wildcat says: Species can split into two when freewheeling gene exchange is no longer possible, a barrier Overdrive appears to build. “Conventionally, evolutionary biologists thought that speciation involved adaptation to the external environment, but these results suggest that adaptation to the internal genomic environment also sometimes plays a role,The genome is so active, there is so much time available, that if a thing can happen to progress the organism, it will happen. They shouldn't be surprised that the genome is so adaptive, they should have expected it. Myopics, Update Your Darwinian Evolution Conceptions A. From "Gene could drive species separation" http://www.sciencenews.org/view/generic/id/39279/title/Gene_could_drive_species_separation "A newly identified gene in fruit flies may drive the creation of new species, revealing how internal genetic environments may be just as important as external factors when it comes to speciation. The new work lends evidence to a hotly debated idea in evolutionary biology. “Conventionally, evolutionary biologists thought that speciation involved adaptation to the external environment, but these results suggest that adaptation to the internal genomic environment also sometimes plays a role,” ... |
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