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Non-random intrachromosomal distribution of radiation-induced chromatid aberrations in Vicia faba. [Aberration clustering]

Journal Article:

Abstract

A reconstructed karyotype of Vicia faba, with all chromosomes individually distinguishable, was treated with X-rays, fast neutrons, (/sup 3/H) uridine (/sup 3/HU). The distribution within metaphase chromosomes of induced chromatid aberrations was non-random for all agents used. Aberration clustering, in part agent specific, occurred in chromosome segments containing heterochromatin as defined by the presence of G bands. The pattern of aberration clustering found after treatment with /sup 3/HU did not allow the recognition of chromosome regions active in transcription during treatment. Furthermore, it was impossible to obtain unambiguous indications of the presence of AT- and GC-base clusters from the patterns of /sup 3/HT- and /sup 3/HC-induced chromatid aberrations, respectively. Possible reasons underlying these observations are discussed.
Authors:
Schubert, I; Rieger, R [1] 
  1. Akademie der Wissenschaften der DDR, Gatersleben. Zentralinst. fuer Genetik und Kulturpflanzenforschung
Publication Date:
Apr 01, 1976
Product Type:
Journal Article
Reference Number:
AIX-07-257440; EDB-77-008871
Resource Relation:
Journal Name: Mutat. Res.; (Netherlands); Journal Volume: 35:1
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CHROMOSOMAL ABERRATIONS; RADIOINDUCTION; VICIA; BIOLOGICAL RADIATION EFFECTS; BETA SOURCES; CELL CYCLE; CHROMATIDS; COMPARATIVE EVALUATIONS; CYTIDINE; FAST NEUTRONS; HETEROCHROMATIN; KARYOTYPE; RADIATION DOSES; ROOTS; SPATIAL DISTRIBUTION; STATISTICS; THYMIDINE; TRITIUM COMPOUNDS; URIDINE; X RADIATION; AZINES; BARYONS; BIOLOGICAL EFFECTS; BIOMASS; CHROMATIN; DISTRIBUTION; DOSES; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY SOURCES; FERMIONS; HADRONS; HETEROCYCLIC COMPOUNDS; HYDROXY COMPOUNDS; IONIZING RADIATIONS; LABELLED COMPOUNDS; LEGUMINOSAE; MATHEMATICS; MUTATIONS; NEUTRONS; NUCLEONS; NUCLEOSIDES; NUCLEOTIDES; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PARTICLE SOURCES; PLANTS; PYRIMIDINES; RADIATION EFFECTS; RADIATION SOURCES; RADIATIONS; RENEWABLE ENERGY SOURCES; RIBOSIDES; URACILS; 560141* - Radiation Effects on Plants- Basic Studies- (-1987)
OSTI ID:
7333876
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: MUREA
Submitting Site:
INIS
Size:
Pages: 79-90
Announcement Date:

Journal Article:

Citation Formats

Schubert, I, and Rieger, R. Non-random intrachromosomal distribution of radiation-induced chromatid aberrations in Vicia faba. [Aberration clustering]. Netherlands: N. p., 1976. Web.
Schubert, I, & Rieger, R. Non-random intrachromosomal distribution of radiation-induced chromatid aberrations in Vicia faba. [Aberration clustering]. Netherlands.
Schubert, I, and Rieger, R. 1976. "Non-random intrachromosomal distribution of radiation-induced chromatid aberrations in Vicia faba. [Aberration clustering]." Netherlands.
@misc{etde_7333876,
title = {Non-random intrachromosomal distribution of radiation-induced chromatid aberrations in Vicia faba. [Aberration clustering]}
author = {Schubert, I, and Rieger, R}
abstractNote = {A reconstructed karyotype of Vicia faba, with all chromosomes individually distinguishable, was treated with X-rays, fast neutrons, (/sup 3/H) uridine (/sup 3/HU). The distribution within metaphase chromosomes of induced chromatid aberrations was non-random for all agents used. Aberration clustering, in part agent specific, occurred in chromosome segments containing heterochromatin as defined by the presence of G bands. The pattern of aberration clustering found after treatment with /sup 3/HU did not allow the recognition of chromosome regions active in transcription during treatment. Furthermore, it was impossible to obtain unambiguous indications of the presence of AT- and GC-base clusters from the patterns of /sup 3/HT- and /sup 3/HC-induced chromatid aberrations, respectively. Possible reasons underlying these observations are discussed.}
journal = {Mutat. Res.; (Netherlands)}
volume = {35:1}
journal type = {AC}
place = {Netherlands}
year = {1976}
month = {Apr}
}