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KMID : 0378019810240020118
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New Medical Journal
1981 Volume.24 No. 2 p.118 ~ p.122
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Studies on the Deleterious Genes Isolated from second Chromosomes in the Ulsan and Anyang Natural Populations of Drosophila melanogaster
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Abstract
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The frequency of second chromosomes bearing deleterious genes in the Ulsan and Anyang natural populations of Drosophila melanogaster was estimated by using of C,./Pm method.
1. ´´The frequency of lethal genes was,24.39% for the Ulsan and 25.3%,for the Anyang populations, and the data was similar from 1974 to 1978. The frequency of semilethal genes was 22.1% for the Ulsan and 15.95% for the Anyang populations from 1974 to 1978. As a rule, the data for the Ulsan population was ;higher than those -of Anyang. The frequency of lethal and semilethal genes was 46.5% for the Ulsan and 41.23% for the Anyang populations from 1974 to 1978. As a rule, the data for the Ulsan population was higher than those of Anyang.
2. The frequency of all homozygote viabilities in second chromosomes was 16.4% for the Ulsan and 16.8% for the Anyang population from 1974 to 1978. The frequency of homozygotes with the exception of lethal viabilities of second chromosomes was 21.6°0 for the Ulsan and 22. 1% for the Anyang populations from 1974 to 1978. Also, there was no difference between the data collected on the two populations.
3. The low frequency of lethal genes in Korean populations of Drosophila melanogaster from 1974 to 1978 were detected; and it was said to be smaller in size compared to American and Japanese populations.
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KEYWORD
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