基于混合线性模型山茶花种质资源核心库构建

项目名称： 基于混合线性模型山茶花种质资源核心库构建

项目编号： No.31470697

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 农业科学

项目作者： 李辛雷

作者单位： 中国林业科学研究院亚热带林业研究所

项目金额： 80万元

中文摘要： 山茶花（Camellias）原产我国，为我国十大名花之一。我国不仅是山茶属植物的分布中心，也是原始发祥地，山茶属物种约200种，我国占80％以上，在两千多年的栽培、应用过程中形成了大量色彩丰富、姿态各异的品种资源。丰富的山茶花种质资源为保存带来极大困难及较高成本，造成资源大量流失，同时也限制了对资源的系统深入研究和高效利用。 本项目拟对山茶花种质资源的基本数据、特征数据和评价鉴定数据进行系统收集、整理与评价，建立种质资源数据库并加以规范化、数字化、标准化；采用混合线性模型统计分析方法无偏预测基因型值，用基因型值构建山茶花种质资源核心库；利用主成分分析、相关分析及判别分析等数据分析方法，对所构建核心种质的代表性进行评价，筛选并挖掘出特异优质核心种质进行重点保存。山茶花种质资源核心库构建将有利于资源收集、评价和重点种质的保存，极大提高资源利用效率，为种质创新和品种改良提供物质基础和理论依据。

中文关键词： 山茶花；种质资源；核心种质；构建；混合线性模型

英文摘要： Camellias, one of the top ten traditional famous flowers, Originated in China. China is the distribution center and the original birthplaces. More than 80% species of Camellia which is about 200 distribute in China, and a large number of colorful, different attitude varieties were formed in the two thousand years of cultivation and application process. Abundant germplasm resources has caused great difficulties and higher costs for preservation, resulting in a huge loss of resources, and limited the in-depth research and efficient use of them. The project intends to systematically collect, sort out and evaluate the basic data,characteristic data and evaluation and identification data of Camellia resources, and then establish and standardize germplasm resources database. To unbiase predict genotypic values using statistical analysis method of mixed linear model, and build core collection of camellias by genotypic values. To evaluate the validity of the core collection constructed by the use of principal component analysis,correlation analysis and distinguish analysis and other data analysis methods. Select and dig out the specific and high quality core collection for focusing conserve. The building of Camellias core collection will benefit the collection, evaluation and preservation of focus germplasm, greatly improving the efficiency of resource use, and provide material and theoretical basis for germplasm innovation and improved varieties.

英文关键词： Camellias;Germplasm resource;Core collection;Construction;Mixed linear model