Study on morphological genetics analytical method of Apis cerana cerana population
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Key Words：Apis cerana cerana,morphology,discriminate analysis,factor analysis,cluster analysis
Abstract：Mutivariate statistical analyses of 30 morphometric variables collected from three Apis cerana cerana populations were used to model the genetic relationships between populations.Stepwise discriminant analysis proved a good method for classifying populations and had the advantage of allowing the percentage of correctly classified specimens to be tested using Cross-Validation.Cluster analysis could assist discriminant analysis reveal the relationship between populations.In contrast,factor analysis assigned some samples to the wrong population and gave much more variable estimates of the genetic relationships between populations.The results obtained from cluster analysis were also relatively imprecise,varying with the variables analyzed,genetic distance and clustering method.