BUSCADOR RECOLECTA

Arabidopsis_data_279accessions_8jan14, The role that different life-history traits may have in the process of adaptation caused by divergent selection can be assessed by using extensive collections of geographically-explicit populations. This is because adaptive phenotypic variation shifts gradually across space as a result of the geographic patterns of variation in environmental selective pressures. Hence, large-scale experiments are needed to identify relevant adaptive life-history traits as well as their relationships with putative selective agents. We conducted a field experiment with 279 geo-referenced accessions of the annual plant Arabidopsis thaliana collected across a native region of its distribution range, the Iberian Peninsula. We quantified variation in life-history traits throughout the entire life cycle. We built a geographic information system to generate an environmental data set encompassing climate, vegetation and soil data. We analysed the spatial autocorrelation patterns of environmental variables and life-history traits, as well as the relationship between environmental and phenotypic data. Almost all environmental variables were significantly spatially autocorrelated. By contrast, only two life-history traits, seed weight and flowering time, exhibited significant spatial autocorrelation. Flowering time, and to a lower extent seed weight, were the life-history traits with the highest significant correlation coefficients with environmental factors, in particular with annual mean temperature. In general, individual fitness was higher for accessions with more vigorous seed germination, higher recruitment and later flowering times. Variation in flowering time mediated by temperature appears to be the main life-history trait by which A. thaliana adjusts its life history to the varying Iberian environmental conditions. The use of extensive geographically-explicit data sets obtained from field experiments represents a powerful approach to unravel adaptive patterns of variation. In a context of current global warming, geographically-explicit approaches, evaluating the match between organisms and the environments where they live, may contribute to better assess and predict the consequences of global warming., Peer reviewed

Plano general, en la primera fila de izquierda a derecha, Philippe Nourry, periodista francés; Aline Schulman, profesora francesa y traductora de español; Dolores Beauvallet, profesora de español e inspectora general del idioma en el Ministère de l'Education Nationale; Abraham Bengio, consultor en políticas culturales y lingüísticas de la Région Rhône-Alpes; José Manuel García-Margallo y Marfil, ministro de Asuntos Exteriores y Cooperación; Felipe VI, rey de España; Letizia, reina consorte de Felipe VI, rey de España; Victor García de la Concha, director del Instituto Cervantes; Nancy Berthier, directora del Centre d’Études Hispaniques de la Université de la Sorbonne y Ahmed Haderbache, presidente de la Association Française des Professeurs d’Espagnol (AFPE). En la segunda fila, de izquierda a derecha, Jean Paul Étienvre, filólogo, exdirector de la Casa de Velázquez; Agustín Redondo, filólogo español; Benoit Pellistrandi, historiador y profesor de historia del Lycée Condorcet; Jean Canavaggio,hispanista; Jean-Marc Delauny, historiador; Joseph Pérez, historiador y profesor emérito en la Université de Bordeaux; Edmond Raillard, profesor en la Université de Grenoble; Manuel Tuñón de Lara, profesor en la Université de Bordeaux ; Bartolomé Bennassar, historiador y profesor emérito de la Université de Toulouse- Le Mirail; y Juan Manuel Bonet Planes, director del Instituto Cervantes de París, en la biblioteca Octavio Paz del Instituto Cervantes de París.

Plano americano, en la mesa de izquierda a derecha, Helena Pimenta, dramaturga, directora de escena y directora de la Compañía Nacional de Teatro Clásico (CNTC); y Beatriz Hernanz Angulo, directora de Cultura del Instituto Cervantes, durante la charla «Cervantes a escena» dentro del ciclo de conferencias «Lecturas y relecturas. Ecos del Quijote».