Article
Evolution of vertebrate gill covers via shifts in an ancient Pou3f3 enhancer.
Proceedings of the National Academy of Sciences of the United States of America - 6 Oct 2020
Barske Lindsey, Fabian Peter, Hirschberger Christine, Jandzik David, Square Tyler, Xu Pengfei, Nelson Nellie, Yu Haoze Vincent, Medeiros Daniel M, Gillis J Andrew, Crump J Gage
Abstract excerpt
Whereas the gill chambers of jawless vertebrates open directly into the environment, jawed vertebrates evolved skeletal appendages that drive oxygenated water unidirectionally over the gills. A major anatomical difference between the two jawed vertebrate lineages is the presence of a single large gill cover in bony fishes versus separate covers for each gill chamber in cartilaginous fishes. Here, we find that...
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