• Acampora, D., Mazan, S., Lallenmand, Y., et al. 1995. Forebrain and midbrain regions are deleted in Otx2-/- mutants due to a defective anterior neuroectoderm specification during gastrulation. Development 121, 32793290.
  • Ang, S. L., Jin, O., Rhinn, M., Daigle, N., Stevenson, L., & Rossant, J. 1996. A targeted mouse Otx2 mutation leads to severe defects in gastrulation and formation of axial mesoderm and to deletion of rostral brain. Development 122, 243252.
  • Baguñà, J., & Romero, R. 1981. Quantitative analysis of cell types during growth, degrowth and regeneration in the planarians Dugesia mediterranea and Dugesia tigrina. Hydrobiologia 84, 181194.
  • Baguñà, J., Romero, R., Saló, E., et al. 1990. Growth, degrowth and regenerations as developmental phenomena in adult freshwater planarians. In Experimental Embryology in Aquatic Plants and Animals (Ed. H. J.Marthy), pp. 129162. Plenum Press, New York .
  • Finkelstein, R., & Boncinelli, E. 1994. From fly head to mammalian forebrain: The story of otd and Otx. Trends Genet. 10, 310315.
  • Finkelstein, R., Smouse, D., Capaci, T. M., Spradling, A. C., & Perrimon, N. 1990. The orthodenticle gene encodes a novel homeodomain protein involved in development of the Drosophila nervous system and ocellar visual structures. Genes Dev. 4, 15161527.
  • Gan, L., Mao, C. A., Wikramanayake, A., Angerer, L. M., Angerer, R. C., & Klein, W. H. 1995. An orthodenticle-related protein from Strongylocentrotus purpuratus. Dev. Biol. 167, 517528.
  • Hirth, F., Therianos, S., Loop, T., Gehring, J. W., Reichert, H., & Furukubo-Tokunaga, K. 1995. Developmental defects in brain segmentation caused by mutations of the homeobox genes orthodenticle and empty spiracles in Drosophila. Neuron 15, 769778.
  • Matsuo, I., Kuratani, S., Kimura, C., Takeda, N., & Aizawa, S. 1995. Mouse Otx2 functions in the formation and patterning of rostral head. Genes Dev. 9, 26462658.
  • Pellengrini, M., Mansouri, A., Simeone, A., Boncinelli, E., & Gruss, P. 1996. Dentate gyrus formation requires Emx2. Development 122, 38933898.
  • Pigon, A. 1974. Cephalic mechanisms for social control of fissioning in planarians. II. Localization and identification of the receptors by electronmicrographic and ablation studies. J. Neurobiol. 5, 443462.
  • Simeone, A., Acampora, D., Gulisano, M., Stornaiuolo, A., & Boncinelli, E. 1992. Nested expression domains of four homeobox genes in developing rostral brain. Nature 358, 687690.
  • Simeone, A., D'Apice, R. M., Nigro, V., et al. 1994. Orthopedia, a novel homeobox-containing gene expressed in the developing CNS of both mouse and Drosophila. Neuron 13, 83101.
  • Suda, Y., Matsuo, I., Kuratani, S., & Aizawa, S. 1996. Otx1 function overlaps with Otx2 in development of mouse forebrain and midbrain. Genes Cells 1, 10311044.
  • Thor, S. 1995. The genetics of brain development: Conserved programs in flies and mice. Neuron 15, 975977.
  • Yoshida, M., Suda, Y., Matsuo, I., et al. 1997. Emx1 and Emx2 functions in development of dorsal telencephalon. Development 124, 101111.