Insights Into Walnut Lipid Metabolism From Metabolome and Transcriptome Analysis

Walnut oil is an excellent source of essential fatty acids. Systematic evaluation of walnut lipids has significance for the development of the nutritional and functional value of walnut. Ultra-performance liquid chromatography/Orbitrap high-resolution mass spectrometry (UHPLC-Orbitrap HRMS) was used...

Full description

Saved in:
Bibliographic Details
Published inFrontiers in genetics Vol. 12; p. 715731
Main Authors Yan, Suxian, Wang, Xingsu, Yang, Chenkang, Wang, Junyou, Wang, Ying, Wu, Bangbang, Qiao, Ling, Zhao, Jiajia, Mohammad, Pourkheirandish, Zheng, Xingwei, Xu, Jianguo, Zhi, Huming, Zheng, Jun
Format Journal Article
LanguageEnglish
Published Frontiers Media S.A 03.09.2021
Subjects
Genetics
lipidomic
metabolism
transcriptome
UHPLC-Orbitrap HRMS
walnut
Online AccessGet full text

Cover

More Information
Summary:Walnut oil is an excellent source of essential fatty acids. Systematic evaluation of walnut lipids has significance for the development of the nutritional and functional value of walnut. Ultra-performance liquid chromatography/Orbitrap high-resolution mass spectrometry (UHPLC-Orbitrap HRMS) was used to characterize the lipids of walnut. A total of 525 lipids were detected and triacylglycerols (TG) (18:2/18:2/18:3) and diacylglycerols (DG) (18:2/18:2) were the main glycerolipids present. Essential fatty acids, such as linoleic acid and linolenic acid, were the main DG and TG fatty acid chains. Many types of phospholipids were observed with phosphatidic acid being present in the highest concentration (5.58%). Using a combination of metabolome and transcriptome analysis, the present study mapped the main lipid metabolism pathway in walnut. These results may provide a theoretical basis for further study and specific gene targets to enable the development of walnut with increased oil content and modified fatty acid composition.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
These authors have contributed equally to this work and share first authorship
Reviewed by: Jieqin Li, Anhui University of Science and Technology, China; Caiguo Tang, Hefei Institutes of Physical Science (CAS), China; Bin Zhang, Temasek Life Sciences Laboratory, Singapore
This article was submitted to Plant Genomics, a section of the journal Frontiers in Genetics
Edited by: Shang-Qian Xie, Hainan University, China
ISSN:1664-8021
1664-8021
DOI:10.3389/fgene.2021.715731