二条オオムギ根端におけるX線誘発染色体異常の消失〔英文〕
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概要
- 論文の詳細を見る
Frequencies of chromosomal aberrations were examined during three successive cell generations in the root meristem of two-rowed barley following X-ray irradiation of 24-hr soaked seeds with a moderate exposure of 300R. Dicentric bridges and acentric fragments observed at anaphase and dicentrics, rings and chromosomes with obvious deletions detected at metaphase were scored. Frequencies of these chromosomal aberrations decreased rapidly with the progress of cell generation. Their rapid reduction in number, especially of the dicentric bridges which decreased much more rapidly than expected, indicates that elimination of the cells carrying aberrant chromosomes occurs in the meristematic cell population. The elimination seems to be attributable to the loss of reproductive integrity of the cells carrying such aberrations, probably as a result of the loss of chromosome segments.
- 日本遺伝学会の論文
著者
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Ikushima Takaji
Laboratory Of Molecular Genetics Biology Division Kyoto University Of Education
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Ichikawa Sadao
Laboratory Of Generics Department Of Regulation Biology Faculty Of Science Saitama University
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IKUSHIMA TAKAJI
Laboratory of Genetics, Faculty of Agriculture, Kyoto University
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生島 隆治
Laboratory of Genetics, Faculty of Agriculture, Kyoto University
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