FN Archimer Export Format PT J TI Taxonomy and Molecular Phylogenetics of Ensiculiferaceae, fam. nov. (Peridiniales, Dinophyceae), with Consideration of their Life-history BT AF Li, Zhun Mertens, Kenneth Gottschling, Marc Gu, Haifeng Söhner, Sylvia Price, Andrea M. Marret, Fabienne Pospelova, Vera Smith, Kirsty F. Carbonell-Moore, Consuelo NEZAN, Elisabeth Bilien, Gwenael Shin, Hyeon Ho AS 1:1;2:2;3:3;4:4;5:3;6:5,6;7:7;8:8,9;9:10;10:11;11:2,12;12:2;13:13; FF 1:;2:PDG-ODE-LITTORAL-LERBO;3:;4:;5:;6:;7:;8:;9:;10:;11:PDG-ODE-LITTORAL-LERBO;12:PDG-ODE-LITTORAL-LERBO;13:; C1 Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, 181 Ipsingil, Jeongeup 56212, Republic of Korea Ifremer, LER BO, Station de Biologie Marine, Place de la Croix, BP40537, F-29185 Concarneau Cedex, France Department Biologie, Systematische Botanik und Mykologie, GeoBio-Center, Ludwig-Maximilians-Universität München, Menzinger Str. 67, D-80638 München, Germany Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China Dr. Moses Strauss Department of Marine Geosciences, Leon H. Charney School of Marine Sciences, University of Haifa, 199 Abba Khoushy Ave., Haifa 3498838, Israel Louisiana Universities Marine Consortium, 8124 Highway 56, Chauvin, Louisiana 70344, USA School of Environmental Sciences, University of Liverpool, Liverpool, L69 7ZT, UK Department of Earth and Environmental Sciences, University of Minnesota, College of Science and Engineering, 116 Church Street SE, Minneapolis, MN 55455, USA School of Earth and Ocean Sciences, University of Victoria, OEASB A405, Victoria, British Columbia, V8P 5C2, Canada Coastal and Freshwater Group, Cawthron Institute, Nelson 7042, New Zealand Oregon State University, Department of Botany and Plant Pathology, College of Agricultural Sciences, 2082 Cordley Hall, Corvallis, OR 97331-2902, USA National Museum of Natural History, DGD-REVE, Station de Biologie Marine de Concarneau, Place de la Croix, 29900 Concarneau, France Library of Marine Samples, Korea Institute of Ocean Science and Technology, Geoje 53201, Republic of Korea C2 KRIBB, SOUTH KOREA IFREMER, FRANCE UNIV MUNCHEN, GERMANY SOA, CHINA UNIV HAIFA, ISRAEL UNIV LOUISIANA, USA UNIV LIVERPOOL, UK UNIV MINNESOTA, USA UNIV VICTORIA, CANADA CAWTHRON INST, NEW ZEALAND OREGON STATE UNIVERSITY, USA MNHN, FRANCE KIOST, SOUTH KOREA SI CONCARNEAU SE PDG-ODE-LITTORAL-LERBO IN WOS Ifremer UPR copubli-france copubli-europe copubli-int-hors-europe copubli-sud IF 2.566 TC 9 UR https://archimer.ifremer.fr/doc/00646/75802/76727.pdf LA English DT Article DE ;Dinoflagellate;molecular phylogenetics;parasite;plate overlap;rRNA;thecal plate AB In the current circumscription, the Thoracosphaeraceae comprise all dinophytes exhibiting calcified coccoid cells produced during their life-history. Species hitherto assigned to Ensiculifera and Pentapharsodinium are mostly based on the monadoid stage of life-history, while the link to the coccoid stage (occasionally treated taxonomically distinct) is not always resolved. We investigated the different life-history stages and DNA sequence data of Ensiculifera mexicana and other species occurring in samples collected from all over the world. Based on concatenated ribosomal RNA gene sequences Ensiculiferaceae represented a distinct peridinalean branch, which showed a distant relationship to other calcareous dinophytes. Both molecular and morphological data (particularly of the coccoid stage) revealed the presence of three distinct clades within Ensiculiferaceae, which may include other dinophytes exhibiting a parasitic life-history stage. At a higher taxonomic level, Ensiculiferaceae showed relationships to parasites and endosymbionts (i.e., Blastodinium and Zooxanthella) as well as to dinophytes harbouring diatoms instead of chloroplasts. These unexpected phylogenetic relationships are corroborated by the presence of five cingular plates in all such taxa, which differs from the six cingular plates of most other Thoracosphaeraceae. We herein describe Ensiculiferaceae, emend the descriptions of Ensiculifera and Pentapharsodinium, erect Matsuokaea and provide several new combinations at the species level. PY 2020 PD NOV SO Protist SN 1434-4610 PU Elsevier BV VL 171 IS 5 UT 000594112100001 DI 10.1016/j.protis.2020.125759 ID 75802 ER EF