RESUMO
Maternally inherited variants, which arose within a laboratory colony of Culex pipiens fatigans, have been studied by rearing cultures from single egg rafts. Segregation, i.e, variation of cytoplasmic incompatibility properties between the male progeny of individual females, was demonstrated. Also, from the daughters of individual females, sub-lines were derived within which all the males showed the same incompatibility or compatibility properties. Among the descendants of tetracycline-treated individuals were lines which superficially simulated these phenomena, but theses lines ultimately reverted to the cytoplasmic compatibility type of the strain which was submitted to the treatment. The types of variation s in cytoplasmic incompatibility properties that have been studied are discussed.
Assuntos
Culex/genética , Herança Extracromossômica/efeitos dos fármacos , Tetraciclina/farmacologia , Animais , Cruzamentos Genéticos , Culex/efeitos dos fármacos , Feminino , Humanos , Infertilidade , MasculinoAssuntos
Culex , Controle Biológico de Vetores , Seleção Genética , Fatores Etários , Animais , Feminino , MasculinoAssuntos
Culex/fisiologia , Controle de Mosquitos , Reprodução , Animais , Estudos de Avaliação como Assunto , Feminino , MasculinoAssuntos
Cruzamentos Genéticos , Culex/genética , Controle de Mosquitos , Polimorfismo Genético , Animais , Culex/citologia , Citoplasma , Feminino , MasculinoRESUMO
The cytoplasms of Paris and Delhi strains of Culex fatigans have been reported to be bi-directionally incompatible. However, in the present study it is shown that with increasing age males with Paris cytoplasm show an increasing degree of partial compatibility with Delhi females. A male history of previous mating seems a contributory effect in enhancing the degree of partial compatibility. The relevance of partial compatibility to genetic control of C. fatigans is discussed.
