文献类型： 外文期刊
作者： Yang, Xinghai 1 ; Pan, Yinghua 1 ; Xia, Xiuzhong 1 ; Qing, Dongjin 1 ; Chen, Weiwei 1 ; Nong, Baoxuan 1 ; Zhang, Zongqiong 1 ; Zhou, Weiyong 1 ; Li, Jingcheng 1 ; Li, Danting 1 ; Dai, Gaoxing 1 ; Deng, Guofu 1 ;
作者机构： 1.Guangxi Acad Agr Sci, Rice Res Inst, Guangxi Key Lab Rice Genet & Breeding, Nanning 530007, Guangxi, Peoples R China
2.Guangxi Acad Agr Sci, Guangxi Key Lab Rice Genet & Breeding, Rice Res Inst, Dept Inst, 174 East Daxue Rd, Nanning 530007, Guangxi, Peoples R China
关键词： Rice; Grain quality; Genome-wide association study; Superior alleles; Genetic improvement
期刊名称：GENOMICS （ 影响因子：4.4； 五年影响因子：4.2 ）
ISSN： 0888-7543
年卷期： 2023 年 115 卷 6 期
页码：
收录情况： SCI
摘要： Grain qualities including milling quality, appearance quality, eating and cooking quality, and nutritional quality are important indicators in rice breeding. Significant achievements in genetic improvement of rice quality have been made. In this study, we analyzed the variation patterns of 16 traits in 1570 rice varieties and found sig-nificant improvements in appearance quality and eating and cooking quality, particularly in hybrid rice. Through genome-wide association study and allelic functional nucleotide polymorphisms analysis of quality trait genes, we found that ALK, FGR1, FLO7, GL7/GW7, GLW7, GS2, GS3, ONAC129, OsGRF8, POW1, WCR1, and Wx were associated with the genetic improvement of rice quality traits in Southern China. Allelic functional nucleotide polymorphisms analysis of 13 important rice quality genes, including fragrance gene fgr, were performed using the polymerase chain reaction amplification refractory mutation system technology. The results showed that Gui516, Gui569, Gui721, Ryousi, Rsimiao, Rbasi, and Yuehui9802 possessed multiple superior alleles. This study elucidates the phenotypic changes and molecular basis of key quality traits of varieties in Southern China. The findings will provide guidance for genetic improvement of rice quality and the development of new varieties.
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