Bargues M.D., Marcilla A., Ramsey J.M., Dujardin Jean-Pierre, Schofield C.J., Mas-Coma S. (2000). Nuclear rDNA-based molecular clock of the evolution of Triatominae (Hemiptera : Reduviidae), vectors of Chagas disease. Memorias do Instituto Oswaldo Cruz, 95 (4), p. 567-573. ISSN 0074-0276.
Titre du document
Nuclear rDNA-based molecular clock of the evolution of Triatominae (Hemiptera : Reduviidae), vectors of Chagas disease
Année de publication
2000
Type de document
Article
Auteurs
Bargues M.D., Marcilla A., Ramsey J.M., Dujardin Jean-Pierre, Schofield C.J., Mas-Coma S.
Source
Memorias do Instituto Oswaldo Cruz, 2000,
95 (4), p. 567-573 ISSN 0074-0276
The evolutionary history and times of divergence of triatomine bug lineages are estimated from molecular clocks inferred from nucleotide sequences of the small subunit SSU (18S) and the second internal transcribed spacer (ITS-2) of the nuclear ribosomal DNA of these reduviids. The 18S rDNA molecular clock rate in Triatominae, and Prosorrhynchan Hemiptera in general, appears to be of 1.8% per 100 million years (my). The ITS-2 molecular clock rate in Triatominae is estimated to be around 0.4-1% per 1 my, indicating that ITS-2 evolves 23-55 times faster than 18S rDNA. Inferred chronological data about the evolution of Triatominae fit well with current hypotheses on their evolutionary histories, but suggest reconsideration of the current taxonomy of North America species complexes. (Résumé d'auteur)
Plan de classement
Glossines, réduviides et trypanosomiases [052GLOTRY]
