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The gene complement of the ancestral bilaterian - was Urbilateria a monster?

David J Miller1* and Eldon E Ball2

Author Affiliations

1 ARC Centre of Excellence for Coral Reef Studies and Comparative Genomics Centre, James Cook University, Townsville, Queensland 4811, Australia

2 Centre for Molecular Genetics of Development and School of Biology, Australian National University, Canberra, ACT 2601, Australia

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Journal of Biology 2009, 8:89  doi:10.1186/jbiol192

Published: 19 November 2009


Expressed sequence tag analyses of the annelid Pomatoceros lamarckii, recently published in BMC Evolutionary Biology, are consistent with less extensive gene loss in the Lophotrochozoa than in the Ecdysozoa, but it would be premature to generalize about patterns of gene loss on the basis of the limited data available.

See research article webcite.