荔枝株高、干周和童期的QTL分析  

QTL analysis of plant height,trunk girth and juvenile stage in litchi

作　　者：赵玉辉[1,2] 郭印山[2] 黄穗生[1] 傅嘉欣[1] 胡桂兵[1] 张永福[1] 胡又厘[1] 刘成明[1] 

机构地区：[1]华南农业大学园艺学院,广州510642 [2]沈阳农业大学园艺学院,沈阳110866

出　　处：《果树学报》2011年第3期526-530,共5页Journal of Fruit Science

基　　金：国家自然科学基金项目(30270922;30771498);国家自然科学基金国际(地区)合作交流项目(30510103125);国家支撑计划子课题(2006BAD01A1705);中国博士后科学基金项目(20070410837);广东省国际合作项目(2009B050300004);广东省科技计划项目(项目编号2009B020200010);华南农业大学国际合作交流基金项目(2007K055);现代农业产业技术体系建设专项(nycytx-32)

摘　　要：以马贵荔×焦核三月红76株F1代群体为试材,调查了株高、干周和童期3个生长性状的分离情况。结果表明,3个性状表现为连续分布,具有数量性状的典型特征,利用已构建的分子遗传连锁图谱进行数量性状位点(QTL)分析,检测到与3个生长性状连锁的QTL位点45个,其中控制株高的QTL 1个,控制干周的QTL 5个,控制童期的QTL 39个,各QTL的LOD值在3.02～11.24,可解释35.3%～95.2%的表型变异。Using 76 individuals derived from F1 population of cross combination between Maguili and Jiaohesanyuehong,the separation condition of plant height,trunk girth and juvenile stage in litchi were evaluated.The results showed the three characteristics performed continuous distribution,and had the typical feature of quantitative character.Based on the constructed genetic linkage map,the QTLS for growth traits in litchi was also analyzed in this study,45 QTLs were detected,among them 1 QTL was for plant height,and 5 for trunk girth,and 39 QTLS for juvenile stage.Phenotypic variation could be explained by each QTL ranged from 35.3% to 95.2%,and its LOD value was within 3.02 to 11.24.

关 键 词：荔枝 株高 干周 童期 QTL分析 

分 类 号：S667.1[农业科学—果树学]