by Ishani Ganguli
RESEARCH ROUND-UP	Getting on top, genetically Email: Ishani Ganguli - iganguli@the-scientist.com News from The Scientist 2005, 6(1):20051018-01 Published   18 October 2005

For the first time, scientists have directly linked social cues to an immediate genetic response in the brain, according to a new study in PloS Biology. Only minutes after subordinate male cichlid fish sense an opportunity to become socially dominant, they display dominant characteristics such as changes in color and behavior, and express egr-1, encoding a transcription factor that likely triggers enhanced fertility and other long-term dominance traits.

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