Universität zu Köln

Simon, Sabrina ORCID: 0000-0001-8560-0985, Blanke, Alexander and Meusemann, Karen (2018). Reanalyzing the Palaeoptera problem - The origin of insect flight remains obscure. Arthropod Struct. Dev., 47 (4). S. 328 - 339. OXFORD: ELSEVIER SCI LTD. ISSN 1873-5495

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Abstract

The phylogenetic relationships of the winged insect lineages - mayflies (Ephemeroptera), damselflies and dragonflies (Odonata), and all other winged insects (Neoptera) - are still controversial with three hypotheses supported by different datasets: Palaeoptera, Metapterygota and Chiastomyaria. Here, we reanalyze available phylogenomic data with a focus on detecting confounding and alternative signal. In this context, we provide a framework to quantitatively evaluate and assess incongruent molecular phylogenetic signal inherent in phylogenomic datasets. Despite overall support for the Palaeoptera hypothesis, we also found considerable signal for Chiastomyaria, which is not easily detectable by standardized tree inference approaches. Analyses of the accumulation of signal across gene partitions showed that signal accumulates gradually. However, even in case signal only slightly supported one over the other hypothesis, topologies inferred from large datasets switch from statistically strongly supported Palaeoptera to strongly supported Chiastomyaria. From a morphological point of view, Palaeoptera currently appears to be the best-supported hypothesis; however, recent analyses were restricted to head characters. Phylogenetic approaches covering all organ systems including analyses of potential functional or developmental convergence are still pending so that the Palaeoptera problem has to be considered an open question in insect systematics. (C) 2018 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Simon, Sabrina UNSPECIFIED orcid.org/0000-0001-8560-0985 UNSPECIFIED Blanke, Alexander UNSPECIFIED UNSPECIFIED UNSPECIFIED Meusemann, Karen UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-180223
DOI:	10.1016/j.asd.2018.05.002
Journal or Publication Title:	Arthropod Struct. Dev.
Volume:	47
Number:	4
Page Range:	S. 328 - 339
Date:	2018
Publisher:	ELSEVIER SCI LTD
Place of Publication:	OXFORD
ISSN:	1873-5495
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language WING BASE SCLERITES; PHYLOGENETIC POSITION; MITOCHONDRIAL GENOME; COMPOSITIONAL HETEROGENEITY; MOLECULAR PHYLOGENY; SEQUENCE ALIGNMENT; PROTEIN EVOLUTION; MODEL SELECTION; DNA-SEQUENCES; ALIGNED 18S Multiple languages Entomology Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/18022