Using Heading date 1 preponderant alleles from indica cultivars to breed high-yield, high-quality japonica rice varieties for cultivation in south China

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dc.creatorLeng, Yujia
dc.creatorGao, Yihong
dc.creatorChen, Long
dc.creatorYang, Yaolong
dc.creatorHuang, Lichao
dc.creatorDai, Liping
dc.creatorRen, Deyong
dc.creatorXu, Qiankun
dc.creatorZhang, Ya
dc.creatorPonce, Kimberly
dc.creatorHu, Jiang
dc.creatorShen, Lan
dc.creatorZhang, Guangheng
dc.creatorChen, Guang
dc.creatorDong, Guojun
dc.creatorGao, Zhenyu
dc.creatorGuo, Longbiao
dc.creatorYe, Guoyou
dc.creatorQian, Qian
dc.creatorZhu, Li
dc.creatorZeng, Dali
dc.date2020-01
dc.date2024-12-19T12:54:09Z
dc.date2024-12-19T12:54:09Z
dc.date.accessioned2026-06-27T04:14:09Z
dc.descriptionHeading date 1 (Hd1) is an important gene for the regulation of flowering in rice, but its variation in major cultivated rice varieties, and the effect of this variation on yield and quality, remains unknown. In this study, we selected 123 major rice varieties cultivated in China from 1936 to 2009 to analyse the relationship between the Hd1 alleles and yield‐related traits. Among these varieties, 19 haplotypes were detected in Hd1, including two major haplotypes (H8 and H13) in the japonica group and three major haplotypes (H14, H15 and H16) in the indica group. Analysis of allele frequencies showed that the secondary branch number was the major aimed for Chinese indica breeding. In the five major haplotypes, SNP316(C‐T) was the only difference between the two major japonica haplotypes, and SNP495(C‐G) and SNP614(G‐A) are the major SNPs in the three indica haplotypes. Association analysis showed that H16 is the most preponderant allele in modern cultivated Chinese indica varieties. Backcrossing this allele into the japonica variety Chunjiang06 improved yield without decreasing grain quality. Therefore, our analysis offers a new strategy for utilizing these preponderant alleles to improve yield and quality of japonica varieties for cultivation in the southern areas of China.
dc.identifierhttps://hdl.handle.net/10568/164668
dc.identifier.urihttp://hdl.handle.net/123456789/26052
dc.languageen
dc.publisherWiley
dc.rightsOpen Access
dc.sourceLeng, Yujia; Gao, Yihong; Chen, Long; Yang, Yaolong; Huang, Lichao; Dai, Liping; Ren, Deyong; Xu, Qiankun; Zhang, Ya; Ponce, Kimberly; Hu, Jiang; Shen, Lan; Zhang, Guangheng; Chen, Guang; Dong, Guojun; Gao, Zhenyu; Guo, Longbiao; Ye, Guoyou; Qian, Qian; Zhu, Li and Zeng, Dali. 2020. Using Heading date 1 preponderant alleles from indica cultivars to breed high-yield, high-quality japonica rice varieties for cultivation in south China . Plant Biotechnology Journal, Volume 18 no. 1 p. 119-128
dc.subjectagronomy
dc.subjectcrop science
dc.subjectbiotechnology
dc.subjectplant science
dc.titleUsing Heading date 1 preponderant alleles from indica cultivars to breed high-yield, high-quality japonica rice varieties for cultivation in south China
dc.typeJournal Article

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