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    Developmental gene expression in the mouse clarifies the organisation of the claustrum and related endopiriform nuclei

    Access Status
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    Authors
    Watson, Charles
    Puelles, L.
    Date
    2016
    Type
    Journal Article
    
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    Citation
    Watson, C. and Puelles, L. 2016. Developmental gene expression in the mouse clarifies the organisation of the claustrum and related endopiriform nuclei. Journal of Comparative Neurology. [In Press].
    Source Title
    Journal of Comparative Neurology
    DOI
    10.1002/cne.24034
    ISSN
    1096-9861
    Faculty
    Faculty of Health Sciences
    URI
    http://hdl.handle.net/20.500.11937/37849
    Collection
    • Curtin Research Publications
    Abstract

    Studies on gene expression in the developing claustrum of the mouse have clarified the relationships and identity of the claustrum proper and related endopiriform nuclei. The cells of the claustrum primordium express Nr4a2; they are formed in combination with the Nr4a2-labeled subplate cells in the lateral pallium at the site of the future insular cortex. The insular cortex cells, which are born later and which are Nr4a2-negative, migrate through the claustrum toward the pial surface to form layers (2–6a) of the insular cortex. The claustrum is made up of distinct deep (subplate-like) and superficial (principal) parts. The cells of the dorsal endopiriform nucleus (which are also Nr4a2-positive) are formed in the deep part of the claustrum primordium in the lateral pallium, but they migrate ventrally to reach the ventral pallium deep to the piriform cortex at E14.5 in the mouse. On the other hand, the ventral endopiriform nucleus is formed by radially migrating Nr4a2-negative cells in the ventral pallium; it is therefore developmentally distinct from the Nr4a2-postive dorsal endopiriform nucleus, which is a lateral pallial derivative.

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