Sci. Signal., 28 February 2012
Evolution Winging It
Laura M. Zahn
Science, AAAS, Washington, DC 20005, USA
Genes that explain phenotypic variation between species have only been identified within a handful of model organisms, which limits the scope and understanding of the genetics of phenotypic diversification. On investigating the phenotypic diversity in wing size among wasps of the genus Nasonia, Loehlin and Werren have identified the genetic basis of a morphological difference between two closely related species and showed how changes in regulatory elements have evolved to change expression of a single gene, unpaired-like (upd-like), a functionally conserved signaling gene. Overall, it appeared that significant morphological change was achieved through a series of relatively rapid but small-scale changes.
Citation: L. M. Zahn, Winging It. Sci. Signal. 5, ec69 (2012).
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