Genomic organization and chromosomal distribution of rat ID elements
スポンサーリンク
概要
- 論文の詳細を見る
Identifier (ID) elements are members of a family of short interspersed nuclear elements (SINEs) in rodents. We investigated the genomic organization and chromosomal distribution of the ID elements in the rat, mouse and Chinese hamster. Southern blot hybridization analysis revealed that the ID elements are widespread in the rat genome, but concentrated in the mouse and Chinese hamster genomes, and that the copy of ID elements in the rat is about 5 times and 50 times that in the mouse and Chinese hamster, respectively. FISH analysis showed that the ID elements are predominantly distributed in the R-band regions of rat chromosomes. In mouse and Chinese hamster chromosomes, no specific distribution pattern of the ID elements was found. Furthermore, we found a distinct group of derivative ID elements in the rat, which contain partially repeated ID core domains, by PCR amplification using an ID core sequence. Such derivatives were not found in either the mouse or Chinese hamster. These findings suggest that explosive amplification of the ID elements in the rat has been accompanied by the occurrence of derivative ID elements and a predominant localization to the R-band regions. Similar associations found in the Alu family, one of the human SINEs, allow us to speculate that the rat ID elements and the human Alu family have analogous functions in chromosomal organization.
- 日本遺伝学会の論文
著者
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SONTA Shin-ichi
Department of Genetics, Institute for Developmental Research
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Sonta S
Aichi Prefectural Colony Aichi Jpn
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Sonta Shin-ichi
Dept. Genet. Inst. Develop. Res. Aichi Hum. Serv. Ctr.
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Sonta S
Aichi Prefectural Colony For The Mentally And Physically Handicapped Kasugai Jpn
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Sonta Shin-ichi
Department Of Genetics Institute For Developmental Research Aichi Human Service Center
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Sonta Shin-ichi
Institute For Developmental Research Aichi Prefectural Colony
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Kondoh Yasumitsu
AISIN COSMOS R & D CO., LTD.
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Kagiyama Naoto
AISIN SEIKI CO., LTD.
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Sonta Shin-ichi
Department Of Genetics Institute For Developmental Research
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Kagiyama Naoto
Aisin Cosmos R & D Co. Ltd
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Yoshida Michihiro.c.
Chromosome Research Unit Faculty Of Science Laboratory Of Cytogenetics Division Of Biological Scienc
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ONO Takao
Laboratory of Cytogenetics, Division of Bioscience, Graduate School of Environmental Earth Sciences
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C. YOSHIDA
Chromosome Research Unit, Faculty of Science, Hokkaido University
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Kondoh Yasumitsu
Aisin Cosmos R & D Co. Ltd
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Ono Takao
Laboratory Of Cytogenetics Division Of Bioscience Graduate School Of Environmental Earth Sciences
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Yoshida Michihiro
Laboratory Of Cytogenetics Graduate School Of Environmental Earth Science Hokkaido University:chromo
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Yoshida C.
Chromosome Research Unit Faculty Of Science Hokkaido University And Division Of Bioscience Graduate
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Yoshida -c.
Chromosome Research Unit Faculty Of Science And Division Of Biological Science Graduate School Of En
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Yoshida C.
Chromosome Research Unit Faculty Of Science Graduate School Of Environmental Earth Science Hokkaido
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Yoshida Michihiro
Chromosome Research Unit Hokkaido University
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Yoshida Michihiro
Chromosome Reserch Unit Hokkaido University
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C. Yoshida
Chromosome Research Unit Faculty Of Science Hokkaido University
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Yoshida Michihiro
Chromosome Research Unit Faculty Of Science Laboratory Of Cytogenetics Division Of Biological Scienc
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