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Combined Transcriptomic and Metabolomic Approach Revealed a Relationship between Light Control, Photoprotective Pigments, and Lipid Biosynthesis in Olives

TitleCombined Transcriptomic and Metabolomic Approach Revealed a Relationship between Light Control, Photoprotective Pigments, and Lipid Biosynthesis in Olives
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2023
AuthorsSirangelo, Tiziana Maria, Forgione Ivano, Zelasco Samanta, Benincasa Cinzia, Perri Enzo, Vendramin Elisa, Angilè Federica, Fanizzi Francesco Paolo, Sunseri Francesco, Salimonti Amelia, and Carbone Fabrizio
JournalInternational Journal of Molecular Sciences
Volume24
Type of ArticleArticle
ISSN16616596
Abstract

Olive possesses excellent nutritional and economic values for its main healthy products. Among them, a high content of antioxidant compounds, balanced during the ripening process, are produced under genetic and environmental control, resulting in high variability among cultivars. The genes involved in these complex pathways are mainly known, but despite many studies which indicated the key role of light quality and quantity for the synthesis of many metabolites in plants, limited information on these topics is available in olive. We carried out a targeted gene expression profiling in three olive cultivars, Cellina di Nardò, Ruveia, and Salella, which were selected for their contrasting oleic acid and phenolic content. The –omics combined approach revealed a direct correlation between a higher expression of the main flavonoid genes and the high content of these metabolites in ‘Cellina di Nardò’. Furthermore, it confirmed the key role of FAD2-2 in the linoleic acid biosynthesis. More interestingly, in all the comparisons, a co-regulation of genes involved in photoperception and circadian clock machinery suggests a key role of light in orchestrating the regulation of these pathways in olive. Therefore, the identified genes in our analyses might represent a useful tool to support olive breeding, although further investigations are needed. © 2023 by the authors.

Notes

Cited by: 2; All Open Access, Gold Open Access, Green Open Access

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85174718620&doi=10.3390%2fijms241914448&partnerID=40&md5=dc1951a6cb2e9af7206a218677a109fb
DOI10.3390/ijms241914448
Citation KeySirangelo2023