Hybrid dysgenesis in natural populations ofDrosophila melanogaster in Japan |
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| Authors: | E. T. Matsuura S. Takada H. Kato S. Niizeki S. I. Chigusa |
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| Affiliation: | (1) Department of Biology, Ochanomizu University, 112 Bunkyo-ku, Tokyo, Japan;(2) Present address: Department of Gene Research, Cancer Institute, 170 Toshima-ku, Tokyo, Japan |
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| Abstract: | The P-M system of hybrid dysgenesis inDrosophila melanogaster was investigated on the basis of gonadal dysgenesis, using 1,590 strains from 28 natural populations in Japan, and 20 populations from Southeast Asia, the Pacific area and Africa. Strong P strains were found sporadically in several populations in Japan. Few strong M strains were observed. Q strains were present at a high frequency in most populations. Thus, most populations in these areas were regarded as Q populations. The distribution of the P element and the evolution of P, Q and M populations are also discussed. |
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| Keywords: | Drosophila melanogaster hybrid dysgenesis natural population P element |
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