Summary
The experiments reported in this paper deal with the maintenance of the non contagious, hereditary virus sigma in populations of its host,Drosophila melanogaster. Evidence was previously provided of the existence of two viral Types I and II, depending on their sensitivity to the ref(2) Pp allele (the ref(2) P locus interferes with the multiplication of the virus in the fly). The viral Type I which is the most sensitive to the ref(2) Pp allele, is eliminated in the presence of this allele, even when most of the flies were originally infected in the population. On the contrary, the presence of the ref(2) Pp allele does not prevent a viral Type II, introduced in a population, from infecting most of the flies. The possibility that a change has occurred recently in French natural populations ofDrosophila melanogaster is discussed.
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Fleuriet, A.: Presence of the hereditary Rhabdovirus sigma and polymorphism for a gene for resistance to this virus in natural populations ofDrosophila melanogaster. Evolution30, 735–739 (1976).
L'Heritier, Ph.: Drosophila viruses and their role as evolutionary factors. Evol. Biol.4, 185–209 (1970).
Rosen, L.: Transmisson transovarienne des arbovirus par les moustiques. Médecine tropicale41, 23–29 (1981).
Gay, P.: Les gènes de la Drosophile qui interviennent dans la multiplication du virus sigma. Mol. Gen. Genet.159, 269–283 (1978).
Fleuriet, A.: Polymorphism of the hereditary Rhabdovirus sigma in natural populations ofDrosophila melanogaster. Genetics95, 459–465 (1980).
Plus, N.: Etude de la multiplication du virus de la sensibilité au gaz carbonique chez la Drosophile. Bull. Biol. Fr. Belg.88, 1–46 (1954).
Fleuriet, A.: Répartition et fréquence du virus sigma dans des populations naturelles et expérimentales deDrosophila melanogaster. C. R. S. Soc. Biol.166, 598–601 (1972).
Fleuriet, A.: Reproduction in cage populations of a polymorphism regularly observed in the natural populations ofDrosophila melanogaster in France. Genetics88, 755–759 (1978).
Brun, G.: Etude d'une association du virus sigma et de son hote, la Drosophile: l'état stabilisé. Thèse, Orsay, 1963.
Fleuriet, A.: Transmission efficiency of the sigma virus in natural populations of its host,Drosophila melanogaster. Arch. Virol. (in press, 1982).
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Fleuriet, A. Factors affecting the frequency of infection by the sigma virus in experimental populations ofDrosophila melanogaster . Archives of Virology 73, 121–133 (1982). https://doi.org/10.1007/BF01314721
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DOI: https://doi.org/10.1007/BF01314721