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báo cáo khoa học: "The effect of crosses made in Tribolium castaneum between lines selected for high and low responsiveness to conditioned medium"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: The effect of crosses made in Tribolium castaneum between lines selected for high and low responsiveness to conditioned medium | Génét. Sél. Evol. 1984 16 1 121-126 Note The effect on egg laying of crosses made in TriboHum castaneum between lines selected for high and low responsiveness to conditioned medium Batia LAVIE u. RITTE and R. MOAV Department of Genetics The Hebrew University of Jerusalem 91904 Jerusalem Israel Summary Tribolium castaneum lines selected for high HR and low LR responsiveness of egg production to the conditioning of the medium were employed in crosses designed to determine the direction of dominance for responsiveness. In all three populations the cross between HR females with LR males yielded responsiveness values as high or even higher than the HR line indicating dominance for high responsiveness. The values of responsiveness encountered for the reciprocal crosses ranging from lower than the LR line to higher than the HR line suggest that more than one major gene is accounting for variation in responsiveness and that maternal effect may also be involved. Key words Tribolium castaneum egg production conditioned medium. Resume Incidence sur la ponte de Tribolium castaneum du croisement entre lignées sélectionnées pour des sensibỉlités de réponse forte et faible à un milieu degrade Des lignées de Tribolium castaneum sélectionnées sur la ponte pour une sensibilité de réponse haute HR et basse LR à un milieu degrade ont été croisées pour étudier la dominance de Cette caractéristique. Dans les 3 populations étudiệes le croisement entre femelles HR et males LR procure une sensibilité de réponse supérieure OU égale à Celle observée dans la lignée HR indiquant par-là la dominance d une forte sensibilité de réponse. Les valeurs de sensibilité enregistrées sur les croisements réciproques qui se situent Present Address Institute of Evolution Haifa University 31999 Haifa Israel. 122 B. LA VIE u. RITTE R. MOAV en dessous de celle de la lignée LR OU au-dessus de HR laissent à penser que plus d un gene majeur se trouve impliqué dans le déterminisme de la sensibilité et que des .