生态学杂志2017，Vol.36Issue(10)：2707-2715,9.DOI:10.13292/j.1000-4890.201710.031
元宝枫天然种群种实表型多样性
Phenotypic diversity of wing fruits and seeds in natural populations of Acer truncatum Bunge in China
摘要
Abstract
Acer truncatum is an endangered plant endemic to China.Our objectives were to determine the variations in phenotypic traits of A.truncatum populations and their spatial patterns.We used nested variation,coefficient of variation,multi-comparison,correlation analysis and UPGMA cluster analysis to analyze 13 phenotypic traits of fruits and seeds for 150 individuals in 15 populations of A.truncatum.The results showed that there were extremely significant differences among and within populations.The mean coefficient of phenotypic differentiation between populations was 19.87％,which was lower than that within populations (80.13％),indicating that the variance within population was the main source of the phenotypic variation of the species.The coefficient of variance (CV) of the 13 traits was 8.98％-21.45％,with an average of 13.34％.The CV of seeds among populations (11.46％) was lower than that of wing fruits (14.52％),which means that the seeds have higher stability than the fruits.Principal component analysis (PCA) showed that the main variation source of A.truncatum came from the fruits.Correlation among traits showed that the larger the fruits,the larger the seeds.The angle of the fruits was independent of the fruits and seed sizes.The fruit morphology mainly presented longitudinal variations,while the seeds had no significant variation patterns.The 15 populations of A.truncatum could be clustered into three groups according to the UPGMA cluster analysis.The multiple variations among and within populations provided insights and guidelines for genetic conservation and utilization of A.truncatum germplasm resources.关键词
元宝枫/种群/种实性状/表型多样性/变异Key words
Acer truncatum/population/fruit and seed traits/phenotypic diversity/variation引用本文复制引用
乔谦,丰震,任红剑,安凯,张林,孙忠奎..元宝枫天然种群种实表型多样性[J].生态学杂志,2017,36(10):2707-2715,9.基金项目
中央财政林业科技推广示范资金项目“元宝枫新品种苗木繁育及推广”([2016] LKT17号)和山东省农业良种工程重大项目‘优良花卉和园林绿化植物新品种选育’([2014]96号)资助. （[2016] LKT17号）
