Genetic differentiation in functional traits among wild cherry (Prunus avium L.) half-sib lines  

作　　者：Srđan Stojnić Branislav Kovačević Marko Kebert Verica Vasić Vanja Vuksanović Branislav Trudić Saša Orlović 

机构地区：[1]Institute of Lowland Forestry and Environment,University of Novi Sad,AntonaČehova 13d,Novi Sad,21000,Serbia [2]Faculty of Agriculture,University of Novi Sad,Trg Dositeja Obradovića 8,Novi Sad,21000,Serbia [3]Food and Agriculture Organization of the United Nations,Viale delle Terme di Caracalla,00153,Rome,Italy

出　　处：《Journal of Forestry Research》2022年第3期991-1003,共13页林业研究（英文版）

基　　金：The study was fi nanced by the Ministry of Education,Science and Technological Development of the Republic of Serbia(contract number:451-03-9/2021-14/200197).

摘　　要：Understanding intra-specific variation in leaf functional traits is one of the key requirements for the evaluation of species adaptive capacity to ongoing climate change, as well as for designing long-term breeding and conservation strategies. Hence, data of 19 functional traits describing plant physiology, antioxidant properties, anatomy and morphology were determined on 1-year-old seedlings of wild cherry (Prunus avium L.) half-sib lines. The variability within and among half-sib lines, as well as the estimation of multi-trait association, were examined using analysis of variance (ANOVA) followed by Tukey's honestly significant difference test and multivariate analyses: principal component analysis (PCA), canonical discriminant analysis (CDA) and stepwise discriminant analysis (SDA). Pearson’s correlation coefficient was used to evaluate linear correlation between the study parameters. The results of the ANOVA showed the presence of statistically significant differences (P < 0.01) among half-sib lines for all study traits. The differences within half-sib lines, observed through the contribution of the examined sources of variation to the total variance (%), had higher impact on total variation in the majority of the examined traits. Pearson’s correlation analysis and PCA showed strong relationships between gas exchange in plants and leaf size and stomatal density, as well as between leaf biomass accumulation, intercellular CO_(2) concentration and parameters related to antioxidant capacity of plants. Likewise, the results of SDA indicate that transpiration and stomatal conductance contributed to the largest extent, to the discrimination of the wild cherry half-sib lines. In addition, PCA and CDA showed separation of the wild cherry half-sib lines along the first principal component and first canonical variable with regards to humidity of their original sites. Multiple adaptive differences between the wild cherry half-sib lines indicate high potential of the species to adapt rapidly to climate change. Th

关 键 词：Wild cherry Common garden experiment VARIABILITY Multivariate statistics Leaf functional traits 

分 类 号：S792.99[农业科学—林木遗传育种]