蓖麻矮秆性状基因遗传规律研究  

Study on the Genetic Regularity of Castor Bean Dwarf Characters Gene

作　　者：李金琴[1] 朱国立[1] 何智彪[1] 张智勇[1] 贾娟霞[1] 乔文杰[1] 李靖霞[1] 

机构地区：[1]通辽市农业科学研究院,内蒙古钱家店028015

出　　处：《内蒙古农业科技》2010年第1期54-56,共3页Inner Mongolia Agricultural Science and Technology

基　　金：内蒙古自治区自然科学基金资助项目"蓖麻矮化性状基因的鉴定及其利用研究";内蒙古通辽市科技攻关项目"优质高产抗逆矮化蓖麻杂交种选育及其利用研究"支助

摘　　要：通过蓖麻矮秆与高秆不同遗传交配组合配制、种植,调查其后代株高性状分离的试验,研究了蓖麻高、矮秆性状主控基因遗传规律。结果表明,在其F1代群体中,株高性状没有发生分离,全表现为高秆性状;在其F2代群体中,表现为高秆和矮秆两种性状分离,而且植株高、矮秆性状的分离符合3∶1的分离比例;在回交一代群体中株高也全部发生高、矮性状的分离,且符合1∶1的分离比例。由此推断蓖麻植株高、矮这对性状是受1对等位基因所控制,高秆是受显性基因T所控制,而矮秆则是受隐性基因t所控制。Through different pairing groups of short castor gene and high castor,planting and researching plant height seperation test of their offspring,study the master gene heredity rule of castor high and short character.As a result,in F1 population,plant height doesn＇t separate,they are all of high character;in F2 populution shows two character separating,and character separation tally with 3：1,in BCF1 population high and short piant separation also happen,and tally with 1：1.Thus we infer that castor high and short character is controlled by one pair of allele gene,high plant is controlled by dominant gene T,and short plant is controlled by recessive genet.

关 键 词：蓖麻 矮秆性状 基因 遗传规律 

分 类 号：S565.5[农业科学—作物学]