Accelerated Evolution in the Death Galaxy

Details Accelerated Evolution in the Death Galaxy Accelerated Evolution in the Death Galaxy

Mar 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..mara27002a&link_type=abstract

American Physical Society, APS March Meeting 2010, March 15-19,2010, abstract #A27.002

Physics

Scientific paper

We recall 4 main guiding principles of evolution: 1) instability of defections, 2) stress induced non-random mutations, 3) genetic heterogeneity, and 4) fragmented populations. Our previous preliminary experiments have been relatively simple 1-D stress experiments. We are proceeding with 2-D experiments whose design is guided by these principles. Our new experiment we have dubbed the Death Galaxy because of it's use of these design principles. The ``galaxy'' name comes from the fact that the structure is designed as an interconnected array of micro-ecologies, these micro-ecologies are similar to the stars that comprise an astronomical galaxy, and provide the fragmented small populations. A gradient of the antibiotic Cipro is introduced across the galaxy, and we will present results which show how bacterial evolution resulting in resistance to Cipro is accelerated by the physics principles underlying the device.

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