He Xing, Lu Tian-Quan, Li Jiang-Ying, Mao Ping, Zhang Li, Zheng Guo-Wei, Tian Bo
Key Laboratory of Sustainable Utilization of Tropical Plant Resources, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, 88 Xuefu Road, Kunming, 650223, China.
University of Chinese Academy of Sciences, Beijing, 100049, China.
Plant Divers. 2022 Jan 25;44(3):308-315. doi: 10.1016/j.pld.2022.01.004. eCollection 2022 May.
Nervonic acid (NA) is a very-long-chain monounsaturated fatty acid with pharmaceutical and nutraceutical functions that plays an important role in treating several neurological disorders. One major source of NA is plant seed oil. Here we report fatty acid profiles of seeds and germplasm diversity of six plant species, including three woody plants with high amounts of NA-enriched seed oil, , , and . had the largest seed (average 7.40 g single seed), highest oil content (58.71%), and highest NA level (42.22%). The germplasm diversity of is associated with its habitat but not elevation. Seeds of contained higher NA levels (28.41%) than (21.77%) but contained a significantly higher oil content (29.22%) and seed yield. germplasm varied among populations, with one population having seeds with high oil content (22.63%) and NA level (37.78%).Although grow naturally at a range of elevations, no significant differences were detected between populations. These results suggest that and have greater potential as a source of NA, which will contribute to constructing a germplasm resource nursery and establishing a selection and breeding program to improve the development of NA-enriched plants.
神经酸（NA）是一种具有药物和营养功能的超长链单不饱和脂肪酸，在治疗多种神经疾病中发挥着重要作用。NA的一个主要来源是植物种子油。在此，我们报告了六种植物的种子脂肪酸谱和种质多样性，其中包括三种富含NA种子油的木本植物，即[具体植物1]、[具体植物2]和[具体植物3]。[具体植物1]的种子最大（单粒种子平均7.40克），含油量最高（58.71%），NA水平最高（42.22%）。[具体植物2]的种质多样性与其栖息地有关，而与海拔无关。[具体植物2]种子的NA水平（28.41%）高于[具体植物3]（21.77%），但[具体植物3]的含油量（29.22%）和种子产量显著更高。[具体植物3]的种质在不同种群间存在差异，其中一个种群的种子含油量高（22.63%）且NA水平高（37.78%）。尽管[具体植物4]在一系列海拔高度自然生长，但未检测到其种群间存在显著差异。这些结果表明，[具体植物1]和[具体植物2]作为NA来源具有更大潜力，这将有助于构建种质资源圃并建立选育计划，以促进富含NA植物的开发。
