ArticlePlant cell reports2023
Molecular characterization of oleosin genes in Cyperus esculentus, a Cyperaceae plant producing oil in underground tubers.
Article in Plant cell reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
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13 citing papers in PubMed, 16 citations in OpenAlex.
- The chromosome-level genomes of twoHorticulture research · 2026Article
- Characterization ofPlants (Basel, Switzerland) · 2025Article
- The transcription factor CeWRI3 functions in TAG accumulation through activating CeOLE2 in Cyperus esculentus.Plant cell reports · 2025Article
- Insights into membrane-bound fatty acid desaturase genes in tigernut (Cyperus esculentus L.), an oil-rich tuber plant in Cyperaceae.BMC plant biology · 2025Article
- Integrative Analysis Provides Insights into Genes Encoding LEA_5 Domain-Containing Proteins in Tigernut (Plants (Basel, Switzerland) · 2025Article
- Insights into the Stearoyl-Acyl Carrier Protein Desaturase (SAD) Family in Tigernut (Plants (Basel, Switzerland) · 2025Article
- The Application of Near-Infrared Spectroscopy Combined with Chemometrics in the Determination of the Nutrient Composition in ChineseFoods (Basel, Switzerland) · 2025Article
- Understanding the triacylglycerol-based carbon anabolic differentiation in Cyperus esculentus and Cyperus rotundus developing tubers via transcriptomic and metabolomic approaches.BMC plant biology · 2024Article
- Exploiting lipid droplet metabolic pathway to foster lipid production: oleosin in focus.Plant cell reports · 2024Review
- Article
- Insights into Genes Encoding LEA_1 Domain-Containing Proteins inPlants (Basel, Switzerland) · 2024Article
- TIP aquaporins in Cyperus esculentus: genome-wide identification, expression profiles, subcellular localizations, and interaction patterns.BMC plant biology · 2024Article
- Integrative Analysis ofPlants (Basel, Switzerland) · 2024Article
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Authors and funding
8 authors at 1 institution in 1 country.
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Abstract
key messageCeOLE genes exhibit a tuber-predominant expression pattern and their mRNA/protein abundances are positively correlated with oil accumulation during tuber development. Overexpression could significantly increase the oil content of tobacco leaves. Oleosins (OLEs) are abundant structural proteins of lipid droplets (LDs) that function in LD formation and stabilization in seeds of oil crops. However, little information is available on their roles in vegetative tissues. In this study, we present the first genome-wide characterization of the oleosin family in tigernut (Cyperus esculentus L., Cyperaceae), a rare example accumulating high amounts of oil in underground tubers. Six members identified represent three previously defined clades (i.e. U, SL and SH) or six out of seven orthogroups (i.e. U, SL1, SL2, and SH1-3) proposed in this study. Comparative genomics analysis reveals that lineage-specific expansion of Clades SL and SH was contributed by whole-genome duplication and dispersed duplication, respectively. Moreover, presence of SL2 and SH3 in Juncus effuses implies their appearance sometime before Cyperaceae-Juncaceae divergence, whereas SH2 appears to be Cyperaceae specific. Expression analysis showed that CeOLE genes exhibit a tuber-predominant expression pattern and transcript levels are considerably more abundant than homologs in the close relative Cyperus rotundus. Moreover, CeOLE mRNA and protein abundances were shown to positively correlate with oil accumulation during tuber development. Additionally, two dominant isoforms (i.e. CeOLE2 and -5) were shown to locate in LDs as well as the endoplasmic reticulum of tobacco (Nicotiana benthamiana) leaves, and are more likely to function in homo and heteromultimers. Furthermore, overexpression of CeOLE2 and -5 in tobacco leaves could significantly increase the oil content, supporting their roles in oil accumulation. These findings provide insights into lineage-specific family evolution and putative roles of CeOLE genes in oil accumulation of vegetative tissues, which facilitate further genetic improvement for tigernut.
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