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Sequence repetition in the DNA of Nassaria (Ilyanassa) obsoleta

Davidson, Eric H. and Hough, Barbara R. and Chamberlin, Margaret E. and Britten, Roy J. (1971) Sequence repetition in the DNA of Nassaria (Ilyanassa) obsoleta. Developmental Biology, 25 (3). pp. 445-463. ISSN 0012-1606. doi:10.1016/0012-1606(71)90041-8.

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The reassociation kinetics of the DNA of Ilyanassa obsoleta have been studied in order to obtain a repetition frequency profile for the genome of this organism, a well known subject of embryological interest. At a criterion set about 25°C below the T_m, Ilyanassa DNA consists of about 38% nonrepetitive sequences; at least 12% of a repetitive sequence component averaging about 20 relatives per sequence; at least 15% of a repetitive sequence component averaging about 1000 relatives per sequence; and 18% of a component which reassociates extremely rapidly and either contains regions of internal homology or consists of a small number of extremely frequent sequences, or both.

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Additional Information:© 1971 Elsevier Inc. Accepted 1 February 1971. This research was supported by the American Cancer Society Grant E334 and by the National Institute of Child Health and Development Grant HD-02412. The authors are pleased to acknowledge stimulating and useful discussions with their colleague Dr. Bruce Voeller of the Rockefeller University. We thank Mr. and Mrs. Ernest Gebelein for their kindness in allowing us to collect snails on their property at Truro, Massachusetts, and Mr. William Viets for excellent technical assistance in the preparation and care of the experimental snails.
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American Cancer SocietyE334C
Issue or Number:3
Record Number:CaltechAUTHORS:20160802-104636732
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Official Citation:Eric H. Davidson, Barbara R. Hough, Margaret E. Chamberlin, Roy J. Britten, Sequence repetition in the DNA of Nassaria (Ilyanassa) obsoleta, Developmental Biology, Volume 25, Issue 3, July 1971, Pages 445-463, ISSN 0012-1606, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69386
Deposited By: Ruth Sustaita
Deposited On:02 Aug 2016 18:10
Last Modified:11 Nov 2021 04:13

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