ArticlePlant biotechnology journal2024
Metabolic engineering-induced transcriptome reprogramming of lipid biosynthesis enhances oil composition in oat.
Article in Plant biotechnology journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Oil as a Hindrance to Oat (Foods (Basel, Switzerland) · 2026Review
- Systematic analysis of the Diacylglycerol acyltransferase (DGAT) genes in oat and functional characterazation of AsDGAT2-1 involved in oil accumulation and cold stress tolerance.BMC plant biology · 2026Article
- Characterization ofPlants (Basel, Switzerland) · 2025Article
- Comparative Study of Chemical Compositions and Antioxidant Capacities of Oils Obtained from Sixteen Oat Cultivars in China.Foods (Basel, Switzerland) · 2025Article
- A highly efficient CRISPR-Cas9-based gene-editing system in oat (Avena sativa L.).Plant biotechnology journal · 2025Article
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Authors and funding
7 authors.
Funding
Abstract
The endeavour to elevate the nutritional value of oat (Avena sativa) by altering the oil composition and content positions it as an optimal crop for fostering human health and animal feed. However, optimization of oil traits on oat through conventional breeding is challenging due to its quantitative nature and complexity of the oat genome. We introduced two constructs containing three key genes integral to lipid biosynthesis and/or regulatory pathways from Arabidopsis (AtWRI1 and AtDGAT1) and Sesame (SiOLEOSIN) into the oat cultivar 'Park' to modify the fatty acid composition. Four homozygous transgenic lines were generated with a transformation frequency of 7%. The expression of these introduced genes initiated a comprehensive transcriptional reprogramming in oat grains and leaves. Notably, endogenous DGAT, WRI1 and OLEOSIN genes experienced upregulation, while genes associated with fatty acid biosynthesis, such as KASII, SACPD and FAD2, displayed antagonistic expression patterns between oat grains and leaves. Transcriptomic analyses highlighted significant differential gene expression, particularly enriched in lipid metabolism. Comparing the transgenic oat plants with the wild type, we observed a remarkable increase of up to 34% in oleic acid content in oat grains. Furthermore, there were marked improvements in the total oil content in oat leaves, as well as primary metabolites changes in both oat grains and leaves, while maintaining homeostasis in the transgenic oat plants. These findings underscore the effectiveness of genetic engineering in manipulating oat oil composition and content, offering promising implications for human consumption and animal feeding through oat crop improvement programmes.
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