论文部分内容阅读
第一讲小麦染色体工程的研究现状小麦是我国的第二大粮食作物,常规育种已不能满足育种目标的要求,迫切需要开发近缘种、属的有利基因资源,而染色体工程是将近缘种、属基因导入、改良小麦的一个重要手段。 1.1 小麦染色体工程研究进展本世纪30—50年代是染色体工程基础材料的创制和基本理论形成时期。秋水仙素抑制纺锤丝形成和移动功能的发现为人工合成双二倍体、进行染色体组工程提供了有力的手段。1940年,O’Mara提出了产
Lecture 1 Wheat Chromosome Engineering Research Status Wheat is China’s second largest food crops, conventional breeding has failed to meet the requirements of breeding objectives, the urgent need to develop the relative species, genera favorable gene resources, and chromosome engineering is the relative species, Gene import, improve wheat is an important means. 1.1 Progress in Wheat Chromosome Engineering 30-50 years of this century is the foundation of chromosomal engineering and the formation of basic theory. The discovery that colchicine inhibits the formation and movement of spindle fibers provides a powerful tool for artificially synthesizing diploids and performing genome work. In 1940, O’Mara proposed production