"Phylogenetics of C4 photosynthesis: Evolvability and genetic constraints"
- 11/15/2012 |
4:00 PM – 5:00 PM
Location: Druckenmiller Hall, Room 020
Event Type: Seminar
Pascal-Antoine Christin, Brown University, Providence RI
I am generally interested in the genetic mechanisms that led organisms (and more specifically plants) to acquire new adaptive traits during the course of evolution. I appreciate all the methodological approaches that can address this question, and especially population genetics and phylogenetics. During my PhD studies, I adopted the evolution of C4 photosynthesis in the grass family (Poaceae) as a study system to explore numerous phylogeny-based issues, including the number and timing of independent C4 origins, the genetic basis of these convergent evolutions and the effect of the genetic background on the possibility of acquiring C4 photosynthesis. My projects in the Edwards lab will extend these investigations to larger taxonomic scales and other photosynthetic pathways (in particular CAM) to gain insights into the factors that increased the evolvability of complex traits during the diversification of plants.