Implications of cnidarian gene expression patterns for the origins of bilaterality - is the glass half full or half empty?
The past two years have seen a dramatic increase in the available data on gene sequence and gene expression for cnidarians and other "lower" Metazoa, and a flurry of recent papers has drawn on these to address the origins of bilaterality. Cnidarian homologs of many genes that play key roles in the specification of both the A/P and D/V axes of bilaterians have been characterized, and their patterns of expression determined. Some of these expression patterns are consistent with the possibility of...[Show more]
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|Source:||Integrative and Comparative Biology|
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