柱穗山羊草远缘杂交育性的探讨  

Study on Intergeneric and Interspecific Hybrid Fertility of Ae.cylindrica Host

作　　者：张海泉[1] 张金良[1] 

机构地区：[1]河北经贸大学生物科学与工程学院,河北石家庄050061

出　　处：《河南农业科学》2007年第2期23-27,共5页Journal of Henan Agricultural Sciences

基　　金：河北省科学技术研究与发展指导计划项目(05225510);河北省教育厅科学研究计划项目(Z2006103)

摘　　要：选用柱穗山羊草分别与普通小麦、硬粒小麦和粗山羊草远缘杂交,发现结实率非常低。远缘杂交后代绝大部分有乳无胚或者有胚无乳;以普通小麦为母本与柱穗山羊草杂交,F1代分蘖率极高,植株性状出现中亲遗传或超亲遗传,杂交种回交或自交结实率非常低。Crosses were made between Ae. cylindrica Host Y127 and Ae. tauschii,Ae, cylindrica Host Y127 and T. durum Desf,Ae. cylindrica Host Y127 and wheat. The set rates of all distant hybridization descendants were extremely low and the dominant parts of seeds produced were abnormal,without embryo or without endosperm. The F1 plants of wheat/Y127 gave many tillers, but the backcrossing or self-pollinating descendants produced few seeds.

关 键 词：柱穗山羊草 粗山羊草 硬粒小麦 普通小麦 远缘杂交 育性 

分 类 号：S334.3[农业科学—作物遗传育种]