Memórias do Instituto Oswaldo Cruz (Vol.87(3): 353-36 I, jul./sep. 1992) 


Cytogenetic as a tool for triatomine species distinction (Hemiptera-Reduviidae)

Ruben Pérez; Yanina Panzera; Sandra Scafiezzo; María Cristina Mazzella*; Francisco Panzera/+; Jean Pierre Dujardin** & Ekaterina Scvortzoff/+

+Sección Genética Evolutiva, Facultad de Ciencias, Montevideo, Uruguay

*Cátedra de Genética, Facultad de Agronomía, Montevideo, Uruguay

**Laboratoire de Génétique des Parasites et des Vecteurs, ORSTOM, Montpellier, France

Several cytogenetic traits were tested as species diagnostic characters on five triatomine species: Rhodnius pictipes, R. nasutus, R. robustus, Triatoma matogrossensis and T. pseudomaculata. Four of them are described for the first time. The detailed analysis of the meiotic process and the application of C-banding allowed us to identify seven cytogenetic characters which result useful to characterize and differentiate triatomine species.

Key words: cytogenetics - Triatoma - Rhodnius - holocentric chromosomes


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