贵农19号小麦新品种分子标记辅助选育及鉴定研究  

Molecular Marker-assisted Selection and Identification of Guinong 19,a New Wheat Variety

作　　者：任明见[1] 徐如宏[1] 

机构地区：[1]贵州大学农学院麦作研究中心,贵州贵阳550025

出　　处：《贵州农业科学》2009年第9期10-13,共4页Guizhou Agricultural Sciences

基　　金：贵州省小麦"十一五"攻关项目"小麦高产品种选育与资源利用创新研究"[黔科合NY字(2006)3002];贵州省农业动植物育种专项"贵农19号小麦良种繁育及高产保优栽培技术研究与示范"[黔农育专字(2007)03];贵州省科技成果重点推广计划项目"贵农19号高产优质小麦新品种大面积推广应用"[黔科合成字(2008)5022]

摘　　要：本研究将分子标记辅助选择技术与常规杂交育种方法结合,按照亲本选配原则组配杂交组合[中燕96-3(♀)×贵农21(♂)],采用系谱法结合分子标记选择技术对杂交后代进行处理与选择,快速培育出贵农006号小麦新品系,经过贵州省小麦区域试验和生产试验,于2007年9月通过贵州省农作物品种审定委员会审定,同时运用原位杂交、SCAR标记技术对其所含抗白粉病基因进行鉴定。结果表明,贵农19号小麦是一个6VS/6AL簇毛麦-普通小麦易位系,其抗白粉病基因为Pm21。育种实践表明,分子标记辅助选择是一项快速、准确、高效的育种新技术,既能加快育种进程,又可提高小麦育种成效。本研究培育的贵农19号小麦品种集高产、优质、抗病、矮秆、早熟于一体,现作为主栽品种在贵州生产上大面积推广应用。Guinong 19,a new wheat variety approved by Guizhou crops Variety Examination Committee in September,2007,was bred from the cross combination of Zhongyan 96-3(♀)× Guinong 21(♂) by the pedigree method and molecular marker-assisted selection technique.Its gene with powdery mildew resistance was identified by GISH and SCAR marker technique.The results showed that Guinong 19 is a 6VS/6AL translation line of Haynaldia/Common wheat and its gene with powdery mildew resistance is named as Pm21.The results from the breeding process of Guinong 19 indicates that the molecular marker-assisted selection is a new breeding technique with rapidity,accuracy and efficiency,which can not only accelerate wheat breeding process,but also enhance wheat breeding result.Guinong 19 with high yield,quality,disease resistance,dwarf type and early maturity is being popularized in wheat production in Guizhou.

关 键 词：小麦 新品种 分子标记辅助选择 原位杂交 簇毛麦 贵农19号 

分 类 号：S512.1[农业科学—作物学]