CHROMOSOMAL LOCALIZATION OF REPETITIVE DNA IN THE NEWT, TRITURUS

Barsacchi , Giuseppina; Gall , Joseph G.

doi:10.1083/jcb.54.3.580

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Article| September 01 1972

CHROMOSOMAL LOCALIZATION OF REPETITIVE DNA IN THE NEWT, TRITURUS

Giuseppina Barsacchi,

Giuseppina Barsacchi

From the Department of Biology, Yale University, New Haven, Connecticut 06520.

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Joseph G. Gall

From the Department of Biology, Yale University, New Haven, Connecticut 06520.

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Author and Article Information

Giuseppina Barsacchi

From the Department of Biology, Yale University, New Haven, Connecticut 06520.

Joseph G. Gall

From the Department of Biology, Yale University, New Haven, Connecticut 06520.

Dr Barsacchi's present address is the Istituto di Zoologia e Anatomia Comparata, Università di Pisa, 56100 Pisa, Italy.

Received: February 28 1972

Revision Received: May 19 1972

Online ISSN: 1540-8140

Print ISSN: 0021-9525

1972

J Cell Biol (1972) 54 (3): 580–591.

https://doi.org/10.1083/jcb.54.3.580

The repetitive DNA sequences of the newt, Triturus viridescens, have been studied by nucleic acid hybridization procedures. Complementary RNA was synthesized enzymatically from unfractionated newt DNA. This RNA hybridized strongly to the centromeric regions of both somatic and lampbrush chromosomes It also bound to other loci scattered along the lengths of the chromosomes The amplified ribosomal DNA in the multiple oocyte nucleoli was demonstrated by in situ hybridization

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