文献类型：期刊文献

英文题名：Genetic and agro-climatic variability in seed fatty acid profiles of Akebia trifoliata (Lardizabalaceae) in China

作者：Su, Shang[1] Wu, Jie[2] Peng, Xiangyong[1,3] Li, Bin[1] Li, Zhenjian[1] Wang, Wei[1] Ni, Jianwei[1] Xu, Xinqiao[1]

第一作者：苏上

通信作者：Xu, XQ[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Key Lab Tree Breeding & Cultivat, Natl Forestry & Grassland Adm, Beijing 100091, Peoples R China;[2]Chinese Acad Sci, Shenzhen Inst Adv Technol, Shenzhen 518055, Peoples R China;[3]Qufu Normal Univ, Sch Life & Sci, Qufu 273165, Shandong, Peoples R China

年份：2021

卷号：102

外文期刊名：JOURNAL OF FOOD COMPOSITION AND ANALYSIS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000687397700015)】；

基金：This study was supported by the Fund of Key Laboratory of Forest Cultivation (grant No. ZDRIF201711). We thank Plant Science Facility of the Institute of Botany, Chinese Academy of Sciences for their excellent technical assistance in GC-MS analysis of FAs.

语种：英文

外文关键词：Seed; Oil; GC-MS; Oleic acid; Latitude; Temperature

摘要：This study first systematically investigated the differences and correlations of seed oil content, fatty acid (FA) composition and regional agro-climate conditions of Akebia trifoliata from 25 representative distribution areas throughout China. A. trifoliata seeds were rich in oil (30.2 %-48.8 %), but significant (P < 0.01) variations were detected among their FA profiles. Ten major FAs, dominated by oleic acid (OA, 155.9-261.5 mg g(-1), 36.6 %-45.2 %), linoleic acid (LA, 113.8-156.4 mg g(-1), 23.5 %-30.8 %) and palmitic acid (PA, 101.8-149.1 mg g(-1), 20.3 %- 25.7 %), were detected and quantified by GC-MS. Noticeably, their ratios of saturated: monounsaturated: polyunsaturated FAs were 1:1.5:1, which was in line with the World Health Organization's recommendation. Latitude, temperature and moisture were the core factors affecting oil accumulation in A. trifoliata. Opposite to PA and LA, the OA and oil content were strongly negatively correlated with high temperature and precipitation, and were higher in northern and eastern seeds. According to the results of correlation and cluster analysis, A. trifoliata germplasms and agro-climate characters of six regions (from cluster III) around latitude 35 degrees N, where were much colder and drier, and with larger diurnal temperature fluctuations than other regions, were more desirable for commercial cultivation of A. trifoliata for oil processing and for breeding of improved cultivars.