Is There a Gene Regulating the Scute Locus on the Third Chromosome of D. MELANOGASTER?
AUTOR(ES)
Rendel, J. M.
RESUMO
A section of the third chromosome of D. melanogaster some 25 to 40 centimorgans long including sr was transferred from a wild-type stock selected by Latter for high scutellar bristle number into a scute stock with a large number of scutellar bristles. This segment is shown to have a large effect on the bristle numbers of wild-type flies, to reduce the strength of canalization of the scute phenotype at 4 bristles, to have little, if any, effect on bristle numbers of scute flies with less than 4 bristles but to increase the number of flies with 5 and 6 scutellar bristles in scute stocks that normally have a large number of flies with 4 bristles. It is suggested that this segment in unselected chromosomes contains a gene that regulates bristle number by repressing the scute locus and that Latter has selected a mutant of the regulator which fails to repress the action of the scute locus.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1213533Documentos Relacionados
- Phenogenetic Studies in Scute of D. Melanogaster III. the Effect of Temperature on Scute
- Chromosome Studies in Wild Populations of D. MELANOGASTER
- Some Observations on the Structure of the Scute-8 Chromosome of Drosophila Melanogaster
- DNA map of mutations at the scute locus of Drosophila melanogaster
- Is Esterase-P Encoded by a Cryptic Pseudogene in Drosophila Melanogaster?
