Genome-Wide Mapping of Histone H3 Lysine 4 Trimethylation (H3K4me3) and Its Involvement in Fatty Acid Biosynthesis in Sunflower Developing Seeds
2021
Moreno-Pérez, Antonio J. | Santos-Pereira, José M. | Martins-Noguerol, Raquel | DeAndrés-Gil, Cristina | Troncoso-Ponce, M Adrián | Venegas-Calerón, Mónica | Sánchez, Rosario | Garcés, Rafael | Salas, Joaquín J. | Tena, Juan J. | Martínez Force, Enrique
Histone modifications are of paramount importance during plant development. Investigating chromatin remodeling in developing oilseeds sheds light on the molecular mechanisms controlling fatty acid metabolism and facilitates the identification of new functional regions in oil crop genomes. The present study characterizes the epigenetic modifications H3K4me3 in relationship with the expression of fatty acid-related genes and transcription factors in developing sunflower seeds. Two master transcriptional regulators identified in this analysis, VIV1 (homologous to Arabidopsis ABI3) and FUS3, cooperate in the regulation of WRINKLED 1, a transcriptional factor regulating glycolysis, and fatty acid synthesis in developing oilseeds.
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