Document Detail


Genetic and molecular analyses of vgal: a spontaneous and unstable mutation at the vestigial locus in Drosophila melanogaster.
MedLine Citation:
PMID:  1909676     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We describe herein, a new unstable mutant of the vestigial locus, isolated from a French natural population. From this mutant vestigial almost (vgal) wild-type flies (vgal+) and extreme vg phenotypes (vge) arose spontaneously without genomic shock. The occurrence of vgal+ or vge alleles depends mostly on the breeding temperature; vgal+ revertants arose principally at low temperature (21 degrees C) and vge at 28 degrees C. These events occur mainly in the male germ line and the phenomenon appears to be premeiotic. Our results with in situ hybridization experiments and Southern blots show that the vgal mutation is due to a 2 kb DNA insertion, which is a deleted hobo element. Genetic and molecular analyses show that two distinct events may underly the wild-type revertants. One is the excision of the resident hobo element, the other a further deletion (about 300 bp in the example characterized herein). The vge mutation is probably due to a deletion of vestigial sequences flanking the hobo insertion.
Authors:
C Bazin; F Lemeunier; G Periquet; J Silber
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Genetical research     Volume:  57     ISSN:  0016-6723     ISO Abbreviation:  Genet. Res.     Publication Date:  1991 Jun 
Date Detail:
Created Date:  1991-10-17     Completed Date:  1991-10-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370741     Medline TA:  Genet Res     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  235-43     Citation Subset:  IM    
Affiliation:
Laboratoire de Génétique Quantitative et Moléculaire, Université Paris 7, CNRS URA 693, France.
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MeSH Terms
Descriptor/Qualifier:
Alleles
Animals
Chromosome Mapping
Crosses, Genetic
Drosophila melanogaster / genetics*
Female
Gonadal Dysgenesis / genetics
Male
Mutation*
Phenotype
Spermatozoa / abnormalities
Wing / abnormalities

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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