Universität zu Köln

Janssen, Ralf ORCID: 0000-0002-4026-4129, Turetzek, Natascha and Pechmann, Matthias (2022). Lack of evidence for conserved parasegmental grooves in arthropods. Dev. Genes Evol., 232 (1). S. 27 - 38. NEW YORK: SPRINGER. ISSN 1432-041X

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Abstract

In the arthropod model species Drosophila melanogaster, a dipteran fly, segmentation of the anterior-posterior body axis is under control of a hierarchic gene cascade. Segmental boundaries that form morphological grooves are established posteriorly within the segmental expression domain of the segment-polarity gene (SPG) engrailed (en). More important for the development of the fly, however, are the parasegmental boundaries that are established at the interface of en expressing cells and anteriorly adjacent wingless (wg) expressing cells. In Drosophila, both segmental and transient parasegmental grooves form. The latter are positioned anterior to the expression of en. Although the function of the SPGs in establishing and maintaining segmental and parasegmental boundaries is highly conserved among arthropods, parasegmental grooves have only been reported for Drosophila, and a spider (Cupiennius salei). Here, we present new data on en expression, and re-evaluate published data, from four distantly related spiders, including Cupiennius, and a distantly related chelicerate, the harvestman Phalangium opilio. Gene expression analysis of en genes in these animals does not corroborate the presence of parasegmental grooves. Consequently, our data question the general presence of parasegmental grooves in arthropods.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Janssen, Ralf UNSPECIFIED orcid.org/0000-0002-4026-4129 UNSPECIFIED Turetzek, Natascha UNSPECIFIED UNSPECIFIED UNSPECIFIED Pechmann, Matthias UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-672186
DOI:	10.1007/s00427-022-00684-5
Journal or Publication Title:	Dev. Genes Evol.
Volume:	232
Number:	1
Page Range:	S. 27 - 38
Date:	2022
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1432-041X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language ENGRAILED-RELATED GENES; SEGMENT FORMATION; PHYLOGENETIC ANALYSIS; STRIGAMIA-MARITIMA; EXPRESSION; WINGLESS; CENTIPEDE; INSECT; PATTERNS Multiple languages Cell Biology; Evolutionary Biology; Developmental Biology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/67218