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Cytological demonstration of the helical structure of giant chromosomes

Hovanitz, William (1956) Cytological demonstration of the helical structure of giant chromosomes. Proceedings of the National Academy of Sciences of the United States of America, 42 (9). pp. 609-613. ISSN 0027-8424. doi:10.1073/pnas.42.9.609.

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Alverdes(1) as long ago as 1912 interpreted the bands of the giant chromosomes found by Balbiani(2) in Chironomus as the result of spiralization. Later, Kaufmann,(3) applying plant-chromosome techniques to Drosophila giant chromosomes, concluded that the discoid or discontinuous appearance of these chromosomes was an expression of inadequate technique and that a spiral structure was the more accurate. Nevertheless, the discontinuous structure appeared to fit genetic data more easily.

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Additional Information:© 1956 by the National Academy of Sciences. Communicated by F. W. Went, July 11, 1956. The author wishes to express his gratitude to Dr. Taylor Hinton and Mr. W. Goodsmith of the Department of Zoology, University of California, Los Angeles, for their aid in supplying laboratory space, equipment, and the preparation shown.
Issue or Number:9
Record Number:CaltechAUTHORS:HOVpnas56
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:7648
Deposited By: Tony Diaz
Deposited On:16 Mar 2007
Last Modified:08 Nov 2021 20:44

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