利用RAPD进行玉米自交系种质类群划分的研究  

A Study on the Classification of Maize Germplasm Using RAPDs

作　　者：田曾元[1] 王懿波[1] 王振华[1] 王永普[1] 张新[1] 陆利行[1] 

机构地区：[1]河南省农业科学院粮食作物研究所,河南郑州450002

出　　处：《华北农学报》2001年第2期31-37,共7页Acta Agriculturae Boreali-Sinica

基　　金：河南省自然科学基金重点资助项目! (99- 0 4- 0 1- 0 6 - 0 0 )

摘　　要：对 31个玉米自交系进行了RAPDs分析 ,结果表明 :31个玉米自交系可分为 5大群 ,即旅群 (Ⅳ - 1组 ) ,Lan .Ⅱ群 (Ⅳ - 2A亚组 )、Reid群 (Ⅳ - 2B亚组 )、Lan .Ⅰ群 (Ⅳ - 1组 )和黄改群(Ⅳ - 5和Ⅳ - 6两组 )和 4个小群 :Ⅰ组的P138、Ⅱ组的郑 2 2、Ⅲ组的综 31和Ⅳ - 4组的郑 32和U8112。依据RAPDs的划分结果同依据系谱关系。Thirty one maize inbred lines were classified into five major groups by RAPDs:Ludahonggu group(Ⅳ-1),Lan.Ⅱ group(Ⅳ-2A),Reid group(Ⅳ-2B),Lan.Ⅰ group(Ⅳ-3) and Improved Huangzao 4 group (Ⅳ-5 and Ⅳ-6),and four minor groups:P 138 (Ⅰ),Zheng 22(Ⅱ),Zong 31(Ⅲ),Zheng 32 and U 8112(Ⅳ-4).Comparison of the result based on RAPDs with that based on pedigree,combining ability and heterosis showed that the former is basically identical with the latter,while there is little difference for some inbred lines between the two results.And some aspects about the synthetical utilization of classification results in corn breeding were also discussed.

关 键 词：玉米 种质类群划分 自交系 RAPD分析 遗传距离 

分 类 号：S513[农业科学—作物学]