Blackwell Publishing

What is speciation?

"Speciation comes about when there is recombinational isolation between different groups of genes, so that no longer can genes in one group be recombined with genes in another group.

Once this occurs there is selection within each group of genes to interact well with the members of their own gene pool but there is no selection for them to be particularly functional with members of the alternate gene pool."

David Haig

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