ヌマムラサキツユクサおよびソラマメの根端細胞においてマイトマイシンCにより誘起された染色体切断の分布について〔英文〕

概要

論文の詳細を見る
1. The pattern and distribution of chromosome aberrations induced by mitomycin C were compared between Vicia faba which possesses heterochromatic regions and Tradescantia paludosa lacking visible heterochromatin in all the chromosomes, using meristematic cells of their roots.2. Mitomycin C produced chromatid-type aberrations in both Vicia and Tyadescantia. The frequency of aberrations was higher in Vicia than Tradescantia. The distribution of aberrations was found to be nonrandom with a marked excess of breaks in some heterochromatic regions of Sb-chromosomes in Vicia and at some segments of submetacentric chromosomes in Tradescantia.3. The mechanism of action of mitomycin C and the possible reasons for these localized effects were discussed.
日本遺伝学会の論文