Genomic analysis of hybrid rice varieties reveals numerous superior alleles that contribute to heterosis
文献类型: 外文期刊
作者: Huang, Xuehui 1 ; Yang, Shihua; Gong, Junyi; Zhao, Yan 1 ; Feng, Qi 1 ; Gong, Hao 1 ; Li, Wenjun 1 ; Zhan, Qilin 1 ; C 1 ;
作者机构: 1.Chinese Acad Sci, Collaborat Innovat Ctr Genet & Dev, Shanghai Inst Biol Sci, Inst Plant Physiol & Ecol,Natl Ctr Gene Res, Shanghai 200233, Peoples R China
2.Chinese Acad Sci, Collaborat Innovat Ctr Genet & Dev, Shanghai Inst Biol Sci, Inst
关键词: CYTOPLASMIC MALE-STERILITY;WIDE ASSOCIATION;UNRELATED INDIVIDUALS;RESISTANCE GENES;CULTIVATED RICE;FLOWERING TIME;GRAIN WIDTH;ARABIDOPSIS;YIELD;DOMINANCE
期刊名称:NATURE COMMUNICATIONS ( 影响因子:14.919; 五年影响因子:15.805 )
ISSN:
年卷期:
页码:
收录情况: SCI
摘要: Exploitation of heterosis is one of the most important applications of genetics in agriculture. However, the genetic mechanisms of heterosis are only partly understood, and a global view of heterosis from a representative number of hybrid combinations is lacking. Here we develop an integrated genomic approach to construct a genome map for 1,495 elite hybrid rice varieties and their inbred parental lines. We investigate 38 agronomic traits and identify 130 associated loci. In-depth analyses of the effects of heterozygous genotypes reveal that there are only a few loci with strong overdominance effects in hybrids, but a strong correlation is observed between the yield and the number of superior alleles. While most parental inbred lines have only a small number of superior alleles, high-yielding hybrid varieties have several. We conclude that the accumulation of numerous rare superior alleles with positive dominance is an important contributor to the heterotic phenomena.
- 相关文献
作者其他论文 更多>>
-
Fertilizer Effects on the Nitrogen Isotope Composition of Soil and Different Leaf Locations of Potted Camellia sinensis over a Growing Season
作者:Guo, Zuchuang;Huang, Tao;Guo, Zuchuang;Li, Chunlin;Shao, Shengzhi;Rogers, Karyne M.;Yuan, Yuwei;Li, Xin;Rogers, Karyne M.;Li, Qingsheng;Li, Da;Guo, Haowei
关键词:tea plants; Camellia sinensis; fertilizer; nitrogen isotopes; leaf locations; temporal variation
-
Deciphering the functional importance of comammox vs. canonical ammonia oxidisers in nitrification and N2O emissions in acidic agricultural soils
作者:Tan, Che;Zhang, Lei;Zeng, Yu;Chen, Hao;Gao, Zixiang;Peng, Hongyun;Li, Tingqiang;Liang, Yongchao;Yin, Chang;Gubry-Rangin, Cecile;Liang, Yongchao
关键词:Comammox Nitrospira; Nitrous oxide; 1-Octyne; 3,4-Dimethylpyrazole phosphate (DMPP); Acid soils
-
Antifungal profile and mechanism of bioinspired nanoscale magnesium against the agriculturally important pathogen Fusarium oxysporum f. sp. niveum
作者:Noman, Muhammad;Islam, Mohammad Shafiqul;Wang, Jing;Cai, Yingying;Hao, Zhongna;Zhang, Zhen;Wang, Yanli;Wang, Jiaoyu;Ahmed, Temoor;Islam, Mohammad Shafiqul;Li, Bin;Ahmed, Temoor;Ahmed, Temoor;Ahmad, Mudassar;Ali, Hayssam M.
关键词:
-
A novel rapid detection method for chicken adulteration based on recombinant polymerase amplification and multicomponent nuclease (MNAzyme)
作者:Ye, Huixing;Xu, Haoyi;Xu, Junfeng;Liang, Jingang;Huang, Tao;Wang, Xiaofu;Ye, Huixing;Xu, Haoyi;Huang, Tao;Liang, Jingang
关键词:Recombinase polymerase amplification (RPA); Multicomponent nuclease (MNAzyme); Chicken; Adulteration
-
Using process-oriented model output to enhance machine learning-based soil organic carbon prediction in space and time
作者:Zhang, Lei;Yang, Lin;Zhang, Lei;Heuvelink, Gerard B. M.;Mulder, Vera L.;Heuvelink, Gerard B. M.;Chen, Songchao;Deng, Xunfei;Yang, Lin
关键词:Hybrid modelling; Mechanistic knowledge-guided machine; learning; RothC; Random forest; Digital soil mapping; Soil carbon dynamics
-
Long-term addition of organic manure stimulates the growth and activity of comammox in a subtropical Inceptisol
作者:Zeng, Yu;Tan, Che;Zhang, Lei;Zheng, Wanning;Peng, Hongyun;Liang, Yongchao;You, Lelin;Chen, Hao;Wu, Chunyan
关键词:Comammox; Fertilizers; Nitrification activity; Nitrous oxide; Nitrification inhibitors
-
Regulation Mechanism and Potential Value of Active Substances in Spices in Alcohol-Liver-Intestine Axis Health
作者:Huang, Jianyu;Li, Jinjun;Huang, Jianyu;Huang, Tao
关键词:spice; active substance; hepatointestinal axis; alcohol