Chiasma analyses of the parasite flukes, Schistosoma and Paragonimus (Trematoda), by using the chiasma distribution graph.
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- Hirai Hirohisa
- Primate Research Institute, Kyoto University
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- Hirata Mizuki
- Department of Parasitology, Kurume University School of Medicine
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- Aoki Yoshiki
- Department of Parasitology, Institute for Tropical Medicine, Nagasaki University
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- Tanaka Manami
- Institute of Basic Medical Sciences, University of Tsukuba
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- Imai Hirotami T.
- National Institute of Genetics
書誌事項
- タイトル別名
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- Chiasma analyses of the parasite flukes
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抄録
Chiasma frequency and chiasma distribution pattern of three parasite flukes, Schistosoma mansoni (n=8), S. japonicum (n=8), and Paragonimus ohirai (n=11) were investigated by using the chiasma distribution graph. It was revealed that there is a minimum value of interference distance between two interstitial chiasmata in each bivalent (1.8% of the total bivalent length), but frequency distributions of interstitial chiasmata are random and almost uniform except the centromere and telomere regions in which chiasma formation is suppressed. As no chiasma terminalization was detected, the so-called terminal chiasma were best interpreted by an achiasmatic terminal association resulting from the telomerenuclear membrane association. The mean chiasma frequency per cell estimated from interstitial chiasmata is 15.3 in S. mansoni and P. ohirai, but very low (3.0) in S. japonicum. A genetic mechanism controlling the level of chiasma frequency was discussed with reference to the results in mammals.<br>
収録刊行物
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- Genes & Genetic Systems
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Genes & Genetic Systems 71 (3), 181-188, 1996
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詳細情報 詳細情報について
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- CRID
- 1390282680420548352
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- NII論文ID
- 10003759886
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- NII書誌ID
- AA11077421
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- ISSN
- 18805779
- 13417568
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- NDL書誌ID
- 4163720
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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