马铃薯品种块茎性状的遗传分析  

THE HERIDITY ANALYSIS FOR TUBER CHARACTERS IN POTATO(SOLANUM TUBEROSUM)

作　　者：杨万林[1] 吴毅歆[1] 李先平[1] 阎发祥 隋启君[1] 

机构地区：[1]云南省农科院生物技术研究所,昆明650223 [2]云南省禄劝县农技中心,禄劝651500

出　　处：《中国马铃薯》2004年第1期19-26,共8页Chinese Potato Journal

基　　金：科技部"863"计划项目 ( 2 0 0 1AA2 4113 4) ;云南省科技攻关课题 ( 2 0 0 1NG0 6)

摘　　要：对Mira等 10个马铃薯品种的 2 2个杂交组合无性一代的块茎产量等 8个块茎性状的群体遗传参数和配合力效应进行了试验研究 ,结果表明 :淀粉含量的遗传受母本加性效应和亲本间非加性效应控制 ;单个块茎重的遗传受父本加性效应的控制 ;皮色、结薯数和块茎产量的遗传受非加性效应控制 ;薯形、肉色和块茎外观的加性和非加性效应同等重要。两个亲本 (至少有一个 )的一般配合力高的杂交组合后代的群体表现优于双亲具有一般配合力平均值的杂交组合 ;而双亲具有一般配合力平均值的杂交组合的群体表现优于双亲一般配合力都很低的杂交组合。根据一般配合力选择亲本配制大量杂交组合 。A study was conducted on 22 crosses from 10 varieties including Mira variety to evaluate for 8 tuber characters in the first clonal year potato crops. The results indicated that female additive gene actions and non-additive gene actions between parents were important in the progeny inheritance of starch content. Non-additive gene actions was more important than additive gene actions for tuber yield, skin-color and the numbers of tuber. It was opposite for the progeny's inheritance of single tuber weight. 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 flesh color, tuber shape and appearance. Progeny means of crosses involving both or at least one parent with good general combining ability were, in general, higher than other cross combinations for various characters including tuber yield. Selection of parents based on their general combining ability and crossing then in all possible combinations to select the best single plant or true-seed potato crosses by progeny test would be a suitable breeding strategy for potato crops.

关 键 词：马铃薯 品种 块茎性状 遗传分析 淀粉含量 皮色 结薯数 块茎产量 薯形 肉色 块茎外观 

分 类 号：S532[农业科学—作物学]