放射線處理에 依해 誘起된 토마토의 綠莖突然變異 關하여

Anthocyanin Mutants and their Genotypes of Tomato induced by Gamma Irradiation

토마토의 種子 및 生體에 감마線을 處理한 R₂世代에서 花靑素突然變異의 出現率을 調査하였으며, 出現한 花靑素突然變異體의 因子型을 判明하였다. 卽 花靑素突然變異의 出現率은 生體處理가 種子處理보다 效果的이며, 因子型은 어느程度 品種의 遺傳的 背景에 依해 支配되는 것 같으며, OTS 10號의 ai 因子의 遺傳子座는 放射線에 對한 感受性이 敏感하여 突然變異되기 쉬운것 같다.

The experiment was carried out to determine anthocyanin mutation frequency in γ-irradiated R₂generation of tomato seeds and young plants. And allele test was examined for anthocyanin mutants. Higher mutation frequencies were observed in irradiated young plants than dormant seeds. It was suggested that anthocyanin mutant’s genotypes varied with variety’s genetic backgrounds, and ai locus on Okitsu No. 10 was very sensitive to gamma ray.