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Repeated DNA sequences in fungi

Abstract

Several fungal species, representatives of all broad groups like basidiomycetes, ascomycetes and phycomycetes, were examined for the nature of repeated DNA sequences by DNA:DNA reassociation studies using hydroxyapatite chromatography. All of the fungal species tested contained 10 to 20 percent repeated DNA sequences. There are approximately 100 to 110 copies of repeated DNA sequences of approximately 4 x 10/sup 7/ daltons piece size of each. Repeated DNA sequence homoduplexes showed on average 5/sup 0/C difference of T/sub e/50 (temperature at which 50 percent duplexes dissociate) values from the corresponding homoduplexes of unfractionated whole DNA. It is suggested that a part of repetitive sequences in fungi constitutes mitochondrial DNA and a part of it constitutes nuclear DNA. (auth)
Authors:
Publication Date:
Nov 01, 1974
Product Type:
Journal Article
Reference Number:
ERA-02-003888; EDB-76-093530
Resource Relation:
Journal Name: Nucleic Acids Res.; (United Kingdom); Journal Volume: 1:11
Subject:
59 BASIC BIOLOGICAL SCIENCES; FUNGI; DNA; CELL NUCLEI; MITOCHONDRIA; MOLECULAR WEIGHT; BIOMASS; CELL CONSTITUENTS; ENERGY SOURCES; NUCLEIC ACIDS; ORGANIC COMPOUNDS; ORGANOIDS; PLANTS; RENEWABLE ENERGY SOURCES; 550200* - Biochemistry; 550700 - Microbiology
OSTI ID:
7151994
Research Organizations:
Howard Univ., Washington, DC
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NARHA
Submitting Site:
TIC
Size:
Pages: 1411-1420
Announcement Date:

Citation Formats

Dutta, S K. Repeated DNA sequences in fungi. United Kingdom: N. p., 1974. Web. doi:10.1093/nar/1.11.1411.
Dutta, S K. Repeated DNA sequences in fungi. United Kingdom. doi:10.1093/nar/1.11.1411.
Dutta, S K. 1974. "Repeated DNA sequences in fungi." United Kingdom. doi:10.1093/nar/1.11.1411. https://www.osti.gov/servlets/purl/10.1093/nar/1.11.1411.
@misc{etde_7151994,
title = {Repeated DNA sequences in fungi}
author = {Dutta, S K}
abstractNote = {Several fungal species, representatives of all broad groups like basidiomycetes, ascomycetes and phycomycetes, were examined for the nature of repeated DNA sequences by DNA:DNA reassociation studies using hydroxyapatite chromatography. All of the fungal species tested contained 10 to 20 percent repeated DNA sequences. There are approximately 100 to 110 copies of repeated DNA sequences of approximately 4 x 10/sup 7/ daltons piece size of each. Repeated DNA sequence homoduplexes showed on average 5/sup 0/C difference of T/sub e/50 (temperature at which 50 percent duplexes dissociate) values from the corresponding homoduplexes of unfractionated whole DNA. It is suggested that a part of repetitive sequences in fungi constitutes mitochondrial DNA and a part of it constitutes nuclear DNA. (auth)}
doi = {10.1093/nar/1.11.1411}
journal = {Nucleic Acids Res.; (United Kingdom)}
volume = {1:11}
journal type = {AC}
place = {United Kingdom}
year = {1974}
month = {Nov}
}