肉苁蓉的人工种植是集防风固沙、改善生态环境和增加农民经济收益于一体的朝阳产业，具有极大的经济效益、社会效益和生态效益。优良品种的缺乏是制约沙产业发展的重要因素。项目利用ISSR分析技术，从寄生角度对古尔班通古特沙漠中的索布古尔布格莱沙漠，霍景涅里辛沙漠，德佐索腾艾里松沙漠，阔布北阿克库姆沙漠中寄主梭梭和荒漠肉苁蓉自然居群的遗传多样性进行分析，从不同尺度解析肉苁蓉遗传多样性的特征、不同居群肉苁蓉之间的遗传关系，揭示其生态适应与多样性分布的特点，同时给合肉苁蓉形态和主要药效成分多样性建立一体化的指纹图谱数据库，阐明产地、居群、寄主等对其遗传多样性的影响，确定其遗传变异与形态和品质形成的相关性和内在联系，明晰古尔班通古特沙漠荒漠肉苁蓉种质间的亲缘关系，能够为植物学分类提供依据，为知识产权保护和分子鉴定提供技术，为品种选育提供核心种质，为经济有效地保存和利用种质资源提供分子遗传学依据。

Artificial planting of Cistanche deserticola Y.C.Ma is a sunrise industry for preventing windstorms and fastening sand, improving ecological environment and increasing the income of peasants, which has been great ecological benefits, economic benefits and social benefits. But the lack of elite variety is an important factor to restrict the development of its sand industry. From the parasitic relationship viewpoint, the project analyzes the natural population's genetic diversity of C. deserticola whose host is Haloxylon ammodendron and other plants in desert from the four major parts of the Gurbantunggut Desert using ISSR technology. Thus，we can analyze the characteristics of C. deserticola genetic diversity and the genetic relationship of different C. deserticola populations from different scales and reveal the characteristics of its ecological adaptation and diversity distribution. At the same time, the project establishes the integrative fingerprint database combining the diversity morphology and its main active components of C. deserticola to illuminate the effects of origin, populations and host on its genetic diversity and determine the correlation and intrinsic relationship about genetic variation with morphogenesis and quality formation. Through clearing the genetic relationship of different C. deserticola germplasms from Gurbantunggut Desert, the project provides the basis for the botanical classification, the technology for the intellectual property protection and molecular identification, moreover the core germplasm for variety selection, and provides the molecular genetics basis for preserving and utilizing the germplasm resources economically and effectively as well as.