Intramolecular heterogeneity of mitochondrial DNA of Drosophila melanogaster

DNA from purified mitochondria of Drosophila melanogaster can be isolated as supercoiled molecules which when nicked have a contour length of 5.9 micron. Partial denaturation mapping shows regional heterogeneity of base composition with one early denaturing region, with a calculated GC content close...

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Detalles Bibliográficos
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1977
Materias:
Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2109910/
https://www.ncbi.nlm.nih.gov/pubmed/404300
Descripción
Sumario:DNA from purified mitochondria of Drosophila melanogaster can be isolated as supercoiled molecules which when nicked have a contour length of 5.9 micron. Partial denaturation mapping shows regional heterogeneity of base composition with one early denaturing region, with a calculated GC content close to zero, extending over 20% of the genome. DNA isolated from unfertilized eggs shows nuclear and mitochondrial DNA in equal proportions; we found no evidence of other cytoplasmic species.

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