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落叶松(Larix SPP.)是我国东北、内蒙古林区的主要森林组成树种,是东北地区针叶用材林最重要树种之一,我国从上世纪七十年代开始进行的落叶松遗传改良,至今已经40余年。随着科技水平的日益发展,在林木的定向遗传改良中,分子遗传改良已经成为越来越重要的一种途径,学者们利用分子标记及转基因技术探索出一批与落叶松生长、材性相关的基因,为落叶松定向遗传改良提供方向,本研究对中国北方落叶松分子育种相关研究进行总结,并对落叶松分子育种中存在的主要问题进行探讨,提出发展方向和建议,为落叶松分子遗传改良提供理论基础。
Larch (Larix SPP.) Is a major tree species in Northeast China and Inner Mongolia. It is one of the most important tree species of coniferous timber in northeastern China. The genetic improvement of Larix in China since the 1970s has been 40 I year. With the development of science and technology, molecular genetic improvement has become an increasingly important approach in the directional genetic improvement of forest trees. Scholars have explored a number of strategies related to the growth and wood properties of larch by using molecular markers and transgenic techniques , Which provide the direction for the directional genetic improvement of larch. In this study, we summarized the molecular breeding of Larix principis-rupprechtii in North China and discussed the main problems existing in molecular breeding of Larix. We proposed the development direction and suggestions for larch seed Genetic improvement provides the theoretical basis.