The research activities of the group are directed to the genetic study of triatomines (Hemiptera-Reduviidae) by means of cytogenetic, isoenzymatic and molecular markers.
The specific topics are summarized in the following items, as well as papers, references and summaries. You can also see the chromosome numbers of the species studied up to now.
RESOLUTION OF TAXONOMIC PROBLEMS
- Group infestans: Triatoma infestans, T. platensis & T. delpontei.
-Group sordida : Triatoma sordida, T. guasayana & T. patagonica.
-Complex phyllosoma: Triatoma longipennis, T. mazzottii, T. pallidipennis, T. phyllosoma & T. picturata. Panzera et al. 1994. XI Cong. Latinoamer. Genética. Puerto Vallarta, México. p. 330.
-Complex Rhodnius: Rhodnius prolixus, R. robustus, R. nasutus & R.
Pérez et al. 1992.
NATURAL POPULATION ANALYSIS
-Triatoma infestans (Uruguay). Panzera et al. 1992.
-Triatoma sordida. Panzera et al. 1997.
Schofield et al. 1998.
-Mepraia spinolai (alary variants).
The investigation is being carried out in collaboration with Dr. Lileia Diotaiuti (Centro de Pesquisas Renée Rachou, Belo Horizonte, Brazil).
-Panstrongylus megistus (wild and domestic).
The investigation is being carried out in collaboration with Dr. Chris Schofield (financed by the European Communities´ Commissions) and Dr. L. Diotaiuti (CPQRR, Brazil).
-Triatoma brasiliensis (colour and design variants).
The investigación is being carried out in collaboration with ECLAT network.
-Triatoma dimidiata (colour and design variants).
DISPERSAL OF Triatoma infestans
The investigation is being carried out in collaboration with Dr. Jean Pierre Dujardin (ORSTOM-IBBA, Bolivia), Dr. Lileia Diotaiuti (CPQRR-Brazil) and Dr. Hernán Bermúdez (Bolivia).
-Migration routes between countries.
-Estimation of dispersal between neighbor localities.
FILOGENETIC RELATIONSHIPS AMONG CLOSELY RELATED ESPECIES
- Group infestans: Panzera et al. 1995.
- Group sordida: Panzera et al. 1997.
The investigation is being carried out in collaboration with several groups:
- Complex phyllosoma.
STRUCTURE AND BEHAVIOUR OF HOLOCENTRICS CHROMOSOMES
Investigation carried out in collaboration with Dr. Julio Sánchez Rufas (UAM-Madrid-Spain).
- Analisys of chromosome segregation during meiosis.