塔里木河流域低地下水位区优势胡杨品种的筛选及其遗传标记的构建

胡杨（Populus euphratica Oilv．）是干旱荒漠地区非常重要的植物资源，塔里木河流域胡杨的研究和保护是令人关注的问题。因此对其进行研究具有重要的理论和实践意义。国内外对胡杨各方面开展的研究内容很多，根据研究进展发现，目前塔里木河河谷废弃河道和沙漠外缘的胡杨林研究仍处于被忽视的地位。因此本文提出了筛选塔里木河河谷优势胡杨品种和构建遗传标记体系的方案，并初步阐述了该方案在塔里木河胡杨林恢复和保护中的意义、方法和目标。

Selection of Dominant Populus euphratica Oliv. and Construction of Its Genetic Markers in Tarim River Section with Low Groundwater

Populus euphratica Oliv. is an important plant resources. And, the study and conservation of Populus euphratica Oliv. in Tarim are the major issue of concern, so the study is critical for both theory and application. According to the advances of the national and overseas, it was found, in the lower river branch of the Tarim River and the outer edge of the desert, that the study of the Populus euphratica Oliv. was neglected. So, the paper put forward the scheme of screening the dominant populus strains and constructing the genetic marker system in the lower groundwater of the Tarim River and elucidated the significance, methods and aims.