MOLECULAR BREEDING OF FRAGRANT EARLY-SEASON HYBRID RICE USING THE BADH2 GENE

文献类型： 外文期刊

第一作者： Sheng, Zhonghua

作者： Sheng, Zhonghua;Fiaz, Sajid;Li, Qianlong;Chen, Wei;Wei, Xiangjin;Xie, Lihong;Jia, Guiai;Shao, Gaoneng;Tang, Shaoqing;Hu, Peisong;Li, Qianlong;Chen, Wei;Wang, Jianlong;Hu, Peisong

作者机构：

关键词： Fragrant rice; Early-season hybrid rice; Badh2-1; Marker-assisted selection; 2-acetyl-1-pyrroline

期刊名称：PAKISTAN JOURNAL OF BOTANY （ 影响因子：0.972； 五年影响因子：0.988 ）

ISSN： 0556-3321

年卷期： 2019 年 51 卷 6 期

页码：

收录情况： SCI

摘要： Fragrance is an important index of rice quality. Consumers value high-quality fragrant rice. In this study, Badh2-1, a new functional molecular marker of Badh2, was designed for marker-assisted selection (MAS) of fragrant rice containing high levels of 2-acetyl-1-pyrroline (2AP). Badh2-1 MAS was then used to breed fragrant early-season two-line male sterile rice lines YuS-1 and YuS-5, restorer lines R66-1, R66-7, R66-15 and fragrant early-season hybrid rice varieties Yuliangyou 120, Yuliangyou 125 and Yuliangyou 130. Each of these contains 2AP in the range 414-734 ppb (ug/kg) and the hybrids exhibit increased yield and relatively good rice quality. The breeding of fragrant early-season rice will improve the crop's organoleptic qualities, which will increase the price and thus the economic motivation for planting early-season rice, helping to improve the food security of China and other nations.

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