Abstracts (first author)

Talk 

Putting social microbes on the map: a phylogenomics approach

Author(s): Wielgoss S, Velicer GJ

Summary:

Careful analysis of natural genetic variation is crucial for understanding the processes driving the evolution of phenotypic traits in natural populations of microorganisms, including social traits. These processes include both those that generate new genetic variation (mutation, recombination, horizontal gene transfer) and those that determine the dynamics and ultimate fate of such variation (selection and drift). However, our understanding of natural microbial genetic diversity and how it relates to phenotypic divergence is extremely limited, including for social traits such as those exhibited by the myxobacteria. Based on multi-locus sequence types (MLST), several recent studies have started to characterize the population structure and spatial distribution of the genetic variance in natural isolates of a prominent member of this class of social delta-proteobacteria, Myxococcus xanthus. Here, we extend this work much further by applying a phylogenomics approach that aims at putting microbial genomes on a map spanning metric scales as disparate as 10^-9 m (fruiting bodies) up to 10^7 m (continents). Given the geographic information, we strive to disentangle and quantify the strength of the various evolutionary forces and how these shape the biogeography in this social model organism in the wild.


Video


Contacts

Chairman: Octávio S. Paulo
Tel: 00 351 217500614 direct
Tel: 00 351 217500000 ext22359
Fax: 00 351 217500028
email: mail@eseb2013.com

Address

XIV Congress of the European Society for Evolutionary Biology

Organization Team
Department of Animal Biology (DBA)
Faculty of Sciences of the University of Lisbon
P-1749-016 Lisbon
Portugal

Website

Computational Biology & Population Genomics Group 
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