the distribution of the p-m system in drosophila melanogaster strains from the peoples republic of china出版社的分布系统黑腹果蝇菌株来自中华人民共和国.pdf

Original article The distribution of the P-M system in Drosophila melanogaster strains from the People’s Republic of China D Anxolabéhère K Hu2D Nouaud G Périquet3 1 Université Pierre et Marie Curie, mécanismes moléculaires de la spéciation, .j, Place Jussieu, 75005 Paris; University2of Hainan, Biology Center, 570001, Hainandao, People’s Repubdic of China; Faculté3des Sciences, institut de biocénotique expérimentale des agrosystèmes, Parc Grandmont, 37200 Tours, France (Received 20 June 1989; accepted 22 February 1990) Summary - An extensive survey of the D melanogaster populations collected during the period 1982-1987 in the People’s Republic of China was carried out with respect to the P - M system of hybrid dysgenesis. Geographical differentiation was found between the continental area where only the M’ type occurs, and the coastal areas, where the populations were characterized as weak P or Q types. All populations studied carried P and had a of the KP element P element deletion- sequences high frequency (aparticular derivative). The geographical differentiation of eastern Asian populations appears to be a mirror image of that of western Eurasian populations with the highest frequencies of P elements existing in the coastal areas. The causes of this geographical differentiation are discussed. Drosophila melanogaster / geographical distribution / mobile elements Résumé - Distribution des caractéristiques du système P - M de dysgénésie des hybrides dans des souches de Drosophila melanogaster collectées en République populaire de Chine. Nous présentons une analyse des caractéristiques génétiqu