Chromosomal localization of 18S rDNA and telomere sequence in the aye-aye, Daubentonia madagascariensis
スポンサーリンク
概要
- 論文の詳細を見る
Chromosomal localization of 18S rDNA and telomere sequence was attempted on the chromosomes of the aye-aye (2n = 30) using fluorescence in situ hybridization (FISH) and primed in situ labeling (PRINS), respectively. The rDNA was localized at the tip or whole of the short arm of acrocentric chromosomes 13 and 14 in all spreads observed. However, post-FISH silver-nitrate (Ag) staining showed that transcriptional activity of the rRNA genes was variable, particularly in chromosome 14, which was most frequently negative in one homologue carrying the smaller copy number of rDNA. This observation supports, at the molecular cytogenetic level, previous data concerning the relationship between the copy number of rDNA and its trancriptional activity. On the other hand, telomere sequence was localized only at the telomeric region of all chromosomes, the so-called telomere-only pattern, a characteristic similar to that of the greater bushbaby. These data may provide information on the chromosomal evolution of the lemur, because locations of rDNA and telomere sequences frequently offer important clues in reconstruction of karyotype differentiation.
- 日本遺伝学会の論文
著者
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KAWAMOTO Yoshi
Primate Research Institute, Kyoto University
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川本 芳
京都大学霊長類研究所
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Kawamoto Y
Kyoto Univ. Aichi Jpn
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Kawamoto Y
Population Genetics Section Primate Research Institute Kyoto University
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Hirai Hirohisa
Primate Research Institute, Kyoto University
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KAWAMOTO YOSHI
Kyoto University
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Go Yasuhiro
The Graduate University For Advanced Studies
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Koyama Naoki
The Center For African Area Studies Kyoto University
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Koyama N
Kyoto University
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Hirai Hirohisa
Primate Research Institute Kyoto University
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Hirai Hirohisa
Molecular Biology Section Department Of Cellular And Molecular Biology Primate Research Institute Ky
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Hirai Hirohisa
Department Of Population Genetics Primate Research Institute Kyoto University
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Hirai Hirohisa
Department Of Cellular And Molecular Biology Primate Research Institute Kyoto University
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Hirai Hirohisa
Prime Res. Ins. Kyoto Univ.
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Hirohisa Hirai
Primate Research Institute Kyoto University
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Hirai Hirohisa
Kyoto University
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Kawamoto Y
Primate Research Institute Kyoto University
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Kawamoto Yoshi
Kyoto Univ. Inuyama Jpn
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Kawamoto Yoshi
Primate Research Institute Kyoto University
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Kawamoto Yoshi
Population Genetics Section Primate Research Institute Kyoto University
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Yoshi Kawamoto
Primate Research Institute Kyoto University
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Hirai H
Primate Research Institute Kyoto University
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Hirai Yuriko
Primate Research Institute Kyoto University
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RAKOTOARISOA Gilbert
Primate Research Institute, Kyoto University
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SHIMA Taizo
Aye-aye Conservation Project, Japan Aye-aye fund
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RANDRIANJAFY Albert
Parc Botanique et Zoologique de Tsimbazaza
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MORA Roger
Ivoloina Zoological Park
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GO Yasuhiro
Primate Research Institute, Kyoto University
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Rakotoarisoa Gilbert
Primate Research Institute Kyoto University
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Shima Taizo
Aye-aye Conservation Project Japan International Cooperation Agency
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