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Constraints on microbial metabolism drive evolutionary diversification in homogeneous environments.
- Source :
-
Journal of Evolutionary Biology . Sep2007, Vol. 20 Issue 5, p1882-1889. 8p. 3 Graphs. - Publication Year :
- 2007
-
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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1010061X
- Volume :
- 20
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Journal of Evolutionary Biology
- Publication Type :
- Academic Journal
- Accession number :
- 32523706
- Full Text :
- https://doi.org/10.1111/j.1420-9101.2007.01376.x