In silico curation of QTL-rich clusters and candidate gene identification for plant height of bread wheat  

作　　者：Dengan Xu Chenfei Jia Xinru Lyu Tingzhi Yang Huimin Qin Yalin Wang Qianlin Hao Wenxing Liu Xuehuan Dai Jianbin Zeng Hongsheng Zhang Xianchun Xia Zhonghu He Shuanghe Cao Wujun Ma 

机构地区：[1]College of Agronomy,Qingdao Agricultural University,Qingdao 266109,Shandong,China [2]National Wheat Improvement Center,Institute of Crop Science,Chinese Academy of Agricultural Sciences,Beijing 100081,China

出　　处：《The Crop Journal》2023年第5期1480-1490,共11页作物学报（英文版）

基　　金：funded by the National Natural Science Foundation of China (32101733);Shandong Provincial Natural Science Foundation (ZR202103020229);the High-Level Talents Project of Qingdao Agricultural University (663/1122023);National Natural Science Foundation of China Regional Innovation and Development Joint Fund Project (U22A20457)。

摘　　要：Many genetic loci for wheat plant height(PH) have been reported, and 26 dwarfing genes have been catalogued. To identify major and stable genetic loci for PH, here we thoroughly summarized these functionally or genetic verified dwarfing loci from QTL linkage analysis and genome-wide association study published from 2003 to 2022. A total of 332 QTL, 270 GWAS loci and 83 genes for PH were integrated onto chromosomes according to their locations in the IWGSC RefSeq v2.1 and 65 QTL-rich clusters(QRC) were defined. Candidate genes in each QRC were predicted based on IWGSC Annotation v2.1 and the information on functional validation of homologous genes in other species. A total of 38 candidate genes were predicted for 65 QRC including three GA2ox genes in QRC-4B-IV, QRC-5A-VIII and QRC-6A-II(Rht24) as well as GA 20-oxidase 2(TaSD1-3A) in QRC-3A-IV. These outcomes lay concrete foundations for mapbased cloning of wheat dwarfing genes and application in breeding.

关 键 词：QTL-rich clusters Plant height Semi-dwarfism Reduced height genes Candidate genes 

分 类 号：S512.1[农业科学—作物学]