Image-based methods for phenotyping growth dynamics and fitness components in Arabidopsis thaliana

Plant methods 2018 François Vasseur, Justine Bresson, George Wang, Rebecca Schwab, Detlef Weigel We developed two models to predict plant dry mass and fruit number from the parameters extracted with the analysis of rosette and inflorescence images. Predictive models were trained by sacrificing growing individuals for dry mass estimation, and manually measuring a fraction of… Continue reading Image-based methods for phenotyping growth dynamics and fitness components in Arabidopsis thaliana

Adaptive diversification of growth allometry in the plant Arabidopsis thaliana

Proceedings of the National Academy of Sciences 2018 François Vasseur, Moises Exposito-Alonso, Oscar J Ayala-Garay, George Wang, Brian J Enquist, Denis Vile, Cyrille Violle, Detlef Weigel Are there biological constants unifying phenotypic diversity across scales? Metabolic scaling theory (MST) predicts mathematical regularity and constancy in the allometric scaling of growth rate with body size across… Continue reading Adaptive diversification of growth allometry in the plant Arabidopsis thaliana

A rainfall-manipulation experiment with 517 Arabidopsis thaliana accessions

bioRxiv 2018 Moises Exposito-Alonso, Rocío Gómez Rodríguez, Cristina Barragán, Giovanna Capovilla, Eunyoung Chae, Jane Devos, Ezgi S Dogan, Claudia Friedemann, Caspar Gross, Patricia Lang, Derek Lundberg, Vera Middendorf, Jorge Kageyama, Talia Karasov, Sonja Kersten, Sebastian Petersen, Leily Rabbani, Julian Regalado, Lukas Reinelt, Beth Rowan, Danelle K Seymour, Efthymia Symeonidi, Rebecca Schwab, Diep Thi Ngoc Tran,… Continue reading A rainfall-manipulation experiment with 517 Arabidopsis thaliana accessions

Genomic basis and evolutionary potential for extreme drought adaptation in Arabidopsis thaliana

Nature ecology & evolution 2018 Moises Exposito-Alonso, Francois Vasseur, Wei Ding, George Wang, Hernán A Burbano, Detlef Weigel As Earth is currently experiencing dramatic climate change, it is of critical interest to understand how species will respond to it. The chance of a species withstanding climate change is likely to depend on the diversity within the… Continue reading Genomic basis and evolutionary potential for extreme drought adaptation in Arabidopsis thaliana

Genetic architecture of nonadditive inheritance in Arabidopsis thaliana hybrids

Proceedings of the National Academy of Sciences 2016 Danelle K Seymour, Eunyoung Chae, Dominik G Grimm, Carmen Martín Pizarro, Anette Habring-Müller, François Vasseur, Barbara Rakitsch, Karsten M Borgwardt, Daniel Koenig, Detlef Weigel The ubiquity of nonparental hybrid phenotypes, such as hybrid vigor and hybrid inferiority, has interested biologists for over a century and is of… Continue reading Genetic architecture of nonadditive inheritance in Arabidopsis thaliana hybrids

PHENOPSIS: Quelles évolutions technologiques du premier automate de phénotypage des plantes?

Cahier des Techniques de l'INRA 2016 Myriam Dauzat, Anaëlle Dambreville, Justine Bresson, Denis Vile, Bertrand Muller, Vincent Negre, Garance Koch, François Vasseur, Alexis Bediee, Maxence Desigaux, Denis Fourreau, Christine Granier Afin de répondre aux besoins de phénotypage à haut débit dans le domaine végétal, le LEPSE (Laboratoire d’Ecophysiologie des plantes sous stress environnementaux) et la… Continue reading PHENOPSIS: Quelles évolutions technologiques du premier automate de phénotypage des plantes?

Quantifying spatial heterogeneity of chlorophyll fluorescence during plant growth and in response to water stress

Plant Methods 2015 Justine Bresson, François Vasseur, Myriam Dauzat, Garance Koch, Christine Granier, Denis Vile We developed a method to quantify the dynamics of spatial heterogeneity of photosynthetic efficiency through the distribution-based analysis of Fv/Fm values. The method was applied to Arabidopsis thaliana grown under well-watered and severe water deficit (survival rate of 40%). First,… Continue reading Quantifying spatial heterogeneity of chlorophyll fluorescence during plant growth and in response to water stress