小麦赤銹病抵抗性の給源としての複二倍体の作出に関する研究 : 第3報 Triticum Timopheevi ZHUK. × Aegilops longissima SCHW. et MUSCH.より得たるF_1並びに複二倍体の細胞遺伝学的研究

概要

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In this experiment the writers tried to synthesize 6x-anlphidiploids by the artificial hybridization between T. Timopheevi ZHUK. and Aegilops lolegissima SCHW. et MUSCH. , with an aim ta combine the leaf-rust resistant genes that were possessed separately by these two species into a single one, and to make this new wheat to be a good source of resistarce to leaf-rust in wheats. By applying 0.05 % colchicine solution to the F_1 seeds 247 mature arrlphidiploids were obtained successfully. In the root-tip cells of F_1 plants, 21 somatic chromosomes were confirmed, which correspond to the sum of reduced numbers of their parents, and in those of amphidiploids 42 chromosomes were clearly counted corresponding to the multiple number of chromosomes of F_1 plants.
日本育種学会の論文
1956-08-31