The taxonomic and phylogenetic relationships of Trypanosoma vivax from South America and Africa

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorCortez, A. P.
dc.creatorVentura, R. M.
dc.creatorRodrigues, A. C.
dc.creatorBatista, J. S.
dc.creatorPaiva, F.
dc.creatorAñez, N.
dc.creatorMachado, R. Z.
dc.creatorGibson, W. C.
dc.creatorTeixeira, M. M G
dc.date2014-05-27T11:21:56Z
dc.date2016-10-25T18:22:30Z
dc.date2014-05-27T11:21:56Z
dc.date2016-10-25T18:22:30Z
dc.date2006-08-01
dc.date.accessioned2017-04-06T01:19:49Z
dc.date.available2017-04-06T01:19:49Z
dc.identifierParasitology, v. 133, n. 2, p. 159-169, 2006.
dc.identifier0031-1820
dc.identifier1469-8161
dc.identifierhttp://hdl.handle.net/11449/69016
dc.identifierhttp://acervodigital.unesp.br/handle/11449/69016
dc.identifier10.1017/S0031182006000254
dc.identifier2-s2.0-33746266245.pdf
dc.identifier2-s2.0-33746266245
dc.identifierhttp://dx.doi.org/10.1017/S0031182006000254
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/890314
dc.descriptionThe taxonomic and phylogenetic relationships of Trypanosoma vivax are controversial. It is generally suggested that South American, and East and West African isolates could be classified as subspecies or species allied to T. vivax. This is the first phylogenetic study to compare South American isolates (Brazil and Venezuela) with West/East African T. vivax isolates. Phylogeny using ribosomal sequences positioned all T. vivax isolates tightly together on the periphery of the clade containing all Salivarian trypanosomes. The same branching of isolates within T. vivax clade was observed in all inferred phylogenies using different data sets of sequences (SSU, SSU plus 5.8S or whole ITS rDNA). T. vivax from Brazil, Venezuela and West Africa (Nigeria) were closely related corroborating the West African origin of South American T. vivax, whereas a large genetic distance separated these isolates from the East African isolate (Kenya) analysed. Brazilian isolates from cattle asymptomatic or showing distinct pathology were highly homogeneous. This study did not disclose significant polymorphism to separate West African and South American isolates into different species/subspecies and indicate that the complexity of T. vivax in Africa and of the whole subgenus Trypanosoma (Duttonella) might be higher than previously believed. © 2006 Cambridge University Press.
dc.languageeng
dc.relationParasitology
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBrazil
dc.subjectEast Africa
dc.subjectEvolution
dc.subjectGenetic diversity
dc.subjectPhylogeny
dc.subjectRibosomal genes
dc.subjectSouth America
dc.subjectTaxonomy
dc.subjectTrypanosoma vivax
dc.subjectWest Africa
dc.subjectribosome DNA
dc.subjectAfrica
dc.subjectcladistics
dc.subjectcontrolled study
dc.subjectevolution
dc.subjectgenetic analysis
dc.subjectgenetic variability
dc.subjectgenus
dc.subjectgeographic distribution
dc.subjectKenya
dc.subjectnonhuman
dc.subjectparasite isolation
dc.subjectphylogeny
dc.subjectpriority journal
dc.subjectribosome
dc.subjectRNA sequence
dc.subjecttaxonomy
dc.subjectVenezuela
dc.subjectAnimals
dc.subjectBase Sequence
dc.subjectCattle
dc.subjectDNA, Protozoan
dc.subjectDNA, Ribosomal
dc.subjectGeography
dc.subjectMolecular Sequence Data
dc.subjectPolymerase Chain Reaction
dc.subjectPolymorphism, Genetic
dc.subjectSequence Alignment
dc.subjectSheep
dc.subjectBos taurus
dc.subjectDuttonella
dc.subjectTrypanosoma
dc.titleThe taxonomic and phylogenetic relationships of Trypanosoma vivax from South America and Africa
dc.typeOtro


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