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Structure and Arrangement of Salivary Gland Chromosomes in Drosophila Species

Bauer, Hans (1936) Structure and Arrangement of Salivary Gland Chromosomes in Drosophila Species. Proceedings of the National Academy of Sciences of the United States of America, 22 (4). pp. 216-222. ISSN 0027-8424. http://resolver.caltech.edu/CaltechAUTHORS:BAUpnas36

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Abstract

The salivary gland nuclei in Drosophila contain two different chromosome derivatives, the long chromosome strands which correspond to the euchromatic parts of prophase chromosomes, and the chromocenter which arises from the heterochromatic regions (Heitz [2]). While most investigators now agree that the euchromatic strands are composed of a number of closely united chromonemata, the homologous chromomeres of which form discs (aggregate chromomeres), there is no uniformity of opinion regarding the chromocenter. Painter [3] considered it an aggregate of accessory material into which each chromosome sends a thin achromatic strand. Muller and Prokofjeva [4] believe that these regions show the same regular banding as the euchromatic parts. Koller' calls the chromocenter an "undifferentiated magma."


Item Type:Article
Additional Information:Copyright © 1936 by the National Academy of Sciences Communicated February 25, 1936 Intern. Research Fellow of the Rockefeller Foundation.
Record Number:CaltechAUTHORS:BAUpnas36
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BAUpnas36
Alternative URL:http://www.pnas.org/content/vol22/issue4/
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:4484
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:24 Aug 2006
Last Modified:14 Nov 2014 19:19

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