Genetic diversity analysis of local luffa resources in Hubei province
In order to preliminarily identify the local resources of luffa in Hubei province,genetic diversity analysis was conducted on 34 phenotypic traits of 46 luffa germplasm resources collected from Hubei province.The average coeffi-cient of variation of quantitative traits was 20.69%,with the largest coefficient of variation for fruit length(35.41%)and the smallest coefficient of variation for the number of edges(12.10%).The average coefficient of variation of quality traits was 31.66%,with the largest coefficient of variation for fruit stripe color(65.78%)and the smallest coefficient of variation for leaf margin(6.90%).The average diversity information indices of quantitative and qualitative traits were 1.829 and 0.686,respectively.Correlation analysis showed that there was a significant or extremely significant correlation between some traits.There was extremely significant positive correlation between blade length,blade width and cotyle-don width.The thickness of the main vine was significantly positively correlated with the blade length and blade width,and the flesh thickness was significantly positively correlated with the fruit transverse diameter.Cluster analysis and prin-cipal component analysis were performed on 46 luffa germplasm resources using DPS data processing system.The results showed that the 46 luffa germplasms could be clustered into three categories at the European distance of 124.6.Through principal component analysis of 34 traits,the result showed that the cumulative contribution rate of the top 10 principal components with characteristic value greater than 1 was 80.04%.The findings of this study can provide a reference for the classification and effective utilization of local luffa resources in Hubei province.
LuffaCoefficient of variationDiversity information indexCluster analysisPrincipal component analysisCorrelation analysis
万方数据
维普
