First molecular evidence for the existence of a Tardigrada + Arthropoda clade

Molecular Biology and Evolution
G GiribetC Ribera

Abstract

The complete 18S rDNA gene sequence of Macrobiotus group hufelandi (Tardigrada) was obtained and aligned with 18S rDNA and rRNA gene sequences of 24 metazoans (mainly protostomes). Discrete character (maximum-parsimony) and distance (neighbor-joining) methods were used to infer their phylogeny. The evolution of bootstrap proportions with sequence length (pattern of resolved nodes, PRN) was studied to test the resolution of the nodes in neighbor-joining trees. The results show that arthropods are monophyletic. Tardigrades represent the sister group of arthropods (in parsimony analyses) or they are related with crustaceans (distance analysis and PRN). Arthropoda are divided into two main evolutionary lines, the Hexapoda + Crustacea line (weakly supported), and the Myriapoda + Chelicerata line. The Hexapoda + Crustacea line includes Pentastomida, but the internal resolution is far from clear. The Insecta (Ectognatha) are monophyletic, but no evidence for the monophyly of Hexapoda is found. The Chelicerata are a monophyletic group and the Myriapoda cluster close to Arachnida. Overall, the results obtained represent the first molecular evidence for a Tardigrada + Arthropoda clade. In addition, the congruence between molecular phylog...Continue Reading

Citations

Oct 14, 2003·Cladistics : the International Journal of the Willi Hennig Society·Gonzalo GiribetCourtney Babbitt
Mar 27, 2004·Journal of Molecular Evolution·Frank E AndersonMikael Thollesson
Jul 28, 2007·Current Microbiology·Olivier Duron, Laurent Gavotte
Sep 19, 2003·Molecular Phylogenetics and Evolution·Christoph BleidornThomas Bartolomaeus
Jul 31, 2009·Proceedings. Biological Sciences·Georg Mayer, Paul M Whitington
Mar 24, 1999·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·G GiribetC Ribera
Nov 11, 2009·Molekuliarnaia biologiia·V V AleshinN B Petrov
Jan 18, 2011·BMC Evolutionary Biology·Bram VanthournoutFrederik Hendrickx
May 16, 2014·Proceedings. Biological Sciences·Shawn M ArellanoCraig M Young
Jul 22, 1997·Proceedings of the National Academy of Sciences of the United States of America·J W Valentine
Oct 23, 2010·Comptes rendus biologies·Marie-Catherine Boisselier-DubayleNicolas Vidal
Aug 29, 2014·BMC Evolutionary Biology·Mindi M Summers, Greg W Rouse
Oct 14, 2009·Molecular Phylogenetics and Evolution·Aslak JørgensenReinhardt M Kristensen
Oct 27, 2009·Arthropod Structure & Development·Stefan KoenemannBjörn M von Reumont
Dec 15, 2015·Zoological Science·Fernando Ángel Fernández-ÁlvarezAnnie Machordom
Jul 8, 2008·Molecular Phylogenetics and Evolution·Jérôme MurienneGonzalo Giribet
Oct 12, 2007·Molecular Phylogenetics and Evolution·Joseph C Spagna, Rosemary G Gillespie
Oct 16, 2007·Molecular Phylogenetics and Evolution·Falko RoedingThorsten Burmester
Dec 20, 2007·Arthropod Structure & Development·Hartmut Greven
Jan 2, 2007·Molecular Phylogenetics and Evolution·Hans KlompenWilliam C Black
Mar 11, 2009·Journal of Morphology·Kenneth Agerlin HalbergReinhardt Møbjerg Kristensen
May 18, 2012·Environmental Microbiology·Lindsay K NewboldAndrew S Whiteley
Dec 24, 2013·Ecology and Evolution·Justine ThubautSarah Samadi
Jun 1, 2012·Journal of Experimental Zoology. Part A, Ecological Genetics and Physiology·Thiruketheeswaran PrasathJochen D'Haese

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