In:
Frontiers in Genetics, Frontiers Media SA, Vol. 12 ( 2021-9-3)
Abstract:
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.
Type of Medium:
Online Resource
ISSN:
1664-8021
DOI:
10.3389/fgene.2021.715731
DOI:
10.3389/fgene.2021.715731.s001
DOI:
10.3389/fgene.2021.715731.s002
DOI:
10.3389/fgene.2021.715731.s003
DOI:
10.3389/fgene.2021.715731.s004
DOI:
10.3389/fgene.2021.715731.s005
DOI:
10.3389/fgene.2021.715731.s006
Language:
Unknown
Publisher:
Frontiers Media SA
Publication Date:
2021
detail.hit.zdb_id:
2606823-0
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