利用野生青狗尾草的细胞质培育谷子质核互作雄性不育材料  

Development of CMS Material from Intra-species Hybridization between Green Foxtail and Foxtail Millet

作　　者：智慧[1] 王永强[1] 李伟[1] 王永芳[1] 李海权[1] 陆平[2] 刁现民[1] 

机构地区：[1]河北省农林科学院谷子研究所/国家谷子改良中心,石家庄050031 [2]中国农业科学院作物科学研究所,北京100081

出　　处：《植物遗传资源学报》2007年第3期261-264,共4页Journal of Plant Genetic Resources

基　　金：国家自然科学基金项目(30630045;30471117);河北省自然科学基金项目(2004000697);国家支撑计划课题(2006BAD02B02)

摘　　要：利用野生青狗尾草N10为母本,谷子农家品种大青秸为父本,进行种间杂交,获得了3株杂种。杂种在农艺性状上表现为谷子和青狗尾草的种间类型,花器表现了雄性败育,但雌蕊发育正常,能接受外来花粉结实。细胞形态学观察表明,其雄性败育表现为单核小孢子典败。该谷子雄性不育材料的获得,为利用野生青狗尾草的细胞质培育谷子质核互作雄性不育系,进而为实现谷子三系配套杂种优势利用奠定了基础。Hybridization using green foxtail （Setaria viridis sub. viridis） accession N10 as maternal line and foxtail millet （Setaria italica） landrace Daqingjie as paternal line was made and three hybrid plants were obtained. The hybrid plants showed intermediated morphological development in plant height, stem diameter, length of panicle and the number of tillers. But the pollen development of the hybrids was abnormal and aborted pollens were ob- served in the anthers. Micro-observation showed that the hybrid microspores were restricted to development among the single-nuclear to mature pollen stage. But the pistils of the hybrid plants were normal and could easily fulfill fertilization with pollen from other lines and seed setting was nearly normal. Back-cross and hybridization with other foxtail millet cuhivars were successfully carried out for foxtail millet cytoplamic male sterile line development.

关 键 词：谷子 青狗尾草 雄性不育系 远缘杂交 

分 类 号：S515[农业科学—作物学]