Author： SAUL STEPHEN H. McCOMBS SUSAN D.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.86, Iss.2, 1993-03, pp. : 203-206
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Abstract
In this paper, we report on a stock of the Mediterranean fruit fly, Ceratitis capitata (Wiedemann), that has produced a significant excess of females for >3 yr of laboratory culture. Reciprocal crosses indicate that the basis of the female bias segregates with the males. In cerebral ganglion mitotic chromosomes, figures highly suggestive of a translocation involving three chromosomes were observed. Mitotic figures with chromosome bridges at anaphase suggest a model to explain the sex ratio distortion.
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