北京林业大学学报2018，Vol.40Issue(3)：110-121,12.DOI:10.13332/j.1000-1522.20170380
菏泽和洛阳芍药品种资源表型多样性研究
Phenotype diversity of herbaceous peony variety resources in Heze, Shandong of eastern China and Luoyang, Henan of central China
摘要
Abstract
[ Objective ] Paeonia lactiflora is an excellent Chinese traditional flower with rich variety resources. Heze of Shandong Province, eastern China and Luoyang of Henan Province, central China are main cultivation regions with abundant cultivars in China, but lacking genetic diversity report based on the phenotypic traits. This is not conducive to the protection, development and utilization of germplasm resources. [ Method] In this paper, the genetic diversity of 240 herbaceous peony cultivars from Heze and Luoyang was analyzed based on 28 phenotype traits using principal component analysis, factor analysis and cluster. [ Result] The results showed that the genetic diversity index of quantitative and quality traits were 1. 98-2. 10 and 0. 28-1. 94, and the genetic diversity of majority traits was high. The 10 main components were extracted, then the factor load matrix was processed using the maximum orthogonal rotation by Varimax. The 10 main factors affecting their phenotype were obtained, including height, flower color quantity, lateral bud and growth vigor , flower type, petalody, leaf type and flower diameter, flower season, stem color, leaflet curly and flower bud. The 240 varieties were divided into six groups by cluster analysis. The first to fourth groups included 69, 67, 16 and 84 cultivars, respectively. The fifth and sixth groups only had one and three varieties, respectively, suggesting that those four cultivars were different sources from the other 236 varieties. [ Conclusion ] This study clarified the phenotypic diversity characteristics and relationship of 240 varieties from Heze and Luoyang. In the future breeding, plant height, flower branch length, flower color number, plant growth vigor, flower pattern and petalization of parents should be paid more attention. At the same time, the parents should be far away each other in the affinity clustering diagram.关键词
中国芍药/表型多样性/亲缘关系/育种Key words
Chinese herbaceous peony/phenotype diversity/genetic relationship/breeding分类
农业科技引用本文复制引用
万映伶,刘爱青,张孔英,刘燕..菏泽和洛阳芍药品种资源表型多样性研究[J].北京林业大学学报,2018,40(3):110-121,12.基金项目
北京市科委重大项目"四类中国传统名花良种繁育及花期调控技术研究"(D161100001916004). （D161100001916004）
