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Metadata of the article that will be visualized in OnlineFirst ArticleTitle Evolution of squat lobsters (Crustacea, Galatheoidea): mitogenomic data suggest an early divergent Porcellanidae Article Sub-Title Article CopyRight Springer Nature Switzerland AG (This will be the copyright line in the final PDF) Journal Name Hydrobiologia Corresponding Author Family Name Palero Particle Given Name Ferran Suffix Division Department of Invertebrate Zoology and Hydrobiology, Faculty of Biology and Environmental Protection Organization University of Lodz Address ul. Banacha 12/16, 90-237, Łódź, Poland Division Organization Centre d’Estudis Avançats de Blanes (CEAB-CSIC) Address Carrer d’Accés a la Cala Sant Francesc 14, 17300, Blanes, Spain Phone Fax Email [email protected] URL ORCID http://orcid.org/0000-0002-0343-8329 Author Family Name Rodríguez-Flores Particle Given Name Paula C. Suffix Division Organization Centre d’Estudis Avançats de Blanes (CEAB-CSIC) Address Carrer d’Accés a la Cala Sant Francesc 14, 17300, Blanes, Spain Division Organization Museo Nacional de Ciencias Naturales (MNCN-CSIC) Address José Gutiérrez Abascal, 2, 28006, Madrid, Spain Phone Fax Email [email protected] URL ORCID Author Family Name Cabezas Particle Given Name Patricia Suffix Division Organization Museo Nacional de Ciencias Naturales (MNCN-CSIC) Address José Gutiérrez Abascal, 2, 28006, Madrid, Spain Phone Fax Email [email protected] URL ORCID Author Family Name Machordom Particle Given Name Annie Suffix Division Organization Museo Nacional de Ciencias Naturales (MNCN-CSIC) Address José Gutiérrez Abascal, 2, 28006, Madrid, Spain Phone Fax Email [email protected] URL ORCID Author Family Name Macpherson Particle Given Name Enrique Suffix Division Organization Centre d’Estudis Avançats de Blanes (CEAB-CSIC) Address Carrer d’Accés a la Cala Sant Francesc 14, 17300, Blanes, Spain Phone Fax Email [email protected] URL ORCID Author Family Name Corbari Particle Given Name Laure Suffix Division Organization Institut de Systématique, Évolution, Biodiversité (ISYEB UMR 7205), Muséum national d’Histoire naturelle, CNRS, Sorbonne Université, EPHE Address 57 rue Cuvier, CP 51, 75005, Paris, France Phone Fax Email [email protected] URL ORCID Received 1 October 2018 Schedule Revised 19 January 2019 Accepted 25 January 2019 Abstract Squat lobsters constitute an exceptional group to address evolutionary studies in marine species because of their high diversity at multiple taxonomic levels. The families included within Galatheoidea are characterized by morphological, molecular, and ecological differences. Previous phylogenetic reconstructions have considered either Galatheidae, Porcellanidae, or even Munidopsidae as the most derived family within Galatheoidea, but evolutionary relationships within the superfamily have not been fully resolved yet. In order to test previous phylogenetic hypotheses on the relative placement of Porcellanidae within the Galatheoidea, and further characterize mitochondrial gene order in Munidopsidae, the first complete mitochondrial genomic sequence of a Galatheidae squat lobster (Galathea aegyptiaca) and the partial mitogenome of Munidopsis polymorpha are reported here. These new sequences complement previous studies to include all extant families and provide further evidence on the importance of mitochondrial gene rearrangements in Galatheoidea. Implications of the new phylogenetic data on the evolution of carcinization within Anomura are also discussed. Keywords (separated by '-') Crustacea - Gene rearrangement - Deep sea - Squat lobsters - Mitochondrial evolution Footnote Information Handling editor: Begoña Santos Hydrobiologia https://doi.org/10.1007/s10750-019-3898-7 (0123456789().,-volV)(0123456789().,-volV) 1 PRIMARY RESEARCH PAPER 2 Evolution of squat lobsters (Crustacea, Galatheoidea): 3 mitogenomic data suggest an early divergent Porcellanidae 4 Ferran Palero . Paula C. Rodrı´guez-Flores . Patricia Cabezas . 5 Annie Machordom . Enrique Macpherson . Laure Corbari Author Proof 6 Received: 1 October 2018 / Revised: 19 January 2019 / Accepted: 25 January 2019 7 Ó Springer Nature Switzerland AG 2019 8 Abstract Squat lobsters constitute an exceptional not been fullyPROOF resolvedPROOF yet. In order to test previous 18 9 group to address evolutionary studies in marine phylogenetic hypotheses on the relative placement of 19 10 species because of their high diversity at multiple Porcellanidae within the Galatheoidea, and further 20 11 taxonomic levels. The families included within characterize mitochondrial gene order in Munidopsi- 21 12 Galatheoidea are characterized by morphological, dae, the first complete mitochondrial genomic 22 13 molecular, and ecological differences. Previous phy- sequence of a Galatheidae squat lobster (Galathea 23 14 logenetic reconstructions have considered either aegyptiaca) and the partial mitogenome of Munidop- 24 15 Galatheidae, Porcellanidae, or even Munidopsidae as sis polymorpha are reported here. These new 25 16 the most derived family within Galatheoidea, but sequences complement previous studies to include 26 17 evolutionary relationships within the superfamily have all extant families and provide further evidence on the 27 importance of mitochondrial gene rearrangements in 28 Galatheoidea. Implications of the new phylogenetic 29 A1 Handling editor: Begon˜a Santos A2 F. Palero (&) A21 L. Corbari A3 Department of Invertebrate Zoology and Hydrobiology, A22 Institut de Syste´matique, E´ volution, Biodiversite´ (ISYEB A4 Faculty of Biology and Environmental Protection, A23 UMR 7205), Muse´um national d’Histoire naturelle, A5 University of Lodz, ul. Banacha 12/16, 90-237 Ło´dz´, A24 CNRS, Sorbonne Universite´, EPHE, 57 rue Cuvier, CP A6 Poland A25 51, 75005 Paris, France A7 e-mail: [email protected] A26 e-mail: [email protected] A8 F. Palero Á P. C. Rodrı´guez-Flores Á E. Macpherson A9 Centre d’Estudis Avanc¸ats de Blanes (CEAB-CSIC), A10 Carrer d’Acce´s a la Cala Sant Francesc 14, 17300 Blanes, A11 Spain A12 e-mail: [email protected] A13 E. Macpherson A14 e-mail: [email protected] A15 P. C. Rodrı´guez-Flores Á P. Cabezas Á A. Machordom A16 Museo Nacional de Ciencias Naturales (MNCN-CSIC), A17 Jose´ Gutie´rrez Abascal, 2, 28006 Madrid, Spain A18 e-mail: [email protected] A19 A. Machordom A20 e-mail: [email protected] 123 Journal : Medium 10750 Dispatch : 2-2-2019 Pages : 12 Article No. : 3898 h LE h TYPESET MS Code : HYDR-D-18-00797 h44CP h DISK Hydrobiologia 30 data on the evolution of carcinization within Anomura (Porcellanidae) are the only galatheoids with a crab- 74 31 are also discussed. like body form. They have the entire pleon folded 75 under the cephalothorax, and their carapace is usually 76 32 Keywords Crustacea Á Gene rearrangement Á Deep broader than long (Ahyong et al., 2010; Keiler et al., 77 33 sea Á Squat lobsters