Objetivo "Higher plants respond to a change in light quality -indicative of competition from other plants- by eliciting a range of adaptations summarized under the term Shade Avoidance Syndrome (SAS). These action responses include e.g. increased elongation of organs (e.g. hypocotyls, stems), a decrease in leaf surface, a more erect leaf position, rapid changes in gene expression and an accelerated transition to flowering. Our molecular understanding of SAS mostly comes from studies in Arabidopsis thaliana but numerous questions remain unanswered. Most SAS studies were performed in young seedlings but the role of many SAS regulators in more adult plants remains poorly characterized. In order to extent our understanding of SAS the following issues are addressed in the proposed project:(i) SAS traits will be measured (phenotyped) on rosette stage plants using a custom built high-throughput phenotyping device (Scanalyzer HTS) as well as in young seedlings.(ii) The SAS includes a number of physiological adaptations in different organs and different growth stages. To determine the extent to which regulators of the SAS are involved in shade avoidance we will phenotype selected mutants with a defective response to shade such as pif4, pif5, and sav3.(iii) It has been proposed that PIF4/PIF5 and SAV3 act in different pathways. To test this hypothesis we will phenotype pif4, pif5, sav3 and associated double/triple mutants.(iv) Natural variation in shade avoidance will be assessed by phenotyping a collection of field-collected Arabidopsis accessions(v) SAS traits measured in those accessions will further be exploited by a Genome-wide association (GWA) study to identify genetic loci that control SAS and may underlie adaptation to their local environment. In consequence, the GWA could lead to unravel the function of known and novel regulators of SAS, which in turn should contribute to a better understanding of the SAS regulatory network in different organs and developmental stages." Programa(s) FP7-PEOPLE - Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Tema(s) FP7-PEOPLE-2010-IEF - Marie-Curie Action: "Intra-European fellowships for career development" Convocatoria de propuestas FP7-PEOPLE-2010-IEF Consulte otros proyectos de esta convocatoria Régimen de financiación MC-IEF - Intra-European Fellowships (IEF) Coordinador UNIVERSITE DE LAUSANNE Aportación de la UE € 185 528,80 Dirección QUARTIER UNIL CENTRE - BATIMENT UNICENTRE 1015 LAUSANNE Suiza Ver en el mapa Región Schweiz/Suisse/Svizzera Région lémanique Vaud Tipo de actividad Higher or Secondary Education Establishments Contacto administrativo Nathalie Clerc (Ms.) Enlaces Contactar con la organización Opens in new window Sitio web Opens in new window Coste total Sin datos
