A phenotypic view of evolution Evolution in Structured Populations

The phenotypic view: Stopping rules and Quantitative Genetics

As Henry Louis Mencken once said “For every complex problem there is an answer that is clear, simple and wrong.”  Dawkins’ gene centric view is exactly that: clear, simple and wrong.  In its place I suggested a phenotypic view of evolution in which phenotypes are viewed as creating new phenotypes with a transition equation describing …

The phenotype as the center of Evolution

When I first learned about evolution I was taught that evolution was change in gene frequency.  As I pointed out before this definition is inadequate, however, the gene frequency definition has the interesting property that evolution can be described in terms of deviations from the Hardy-Weinberg-Castle (HWC) equilibrium.  For all its faults the HWC equilibrium …

Why genotypes are not just the sum of the genes

I want to continue with my theme that the patterning node is not just genotype, and that the genotype is not just genes.  In particular, I want to talk about gene interaction, and why the genotype is not the sum of the genes.  This is an area in which I am an active researcher (in …

The phenotype and evolution (more on defining evolution)

In the previous post I made it clear that I was defining evolution in terms of changes in phenotype.  This is an important point, as many only consider changes in gene frequency to be evidence of evolution.  As an example, in a recent article in the scientist (http://www.the-scientist.com//?articles.view/articleNo/35317/title/Humans-Under-Pressure/) the author writes: “Although the team did …

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