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Molgulid ascidians share a unique gene complex
(Friday Harbor Labs, 2011-09)
Typical chordate features found in ascidian tadpole larvae have been evolutionarily lost several times independently within the Molgulidae family. While tailed molgulids retain a tail with muscle cells, a notochord, and a dorsal neural tube, the notochord and muscle cells have been lost within the tailless species. A locus ...