摘要
为薏苡分类、驯化和遗传改良提供理论依据,选取4份薏苡材料为双亲构建4个杂交组合,采用目测统计和χ^2检验方法分析不同杂交组合F1、F2代的总苞质地性状及其遗传规律。结果表明:薏苡总苞质地珐琅质相对于甲壳质为显性,F2群体植株总苞质地性状珐琅质与甲壳质的分离比为3∶1。说明,珐琅质总苞由1对等位基因控制,属于单基因显性遗传,可作为薏苡遗传改良的标记性状。
In order to provide theoretical basis for classification,domestication and genetic improvement of Coix lacryma-jobi,four C.lacryma-jobi materials were selected as parents to construct four hybrid combinations.The characters and inheritance of involucre textures in F1 and F2 generations of different hybrid combinations were analyzed by visual statistics andχ^2 test.Results:Involucre texture enamel was dominant compared with chitin,and the separation ratio of enamel and chitin in F2 population was 3∶1,indicating that enamel involucre was controlled by apair of alleles and belonged to single gene dominant inheritance,which could be used as a marker trait for genetic improvement of C.lacryma-jobi.
作者
李祥栋
陆秀娟
石明
潘虹
魏心元
陆平
LI Xiangdong;LU Xiujuan;SHI Ming;PAN Hong;WEI Xinyuan;LU Ping(Guizhou Research Center for Adlay Engineering Technology,Xingyi,Guizhou 562400;Southwest Guizhou Institue of Karst Regional Development,Xingyi,Guizhou 562400;Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing,100081,China)
出处
《贵州农业科学》
CAS
2019年第11期1-4,共4页
Guizhou Agricultural Sciences
基金
贵州省科技计划项目“薏米精深加工产业化关键技术提升与应用”[黔科合重大专项字(2014)6023]
贵州省科技支撑计划项目“薏苡Waxy基因的发掘鉴定及新品种选育”[黔科合支撑(2016)2608]
贵州省高层次创新型人才培养项目[黔科合人才(2015)4016]
关键词
薏苡
总苞质地
性状
遗传规律
Coix lacryma-jobi
involucre texture
trait
inheritance law