BR
dc.subjectDNA mitocondrialpt_BR
dc.titlePhylogenetic analysis of 16S mitochondrial DNA data in sloths and anteaterspt_BR
dc.typeArtigo de Periódicopt_BR
Appears in Collections:Artigos Científicos - FBIO/IECOS

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