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[目的]为光倒刺鲃的良种选育提供理论基础。[方法]对3个不同种群(北江、东江、赣江)光倒刺鲃的27个可量性状和22个框架性状进行主成分分析、聚类分析和判别分析。[结果]构建了3个主成分,其贡献率分别为26.026%、15.502%和7.81%,累计贡献率为49.399%。可将3个光倒刺鲃种群分为2个大簇,一簇是赣江,另一簇是北江和东江,聚类分析结果和主成分分析结果相一致。建立的判别公式可区分3个不同地域的光倒刺鲃,其样品判别正确率为100%,交叉验证判别正确率为98.03%。[结论]该研究可为光倒刺鲃的种群鉴定、种质资源保护及其后续良种选育提供基础资料。
[Objective] The research aimed to provide the theoretical basis for the breeding of light-cured barbed sow seeds. [Method] The principal component analysis, cluster analysis and discriminant analysis of 27 measurable traits and 22 traits of light barbed frog in three different populations (Beijiang, Dongjiang and Ganjiang) were conducted. [Result] Three principal components were constructed, with the contribution rates of 26.026%, 15.502% and 7.81% respectively, and the cumulative contribution rate was 49.399%. Three populations of Halophthalmus pectinatus can be divided into two large clusters, one cluster is Ganjiang River and the other cluster is Beijiang River and Dongjiang River. Cluster analysis results are consistent with principal component analysis results. The established discriminant formula can distinguish three different regions of light barbed 鲃, the sample identification accuracy rate of 100%, cross-validation identification accuracy rate of 98.03%. [Conclusion] This research could provide the basic information for the identification of the light-haired moth, the protection of germplasm resources and the subsequent breeding of elite seeds.