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. 1986 Jan;5(1):135–141. doi: 10.1002/j.1460-2075.1986.tb04187.x

The Antennapedia gene is required and expressed in parasegments 4 and 5 of the Drosophila embryo

Alfonso Martinez-Arias 1
PMCID: PMC1166705  PMID: 16453662

Abstract

Transcripts homologous to the 5' exon of the Antp gene accumulate in parasegments 4 and 5 of the Drosophila embryo, where analysis of the cuticular phenotype of Antennapedia- (Antp-) embryos shows that there is a genetic requirement for the Antp gene. The pattern of Antp expression is different in different germ layers; the mesoderm expresses Antp only in parasegment 5; in the developing nervous system and the epidermis the pattern of expression is complex and suggests that interactions between different selector genes take place during wild-type development. Both genetic requirements and gene expression indicate that Antennapedia is the main morphological determinant in parasegment 4; in parasegment 5 it probably acts in concert with other selector genes.

Keywords: Antennapedia gene, Drosophila, parasegments, gene expression

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