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- Title
Constraints on microbial metabolism drive evolutionary diversification in homogeneous environments.
- Authors
Gudelj, I; Beardmore, R E; Arkin, S S; MacLean, R C
- Abstract
Understanding the evolution of microbial diversity is an important and current problem in evolutionary ecology. In this paper, we investigated the role of two established biochemical trade-offs in microbial diversification using a model that connects ecological and evolutionary processes with fundamental aspects of biochemistry. The trade-offs that we investigated are as follows:(1) a trade-off between the rate and affinity of substrate transport; and (2) a trade-off between the rate and yield of ATP production. Our model shows that these biochemical trade-offs can drive evolutionary diversification under the simplest possible ecological conditions: a homogeneous environment containing a single limiting resource. We argue that the results of a number of microbial selection experiments are consistent with the predictions of our model.
- Publication
Journal of evolutionary biology, 2007, Vol 20, Issue 5, p1882
- ISSN
1010-061X
- Publication type
Journal Article
- DOI
10.1111/j.1420-9101.2007.01376.x