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Updated: Jul 10, 2026

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins
Published on: June 11, 2015
Genetic details, optimization and phage life histories
J J Bull1, David W Pfennig, Ing-Nang Wang
1Section of Integrative Biology and Institute of Cellular and Molecular Biology, University of Texas, Austin, TX 78712, USA. bull@bull.biosci.utexas.edu
Optimality models in evolutionary biology may overlook genetic mechanisms. This study examines bacteriophage lysis time, finding optimality models compatible with genetic details but limited in explaining plasticity due to unknown mechanisms.
Area of Science:
- Evolutionary biology
- Genetics
- Molecular biology
Background:
- Optimality models in evolutionary biology often assume phenotypes evolve independently of genetic mechanisms.
- This assumption is debated, with some viewing it as an advantage and others as a flaw.
- A lack of complex phenotypes with known genetic underpinnings has hindered resolution.
Purpose of the Study:
- To evaluate the compatibility of optimality models with genetic mechanisms using bacteriophage lysis time.
- To assess the strengths and limitations of optimality models in explaining phenotypic evolution.
- To investigate the role of genetic mechanisms in lysis time plasticity.
Main Methods:
- Comparative analysis of optimality models and genetic data for bacteriophage lysis time.
- Examination of existing literature on bacteriophage genetics and lysis mechanisms.
- Assessment of the capacity of optimality models to incorporate genetic details and plasticity.
Main Results:
- The fundamental assumptions of optimality models align with the genetic specifics of bacteriophage lysis time.
- Optimality models demonstrate limitations in accounting for lysis time plasticity.
- The mechanistic basis of lysis time plasticity in bacteriophages remains poorly understood.
Conclusions:
- Optimality models provide a useful framework but require integration with genetic mechanisms for a comprehensive understanding of evolution.
- Further research into the genetic underpinnings of phenotypic plasticity is crucial.
- Bacteriophage lysis time serves as a relevant case study for exploring the interplay between selection, genetics, and plasticity.
Related Concept Videos
Lytic Cycle of Bacteriophages
Lysogenic Cycle of Bacteriophages
Viral Replication: Lysogenic Cycle
DNA Bacteriophages
Evolution of New Traits in Microbes
Evolution of Microbial Genome

