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A morphometrics-based phylogeny of the temperate Gondwanan mite harvestmen (Opiliones, Cyphophthalmi, Pettalidae)

2010; Wiley; Volume: 48; Issue: 4 Linguagem: Inglês

10.1111/j.1439-0469.2009.00562.x

1439-0469

Benjamin L. De Bivort, Ronald M. Clouse, Gonzalo Giribet,

Aquatic Invertebrate Ecology and Behavior

Journal of Zoological Systematics and Evolutionary ResearchVolume 48, Issue 4 p. 294-309 A morphometrics-based phylogeny of the temperate Gondwanan mite harvestmen (Opiliones, Cyphophthalmi, Pettalidae) Una filogenia de los cifoftalmos (Opiliones, Cyphophthalmi, Pettalidae) de la Gondwana templada basada en análisis morfométricos Benjamin L. De Bivort, Benjamin L. De Bivort Rowland Institute at Harvard, Department of Organismic and Evolutionary Biology, and Museum of Comparative Zoology, Harvard University, Cambridge, MA, USASearch for more papers by this authorRonald M. Clouse, Ronald M. Clouse Rowland Institute at Harvard, Department of Organismic and Evolutionary Biology, and Museum of Comparative Zoology, Harvard University, Cambridge, MA, USASearch for more papers by this authorGonzalo Giribet, Gonzalo Giribet Rowland Institute at Harvard, Department of Organismic and Evolutionary Biology, and Museum of Comparative Zoology, Harvard University, Cambridge, MA, USASearch for more papers by this author Benjamin L. De Bivort, Benjamin L. De Bivort Rowland Institute at Harvard, Department of Organismic and Evolutionary Biology, and Museum of Comparative Zoology, Harvard University, Cambridge, MA, USASearch for more papers by this authorRonald M. Clouse, Ronald M. Clouse Rowland Institute at Harvard, Department of Organismic and Evolutionary Biology, and Museum of Comparative Zoology, Harvard University, Cambridge, MA, USASearch for more papers by this authorGonzalo Giribet, Gonzalo Giribet Rowland Institute at Harvard, Department of Organismic and Evolutionary Biology, and Museum of Comparative Zoology, Harvard University, Cambridge, MA, USASearch for more papers by this author First published: 03 February 2010 https://doi.org/10.1111/j.1439-0469.2009.00562.xCitations: 31 Corresponding author: Benjamin L. de Bivort (debivort@netrider.rowland.org)Contributing authors: Ronald M. Clouse (clouse@fas.harvard.edu), Gonzalo Giribet (ggiribet@oeb.harvard.edu) Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstracten A phylogenetic estimation of the temperate Gondwanan mite harvestman family Pettalidae (Arachnida, Opiliones, Cyphophthalmi) was conducted using 143 morphological variables (59 raw and 84 scaled measurements) from 37 ingroup and 15 outgroup terminals. We used custom algorithms to do pairwise comparisons between characters and identify sets of dependent characters, which were collapsed using principal components analysis. We analysed the resulting data without discretization under the parsimony criterion. Monophyly or paraphyly of most groups suspected from previous molecular and morphological phylogenetic studies were recovered. Trees were optimized for monophyly of 20 different focus clades by varying character phylogenetic independence. This yielded a final tree with monophyly of 15 out of 20 focus clades, including the South African pettalids, which contains the troglomorphic species Speleosiro argasiformis Lawrence, 1931. Two of the remaining five clades were found paraphyletic, with the genera Aoraki, Rakaia, and Siro always being found polyphyeletic. Résumenes Se investiga la filogenia de los cifoftalmos gondwánicos de la familia Pettalidae (Arachnida, Opiliones, Cyphophthalmi) mediante la utilización de 143 variables morfológicas (59 variables sin transformar y 84 medidas transformadas) de 37 taxones terminales internos y 15 grupos externos. Para ello, se utilizan algoritmos diseñados especialmente para hacer comparaciones dos a dos entre caracteres e identificar los conjuntos de caracteres dependientes, los cuales son colapsados mediante un análisis de componentes principales. Los datos resultantes fueron analizados sin necesidad de discretización, utilizando parsimonia como criterio de optimalidad. De este modo se obtuvo la monofilia o parafilia de varios grupos, como ya se había obtenido en otros análisis con otros datos morfológicos o moleculares. Los árboles obtenidos en los análisis morfométricos fueron optimizados para la monofilia de 20 clados postulados en estudios anteriores mediante la variación de los parámetros de independencia de caracteres. Esto produjo un cladograma final donde 15 de los 20 grupos postulados eran monofiléticos, incluyendo los petálidos sudafricanos, que incluyen la especie troglomorfa Speleosiro argasiformis Lawrence, 1931. Dos de los otros grupos aparecen como parafiléticos, mientras que los géneros Aoraki, Rakaia y Siro siempre son polifiléticos. Citing Literature Supporting Information Appendix S1. List of species studied, including author names and localities Appendix S2. Custom scripts used in Independence Analysis, with annotation Filename Description JZS_562_sm_appendix_S1_s2.doc157 KB Supporting info item Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article. Volume48, Issue4November 2010Pages 294-309 RelatedInformation