Dissecting a heterotic gene through GradedPool-Seq mapping informs a rice-improvement strategy
文献类型： 外文期刊
作者： Wang, Changsheng 1 ; Tang, Shican 1 ; Zhan, Qilin 1 ; Hou, Qingqing 1 ; Zhao, Yan 1 ; Zhao, Qiang 1 ; Feng, Qi 1 ; Zhou, 1 ;
作者机构： 1.Chinese Acad Sci, Shanghai Inst Biol Sci, Natl Ctr Gene Res, CAS Ctr Excellence Mol Plant Sci,Inst Plant Physi, Shanghai 200233, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Agr Sci, China Natl Rice Res Inst, State Key Lab Rice Biol, Hangzhou 310006, Zhejiang, Peoples R China
4.Fujian Acad Agr Sci, Rice Res Inst, Fuzhou 350018, Fujian, Peoples R China
5.Shanghai Normal Univ, Coll Life Sci, Shanghai 200234, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：14.919； 五年影响因子：15.805 ）
ISSN： 2041-1723
年卷期： 2019 年 10 卷
页码：
收录情况： SCI
摘要： Hybrid rice breeding for exploiting hybrid vigor, heterosis, has greatly increased grain yield. However, the heterosis-related genes associated with rice grain production remain largely unknown, partly because comprehensive mapping of heterosis-related traits is still labor-intensive and time-consuming. Here, we present a quantitative trait locus (QTL) mapping method, GradedPool-Seq, for rapidly mapping QTLs by whole-genome sequencing of gradedpool samples from F-2 progeny via bulked-segregant analysis. We implement this method and map-based cloning to dissect the heterotic QTL GW3p6 from the female line. We then generate the near isogenic line NIL-FH676::GW3p6 by introgressing the GW3p6 allele from the female line Guangzhan63-4S into the male inbred line Fuhui676. The NIL-FH676::GW3p6 exhibits grain yield highly increased compared to Fuhui676. This study demonstrates that it may be possible to achieve a high level of grain production in inbred rice lines without the need to construct hybrids.
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