项目名称: 西藏野生葱属植物种质资源分类、描述符建立及综合评价
项目编号: No.31260478
项目类型: 地区科学基金项目
立项/批准年度: 2013
项目学科: 农业科学
项目作者: 王忠红
作者单位: 西藏大学农牧学院
项目金额: 50万元
中文摘要: 西藏有着丰富的野生葱属植物种质资源,蓝苞葱等已成为其产地农牧民的主要食用蔬菜和经济收入的重要来源。目前对西藏野生葱属植物种质资源缺乏系统的研究。因此,本项目拟在全面调查的基础上,以植物学特征为主,结合细胞学(染色体及核型特征)与孢粉学(花粉粒超微结构)对西藏野生葱属植物种质资源进行重新分类;综合原始生境、植物学特征、开花结实特性、种子质量、营养价值、抗逆性等信息,建立西藏野生葱属植物种质资源描述符;从农艺性状如营养价值、重金属富集特性、抗逆性,繁衍更新特征,以及在细胞学和孢粉学水平上对西藏野生葱属植物种质资源进行综合评价。探明西藏野生葱属植物种质资源情况,为我国乃至世界以优异基因资源利用为核心的野生葱属植物种质资源的创新研究提供基础数据,为西藏野生葱属植物高效开发利用进而服务藏民族的生产生活提供理论依据。
中文关键词: 西藏;野生葱属植物;种质资源;描述符;评价
英文摘要: Abstract: Tibet is rich in germplasm resources of wild Allium L. species. Wild species in the genus Allium such as Allium atrosanguineum has become a major vegetable and significant income source for local residents. However, there has been no systematic study on the germplasm resources of Tibetan wild Allium L. species. Therefore, on the basis of thorough survey of the wild species in genus Allium L. of Tibet, the current project aims to perform a reclassification by the main botanical characteristics, combined with cytology (chromosome and karyotype features) and palynology (pollen grain ultrastructure), and establish trait descriptors including the original habitat, botanical traits, flowering and fruiting characteristics, seed quality, nutrients of the edible parts, stress resistance and other information. At the same time, we will make a comprehensive evaluation on the wild genetic resources of Allium L. based on agronomic traits such as nutritional value, the enrichment characteristics of soil heavy metals, stress resistance, reproduction update features, as well as cytologic and palynologic data. Investigation of wild Allium L. genetic resources in Tibet will provide basic dataset for innovative research of germplasm resources with the core of using favorable gene pools both domestically and international
英文关键词: Tibet;wild Allium L. species;germplasm;descriptors;evaluation