Crossing experiments detect genetic incompatibility among populations of Triatoma brasiliensis Neiva, 1911 (Heteroptera, Reduviidae, Triatominae).
Triatoma brasiliensis is composed of at least four geographic populations (brasiliensis, melanica, macromelasoma, and juazeiro) that have distinct chromatic, morphologic, biologic and ecologic patterns, and genetic composition. Reciprocal crosses between all pairwise combinations were carried out in order to evaluate the genetic and reproductive compatibility of these four populations. The F1 individuals developed normally and the resulting adults were crossed again to test the F2 and F3 viability. Genetic incompatibility was found between melanica and brasiliensis populations.
Costa
Jane
J
Coleção Entomológica, Departamento de Entomologia, Instituto Oswaldo Cruz-Fiocruz, Rio de Janeiro, RJ, Brasil. jcosta@gene.dbbm,fiocruz.br
Almeida
Carlos Eduardo
CE
Dujardin
Jean Pierre
JP
Beard
Charles Benjamin
CB
D000818:Animals; D005260:Female; D014644:Genetic Variation / Q000235:genetics*; D008297:Male; D012098:Reproduction / Q000235:genetics; D013045:Species Specificity; D014225:Triatominae / Q000145:classification / Q000235:genetics*