Characterization of a naturally occurring early-flowering rice mutant resulting from a novel variation in the Ghd7 locus

文献类型： 外文期刊

第一作者： Li, Wen

作者： Li, Wen;Zheng, Chongke;Zhou, Jinjun;Zhang, Zhizhen;Zhou, Guanhua;Xie, Xianzhi;Zhang, Zhizhen

作者机构：

关键词： bulked segregant analysis; flowering time; Ghd7; rice

期刊名称：CZECH JOURNAL OF GENETICS AND PLANT BREEDING （ 影响因子：0.865； 五年影响因子：1.017 ）

ISSN： 1212-1975

年卷期： 2021 年 57 卷 4 期

页码：

收录情况： SCI

摘要： Rice is one of the main staple food crops and is consumed by more than half of the global population. Opti-mizing the flowering time may help to maximize grain production. In this study, we characterized a rice mutant, Zixi-angnuo early-flowering mutant (ZXN-E). Compared with the wild-type variety, Zixiangnuo (ZXN), the mutant plants flowered earlier, were shorter and produced smaller panicles. Bulked segregant analysis revealed a 7-bp deletion in the first exon of the Grain number, plant height, and heading date 7 (Ghd7) locus. The allele with the 7-bp deletion was not detected in the rice varieties included in the 3 000 Rice Genomes Project. Thus, the 7-bp deletion identified in the naturally occurring mutant ZXN-E is a novel variation. Our findings suggest that ZXN-E may be a useful germplasm for breeding new rice varieties.

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[1]Characterization of a naturally occurring early-flowering rice mutant resulting from a novel variation in the Ghd7 locus. Li, Wen,Zheng, Chongke,Zhou, Jinjun,Zhang, Zhizhen,Zhou, Guanhua,Xie, Xianzhi,Zhang, Zhizhen. 2021

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