Researchers uncover genetic foundation of fish jaws
In a study illustrating the apparent linkages between the evolutionary development and embryonic development of species, researchers have uncovered the genetic elements that determine the structure and function of a simple biomechanical system, the lower jaw of the cichlid fish. In addition, they’ve shown that increasing expression of a particular gene in an embryo can lead to physical changes in the adult fish. The results appear in the November 11, 2005 issue of the Proceedings of the National Academy of Sciences.
"We’re using the jaw to think about the genetic basis of biomechanical systems," said J. Todd Streelman, assistant professor in the School of Biology at the Georgia Institute of Technology. "We want to understand the genes that control this lever system. What we found was that this simple biomechanical system is much more complex than previously thought."
David Terraso | EurekAlert!
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