Genetic Sexing in the Mediterranean Fruit Fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae): Conditional Lethal Translocations that Preferentially Eliminate Females

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Abstract
A group of four translocations identified by altered-linkage relationships is described in the Mediterranean fruit fly, Ceratitis capitata (Wiedemann). These translocations are between the Y chromosome and the autosome bearing the wild-type allele at the rosy eye locus. The four translocation lines are true breeding, producing 100% rosy females and wild-type-eye males with 0 to 3% sterile rosy males. When grown on medium containing purine (0.06%), the translocation lines produce 89 to 99% males. Methods of improving these lines for possible use in sterile-insect release (SIRM) programs are discussed.