小麦矮杆突变体盈矮1号(Tr. aestivum)性状表现及分析  

Characteristics of a New Dwarfing Mutant Yingai 1 in Wheat (Tr. aestivum)

作　　者：孙利 付庆云 王梅菊 李扬 付腾浩 李卫国 李刚 郭建 谭焕云 赵明辉 赵凤梧 PavolHauptvogel EditaGregova MariaZivcakova 

机构地区：[1]深州市种业有限公司,河北 深州 [2]National Agricultural and Food Centre, Research Institute of Plant Production, Piestany

出　　处：《农业科学》2020年第1期35-42,共8页Hans Journal of Agricultural Sciences

基　　金：重点研发计划项目(2016YFD0101602),河北省现代种业科技专项(19226372D)资助项目.

摘　　要：对基因型济麦22 (Tr. aestivum)进行60Co γ射线辐射处理,选育出矮杆突变体盈矮1号。该突变体与野生型相比,株高降低14.92 cm,降低幅度达到22.36%。株高降低的主要原因茎杆各节间长度及穗长缩短,均达0.01极显著水平,节间数目未发生变化。其中,基部第一、第二、第三、第四、第五个节间及穗长分别降低1.03 cm、1.5 cm、1.25 cm、1.41 cm、8.62 cm及1.12 cm,降低范围分别为37.34%、20.11%、11.34%、8.38%、41.15%及14.51%。小穗着生密度增加17.95%。尚未发现该矮生性状与其他不良性状连锁现象。同野生型相比,矮生性在对株穗数、穗粒数及粒重等产量性状的影响不显著,不同于Rht1、Rht2及Rht8基因的作用,估计与新的矮化类型(基因)有关。A drafting mutant Yingai 1 was successfully selected from progenies of common wheat genotype Jimai 22 (Tr. aestivum) treated by 60Co γ-ray irradiation. Plant height was reduced 14.92 cm, or 22.36% lower than its wild type, caused by the shortening of length of both internodes and head that all matched the 0.01 level of the main stem, but no changes for the internodes number. Among them the length of 1st, 2nd, 3rd, 4th, 5th internodes and heads was reduced 1.03 cm, 1.5 cm, 1.25 cm, 1.41 cm, 8.62 cm and 1.12 cm individually;it was falling to 37.34%, 20.11%, 11.34%, 8.38%, 41.15% and 14.51%, respectively. Spikelet density increased by 17.95%. It was not observed that linkage between the dwarfing trait with other undesirable ones. There was no difference among the dwarfing character with yield components of heads/plant, grains/head and 1000-grain weight concluded different function from genes of Rht1, Rht2 and Rht8. It was estimated that the phenomenon maybe related to a new kind of dwarfing type (gene) from the 60Co γ-ray irradiation.

关 键 词：小麦 ^(60)Co Γ射线 株高 盈矮1号 矮生突变体 

分 类 号：S51[农业科学—作物学]