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Literature DB >> 15150419

The evolution of a pleiotropic fitness tradeoff in Pseudomonas fluorescens.

R Craig MacLean¹, Graham Bell, Paul B Rainey.

Abstract

The evolution of ecological specialization is expected to carry a cost, due to either antagonistic pleiotropy or mutation accumulation. In general, it has been difficult to distinguish between these two possibilities. Here, we demonstrate that the experimental evolution of niche-specialist genotypes of the bacterium Pseudomonas fluorescens that colonize the air-broth interface of spatially structured microcosms is accompanied by pleiotropic fitness costs in terms of reduced carbon catabolism. Prolonged selection in spatially structured microcosms caused the cost of specialization to decline without loss of the benefits associated with specialization. The decline in the cost of specialization can be explained by either compensatory adaptation within specialist lineages or clonal competition among specialist lineages. These results provide a possible explanation of conflicting accounts for the cost of specialization.

Entities: Chemical Species

Mesh：

Year: 2004 PMID： 15150419 PMCID： PMC419559 DOI： 10.1073/pnas.0307195101

Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN： 0027-8424 Impact factor: 11.205

17 in total

Review 1. The biological cost of antibiotic resistance.

Authors: D I Andersson; B R Levin
Journal: Curr Opin Microbiol Date: 1999-10 Impact factor: 7.934

2. The population genetics of ecological specialization in evolving Escherichia coli populations.

Authors: V S Cooper; R E Lenski
Journal: Nature Date: 2000-10-12 Impact factor: 49.962

3. Evolution of thermal dependence of growth rate of Escherichia coli populations during 20,000 generations in a constant environment.

Authors: V S Cooper; A F Bennett; R E Lenski
Journal: Evolution Date: 2001-05 Impact factor: 3.694

4. Adaptive divergence in experimental populations of Pseudomonas fluorescens. I. Genetic and phenotypic bases of wrinkly spreader fitness.

Authors: Andrew J Spiers; Sophie G Kahn; John Bohannon; Michael Travisano; Paul B Rainey
Journal: Genetics Date: 2002-05 Impact factor: 4.562

The evolution of a pleiotropic fitness tradeoff in Pseudomonas fluorescens.

Review 1. The biological cost of antibiotic resistance.

2. The population genetics of ecological specialization in evolving Escherichia coli populations.

3. Evolution of thermal dependence of growth rate of Escherichia coli populations during 20,000 generations in a constant environment.

4. Adaptive divergence in experimental populations of Pseudomonas fluorescens. I. Genetic and phenotypic bases of wrinkly spreader fitness.

Review 5. New technologies to assess genotype-phenotype relationships.

6. Compensatory adaptation to the deleterious effect of antibiotic resistance in Salmonella typhimurium.

Review 7. Evolution experiments with microorganisms: the dynamics and genetic bases of adaptation.

8. Evolution of cooperation and conflict in experimental bacterial populations.

9. Adaptive radiation in a heterogeneous environment.

10. The fate of competing beneficial mutations in an asexual population.

Review 1. New insights into bacterial adaptation through in vivo and in silico experimental evolution.

2. Overshooting dynamics in a model adaptive radiation.

Review 3. One hundred years of pleiotropy: a retrospective.

4. Experimental niche evolution alters the strength of the diversity–productivity relationship.

5. Synergistic Pleiotropy Overrides the Costs of Complexity in Viral Adaptation.

6. Evolutionary framework for protein sequence evolution and gene pleiotropy.

7. How does resource supply affect evolutionary diversification?

8. The genetic basis of parallel and divergent phenotypic responses in evolving populations of Escherichia coli.

9. In situ phylogenetic structure and diversity of wild Bradyrhizobium communities.

10. Experimental adaptation of Salmonella typhimurium to mice.