W627
The Butterfly Plant Arms-Race Escalated via Gene and Genome Duplications

Date: Sunday, January 12, 2014
Time: 10:50 AM
Room: Pacific Salon 2
Patrick Edger , University of California, Berkeley, Berkeley,, CA
H.M. Heidel-Fischer , Max Planck Institute for Chemical Ecology
Michaël Bekaert , Institute of Aquaculture, University of Stirling, Stirling, United Kingdom
Adrian Platts , McGill University, Montreal, QC, Canada
Josh Der , Penn State University, University Park, PA
Kathleen M. Greenham , Dartmouth College, Hanover, NH
Gavin Conant , Division of Animal Sciences, University of Missouri, Columbia, MO
Michael S. Barker , University of Arizona, Tucson, AZ
M. Eric Schranz , Wageningen University and Research, Wageningen, Netherlands
Claude dePamphilis , Penn State University, University Park, PA
Stephen I. Wright , University of Toronto, Toronto, ON, Canada
Thomas E. Bureau , McGill University, Montreal, QC, Canada
G. Glöcknerb , Leibniz Institute for Age Research
Mathieu Blanchette , McGill University, Montreal, QC, Canada
Jocelyn Hall , University of Alberta
Ann Smithson , The University of Western Australia
Johannes A. Hofberger , Wageningen University, WAGENINGEN, Netherlands
Michelle Tang , University of Missouri - Columbia
Eric Kenneth Wafula , Penn State University, University Park, PA
N. Wahlberg , Max Planck Institute for Chemical Ecology
D.G. Heckel , Max Planck Institute for Chemical Ecology
Tao Shi , University of Arizona
Heiko Vogel , MPI for Chemical Ecology, Jena, Germany
Chris Wheat , Stockholm University
J. Chris Pires , University of Missouri, Columbia, MO
Diffuse coevolutionary interactions are thought to have driven the diversification of much of the life on Earth (Darwin 1854) and involve the evolution of key innovations (Ehrlich and Raven 1964) that may escalate in their complexity over time due to ‘arms-race’ dynamics between the interacting parties. However, the genetic basis of key innovations is poorly understood, and the tempo and mode of their evolution is unstudied on a genomic scale. Here we present evidence of escalation on a genomic scale for both sides of an ancient coevolutionary interaction, finding that interactions were facilitated by both local (i.e. tandem) and whole genome duplication events.
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