玉米高无机磷突变体的选育和特性研究  

Identification and characterization of low phytic acid germplasm in maize(Zea mays L.)

作　　者：徐秀红 吕桂华[2] 郭国锦[2] 陈坚剑[2] XU Xiuhong;LYU Guihua;GUO Guojin;CHEN Jianjian(Key Laboratory of Tobacco Quality in Guizhou Provbzce,College of Tobacco Scierzce,Guizhou University,Guiyang 550025,China;Dongyang Maize Research Institute of Zhejiang Province,Dongyang 322100,China)

机构地区：[1]贵州大学烟草学院/贵州省烟草品质研究重点实验室,贵州贵阳550025 [2]浙江省东阳玉米研究所,浙江东阳322100

出　　处：《浙江农业学报》2018年第8期1288-1294,共7页Acta Agriculturae Zhejiangensis

基　　金：浙江省公益性面上项目(2011C22017);浙江省重大科技专项农业项目(2012C129024)

摘　　要：采用60Coγ射线辐射诱变,创造出2个玉米高无机磷突变体lpa-zhong1和lpa-zhong2,研究了其突变的等位性和遗传控制类型,同时对野生型亲本和突变体的种子发芽率、磷组分含量、微量金属元素含量以及农艺性状和产量性状做了初步研究。结果表明,两个突变是等位的,且突变受单隐性基因所控制;与野生型亲本相比,突变造成种子发芽率降低;总磷、无机磷含量极显著增加,植酸含量显著下降;金属元素含量、农艺性状无显著变化;除了百粒重显著下降之外,其他产量性状差异不显著。In this study,by60 Coγ radiation mutagenesis,two high inorganic phosphorus maize mutants,lpa-zhong1 and lpa-zhong2,were created. The allelism of mutation and genetic controlling types,as well as seed germination rate and field emergence rate,the concentrations of various forms of phosphorus,trace elements content,agronomic traits and yield-related agronomic traits of the mutant lines and wild type parent lines,were studied in this study. The results showed that the two mutations are allelic,and the mutant was controlled by a single recessive gene. The mutation accounted for low germination rate,significantly increased concentrations of inorganic phosphorus and significantly reduced concentrations of phytic acid. Compared with the wild type parent lines,the trace elements content and agronomic traits of the maize mutant lines had no significant difference. Except the significant decline in the 100 grain weight,other yield-related traits had no significant difference.

关 键 词：玉米 植酸 高无机磷 突变体 特性 

分 类 号：S513[农业科学—作物学]