植物遗传资源学报2026，Vol.27Issue(9)：1733-1745,13.DOI:10.13430/j.cnki.jpgr.20260420004
越南油茶叶片表型性状多样性分析
Diversity Analysis of Leaf Phenotypic Traits of Camellia drupifera Lour.
摘要
Abstract
To explore the variation pattern of leaf phenotypic traits in Camellia drupifera Loureiro,and to provide a theoretical basis for germplasm resource improvement and new germplasm breeding,we selected 14 populations of C.drupifera from different distribution areas as research materials.Ten leaf phenotypic traits were measured and analyzed using multiple statistical methods.The results showed that some leaf phenotypic traits exhibited significant differences among populations and individuals,with abundant phenotypic variation.The coefficients of variation of the 10 traits ranged from 14.67％to 32.73％,with an overall average of 19.95％.Highly significant correlations were detected among most of the traits.Size traits including leaf length,leaf width and leaf area showed synergistic positive correlations.Leaf length-width ratio was highly significantly negatively correlated with leaf shape coefficient.Leaf thickness was relatively independent,and the leaf shape coefficient was negatively correlated with most morphological traits.Cluster analysis revealed that the 14 populations could be divided into two clusters,and the clustering results were in good agreement with the actual geographical distribution.Environmental factor correlation analysis indicated that latitude,mean January temperature,annual mean temperature and annual extreme minimum temperature showed significant or highly significant negative correlations with leaf size-related traits,which were identified as the key influencing factors.In contrast,longitude and total annual sunshine hours had no significant effect on any leaf phenotypic trait.Conclusively,there is abundant leaf phenotypic variation among different populations of C.drupifera with distinct geographic differentiation.Provenances from different clusters can be screened as high-quality breeding materials according to specific breeding objectives.关键词
越南油茶/叶片表型性状/多样性/变异分析/聚类分析/主成分分析Key words
Camellia drupifera Lour./leaf phenotypic traits/diversity/variation analysis/cluster analysis/principal component analysis引用本文复制引用
李鹏翔,刘凯,梁国校,陈梦秋,张幸,吕金凤,郝丙青,马锦林..越南油茶叶片表型性状多样性分析[J].植物遗传资源学报,2026,27(9):1733-1745,13.基金项目
广西壮族自治区国有资产监督管理委员会国储林油茶应用技术研究与示范项目(桂国资规划[2024]70号) （桂国资规划[2024]70号）
广西科技基地和人才专项(桂科AD23026327) （桂科AD23026327）
广西自筹经费林业科技项目(2024GXZCLK16)Guangxi Zhuang Autonomous Region State-owned Assets Supervision and Administration Commission State-owned Forest Oil-tea Application Technology Research and Demonstration Project(Guangxi State-owned Assets Planning[2024]No.70) （2024GXZCLK16）
Special Project for Guangxi Science and Technology Bases and Talents(Guike AD23026327) （Guike AD23026327）
Guangxi Self-funded Forestry Science and Technology Project(2024GXZCLK16) （2024GXZCLK16）
