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dc.contributor.author Blanke, Alexander
dc.contributor.author Greve, Carola
dc.contributor.author Wipfler, Benjamin
dc.contributor.author Beutel, Rolf
dc.contributor.author Holland, Barbara
dc.contributor.author Misof, Bernhard
dc.date.accessioned 2012-11-16T16:45:33Z
dc.date.available 2012-11-16T16:45:33Z
dc.date.issued 2012-11-23
dc.identifier doi:10.5061/dryad.1q3b6
dc.identifier.citation Blanke A, Greve C, Wipfler B, Beutel R, Holland B, Misof B (2012) The identification of concerted convergence in insect heads corroborates Palaeoptera. Systematic Biology 62(2): 250-263.
dc.identifier.uri http://hdl.handle.net/10255/dryad.40270
dc.description The relationships of the three major clades of winged insects - Ephemeroptera, Odonata and Neoptera - are still unclear. Many morphologists favor a clade Metapterygota (Odonata+Neoptera), but Chiastomyaria (Ephemeroptera+Neoptera) or Palaeoptera (Ephemeroptera+Odonata) have also been supported in some older and more recent studies. A possible explanation for the difficulties in resolving these relationships is concerted convergence - the convergent evolution of entire character complexes under the same or similar selective pressures. In this study we analyse possible instances of this phenomenon in the context of head structures of Ephemeroptera, Odonata and Neoptera. We apply a recently introduced formal approach to detect the occurrence of concerted convergence. We found that characters of the tentorium and mandibles in particular, but also some other head structures, have apparently not evolved independently, and thus can cause artefacts in tree reconstruction. Our subsequent analyses, which exclude character sets that may be affected by concerted convergence, corroborate the Palaeoptera concept. We show that the analysis of homoplasy and its influence on tree inference can be formally improved with important consequences for the identification of incompatibilities between datasets. Our results suggest that modified weighting (or exclusion of characters) in cases of formally identified correlated cliques of characters may improve morphology based tree reconstruction.
dc.relation.haspart doi:10.5061/dryad.1q3b6/1
dc.relation.haspart doi:10.5061/dryad.1q3b6/2
dc.relation.haspart doi:10.5061/dryad.1q3b6/3
dc.relation.haspart doi:10.5061/dryad.1q3b6/4
dc.relation.haspart doi:10.5061/dryad.1q3b6/5
dc.relation.haspart doi:10.5061/dryad.1q3b6/6
dc.relation.haspart doi:10.5061/dryad.1q3b6/7
dc.relation.isreferencedby doi:10.1093/sysbio/sys091
dc.relation.isreferencedby PMID:23179601
dc.subject character clique
dc.subject homoplasy
dc.subject mouthparts
dc.subject convergent evolution
dc.title Data from: The identification of concerted convergence in insect heads corroborates Palaeoptera
dc.type Article *
dwc.ScientificName Ephemeroptera
dwc.ScientificName Odonata
dwc.ScientificName Metapterygota
dwc.ScientificName Chiastomyaria
dwc.ScientificName Palaeoptera
dc.contributor.correspondingAuthor Blanke, Alexander
prism.publicationName Systematic Biology

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Title ES_1_morph_Matrix
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Description Electronic supplement (ES) 1 Morphological data matrix of head characters (complete dataset) used for the initial tree reconstructions with clique affiliation indicated in columns 2-4.
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Title ES_2_initial_morph_trees
Downloaded 41 times
Description Electronic supplement (ES) 2 Initial tree inference of the complete morphological data set with detailed support values for each node. A RaxML bootstrap supports; B Bremer supports; C Posterior probabilities; D Parsimony bootstrap supports.
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Title ES_3_initial_mol_trees
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Description Electronic supplement (ES) 3 Tree inference of the molecular data set with detailed support values for each node. A RaxML bootstrap supports; B Posterior probabilities.
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Title ES_4_pairwise_excess_matrix_detailed
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Description Electronic supplement (ES) 4 Matrix containing the pairwise excess indices for each character of the complete morphological data matrix used for subsequent UPGMA analysis.
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Title ES_5_clique_details
Downloaded 46 times
Description Electronic supplement (ES) 5 UPGMA clustering of the dissimilarity values calculated in the pairwise excess index matrix (Fig. 4) showing all character numbers of the morphological data matrix. Clustered characters are indicated by a vertical terminal line. The two cliques and the remaining character subset are indicated by grey boxes.
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Title ES_6_post_clique_morph_tree_details
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Description Electronic supplement (ES) 6 Tree inference of the remaining morphological data (referring to Fig. 6C) after convergence analysis with detailed support values for each node. a) RaxML bootstrap supports; b) Bremer supports; c) Posterior probabilities; d) Parsimony bootstrap supports.
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Title ES_7_reduced_dataset_analysis
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Description Electronic supplement (ES) 7 Cliques and subsequent tree inference derived from the reduced dataset excluding morphological characters with an excess of 0 and 1 (see pictogram of Figure 4a).
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