Isogenic Lines을 利用한 小麥品種의 春播性遺伝子 分析 第Ⅱ報 春播型交配母体에 對한 春播性遺伝子 究明

Genetic Analysis of Spring Growth Habit in Wheat (Triticum aestivum L.) Using Isogenic Lines Ⅱ. Identification of the Genes for Vernalization to the Spring Wheat as Germ Plasm Sources for Early Maturity

This experiment was carried out to identify the gene for the vernalization (Vrn) using isogenic tester lines with Vrn 1, Vrn 2, Vrn 3 and Vrn 4, respectively, in the spring wheat cultivars, which are being used in breeding program for early maturity. Pavon 76 and Bb-cal were appeared to share Vrn 3 gene, and also each appeared to carry an unidentified dominant gene, respectively. K 15 was found to carry another gene. Newly identified Vrn genes from Pavon 76, Bb-cal and K15 in this study are certainly different from those hitherto identified i,e, Vrn 1, Vrn 2, Vrn 3 and Vrn 4. Detailed further study is required to know whether these genes are identical or not. Both Tesia 79 and Imuris 79 seemed to carry two dominant Vrn genes even though further study is required.