小麦异源2号、中国春与球茎大麦远缘杂交的受精和早期胚胎发育  

FERTILIZATION AND EARLY EMBRYO DEVELOPMENT IN HYBRIDZATIONS OF TRITICUM AESTIVUM L.CV.YIYUAN 2 AND T.AESTIVUM L.CV.CHINESE SPRING TO H.BULBOSUM L.

作　　者：胡超[1] 周永红[1] 丁春邦 杨瑞武 周绍莉 

机构地区：[1]四川农业大学基础部,雅安625014

出　　处：《四川大学学报（自然科学版）》1999年第5期951-954,共4页Journal of Sichuan University(Natural Science Edition)

基　　金：四川省教委重点项目

摘　　要：用石蜡切片法，对普通小麦（Ｔｒｉｔｉｃｕｍ ａｅｓｔｉｖｕｍ Ｌ．）异源２ 号、中国春与球茎大麦（Ｈｏｒｄｅｕｍ ｂｕｌｂｏｓｕｍ Ｌ．）远缘杂交受精过程和早期胚胎发育进行了比较观察．实验表明，仅具１对Ｋｒ基因的异源２ 号和具３ 对Ｋｒ基因的中国春与球茎大麦杂交，其受精和胚胎发育存在着明显的差异．为小麦与球茎大麦远缘杂交提供了细胞胚胎学证据．Observations were made on the fertilization and early embryo development in intergeneric crosses of Triticum aestivum <.cv.Yiyuan 2 and T.aestivum L.cv.Chinese Spring to H.bulbosumL.Evident defference presented in the fertilization and embryo formation of this study perhaps result from the effects of Kr genes in Yiyuan 2 and Chinese Spring.Cytoembryological evidence was given to demonstrate the high frequencies of fertilization and embryo formation in crosses between wheat and H.bulbosum.

关 键 词：小麦 球茎大麦 远缘杂交 受精 胚胎发育 

分 类 号：S512.103.5[农业科学—作物学]