Chapter 14 Outline

The Birth of a Gene

  • Gene families

The Death of a Gene

Evolution of Protein-Coding Genes

  • Evolution of coding regions by genetic drift
  • Evolution of coding regions by positive selection

Evolution of Gene Expression

Gene Structure

Chromosome Evolution

  • Fissions, fusions, and the evolution of chromosome number
  • Inversions and the evolution of chromosome structure

Evolution of Genome Size and Content

  • Genomes large and small
  • Genetic parasites and transposable elements
  • Routes to the evolution of the smallest and largest genomes