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- YAMAGUCHI Osamu
- Department of Biology, Hyogo University of Teacher Education
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- YAMAZAKI Tsuneyuki
- Department of Biology, Faculty of Science, Kyushu University
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- SAIGO Kaoru
- Department of Biochemistry, Faculty of Medicine, Kyushu University
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- MUKAI Terumi
- Department of Biology, Faculty of Science, Kyushu University
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- ROBERTSON Alan
- Institute of Animal Genetics, University of Edinburgh
書誌事項
- タイトル別名
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- Distributions of three transposable elements, P, 297, and copia, in natural populations of Drosophila melanogaster.
- キイロショウジョウバエ シゼンシュウダン ニ ミラレル カドウ イデン ヨウソ
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抄録
Two Japanese natural populations and a Canary Island cage population of Drosophila melanogaster were analyzed with respect to three transposable elements P, 297, and copia, using chromosomal in situ hybridization, copia was distributed more or less equally over all chromosomes. Its copy number on the X chromosome was slightly less than that on autosomes of equivalent size, possibly indicating the near neutrality or slightly deleteriousness of the transposable element actually present in the chromosomes. The distribution of P elements was a little different from that of the other two transposable elements, as it was not concentrated around chromocenter, in contrast to that of 297 and copia. No evidence of threshold was observed with respect to the copy number of transposable elements in a genome in any of the three transposable elements. The variance of copy number of these transposons between different strains were generally larger than those expected under the poisson distribution, especially in the P element. These observations possibly indicate near neutrality of these transposable elements (in their present positions) with respect to natural selection or non-equilibrium state in populations.
収録刊行物
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- 遺伝学雑誌
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遺伝学雑誌 62 (3), 205-216, 1987
日本遺伝学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001205445299968
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- NII論文ID
- 130000060723
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- NII書誌ID
- AA00690924
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- ISSN
- 18805787
- 0021504X
- http://id.crossref.org/issn/0021504X
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- NDL書誌ID
- 3158572
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可