针叶树多倍体及其在遗传育种中的应用研究  

Studies in the Polyploid of Conifer and the Future in Breeding

作　　者：张清国[1,2] 杨文华[2] 韩素英[2] 齐力旺[2] 梁国鲁[1] 

机构地区：[1]西南大学园艺园林学院,重庆400716 [2]中国林业科学研究院林业研究所,北京100091

出　　处：《生物技术通报》2009年第S1期58-61,78,共5页Biotechnology Bulletin

摘　　要：多倍体及多倍化已成为生命科学研究的热点,林木中,众多速生高抗品种的成功选育和应用给林木遗传育种带来了新的研究热潮。作为主要的用材树种针叶树,天然多倍体极少,研究材料极其缺乏,严重限制了多倍体的应用研究。大量多倍体植株的获得以弥补其天然发生不足,是促进多倍体针叶树研究发展的前提。利用体细胞胚胎发生技术结合染色体工程技术等现代生物技术取代传统组织培养,解决了针叶树组织培养中生长缓慢、生根困难的瓶颈,是获得人工多倍体针叶树的最重要途径。Polyploidization and polyploidy has been a research focus.Some of the polyploids had played an important role in the plant breeding for it fast growing and good stress-resistance.There are few polyploidy in conifer,lack of material limits the researching on polyploids that polyploid induced has be the most important step up to its application.The modern biotechnology such as somatic embryogenesis and chromosome engineering would become the most effective way to the induction and obtaining of polyploids in conifer for overcome the slowly growth and hardly root formation in normal culture in in vitro.

关 键 词：遗传育种 针叶树 多倍体 体细胞胚胎发生 生物技术 

分 类 号：S791[农业科学—林木遗传育种]