ソテツ染色体における仁形成部と動原体の分染とin situハイブリダイゼ-ション〔英文〕
スポンサーリンク
概要
- 論文の詳細を見る
Nucleolar organizers (NORs) and centromeres in the somatic metaphase chromosomes (2n = 22) of Cycas revoluta Thunb. were differentially stained by silver staining and Cd-staining. Silver deposits (Ag-NORs) were located at the terminal end of the long arm of four submetacentric chromosomes and nine telocentric chromosomes. The maximum number of nucleoli per nucleus was 13. In situ hybridization with biotin-labeled rDNA revealed that rRNA genes were located at the terminal ends of four submetacentric chromosomes and all 12 telocentric chromosomes. Most of the signals of rDNA coincided to Ag-NORs. Differential staining with the DNA base specific fluorochromes indicated that the NORs were GC-rich and the centromeres were AT-rich. The proximal and terminal regions of the telocentric chromosomes were GC-rich. A few interstitial GC- and AT-rich bands were observed in some chromosomes.
- 日本遺伝学会の論文
- 1992-10-25
著者
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近藤 勝彦
Laboratory of Plant Chromosome and Gene Stock, Faculty of Science, Hiroshima University
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Kondo Katsuhiko
Laboratory Of Plant Chromosome And Gene Stock Faculty Of Science Hiroshima University
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Hizume Masahiro
Biological Inst. Fac. Of Education Ehime Univ.
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ISHIDA Fumio
Biological Institete, Faculty of Education, Ehime University
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Ishida F
Biological Institute Faculty Of Education Ehime University
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Ishida Fumio
Biological Institete Faculty Of Education Ehime University
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日詰 雅博
Biological Institute, Faculty of Education, Ehime University
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石田 文生
Biological Institute, Faculty of Education, Ehime University
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