Sequence repetition in the DNA of Nassaria (Ilyanassa) obsoleta

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% nonrepetit...

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Published inDevelopmental biology Vol. 25; no. 3; pp. 445 - 463
Main Authors Davidson, Eric H., Hough, Barbara R., Chamberlin, Margaret E., Britten, Roy J.
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.07.1971
Subjects
Animals
Cell Division
DNA Replication
Female
Genetic Code
Ovum
Snails - growth & development
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Summary: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.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:0012-1606
1095-564X
DOI:10.1016/0012-1606(71)90041-8