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〕
スポンサーリンク
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
-
Ikushima Takaji
Laboratory Of Molecular Genetics Biology Division Kyoto University Of Education
-
Ichikawa Sadao
Laboratory Of Generics Department Of Regulation Biology Faculty Of Science Saitama University
-
IKUSHIMA TAKAJI
Laboratory of Genetics, Faculty of Agriculture, Kyoto University
-
生島 隆治
Laboratory of Genetics, Faculty of Agriculture, Kyoto University
関連論文
- Nucleotide changes in mitochondrial 16S rRNA gene from different mammalian cell lines
- Novel point mutations in mitochondrial 16S rRNA gene of Chinese hamster cells
- Variation of spontaneous somatic mutation frequency in the stamen hairs of Tradescantia clone BNL 02
- 植物における放射線生物学的研究〔英文〕-4-
- ビキニ土壌で栽培したムラサキツユクサの雄蕊毛における体細胞突然変異頻度〔英文〕
- ムラサキツユクサの易変株および安定株の雄蘂毛における低線量ガンマ線による体細胞突然変異頓度の比較〔英文〕
- 易変性ムラサキツユクサKU20株の雄蘂毛における自然体細胞突然変異頻度の変動〔英文〕
- 低レベルのガンマ線を照射したムラサキツユクサKU7およびKU9株の雄蘂毛における体細胞突然変異率〔英文〕
- ムラサキツユクサ雄蕊毛における低線量域での体細胞突然変異率 低い突然変異倍加線量の検出〔英文〕
- ムラサキツユクサ雄蕊毛における低線量率低線量域での体細胞突然変異率〔英文〕