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Science 15 July 1983:
Vol. 221. no. 4607, pp. 293 - 295
DOI: 10.1126/science.6857287
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Articles

Science, Vol 221, Issue 4607, 293-295
Copyright © 1983 by American Association for the Advancement of Science

articles

Eye dominance columns from an isogenic double-nasal frog eye

CF Ide, SE Fraser, and RL Meyer

Removing the posterior (temporal) two-thirds of the Xenopus eye bud produces a remaining fragment, which becomes round and grows to a normal adult size eye. Electrophysiological and anatomical analyses showed that each of the two halves of this eye projected across the entire optic tectum in mirror image (double-nasal) fashion, and that fibers from each half-eye sorted out to form eye dominance stripes on the tectum. That both halves of the mirror-symmetric map were derived from only one animal, and from only one side of the head, rules out global markers such as right versus left and histocompatibility differences as causing the formation of these stripes.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Nitric Oxide in the Retinotectal System: a Signal But Not a Retrograde Messenger During Map Refinement and Segregation.
R. C. Renteria and M. Constantine-Paton (1999)
J. Neurosci. 19, 7066-7076
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