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Annelids in evolutionary developmental biology and comparative genomics.

Research output: Contribution to journalArticle

Author(s)

C. McDougall, J.H.L. Hui, A. Monteiro, T. Takahashi, David Ellard Keith Ferrier

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Abstract

Annelids have had a long history in comparative embryology and morphology, which has helped to establish them in zoology textbooks as on ideal system to understand the evolution of the typical triploblostic, coelomote, protostome condition. In recent years there has been a relative upsurge in embryological data, particularly with regard to the expression and function of developmental control genes. Polychaetes, as well as other annelids such as the parasitic leech, are now also entering the age of comparative genomics. All of this comparative data has had an important impact on our views of the ancestral conditions at various levels of the animal phylogeny, including the bilaterian ancestor and the nature of the annelid ancestor. Here we review some of the recent advances made in annelid comparative development and genomics, revealing a hitherto unsuspected level of complexity in these ancestors, It is also apparent that the transition to a parasitic lifestyle leads to, or requires, extensive modifications and derivations at both the genomic and embryological levels.

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Details

Original languageEnglish
Pages (from-to)321-328
Number of pages8
JournalParasite
Volume15
Issue number3
DOIs
StatePublished - Sep 2008

    Research areas

  • Polychaetes, clitellates, bilaterian, Hox, ParaHox, HOX GENE-EXPRESSION, CAPITELLA SP-I, POLYCHAETE PLATYNEREIS-DUMERILII, NERVOUS-SYSTEM, LEECH HELOBDELLA, POSTERIOR GROWTH, MOLTING ANIMALS, COMMON ORIGIN, GERM-CELLS, CLUSTER

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