The amplified ribosomal DNA of dytiscid beetles.

Proceedings of the National Academy of Sciences of the United States of America ·Vol. 71 ·No. 5 ·1974-05-00 ·Pages 1819-23

Gall JG, Rochaix JD

Abstract

During oogenesis in many animals there is a massive extrachromosomal synthesis of the genes for ribosomal RNA. In Dytiscid beetles, as in the toad Xenopus, the amplified ribosomal DNA occurs as circular molecules of different sizes. The circles fall into size classes that are integral multiples of a unit circle. It is probable that the unit circle contains the coding sequence for one precursor ribosomal RNA molecule plus accompanying spacer sequences.

MeSH Terms

Animals Autoradiography Coleoptera DNA Replication DNA, Circular/analysis Genetic Code Microscopy, Electron Molecular Conformation Molecular Weight Nucleic Acid Denaturation RNA, Ribosomal/biosynthesis

Chemicals

DNA, Circular RNA, Ribosomal

Authors & Affiliations

2 authors, click to expand affiliations / ORCID

Gall J G

Rochaix J D

References (14)

14 references, click to expand

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Article Info

Journal

Proceedings of the National Academy of Sciences of the United States of America

Abbr.

Proc Natl Acad Sci U S A

ISSN

0027-8424

DOI

10.1073/pnas.71.5.1819

Published

1974-05-00

Pages

1819-23

Language

English

Region

United States

NLM ID

7505876

PMCID

PMC388333

Subset

External Links

PubMed source DOI: 10.1073/pnas.71.5.1819 PMC Full Text View journal details

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