http://www.eurekalert.org/pub_releases/2009-08/uoia-has081309.php

CHAMPAIGN, Ill. — A new study reveals that changes in gene expression in the
brain of the honey bee in response to an immediate threat have much in
common with more long-term and even evolutionary differences in honey-bee
aggression. The findings lend support to the idea that nurture (an
organism's environment) may ultimately influence nature (its genetic
inheritance).

The study, appearing this week in the *Proceedings of the National Academy
of Sciences*, used microarray analysis to measure changes in gene expression
in the brains of European honey bees and the much more aggressive
Africanized honey bees. Microarrays offer a snapshot of the thousands of
genes that are activated at a given point in time. By comparing microarrays
of bees in different environmental and social conditions, the researchers
were able to look for patterns of gene expression that coincided with
aggression.


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