云南省马铃薯品种的配合力分析及亲本选配  

Combining Ability Analysis Parents Selecting and Crosses Mating in Potato (Solatium tuberosum L.) in Yunnan Province

作　　者：杨万林[1] 郭顺堂[1] 

机构地区：[1]中国农业大学食品科学与营养工程学院,硕士研究生北京100083

出　　处：《分子植物育种》2004年第3期451-452,共2页Molecular Plant Breeding

基　　金：国家科技部“863”计划项目(项目编号:2001AA241134);云南省“十五”科技攻关项目(项目编号:2001NG06)的资助

摘　　要：本研究选用Mira等lO个当地马铃薯品种,通过不完全双列杂交遗传设计配制成22个杂交组合,对杂交组合后代群体在无性一代的晚疫病抗性、生长势等7个植株性状以及块茎产量、淀粉含量等8个块茎性状的群体遗传效应和配合力效应进行了分析。其中,对马铃薯的块茎肉色、开花性、株形分离、株高分离、茎色分离和花色分离的配合力研究是首次报道。通过对当地四类主要的马铃薯品种的遗传分析,结果表明:(1)晚疫病抗性和单个块茎重的父本效应分别达65.2％、56.7%,群体遗传主要受父本效应影响;淀粉含量的遗传主要受母本效应和亲本间非加性效应的影响,其遗传效应分别达40.5%、44.9％;株形分离、株高分离、开花性、茎色分离、皮色、结薯数和块茎产量等7个性状的非加性效应在66.8％-93.0％之间,群体遗传主要受亲本间遗传差异的影响;植株生长势、花色分离、薯形、肉色和块茎外观等5个性状的加性和非加性效应同等重要。(2)HZ23、HZ88、K6、N7是4个综合性状优良的亲本,ZHXW、XWYY是2个紫色肉质的特色亲本;Mira×K6、Hui-2×K6、HZ23×K6、Hui-2×N7、HZ88×N7等5个组合是综合性状评价较好的杂交组合;HZ23×N7是一个优良杂交实生籽组合;HZ88×ZHXW、HZ23×ZHXW是综合性状优良的特色杂交组合,可从中筛选出紫色或红色肉质的优良?A study was conducted on 22 crosses from 10 varieties including mira variety to evaluate for 7 characters of plant including plant's vigor and for 8 characters of tuber including tuber yield in the first clonal year potato crops. It was first reported combining ability research for tubers flesh color, flowering qualities, separating of plant's shapes and heights, color separating of stems and flowers in the progeny's inheritance in potato crops. The results indicated: (1) Non-additive gene actions of separating of plant's shapes and heights, color separating of stems, flowering qualities, skin-color, tuber yield and the number of tubers were from 66.8% to 93.0%, and more important than additive gene actions in the progeny's inheritance. It was opposite to the progeny's inheritance of late blight resistance and single tuber weight. These male genetic actions were 65.2%, 56.7%. Female genetic actions and non-additive gene actions were 40.5%, 44.9% in the progeny's inheritance of starch content. And both additive and non-additive gene actions were found to have the same importance with a preponderance of the later in the inheritance of plant vigor, color separating of flowers, flesh color, tuber shape and appearance. (2) HZ23, HZ88, K6 and N7 were 4 superior parents for various characters synthetically. ZHXW and XWYY were two characteristic parents for purple flesh. Mira× K6, Hui-2 × K6, HZ23 × K6, Hui-2 × N7, HZ88×N7 were 5 promising crosses. HZ23×N7 was a superior ture-seed potato cross. HZ23 ×ZHXW and HZ88 × ZHXW were 2 promising crosses in which some superior purple or red flesh clones would be selected. (3) The potato varieties resource of CIP (International potato center) would be the most important parents in the breeding system in yunnan. The varieties were introduced from other places couldn't utilized directly, but some of these varieties could be used as parents, for example, N7 and K6. (4) Progeny means of crosses involving both or at least one parent with good

关 键 词：云南 马铃薯 品种类型 配合力分析 亲本选配 

分 类 号：S532[农业科学—作物学]