黑龙江农业科学Issue(5)：67-77,11.DOI:10.11942/j.issn1002-2767.2025.05.0067
黑龙江省茶条槭种质资源表型多样性分析
Phenotypic Diversity Analysis of Germplasm Resources of Acer ginnala in Heilongjiang Province
摘要
Abstract
In order to promote the breeding,germplasm innovation,genetic improvement,and protection of germplasm resources of Acer ginnala in Heilongjiang Province,based on the distribution of A.ginnala in Heilongjiang Province,20 populations were selected for research on their phenotypic variation amplitude,phenotypic trait differentiation,epigenetic genetic diversity,and the interrelationships between various traits.The results showed that the mean coefficients of variation for the phenotypic traits in descending order was petiole length/width(38.73％ ),petiole width(29.49％ ),leaf length/petiole length(21.62％ ),left side angle(20.55％ ),petiole base width(19.99％ ),number of leaf veins(19.29％ ),petiole length(17.83％ ),fruit thickness(15.74％ ),leaf length/width(15.63％ ),samara length/width(15.14％ ),leaf width(12.98％ ),leaf length(12.42％ ),leaf blade length(10.37％ ),samara length(10.25％ ),samara width(9.65％ ),fruit width(8.83％ ),seed length(7.32％ ),fruit length(7.15％ ),seed width(6.67％ ),hilum(6.49％ ),seed thickness(6.43％ ),and samara connection angle(6.35％ ).The average coefficient of variation for leaf traits was 19.90％,for samara traits was 9.95％,and for seed traits was 6.81％ .The results indicated that phenotypic traits were closely related to geographic location.Significant geographic gradient effects on leaf morphological traits were observed with changes in latitude,longitude,and altitude.Most of the phenotypic diversity occurred between populations,with populations exhibiting higher phenotypic diversity found in higher latitudes.The populations from Sunwu,Nenjiang,and Zhanhe showed the largest coefficient of variation,at 16.91％,16.31％,and 15.83％,respectively.It is recommended that the Sunwu,Nenjiang,and Zhanhe populations be prioritized for conservation.关键词
茶条槭/表型性状/遗传多样性/地理梯度效应/黑龙江省Key words
Acer ginnala/phenotypic traits/genetic diversity/geographic gradient effect/Heilongjiang Province引用本文复制引用
舒钰,孔文汇,王钰婷..黑龙江省茶条槭种质资源表型多样性分析[J].黑龙江农业科学,2025,(5):67-77,11.基金项目
黑龙江省省属科研院所科研业务费项目(QN2024-02). （QN2024-02）
