Population Genetics and Evolution - I- The Mechanisms of Evolution

Explore the mechanisms of evolution in this comprehensive lecture on population genetics and evolution. Delve into key concepts such as the Long-Term Evolution Experiment (LTEE) on E. coli, adaptation to citrate, and simple exponential growth. Examine the Galton-Watson process, including its continuous time version and generating functions. Investigate the logistic function, selection in continuous time, and frequency-dependent selection. Learn about measuring fitness in the LTEE and positive selection. Conclude with an exploration of the prisoner's dilemma in an RNA virus. Gain valuable insights into evolutionary processes and their applications in modern biology through this in-depth presentation by Luca Peliti at the International Centre for Theoretical Sciences.

Syllabus

Start
The Long-Term Evolution Experiment LTEE on E. coli
Adaptation to citrate
The mechanisms of evolution
Simple exponential growth
The Galton-Watson GW process
Solving the GW process
The generating function
Graphical solution
The Galton-Watson process in continuous time
Generating functions
Minimal population size
The logistic function
About the Fundamental Theorem
Selection in continuous time
Measuring fitness in the LTEE
Frequency-dependent selection
Positive selection
Prisoner's dilemma in an RNA virus