Pascal-Antoine Christin

Research Fellow
Animal and Plant Sciences
University of Sheffield
United Kingdom

Scientist Plant Sciences
Biography

Royal Society Research Fellow, University of Sheffield (2014-2018) Marie Curie Research Fellow, Brown University, RI, USA and University of Sheffield (2011-2013) Swiss NSF Research Fellow, Brown University, RI, USA (2010) First Assistant, University of Lausanne, Switzerland (2009) PhD, University of Lausanne, Switzerland (2008) MSc, University of Lausanne, Switzerland (2005)

Research Intrest

Molecular evolution Phylogenetics Plant evolution Using phylogenetic frameworks, my research investigates the mechanisms that led to the functional diversity of plants. I combine analyses of gene sequences, genomes, transcriptomes, and ecological and morphological traits to address questions of importance for evolutionary biology in general: How are complex traits assembled during evolution? What determines the likelihood of a given lineage evolving novel adaptations? How do environmental changes drive the evolution of novel traits? As a study system, I use mainly the evolution of C4 photosynthesis in grasses and other groups of plants. This complex adaptation confers a higher productivity in conditions of CO2 depletion. Despite its complexity, it evolved more than 66 times in some groups of flowering plants through the co-option of genes already present in the C3 ancestors. It constitutes a very attractive study system to address questions ranging from the functional adaptation of specific genes to the emergence of tropical grasslands over millions of years.

List of Publications
Schlüter U, Bräutigam A, Gowik U, Melzer M, Christin P-A, Kurz S, et al. Photosynthesis in C3–C4intermediateMoricandiaspecies. Journal of Experimental Botany [Internet]. Oxford University Press (OUP); 2016 Oct 19;68(2):191–206.
Christin P-A. Traces of strong selective pressures in the genomes of C4grasses. Journal of Experimental Botany [Internet]. Oxford University Press (OUP); 2017 Jan;68(2):103–5.
Preece C, Livarda A, Christin P-A, Wallace M, Martin G, Charles M, et al. How did the domestication of Fertile Crescent grain crops increase their yields? Brody A, editor. Functional Ecology [Internet]. Wiley-Blackwell; 2016 Oct 3;31(2):387–97.
Dunning LT, Lundgren MR, Moreno-Villena JJ, Namaganda M, Edwards EJ, Nosil P, et al. Introgression and repeated co-option facilitated the recurrent emergence of C4 photosynthesis among close relatives. Evolution [Internet].