玉米雄穗相关性状QTL分析  

QTL Analysis of Tassel Related Traits in Maize

作　　者：高晶 李海灵 田然 李新海[2] 王建军[3] 翁建峰[2] 王振华[1] GAO Jing;LI Hai-ling;TIAN Ran;LI Xin-hai;WANG Jian-jun;WENG Jian-feng;WANG Zhen-hua(Agricultural College,Northeast Agricultural University/Key Laboratory of Germplasm Enhancement and Physiology Ecology of Cold Area Food Crops,Ministry of Education,Harbin 150030;Institute of Crop Science,Chinese Academy of Agricultural Sciences/National Engineering Laboratory for Crop Molecular Breeding,Beijing 100081;Maize Research Institute,Shanxi Agricultural University,Jinzhong 030801,China)

机构地区：[1]东北农业大学农学院/教育部寒地粮食作物种质创新与生理生态重点实验室,哈尔滨150030 [2]中国农业科学院作物科学研究所/作物分子育种国家工程实验室,北京100081 [3]山西农业大学玉米研究所,山西晋中030801

出　　处：《玉米科学》2022年第2期35-41,50,共8页Journal of Maize Sciences

摘　　要：以掖478和齐319构建染色体片段代换系群体(CSSLs),分析石家庄、新乡、昌平、顺义4个地点的雄穗主轴长(TL)和雄穗分枝数(TBN)的表型鉴定数据。结果表明,在2个以上环境中共检测到27个雄穗主轴长QTL,分布在1、2、3、4、5、7、8、9和10号染色体上,其中,1号染色体上雄穗主轴长QTL位点最多;共检测到23个雄穗分枝数QTL,分别位于1、2、4、6、7、8和10号染色体,其中,1号染色体上雄穗分枝数QTL位点最多。验证了北方春玉米环境稳定的3个雄穗主轴长QTL和10个雄穗分枝数QTL,发掘到黄淮海环境特异的5个雄穗主轴长QTL和3个雄穗分枝数QTL。在4个环境下均能检测到5个雄穗主轴长QTL(qTL1-3、qTL1-4、qTL2-1、qTL3和qTL4-2)和1个雄穗分枝数QTL(qTBN1-7),可为控制雄穗主要性状的基因克隆和机理解析提供参考。Phenotypic identification of tassel length(TL)and tassel branch number(TBN)in Shijiazhuang,Xinx⁃iang,Changping and Shunyi was performed in the CSSLs constructed by Ye478 and Qi319.The results showed that in two or more environments,a total of 27 tassel length QTL were detected on chromosomes 1,2,3,4,5,7,8,9 and 10,and the number of tassel length QTL on chromosome 1 was the highest.23 QTL for tassel branch number were detected on chromosomes 1,2,4,6,7,8 and 10,respectively.A total of 23 QTL for tassel branch number were de⁃tected on chromosomes 1,2,4,6,7,8 and 10,and the most QTL were found on chromosome 1.3 QTL for tassel length and 10 QTL for tassel branch number in stable environment of northern spring maize were verified,and 5 QTL for tassel length and 3 QTL for tassel branch number specific to Huang-Huai-Hai environment were found.Five QTL for tassel length(qTL1-3,qTL1-4,qTL2-1,qTL3 and qTL4-2)and one QTL for tassel branch number(qTBN1-7)detected in all four environments could lay the foundation for gene cloning and mechanism analysis of tassel main traits.

关 键 词：玉米 雄穗主轴长 雄穗分枝数 QTL 

分 类 号：S513.035.3[农业科学—作物学]