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SOCIAL EVOLUTION

A toolkit for caste differentiation

The identification of a set of conserved genes that has had stable expression patterns over 120 million years of ant evolution provides a glimpse into the mechanisms that generate queen and worker castes in ants.

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The author declares no competing interests.

Correspondence to Sarah D. Kocher.

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Fig. 1: Gene regulatory networks may shape the evolution of both eusociality and multicellularity.