Analysis and evaluation of oil content in seed kernel and fatty acid composition of Acer truncatum from different populations
In order to investigate the degree of variation among different populations of Acer truncatum and to screen for good germplasm resources,A.truncatum populations from 12 regions of Shandong,Hebei,Shaanxi,Jiangsu and Anhui were analyzed and evaluated.Firstly,the oil content in seed kernel and fatty acid composition were determined.Then variation analysis,correlation analysis,and cluster analysis were performed,and a comprehensive evaluation was conducted using principal component analysis and membership function values.The results showed that the average oil content in seed kernels of the 12 regions was 30.44％,with a high degree of genetic variation.The average contents of the major fatty acid components were as follows:linoleic acid(29.80％)＞oleic acid(25.06％)＞erucic acid(18.76％)＞eicosaenoic acid(8.62％)＞nervonic acid(7.37％)＞palmitic acid(4.75％)＞stearic acid(2.34％)＞α-linolenic acid(1.45％),and the coefficients of variation of nervonic acid(8.38％),stearic acid(11.10％)and α-linolenic acid(17.08％)were higher.The average coefficients of variation of oil content in seed kernel and various main fatty acid from Haiyang,Shandong(12.59％),Tai'an,Shandong(11.22％)and Jinan,Shandong(10.36％)were higher.Analysis of variance showed that there were significant differences in the oil content in seed kernel and various main fatty acids among populations.There was no significant correlation between oil content in seed kernel and geographical factors,and the correlations between major fatty acid components and temperature,precipitation and frost-free period were high.Cluster analysis classified the A.truncatum from 12 regions into three clusters.The comprehensive evaluation concluded that A.truncatum in North China was more valuable for breeding.In summary,the oil content in seed kernel and fatty acid content of various populations of A.truncatum have a high degree of variability,which can be used as the material basis for screening the excellent germplasm resources.
Acer truncatumoil content in seed kernelfatty acidnervonic acid
万方数据
维普
