中南林业科技大学学报2025，Vol.45Issue(7)：13-22,10.DOI:10.14067/j.cnki.1673-923x.2025.07.002
不同种源紫椴表型性状多样性分析与综合评价
Phenotypic diversity analysis and comprehensive evaluation of Tilia amurensis from different provenances
摘要
Abstract
[Objective]The phenotypic traits of different provenances of Tilia amurensis were analyzed to reveal the pattern of variation and genetic diversity.[Method]126 excellent individual plants were collected from ten provenances of Heilongjiang,Jilin and Liaoning Province.Fourteen phenotypic traits were determined and analyzed by multiple comparisons,correlation analysis,nested analysis of variance,correlation analysis,principal component analysis and(PCA)and cluster analysis.[Result]The results showed that the variation coefficient of 14 phenotypic traits from 10 provenances ranged from 6.68%to 43.73%.The genetic diversity index(H′)ranged from 1.71 to 2.03.The variation within provenances(76.86%)was higher than that among provenances(23.14%).The results of correlation analysis showed that there was a high degree of correlation among leave traits and flower traits.Principal component analysis showed that the cumulative contribution rate of the first five principal components reached 94.10%.The first principal component mainly reflected the indexes of leaves.The second principal component mainly reflected the index of bract.The third principal component mainly reflected the branch growth and vein index.The fourth and fifth principal component reflected the leaf shape and pedicel index.According to the comprehensive evaluation model,the comprehensive ranking of the ten provenances from high to low was Chaihe,Lushuihe,Dongfanghong,Kuandian,Yichun,Jiaohe,Jian,Raohe and Huma.The 10 provenances of T.amurensis were divided into three categories by cluster analysis.[Conclusion]The variation within provenances of T.amurensis was relatively high and was dominant.The results provided theoretical basis for the conservation and development of T.amurensis germplasm resources.关键词
紫椴/表型性状/种源/遗传多样性Key words
Tilia amurensis/phenotypic traits/provenances/genetic diversity分类
农业科技引用本文复制引用
李海霞,马文君,范玉明,李正华,白卉,李静,王艳敏,郭成博,郭宁,林士杰..不同种源紫椴表型性状多样性分析与综合评价[J].中南林业科技大学学报,2025,45(7):13-22,10.基金项目
黑龙江省省属科研院所科研业务费竞争项目(CZKYF2025-1-B041) （CZKYF2025-1-B041）
黑龙江省省属科研院所科研业务费项目(ZD2023-03) （ZD2023-03）
吉林省科技发展计划项目(20200402115NC). （20200402115NC）
