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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1987-4-13
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pubmed:abstractText |
X-Ray- and neutron-induced mutations at the white locus of Drosophila melanogaster were used to study the nature of radiation-induced genetic damage. Genetic analysis showed the presence of multi-locus deficiencies in 15 out of 31 X-ray mutants and in 26 out of 35 mutants induced by neutrons. The DNA from 11 X-ray and 4 neutron mutants, which were not multi-locus deficiencies, was analyzed by Southern blot-hybridization. Deletions were observed in 2 X-ray and 1 neutron mutant. In combination with cytogenetic techniques, chromosomal rearrangements affecting the white locus (translocations, inversions, etc.) were identified in 3 X-ray and in 2 neutron mutants. A hot-spot for translocation breakpoints was identified in the left arm of the third chromosome. 5 X-ray mutants, which apparently did not contain large deletions, were subjected to further analysis by the nuclease S1 protection method, after cloning of the white gene. In 4 mutants a small deletion could indeed be detected in this way. Thus it seems that by far the main part of X-ray- and neutron-induced white mutants have arisen through large changes in the white gene, especially deletions.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Mar
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pubmed:issn |
0027-5107
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
177
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
101-15
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2881201-Animals,
pubmed-meshheading:2881201-Chromosome Deletion,
pubmed-meshheading:2881201-DNA,
pubmed-meshheading:2881201-Drosophila melanogaster,
pubmed-meshheading:2881201-Female,
pubmed-meshheading:2881201-Genes,
pubmed-meshheading:2881201-Genes, Lethal,
pubmed-meshheading:2881201-Genetic Complementation Test,
pubmed-meshheading:2881201-Male,
pubmed-meshheading:2881201-Mutation,
pubmed-meshheading:2881201-Neutrons,
pubmed-meshheading:2881201-Polymorphism, Restriction Fragment Length,
pubmed-meshheading:2881201-Spermatozoa,
pubmed-meshheading:2881201-X-Rays
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pubmed:year |
1987
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pubmed:articleTitle |
The nature of radiation-induced mutations at the white locus of Drosophila melanogaster.
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pubmed:publicationType |
Journal Article,
Comparative Study
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