Universität zu Köln

Schiffer, Philipp H., Nsah, Ndifon A., Grotehusmann, Henny, Kroiher, Michael, Loer, Curtis and Schierenberg, Einhard (2014). Developmental variations among Panagrolaimid nematodes indicate developmental system drift within a small taxonomic unit. Dev. Genes Evol., 224 (3). S. 183 - 189. NEW YORK: SPRINGER. ISSN 1432-041X

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Abstract

Comparative studies of nematode embryogenesis among different clades revealed considerable variations. However, to what extent developmental differences exist between closely related species has mostly remained nebulous. Here, we explore the correlation between phylogenetic neighborhood and developmental variation in a restricted and morphologically particularly uniform taxonomic group (Panagrolaimidae) to determine to what extent (1) morphological and developmental characters go along with molecular data and thus can serve as diagnostic tools for the definition of kinship and (2) developmental system drift (DSD; modifications of developmental patterns without corresponding morphological changes) can be found within a small taxonomic unit. Our molecular approaches firmly support subdivision of Panagrolaimid nematodes into two monophyletic groups. These can be discriminated by distinct peculiarities in early embryonic cell lineages and a mirror-image expression pattern of the gene skn-1. This suggests major changes in the logic of cell specification and the action of DSD in the studied representatives of the two neighboring nematode taxa.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Schiffer, Philipp H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Nsah, Ndifon A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Grotehusmann, Henny UNSPECIFIED UNSPECIFIED UNSPECIFIED Kroiher, Michael UNSPECIFIED UNSPECIFIED UNSPECIFIED Loer, Curtis UNSPECIFIED UNSPECIFIED UNSPECIFIED Schierenberg, Einhard UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-436632
DOI:	10.1007/s00427-014-0471-2
Journal or Publication Title:	Dev. Genes Evol.
Volume:	224
Number:	3
Page Range:	S. 183 - 189
Date:	2014
Publisher:	SPRINGER
Place of Publication:	NEW YORK
ISSN:	1432-041X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language EVOLUTION; ELEGANS; PROTEIN; SKN-1 Multiple languages Cell Biology; Evolutionary Biology; Developmental Biology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/43663