P element-induced mutations in Drosophila melanogaster showing high interspecific crossability between D. melanogaster females and D. simulans males.
スポンサーリンク
概要
- 論文の詳細を見る
Homozygous stocks for the second or the third chromosome of Drosophila melanogaster with a single insertional plwB element were screened for high crossability with D. simulans. Reciprocal crosses between each of these stocks and D. simulans were made, and the insemination rate at two or three days was examined. From two cycles of screening of the original 575 stocks, one stock (# 687) which showed high insemination rate was selected and was backcrossed to a w strain to substitute the background. We obtained a stock which showed 10% insemination rate with D. simulans males (control was 0%). No stocks exhibiting a high crossability with D. simulans females were acquired. Revertant strains, from which the P element had been lost, were obtained from the backcrossed #687 stock. The insemination rates of 13 revertants to D. simulans males ranged from 1% to 33%. Seven of these 13 were not significantly different from the control line but were significantly different from the backcrossed #687 stock. It was concluded that the mutation showing high crossability with D. simulans males was caused by the P element transposition.
- 日本遺伝学会の論文
著者
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TOMARU Masatoshi
Institute of Biological Sciences, University of Tsukuba
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Oguma Yuzuru
Institute Of Biological Sciences University Of Tsukuba
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SAWA Masami
Department of Biology, Aichi University of Education
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NONAKA Maki
The Laboratory of Molecular Genetics, Tsukuba Life Science Center, The Institute of Physical and Chemical Research (RIKEN)
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MATSUBAYASH Hiroshi
Institute of Biological Sciences, University of Tsukuba
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