分子标记在园林植物选择育种中的应用与展望

Application and Advance of Molecular Markers in Selective Breeding of Landscape Plants

分子标记具有数量多，多态性高，不受季节、环境条件限制，不影响目标性状表达，能够鉴别出纯合基因型和杂合基因型，提供完整的遗传信息等优点，已成为近年来园林植物遗传多样性评价、遗传图谱构建、品种鉴定、基因定位和分子标记辅助选择育种等领域科学研究的主要手段．概述了分子标记在园林植物相关研究中的应用，并对存在的问题和应用的前景进行了探讨．

Molecular markers have many advantages such as big quantity, high polymorphism, no season or environmental limitations, no effect on the expression of target characters, be able to identify homozygous and heterozygous genotypes and provide complete genetic information. Therefore, they have been the primary means of scientific research in recent years in such fields as evaluation of genetic diversity of landscape plants, genetic mapping, species identification, gene positioning and marker-assisted breeding. This. paper summarizes the application of molecular markers in the research of landscape plants, and discusses the problems and prospects of the application.