Abstract
Dolichols (Dols), ubiquitous components of living organisms, are indispensable for cell survival. In plants, as well as other eukaryotes, Dols are crucial for post-translational protein glycosylation, aberration of which leads to fatal metabolic disorders in humans and male sterility in plants. Until now, the mechanisms underlying Dol accumulation remain elusive. In this study, we have analysed the natural variation of the accumulation of Dols and six other isoprenoids among more than 120 Arabidopsis thaliana accessions. Subsequently, by combining QTL and GWAS approaches, we have identified several candidate genes involved in the accumulation of Dols, polyprenols, plastoquinone and phytosterols. The role of two genes implicated in the accumulation of major Dols in Arabidopsis—the AT2G17570 gene encoding a long searched for cis-prenyltransferase (CPT3) and the AT1G52460 gene encoding an α/β-hydrolase—is experimentally confirmed. These data will help to generate Dol-enriched plants which might serve as a remedy for Dol-deficiency in humans.
Original language | English |
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Pages (from-to) | 479-495 |
Number of pages | 17 |
Journal | Plant, Cell and Environment |
Volume | 45 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2022 Feb |
Bibliographical note
Funding Information:This study was supported by grants from the National Science Centre of Poland [UMO‐2014/15/N/NZ3/04316] (Katarzyna Gawarecka), [UMO‐2018/29/B/NZ3/01033] (Ewa Swiezewska), and [UMO‐2014/15/B/NZ2/01073] (Anna Ihnatowicz), and the National Research Foundation (NRF) of Korea [NRF—2017R1A2B3009624] (Ji Hoon Ahn). We would like to express our gratitude to Professor Maarten Koornneef for providing the AI‐RILs seeds used in this study. We also would like to thank Dr. Agata Lipko for initial characterisation of mutant lines. Dr. Marta Hoffman‐Sommer is kindly acknowledged for help with preparation of the manuscript.
Publisher Copyright:
© 2021 The Authors. Plant, Cell & Environment published by John Wiley & Sons Ltd.
ASJC Scopus subject areas
- Physiology
- Plant Science