调控小麦苗期性状基因的染色体定位  

Chromosomal Location of Genes Controlling Seedling Traits of Wheat

作　　者：任永哲[1] 贵祥卫 王辉[1] 徐艳花[1] 张庆琛[1] 裴冬丽[1] 

机构地区：[1]商丘师范学院生命科学学院,河南商丘476000 [2]延津县农业局,河南延津453200

出　　处：《河南农业科学》2014年第5期20-23,共4页Journal of Henan Agricultural Sciences

基　　金：国家自然科学基金项目(31201678);国家重点实验室开放课题(2012-PCCE-KF-06);商丘师范学院青年科研基金项目(2011QN18)

摘　　要：为了进一步定位调控小麦苗期性状的基因,以中国春-埃及红染色体代换系为试验材料,采用盆栽方法对调控小麦苗期性状的基因进行染色体定位。结果表明:埃及红1A和5D染色体上携带正向调控分蘖数(TN)的基因,1B、4B、1D染色体上携带正向调控地上部干质量(SDW)的基因,7B和5D染色体上携带正向调控最长根长(MRL)的基因,1A和2A染色体上携带负向调控MRL的基因,1B染色体上携带正向调控根系干质量(RDW)、总干质量(TDW)的基因,2A和3B染色体上携带负向调控TDW的基因。1B染色体上检测到的调控RDW的位点、2A和5D染色体上检测到的调控MRL的位点、2A染色体上检测到的调控TDW的位点均是新发现的基因位点。The＇Chinese Spring-Egyptian Red＇ wheat substitution lines were used as materials to determine the chromosomal location of genes regulating the seedling traits of wheat.The pot culture was employed to examine the values of TN,MRL,RDW,SDW and TDW of each chromosomal substitution lines and their parents.The genes for corresponding traits were mapped to specific chromosomes based on significance analysis.Results showed that the genes controlling TN were located on chromosome 1A and 5D;the genes for SDW on chromosomes 1B,4B and 1D;the genes for MRL on chromosome 1A,2A,7B and 5D; the genes for RDW on chromosome 1D; and the genes for TDW on chromosome 2A,1B and 3B.In addition,the RDW genes on chromosome 1B,the MRL genes on chromosome 2A and 5D,and the TDW genes on chromosome 2A were the novel loci detected in this study.

关 键 词：小麦 苗期性状 基因 染色体定位 

分 类 号：S512.1[农业科学—作物学]