James Patterson:
Molecular evolution too, David? There are five different types of molecular convergence. There are hundreds of examples in the literature now. They are not expected, and not consistent with the neoDarwinian model. The most remarkable is systemic convergence, the independent emergence of entire biochemical systems, and there are numerous examples of this.
My response:
James, would you be willing to expand on these claims just a little? I haven't seen an analysis of convergence that categorizes "molecular convergence" into 5 types, and I am very interested in having a look at this literature. And the phrase "systemic convergence" is very rare in the biomedical literature (as assessed by searching PubMed) and is not used there in an evolutionary context, so I'm unable to determine exactly what it means and curious about where you might have found "numerous examples" of the phenomenon. (The PubMed database is enormous and quite comprehensive, but I know it probably doesn't include every biologically-related journal.) Convergence is a very interesting topic, to say the least, and I would be most grateful for your references. Thanks,
Steve Matheson
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Received on Wed Nov 5 10:05:04 2008
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