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Climate and Environmental Changes and Their Potential Effects on the Dynamics of Chagas Disease: Hybridization in Rhodniini (Hemiptera, Triatominae).

Amanda RavaziJader de OliveiraFernanda Fernandez MadeiraGiovana Menezes NunesYago Visinho Dos ReisAna Beatriz Bortolozo de OliveiraLuísa Martins Sensato AzevedoCleber GalvãoMaria Tercília Vilela de Azeredo-OliveiraJoão Aristeu da RosaKaio Cesar Chaboli Alevi
Published in: Insects (2023)
Chagas disease affects about eight million people. In view of the issues related to the influence of anthropogenic changes in the dynamics of the distribution and reproductive interaction of triatomines, we performed experimental crosses between species of the Rhodniini tribe in order to evaluate interspecific reproductive interactions and hybrid production capacity. Reciprocal crossing experiments were conducted among Rhodnius brethesi × R. pictipes , R. colombiensis × R. ecuadoriensis , R. neivai × R. prolixus , R. robustus × R. prolixus , R. montenegrensis × R. marabaensis ; R. montenegrensis × R. robustus, R. prolixus × R. nasutus and R. neglectus × R. milesi . With the exception of crosses between R. pictipes ♀ × R. brethesi ♂, R. ecuadoriensis ♀ × R. colombiensis ♂ and R. prolixus ♀ × R. neivai ♂, all experimental crosses resulted in hybrids. Our results demonstrate that both allopatric and sympatric species produce hybrids, which can generate concern for public health agencies in the face of current anthropogenic events. Thus, we demonstrate that species of the Rhodniini tribe are capable of producing hybrids under laboratory conditions. These results are of great epidemiological importance and raise an important discussion about the influence of climatic and environmental interactions on Chagas disease dynamics.
Keyphrases
  • public health
  • human health
  • genetic diversity
  • climate change
  • single molecule
  • risk assessment
  • label free