福建农林大学学报（自然科学版）2009，Vol.38Issue(5)：456-459,4.
小麦蓝粒基因通过雌雄配子传递差异的初步研究
Difference between male and female gametes in transmitting gene controlling the blue aleurone trait in wheat
黄碧光 1庄丽君1
作者信息
- 1. 福建农林大学作物科学学院,福建,福州,350002
- 折叠
摘要
Abstract
The character of blue-grain is a dominant genetic marker widely used in wheat genetics and breeding. Difference between male and female gametes in transmitting gene controlling the blue aleurone trait in wheat was determined in this study. Crosses between non-blue grain wheat varieties and blue-grain wheat varieties L and 03-chu-36 were carried to the F_2 generation. And the F_t of waxy-grain wheat C75 and blue-grain wheat L as male or female parent was test-crossed with waxy-grain wheat C75, and F_t generation was produced. Then the grain color of F_1 F_2 of these crosses was investigated. F_1 grain color of the crosses behaved medium blue or light blue. So blue grain is dominant. Grain color in F_2 segregated into blue and non-blue not in a ratio of 3: 1, but in a ratio of 11: 9, the blue grain number almost matched to the red grain number, and blue grain can be divided into dark blue, medium blue and light blue. The result of test cross showed that the transmission rate was 100% and 20% respectively for male and female gametes containing blue grain gene. This transmission rate just explained the ratio of 11: 9 of blue grain number and red grain number in F_2. The seeding of blue grain wheats was normal, showing the female gametes was normal and transmission rate was 100%. This corresponded to the results of the test cross. This paper also discussed the gene numbers controlling the blue grain.关键词
小麦/蓝粒/基因传递/雌雄配子Key words
wheat/ blue grain/ gene-transmission/ male and female gametes分类
农业科技引用本文复制引用
黄碧光,庄丽君..小麦蓝粒基因通过雌雄配子传递差异的初步研究[J].福建农林大学学报（自然科学版）,2009,38(5):456-459,4.
