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Maternal effects of zygotic mutants affecting early neurogenesis inDrosophila

Maternal effects of zygotic mutants affecting early neurogenesis inDrosophila

Authors :
J. A. Campos-Ortega
F. Jiménez
Source :
Wilhelm Roux's Archives of Developmental Biology. 191:191-201
Publication Year :
1982
Publisher :
Springer Science and Business Media LLC, 1982.

Abstract

The size of the neurogenic region ofDrosophila melanogaster is under the control of several genes of zygotic expression. Lack of function from any of those genes produces an increase of the size of the neurogenic region at the expense of the epidermal anlage. However, differences exist in the extent of neuralisation achieved by each of the genetic loci upon mutation. The present results show that in the case ofN andmam phenotype differences are due to different contributions of maternal gene expression. This could be shown by studying the phenotype which appeared in mutant embryos when the oocytes developed from homozygous mutant precursor cells. Clones of mutant cells were induced in the germ line of females heterozygous for the neurogenic mutationin trans over germ line dependent, dominant female sterile mutations. After removing maternal information the phenotype ofN andmam mutants became identical in both cases. Furthermore maternal information fromN+ was found to be necessary for viability of the wildtype.

Details

ISSN :
1432041X and 03400794
Volume :
191
Database :
OpenAIRE
Journal :
Wilhelm Roux's Archives of Developmental Biology
Accession number :
edsair.doi.dedup.....707202ed03431e4e5da974f070914f9f
Full Text :
https://doi.org/10.1007/bf00848335