Elite sd1 alleles in japonica rice and their breeding applications in northeast China

作     者：Hanjing Sha Hualong Liu Guangxin Zhao Zhongmin Han Huilin Chang Jingguo Wang Hongliang Zheng Jifeng Zhang Yang Yu Yuqiang Liu Detang Zou Shoujun Nie Jun Fang Hanjing Sha;Hualong Liu;Guangxin Zhao;Zhongmin Han;Huilin Chang;Jingguo Wang;Hongliang Zheng;Jifeng Zhang;Yang Yu;Yuqiang Liu;Detang Zou;Shoujun Nie;Jun Fang

作者机构：Key Laboratory of Soybean Molecular Design BreedingNortheast Institute of Geography and AgroecologyChinese Academy of SciencesHarbin 150081HeilongjiangChina Key Laboratory of Germplasm EnhancementPhysiology and Ecology of Food Crops in Cold RegionMinistry of EducationNortheast Agricultural UniversityHarbin 150030HeilongjiangChina Innovation CenterSuihua Branch of Heilongjiang Academy of Agricultural SciencesSuihua 152052HeilongjiangChina University of Chinese Academy of SciencesBeijing 100049China College of Life Science and EngineeringShenyang UniversityShenyang 110044LiaoningChina The Innovative Academy for Seed DesignChinese Academy of SciencesBeijing 100101China 

出 版 物：《The Crop Journal》 (作物学报（英文版）)

年 卷 期：2022年第10卷第1期

页      面：224-233页

核心收录：

学科分类：0710[理学-生物学] 09[农学] 0901[农学-作物学] 0902[农学-园艺学] 

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA24020301) Young Scientists Fund(CN)(31900423) Excellent Youth Foundation for Heilongjiang Scientific Committee(JC2017009) Cooperative Innovation Extension System of Rice Modern Agricultural Industrial Technology in Heilongjiang province 

主　　题：Semi-dwarf breeding Elite allele Pedigree analysis Geographic distribution Regional adaptability 

摘      要：The Green Revolution gene sd1 has been used extensively in modern rice breeding,especially in indica ***,elite sd1 alleles and related germplasm resources used for japonica rice breeding have not been identified,and extensive efforts are needed for japonica rice breeding to obtain new dwarfing *** from MBKbase-Rice revealed seven sd1 haplotypes in indica and four in japonica *** new sd1 alleles were identified in indica *** 295 japonica accessions from northeast Asia,except for the weak functional allele SD1-EQ,sd1-r was the major allele,reducing plant height in comparison with *** germplasm resources carrying reported sd1 alleles were identified by genotype searching and further verified by literature search,genealogical analysis,and d Caps *** and geographic distribution showed that sd1-r is an excellent allele widely used in northern China and Tohoku in Japan,and sd1-j is commonly used in east China and Kyushu in ***-and Xiushui-series cultivars carrying sd1-r and sd1-j,respectively,are essential branches of the backbone parents of Chinese japonica rice,Akihikari and Ce21,with the largest number of descendants and derived *** semi-dwarf japonica rice breeding,sd1-d was introgressed into Daohuaxiang 2(DHX2).Dwarf and semi-dwarf lines carrying sd1-d were selected and designated as 1279 and 1280,respectively,after withstanding typhoon-induced strong winds and heavy rains in 2020,and are anticipated to become useful intermediate materials for future genetic research and *** work will facilitate the introduction,parental selection,and marker-assisted breeding,and provide a material basis for the next step in identifying favorable genes that selected together with the sd1 alleles in japonica backbone parents.