Identification and application of major quantitative trait loci for panicle length in rice (Oryza sativa) through single-segment substitution lines
文献类型： 外文期刊
作者： Wang, Xiaoling 1 ; Liu, Guifu 2 ; Wang, Zhiquan 1 ; Chen, Songliang 2 ; Xiao, Yulong 1 ; Yu, Chuanyuan 1 ;
作者机构： 1.Jiangxi Acad Agr Sci, Rice Res Inst, Natl Engn Lab Rice Nanchang, Nanchang, Jiangxi, Peoples R China
2.South China Agr Univ, Guangdong Prov Key Lab Plant Mol Breeding, Guangzhou, Guangdong, Peoples R China
关键词： panicle length (PL); quantitative trait locus (QTL); single-segment substitution line (SSSL)
期刊名称：PLANT BREEDING （ 影响因子：1.832； 五年影响因子：1.956 ）
ISSN： 0179-9541
年卷期： 2019 年 138 卷 3 期
页码：
收录情况： SCI
摘要： Panicle length (PL), an important yield-related trait, strongly affects yield components, such as grain number, grain density and rice quality. More than 200 panicle length quantitative trait loci (PL QTLs) are identified, but only a small number are applied in rice breeding. In this study, we performed QTL analysis for PL using 42 single-segment substitution lines (SSSLs) derived from nine donors in the genetic background of HJX74. Fourteen QTLs and five heterosis QTLs (HQTLs) for PL were recognised. Three QTLs and four HQTLs acted positively, and the other eleven QTLs and one HQTL acted negatively. By scanning the single heterozygous background region of the F-2 population with large-genetic-effect SSSLs, we mapped PL loci qPL6-2 and qPL7-1 to different locations on chromosomes 6 and 7, respectively, in three consecutive years of independent trials. The genetic effects of these QTLs were further assessed. qPL6-2 demonstrated the most positive additive effect (QTL), whereas qPL7-1 achieved the most positive dominant effect (HQTL) for PL. These results indicated that the pyramiding of PL QTLs might increase grain yield and facilitate the application of the beneficial allele in hybrid rice breeding.
- 相关文献
作者其他论文 更多>>
-
Identification, Fine Mapping and Application of Quantitative Trait Loci for Grain Shape Using Single-Segment Substitution Lines in Rice (Oryza sativa L.)
作者：Wang, Xiaoling;Li, Xia;Luo, Xin;Tang, Shusheng;Wu, Ting;Wang, Zhiquan;Peng, Zhiqin;Yu, Chuanyuan;Xiao, Yulong;Wang, Xiaoling;Wang, Xiaoling;Xia, Qiyu
关键词：rice; grain shape; quantitative trait locus (QTL); single-segment substitution line (SSSL)
-
Dynamic analysis of QTLs on plant height with single segment substitution lines in rice
作者：Fu, Yu;Zhao, Hongyuan;Huang, Jiongkai;Zhu, Haitao;Luan, Xin;Bu, Suhong;Liu, Zupei;Liu, Guifu;Zhang, Guiquan;Wang, Shaokui;Wang, Xiaoling;Peng, Zhiqin;Meng, Lijun
关键词：
-
From Green Super Rice to green agriculture: Reaping the promise of functional genomics research
作者：Yu, Sibin;Peng, Shaobing;Zhang, Chaopu;Xiao, Jinghua;Zhang, Qifa;Ali, Jauhar;Zhou, Shaochuan;Ren, Guangjun;Xie, Huaan;Xu, Jianlong;Li, Zhikang;Yu, Xinqiao;Luo, Lijun;Zhou, Fasong;Zheng, Ruifeng;Ma, Liangyong;Yuan, Dingyang;Li, Zefu;Chen, Dazhou;Zhao, Zhigang;Chu, Chengcai;Liu, Guifu;You, Aiqing;Wei, Yu;Zhu, Susong;Gu, Qiongyao;He, Guangcun;Li, Shigui;Liu, Changhua;Li, Zhikang;Zhou, Fasong
关键词：rice; functional genomics; Green Super Rice; genomic breeding; nutritious crops; sustainable agriculture
-
Combination of Genomics, Transcriptomics Identifies Candidate Loci Related to Cold Tolerance in Dongxiang Wild Rice
作者：Wang, Dianwen;Xiao, Yulong;Chen, Hongping;Huang, Cheng;Chen, Ping;Chen, Dazhou;Deng, Wei;Wang, Jilin
关键词：Dongxiang wild rice; seedling cold tolerance; quantitative trait locus; transcriptomics; differentially expressed genes
-
Fine mapping of a heading date QTL, Se16(t), under extremely long day conditions in rice
作者：Mao, Fangming;Wang, Zhiquan;Zheng, Yiyun;Tang, Shusheng;Luo, Xin;Xiong, Tao;Yan, Song
关键词：Rice Se16(t); Heading date; Critical day length; Light intensity; Extremely long day conditions
-
QTL epistatic analysis for yield components with single-segment substitution lines in rice
作者：Wang, Xiaoling;Zhu, Haitao;Wang, Shaokui;Zhang, Guiquan;Liu, Guifu;Wang, Xiaoling;Jin, Lingling
关键词：epistasis; quantitative trait loci; rice; single-segment substitution line; yield components
-
Genetic dissection of top three leaf traits in rice using progenies from a japonicaxindica cross
作者：Li, Huihui;Ma, Juan;Wan, Jianmin;Wang, Jiankang;Yin, Changbin;Li, Huihui;Ma, Juan;Wan, Jianmin;Wang, Jiankang;Zhao, Zhigang;Wang, Zhiquan;Liu, Shijia;Chen, Liangming;Liu, Xi;Tian, Yunlu;Xu, Lidong;Wang, Zhiquan;Zhang, Dashuang;Zhu, Susong;Li, Danting
关键词：
