IUB Lectures, Meetings, and Conferences

Center for Bioinformatics Research Talk - Peter L. Ralph, University of Southern California

 

Center for Bioinformatics Research Talk

Speaker:   Peter Ralph, Computational Biology and Bioinformatics, The University of Southern California

Where:  Oak Room, Indiana Memorial Union

Topic:  Tools for understanding the geography of adaptation

Abstract:  I will talk about several theoretical results of how species adapt in continuous geography, and one descriptive tool designed for use on data.   I aim to answer the following questions: When does a species faced with a new selective pressure adapt as a unit, and when do different solutions to the same evolutionary problem arise in parallel in different parts of the range?  What about the case of a patchy environment: i.e. when should local adaptations be shared versus heterogeneous? How could we distinguish the two? These questions have surprisingly elegant answers, thanks to stochastic tools going back to Fisher and Kolmogorov.  I will also describe an inference method that infers relative strengths of simple geographic distance, environmental differences, or other (e.g. resistance) distances.  The latter is implemented as an open-source R module (BEDASSLE, Bradburd, Ralph and Coop).

Biography:   Peter Ralph did his PhD working on probability and statistics at UC Berkeley with Steve Evans, followed by a postdoc with Graham Coop at UC Davis.  He is now faculty in the Computational Biology and Bioinformatics group at the University of Southern California.

Poster

Start
Thursday September 11, 2014 04:00 PM
End
Thursday September 11, 2014 05:00 PM
Location
Indiana Memorial Union (Union Building)
Contact
Mike Lynch
Website
http://www.soic.indiana.edu/research/centers/bioinformatics.php
Cost
Admission Free
Contact Email
milynch@indiana.edu
view calendar