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Molecular trees of trypanosomes incongruent with fossil records of hosts
Kerr, Sara F.
  • Kerr, Sara F; University of the Incarnate Word. Department of Biology. San Antonio. US
Mem. Inst. Oswaldo Cruz ; 101(1): 25-30, Feb. 2006.
Artículo en Inglés | LILACS | ID: lil-423563
RESUMO
Molecular trees of trypanosomes have confirmed conventionally accepted genera, but often produce topologies that are incongruent with knowledge of the evolution, systematics, and biogeography of hosts and vectors. These distorted topologies result largely from incorrect assumptions about molecular clocks. A host-based phylogenetic tree could serve as a broad outline against which the reasonability of molecular phylogenies could be evaluated. The host-based tree of trypanosomes presented here supports the " invertebrate first " hypothesis of trypansosome evolution, supports the monophyly of Trypanosomatidae, and indicates the digenetic lifestyle arose three times. An area cladogram of Leishmania supports origination in the Palaearctic during the Palaeocene.
Asunto(s)
Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Filogenia / Trypanosoma / Evolución Molecular / Fósiles Límite: Animales Idioma: Inglés Revista: Mem. Inst. Oswaldo Cruz Asunto de la revista: Medicina Tropical / Parasitología Año: 2006 Tipo del documento: Artículo País de afiliación: Estados Unidos Institución/País de afiliación: University of the Incarnate Word/US

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Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Filogenia / Trypanosoma / Evolución Molecular / Fósiles Límite: Animales Idioma: Inglés Revista: Mem. Inst. Oswaldo Cruz Asunto de la revista: Medicina Tropical / Parasitología Año: 2006 Tipo del documento: Artículo País de afiliación: Estados Unidos Institución/País de afiliación: University of the Incarnate Word/US