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Hybridization between Aedes simpsoni and Aedes woodi with observations on the genetic basis of morphological differences.

The public health importance of the genus Aedes makes it imperative that a better understanding of the genetic differences and isolating barriers between the species be developed. Aedes simpsoni and Aedes woodi from near Dar es Salaam, Tanzania, were used in this investigation. Analysis of F(1), F(2), and backcross progeny obtained from forced matings indicates that single factors form the genetic basis of some of the differences between the two species. There is evidence that Ae. simpsoni and Ae. woodi are separated by both premating and postmating reproductive isolating mechanisms.