Emx and Otx Gene Expression in the Developing Mouse Brain

  1. Gregory R. Bock Organizer and
  2. Gail Cardew
  1. Edoardo Boncinelli1,2,
  2. Massimo Gulisano3,
  3. Fabio Spada1 and
  4. Vania Broccoli4

Published Online: 28 SEP 2007

DOI: 10.1002/9780470514795.ch6

Ciba Foundation Symposium 193 - Development of the Cerebral Cortex

Ciba Foundation Symposium 193 - Development of the Cerebral Cortex

How to Cite

Boncinelli, E., Gulisano, M., Spada, F. and Broccoli, V. (2007) Emx and Otx Gene Expression in the Developing Mouse Brain, in Ciba Foundation Symposium 193 - Development of the Cerebral Cortex (eds G. R. Bock and G. Cardew), John Wiley & Sons, Ltd., Chichester, UK. doi: 10.1002/9780470514795.ch6

Author Information

  1. 1

    DIBIT, Istituto Scientifico H.S. Raffaele, Via Olgettina 60, 20132 Milano, Via Belmeloro 8, 40126 Bologna, Italy

  2. 2

    Centro Infrastrutture Cellulari, Via Vanvitelli 32,20129 Milano, Via Belmeloro 8, 40126 Bologna, Italy

  3. 3

    Istituto di Biologia Generale, Via Androne 81, 95124 Catania, Via Belmeloro 8, 40126 Bologna, Italy

  4. 4

    Istituto di Genetica, Dipartimento di Biologia Evoluzionistica Sperimentale, Via Belmeloro 8, 40126 Bologna, Italy

Publication History

  1. Published Online: 28 SEP 2007

ISBN Information

Print ISBN: 9780471957058

Online ISBN: 9780470514795

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Keywords:

  • Emx expression;
  • Otx gene expression;
  • mouse brain;
  • Emx1 expression domain;
  • gestation

Summary

The homeobox genes Emx1, Emx2, Otx1 and Otx2 are all expressed in the rostral brain of embryos at E10. Their expression domains are continuous regions of the developing brain contained within each other, such that the expression domain of Otx2 contains that of the other three genes, the expression domain of Otx1 contains that of Emx1 and Emx2, and the expression domain of Emx2 contains that of Emx1. The Emx1 expression domain includes the dorsal telencephalon and it has a posterior boundary slightly anterior to that between the presumptive diencephalon and telencephalon, whereas the Otx2 expression domain covers almost the entire forebrain and midbrain. Starting from E10.75, Otx2 expression disappears progressively from the presumptive cerebral cortex, whereas Emx1, Emx2 and Otx1 are expressed in this structure until late gestation. In particular, Emx2 appears to be expressed exclusively in the germinal ventricular zone of the developing cerebral cortex.