化州市化橘红种质资源主成分分析和聚类分析

应用主成分分析和聚类分析,从宏观和微观2个层面分析鉴别化橘红种质资源,以期为化橘红种质资源的鉴定、评价、保护、开发和利用提供参考依据.利用SPSS 19.0对化橘红种质资源17项主要植物学数量性状指标和6项理化指标进行变异性和主成分分析,采用MEGA7对SNP结果进行聚类分析.研究发现,不同化橘红种质资源在有效成分、花...

Principal Component Analysis and Cluster Analysis of Citri grandis Exocarpium Germplasm Resources in Huazhou

The purpose is to apply principal component analysis and cluster analysis to analyze and identify Citri grandis exocarpium germplasm resources in macro and micro level, and provide a basis for identifying, evaluating, protecting, developing and utilizing Citri grandis exocarpium germplasm resources. SPSS 19.0 was used to analyze the variability and principal components of 17 major botanical quantitative trait indexes and 6 physical and chemical indexes of Citri grandis exocarpium germplasm resources, MEGA7 was used to conduct the cluster analysis based on the SNP results. It is found that different Citri grandis exocarpium germplasm resources vary significantly in effective components, flower and leaf traits; and there are 6 main component factors including flavonoid factor and fruit shape factor and 12 influential indicators including naringin, total flavonoids and pistil thickness; germplasm resources are clustered into 2 categories and each has its own characteristics.