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,” explains study author Nitin Phadnis of the University of Rochester in New York.
Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.