RT Journal Article T1 Genetic and genome-wide transcriptomic analyses identify co- regulation of oxidative response and hormone transcript abundance with vitamin C content in tomato fruit. A1 Lima-Silva, Viviana A1 Rosado, Abel A1 Amorim-Silva, Vitor A1 Muñoz-Mérida, Antonio A1 Pons, Clara A1 Bombarely, Aureliano A1 Trelles, Oswaldo A1 Fernández Muñoz, Rafael A1 Granell, Antonio A1 Valpuesta-Fernández, Victoriano A1 Botella-Mesa, Miguel Ángel K1 Tomates - Genética K1 Tomates - Metabolismo AB L-ascorbic acid (AsA; vitamin C) is essential for all living plants where it functions as the main hydrosoluble antioxidant. It has diverse roles in the regulation of plant cell growth and expansion, photosynthesis, and hormone-regulated processes. AsA is also an essential component of the human diet, being tomato fruit one of the main sources of this vitamin. To identify genes responsible for AsA content in tomato fruit, transcriptomic studies followed by clustering analysis were applied to two groups of fruits with contrasting AsA content. These fruits were identified after AsA profiling of an F8 Recombinant Inbred Line (RIL) population generated from a cross between the domesticated species Solanum lycopersicum and the wild relative Solanum pimpinellifollium.Results here reported indicate that the content of AsA in red tomato fruit from our selected RILs are not correlated with the expression of genes involved in its biosynthesis. On the contrary, the data presented here supports that AsA content in tomato fruit co-regulates with genes involved in hormone signaling and they are dependent on the oxidative status of the fruit. PB BioMed Central YR 2012 FD 2012-05-14 LK https://hdl.handle.net/10630/34667 UL https://hdl.handle.net/10630/34667 LA eng NO Lima-Silva, V., Rosado, A., Amorim-Silva, V. et al. Genetic and genome-wide transcriptomic analyses identify co-regulation of oxidative response and hormone transcript abundance with vitamin C content in tomato fruit. BMC Genomics 13, 187 (2012). https://doi.org/10.1186/1471-2164-13-187 NO This work was supported by the EUSOL Integrated Project (grant no. FOOD–CT–2006–016214), ESPSOL proposal (Fundación Genoma España) and by el Ministerio de Ciencia e Innovación (MICINN), co-financed by the European Regional Development Fund (FEDER) (grant BIO2011-23859). The authors thank Dr. Paola E. Leone and Dr. Atilio Deana for helping in manuscript writing and Sophie Mirabel for technical support during the microarray hybridization. Part of this work was accomplished with help from European Molecular Biology Organization short-term fellowship. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 21 ene 2026