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- Title
Inheritance of Aroma of Good-quality Indica Type Rice PTGMS Line GHS and Its Application in Hybrid Rice Breeding.
- Authors
Guoqiang GUO; Jianying YIN; Wuqiang GUO; Lianggui ZENG; Yiguo HUANG; Jing GAO; Xiaohu YANG; Mingqi GUO
- Abstract
The inheritance of aroma of GHS was studied by crossing GHS with non-aromatic lines 9311, Xianhui 207, Yuefengzhan, Taihuangzhan, Yuexiangzhan and aromatic lines Yuxiangyouzhan, Xiangwanxian 17, Tianlongxiang 103, Xinwanxiang and Chuangxiang 5. For the grains of Fi generation, the performance of aroma was tested by chewing method, while for the plants of generations of F1( F2 and BCi Fif the performance of aroma was tested by KOH solution method. The results showed that the non-aroma of restorer line is a dominant trait, but the aroma of GHS line is a recessive trait; the aroma genes of GHS, Yuexiangzhan and Xiangwanxian 17 were non-allelic; the aroma genes of GHS, Yuxiangyouzhan, Tianlongxiang 103, Xinwanxiang and Chuangxiang 5 may have the same allelic loci. Among the combinations of GHS and non-aromatic restorer lines, the non-aromatic to aromatic ratios of the F2 plants and the BCi Fi plants were 3:1 and 1:1, respectively, and the inheritance of aroma of GHS was controlled by a pair of recessive nuclear genes. In hybrid rice breeding, using GHS, Qiongxiang S has been bred out, and a series of aromatic hybrid rice combinations have also been selected. Among the hybrid combinations, Qiongxiangliangyou 1, Qiongxiangliangyou 2 and other high-yielding and high-quality combinations have been approved by provincial government, and they have good application prospects.
- Subjects
HYBRID rice; RICE yields; RICE planting rites; RICE breeding; PLANT genetic engineering
- Publication
Agricultural Science & Technology, 2015, Vol 16, Issue 6, p121
- ISSN
1009-4229
- Publication type
Article