Autor(es): Moore D F

Resumo: In the Rabai District of Kenya 2 distinct forms of the mosquito Aedes aegypti are found: a domestic form, which breeds in the houses of villages, and a sylvan form, which breeds primarily in tree holes in forested regions. The dimorphism is maintained in spite of the sympatric distribution of the forms, which appears to provide ample opportunity for gene flow. The possibility that hybrid breakdown serves to isolate the forms was tested by setting up hybrid crosses and backcrosses to parental types. The hatchabilities of the eggs from these crosses were determined, and the offspring were examined for morphological defects. The possibility of assortative mating was tested in a laboratory mating preference experiment. Each form was bred to be homozygous for a different allele at the ldh-2 locus, which was assayed by gel electrophoresis. Virgin males and females of the 2 forms were placed together in a cage, and their mating preferences were determined by assaying 1 offspring of each female by electrophoresis. No hybrid breakdown or any deviation from random mating was detected. These data are consistent with the contention that Aedes aegypti is a single polytypic species

Imprenta: Journal of Medical Entomology, v. 16, n. 3, p. 223-226, 1979

Identificador do objeto digital: https://doi.org/10.1093/jmedent/16.3.223

Descritores: Aedes aegypti - Pathogenesis ; Aedes aegypti - Sexual ; Aedes aegypti - Public health

Data de publicação: 1979

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