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. 2015 May 14;6:21. doi: 10.1186/s13227-015-0007-5

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© Mansfield et al.; licensee BioMed Central. 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Summary of the development of amphioxus non-myotome somite derivatives in embryonic (A), larval (B-E) and adult (F) stages. Note that arrows indicate a change in the relative position of tissues, but it is not known whether this is achieved by active migration and/or differential growth of somitic or surrounding tissues. See the text for a detailed description of development. Abbreviations: ECL, external cell layer; EP, ectodermal epithelium; FBM, fin box mesothelium; MS, myoseptum; MSC, myoseptal fibroblast cell MY, myotome: NT, neural tube; NO, notochord. Stage abbreviations: neur, neurula; GS, gill slit; post-met, post-metamorphic juvenile.