The role of homeotic genes in determining the segmental pattern of chordotonal organs in Drosophila

Wong, D. C. C. and Merritt, D. J. (2002) The role of homeotic genes in determining the segmental pattern of chordotonal organs in Drosophila. International Journal of Developmental Biology, 46 4: 475-481.

Author Wong, D. C. C.
Merritt, D. J.
Title The role of homeotic genes in determining the segmental pattern of chordotonal organs in Drosophila
Journal name International Journal of Developmental Biology   Check publisher's open access policy
ISSN 0214-6282
Publication date 2002-01-01
Year available 2002
Sub-type Article (original research)
Open Access Status Not yet assessed
Volume 46
Issue 4
Start page 475
End page 481
Total pages 7
Place of publication Bilbao, Spain
Publisher UBC Press
Language eng
Subject C1
270504 Invertebrate Biology
779904 Control of pests and exotic species
Abstract The homeotic genes are instrumental in establishing segment-specific characteristics. In Drosophila embryos there is ample evidence that the homeotic genes are involved in establishing the differences in the pattern of sense organs between segments. The chordotonal organs are compound sense organs made up of several stretch receptive sensilla. A set of serially homologous chordotonal organs, Ich3 in the 1(st) thoracic segment, dch3 in the 2(nd) and 3(rd) thoracic segments and Ich5 in abdominal segments 1 to 7, is composed of different numbers of sensilla with different positions and orientations. Here we examine this set of sense organs and a companion set, vchA/B and vch 1, in the wild type and mutants for Sex combs reduced, Antennapedia, Ultrabithorax, and abdominal-A, using immunostaining. Mutant phenotypes indicate that Ultrabithorax and abdominal-A in particular influence the formation of these sense organs. Differential expression of abdominal-A and Ultrabithorax within compartments of individual parasegments can precisely modulate the types of sense organs that will arise from a segment.
Keyword Developmental Biology
Sense Organs
Pns
Homeosis
Drosophila
Bithorax Complex
Antennapedia Complex
Peripheral Nervous-system
Ultrabithorax Proteins
Embryonic Pns
Melanogaster
Expression
Specification
Organization
Precursors
Induction
Q-Index Code C1
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
School of Biological Sciences Publications
 
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Created: Wed, 15 Aug 2007, 03:26:41 EST