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Another case of unequal crossing-over in Drosophila melanogaster

Lewis, E. B. (1941) Another case of unequal crossing-over in Drosophila melanogaster. Proceedings of the National Academy of Sciences of the United States of America, 27 (1). pp. 31-35. ISSN 0027-8424.

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Females homozygous for the sex-linked dominant, Bar, occasionally give rise to wild-type reversions and to forms with more extreme eye reduction than Bar. This behavior was shown by Sturtevant(1) to result from unequal crossing-over. The Bar-reverted type was considered to be a deficiency for the Bar gene; while the extreme form, called Ultra-Bar or Double-Bar, was interpreted as a duplication for that gene. Later, Wright(2) suggested that Bar itself had something additional present which when lost by unequal crossing-over would give back a normal chromosome (Bar-reverted).

Item Type:Article
Additional Information:Copyright © 1941 by the National Academy of Sciences. Communicated November 18, 1940.
Record Number:CaltechAUTHORS:LEWpnas41
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:1445
Deposited By: Tony Diaz
Deposited On:19 Jan 2006
Last Modified:14 Nov 2014 19:18

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