2026-06-01T04:34:26Zhttps://riuma.uma.es/rest/oai/request

oai:riuma.uma.es:10630/236002026-02-03T11:19:27Zcom_10630_2254col_10630_37953

00925njm 22002777a 4500 dc Vallarino Castro, José G. author Merchante-Berg, Catharina author Sánchez-Sevilla, José F author De Luis Balaguer, María Angels author Pott, Delphine author Ariza Fernández, María Teresa author Casañal, Ana author Posé-Padilla, David author Vioque, Amalia author Amaya Saavedra, Iraida author Willmitzer, Lothar author Solano, Roberto author Sozzani, Rosangela author Fernie, Alisdair R author Botella-Mesa, Miguel Ángel author Giovannoni, James J. author Valpuesta-Fernández, Victoriano author Osorio-Algar, Sonia author 2019-09-18 FaMADS9 is the strawberry (Fragaria x ananassa) gene that exhibits the highest homology to the tomato (Solanum lycopersicum) RIN gene. Transgenic lines were obtained in which FaMADS9 was silenced. The fruits of these lines did not show differences in basic parameters, such as fruit firmness or colour, but exhibited lower Brix values in three of the four independent lines. The gene ontology MapMan category that was most enriched among the differentially expressed genes in the receptacles at the white stage corresponded to the regulation of transcription, including a high percentage of transcription factors and regulatory proteins associated with auxin action. In contrast, the most enriched categories at the red stage were transport, lipid metabolism and cell wall. Metabolomic analysis of the receptacles of the transformed fruits identified significant changes in the content of maltose, galactonic acid-1,4-lactone, proanthocyanidins and flavonols at the green/white stage, while isomaltose, anthocyanins and cuticular wax metabolism were the most affected at the red stage. Among the regulatory genes that were differentially expressed in the transgenic receptacles were several genes previously linked to flavonoid metabolism, such as MYB10, DIV, ZFN1, ZFN2, GT2, and GT5, or associated with the action of hormones, such as abscisic acid, SHP, ASR, GTE7 and SnRK2.7. The inference of a gene regulatory network, based on a dynamic Bayesian approach, among the genes differentially expressed in the transgenic receptacles at the white and red stages, identified the genes KAN1, DIV, ZFN2 and GTE7 as putative targets of FaMADS9. A MADS9-specific CArG box was identified in the promoters of these genes. https://hdl.handle.net/10630/23600 https://doi.org/10.1111/pbi.13257 Fresas Characterizing the involvement of FaMADS9 in the regulation of strawberry fruit receptacle development