倍性育种——“双单倍体-2n配子”途径选育优质马铃薯新品种研究  

Potato Multiploidy Breeding: Selective Breeding High Quality Potato New Variety by "Diplohaplont -2n Gametes" Resarch Progress

作　　者：陈家集 余柏胜[2] 田恒林 田祚茂 赵迎春 沈艳芬 程群 

机构地区：[1]中国南方马铃薯研究中心,湖北恩施445000 [2]中国农业大学,北京100094

出　　处：《湖北民族学院学报（自然科学版）》2002年第4期35-37,共3页Journal of Hubei Minzu University(Natural Science Edition)

基　　金：湖北省科技厅重点科技攻关项目

摘　　要：通过连续 5年马铃薯的育种研究 ,已创造筛选出 10份 2n配子频率 30 %以上 ,花粉育性强、抗青枯病与病毒病、晚疫病抗性较好、产量高、块茎性状较好的 2n配子材料 ,并与一批优良的 4X普通栽培种杂交 ,获得了45个 4X - 2X杂交组合 ,80 44 1粒实生籽 .从目前实生苗的长势长相来看 ,具有很强的杂种优势 .Through five consecutive years research, up to now over 10 parts of 2n gametes materials have been created and selected, whose 2n gametes frequency is over 30%, which have high male flower fertility, high resistance to potato Bacterial Wilt and Virus and Late Blight, high yield and high quality tuber. They have been crossed with some high quaity 4x common cultivated species to get 45 pairs of 4X-2X cross-groups and 80 441 seeds. The result showed that the seedling from the seeds has very strong cross-dominant position, in which high quality potato variety could be selected hopefully.

关 键 词：双单倍体-2n配子 杂种优势 优良品种 

分 类 号：S532[农业科学—作物学]