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The evolutionary history of vertebrate cranial placodes - I: Cell type evolution
Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.
Zoology, School of Natural Sciences & Regenerative Medicine Institute (REMEDI), National University of Ireland, Galway, University Road, Galway, Ireland.
Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK.
2014 (English)In: Developmental Biology, ISSN 0012-1606, E-ISSN 1095-564X, Vol. 389, no 1, 82-97 p.Article in journal (Refereed) Published
Abstract [en]

Vertebrate cranial placodes are crucial contributors to the vertebrate cranial sensory apparatus. Their evolutionary origin has attracted much attention from evolutionary and developmental biologists, yielding speculation and hypotheses concerning their putative homologues in other lineages and the developmental and genetic innovations that might have underlain their origin and diversification. In this article we first briefly review our current understanding of placode development and the cell types and structures they form. We next summarise previous hypotheses of placode evolution, discussing their strengths and caveats, before considering the evolutionary history of the various cell types that develop from placodes. In an accompanying review, we also further consider the evolution of ectodermal patterning. Drawing on data from vertebrates, tunicates, amphioxus, other bilaterians and cnidarians, we build these strands into a scenario of placode evolutionary history and of the genes, cells and developmental processes that underlie placode evolution and development. (C) 2014 Elsevier Inc. All rights reserved.

Place, publisher, year, edition, pages
Elsevier, 2014. Vol. 389, no 1, 82-97 p.
Keyword [en]
Placode, Cell type, Neural crest, Amphioxus, Ciona, Evolution, Development
National Category
Cancer and Oncology
URN: urn:nbn:se:umu:diva-88942DOI: 10.1016/j.ydbio.2014.01.017ISI: 000334138700008OAI: diva2:719167
Available from: 2014-05-23 Created: 2014-05-19 Last updated: 2014-05-23Bibliographically approved

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Patthey, Cedric
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