Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Allozyme variation in natural populations of Lymantria dispar (Lepidoptera) | Génét. Sél. Evol. 1984 16 1 1-14 Allozyme variation in natural populations of Lymantria dispar Lepidoptera Caroline GEORGE Laboratoire d Evolution des Etres organises 105 boulevard Raspail F 75006 Paris Summary Populations of Lymantria dispar collected in France Morocco Canada and China are surveyed for allozyme variability in four enzymes EST AcPH A AT and LAP . Over ten observed loci the average heterozygosity is low H . In the same forest egg-mass progenies collected from different host-trees show differences in allele frequencies. Nei s standard genetic distances are calculated between populations. The distance is small D between the French and Canadian samples confirming the French origin of the Canadian populations. By contrast the genetic distance is large between France and Morocco D raising a question of the taxonomic and ecological differences between these populations. Key words Enzymatic polymorphism geographical variation Lepidoptera Lymantria dispar. Resume Variations allozymiques dans des populations naturelies de Lymantria dispar Lepidoptera Les populations de Lymantria dispar proviennent de France du Maroc du Canada et de Chine. Leur variabilité allozymique est étudiée sur quatre enzymes EST PhAC AAT et LAP . Sur les dix locus observes rhétérogénéité moyenne est faible H 0 09 . Dans la même íorêt les descendants des pontes récoltées sur des arbres d especes differentes montrent des écarts. La distance génétique standard de Nei est calculee entre les populations. Elie est faible entre les échantillons íranẹais et canadien D 0 03 confirmant Forigine franeaise du peuplement canadien. Tandis que la distance génétique entre la France et le Maroc est grande D 0 37 posant la question des differences taxonomiques et écologiques entre ces deux peuplements. Mots clés Polymorphisme enzymatique variation géographique Lépidoptère Lyman-tria dispar. 2 c. GEORGE I. Introduction The gypsy moth Lymantria dispar is found in temperate areas extending .
