Selective Pressures at Work When Genes Arise from Noncoding DNA

January 24, 2014 4:06 PM

26 0

Selective Pressures at Work When Genes Arise from Noncoding DNA

Scientists on the track of de novo genes—the few genes not present among ancestral genes—have found them in rice, yeast, rodents, humans, and (of course) fruit flies. Moreover, at least some of these de novo genes appear to originate from ancestrally nongenic sequences. This finding, which suggests that new genes needn’t arise from modifications of existing genes, still leaves scientists wanting to know more. Exactly how, they ask, do genes arising from noncoding DNA originate and spread?

A partial answer comes from researchers at the University of California, Davis (UC-Davis). They decided to widen the scope of de novo gene evolution studies by taking a population-based perspective. The results of their work appeared January 23 in Science Express, in an article entitled “Origin and ...

Read more

To category page

Loading...