FN Archimer Export Format PT J TI Pentaplacodinium saltonense gen. et sp. nov. (Dinophyceae) and its relationship to the cyst-defined genus Operculodinium and yessotoxin-producing Protoceratium reticulatum BT AF MERTENS, Kenneth CARBONELL-MOORE, Maria Consuelo POSPELOYA, Vera HEAD, Martin J. HIGHFIELD, Andrea SCHROEDER, Declan GU, Haifeng ANDREE, Karl B. FERNANDEZ, Margarita YAMAGUCHI, Aika TAKANO, Yoshihito MATSUOKA, Kazumi NEZAN, Elisabeth BILIEN, Gwenael OKOLODKOV, Yuri KOIKE, Kazuhiko HOPPENRATH, Mona PFAFF, Maya PITCHER, Grant AL-MUFTAH, Abdulrahman ROCHON, Andre LIM, Po Teen LEAW, Chui Pin LIM, Zhen Fei ELLEGAARD, Marianne AS 1:1;2:2;3:3;4:4;5:5;6:5,6;7:7;8:8;9:8;10:9;11:10;12:10;13:11;14:11;15:12;16:13;17:14;18:15;19:16;20:17;21:18;22:19;23:19;24:19;25:20; FF 1:PDG-ODE-LITTORAL-LERBO;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:PDG-ODE-LITTORAL-LERBO;14:PDG-ODE-LITTORAL-LERBO;15:;16:;17:;18:;19:;20:;21:;22:;23:;24:;25:; C1 Univ Ghent, Res Unit Palaeontol, Krijgslaan 281 S8, B-9000 Ghent, Belgium. Oregon State Univ, Coll Agr Sci, Dept Bot & Plant Pathol, 2082 Cordley Hall, Corvallis, OR 97331 USA. Univ Victoria, Sch Earth & Ocean Sci, OEASB A405,POB 1700,Box 1700 STN CSC, Victoria, BC V8W 2Y2, Canada. Brock Univ, Dept Earth Sci, 1812 Sir Isaac Brock Way, St Catharines, ON L2S 3A1, Canada. Marine Biol Assoc UK, Citadel Hill, Plymouth PL1 2PB, Devon, England. Univ Reading, Sch Biol Sci, Reading RG6 6AJ, Berks, England. SOA, Inst Oceanog 3, Xiamen 361005, Peoples R China. IRTA, Km 5-5, San Carlos de la Rapita 43540, Spain. Kobe Univ, Res Ctr Inland Seas, Kobe, Hyogo 6578501, Japan. Nagasaki Univ, Inst East China Sea Res ECSER, 1551-7 Taira Machi, Nagasaki 8512213, Japan. IFREMER, LER BO, Stn Biol Marine, Pl Croix,BP40537, F-29185 Concarneau, France. Univ Veracruzana, Inst Ciencias Marinas & Pesquerias, Calle Hidalgo 617, Boca Del Rio 94290, Veracruz, Mexico. Hiroshima Univ, Grad Sch Biosphere Sci, Kagamiyama 1-4-4, Higashihiroshima, Hiroshima 7398528, Japan. Deutsch Zentrum Marine Biodivers Forsch DZMB, Sudstrand 44, D-26382 Wilhelmshaven, Germany. Univ Cape Town, Ma RE Inst, Marine Biol Res Ctr, Zool Dept, ZA-7701 Rondebosch, South Africa. Marine & Coastal Management, Private Bag X2, ZA-8012 Cape Town, South Africa. Qatar Univ, Dept Biol & Environm Sci, Doha, Qatar. Univ Quebec Rimouski, Inst Sci Mer Rimouski ISMER, 310 Allee Ursulines, Rimouski, PQ G5L 3A1, Canada. Univ Malaya, Inst Ocean & Earth Sci, Bachok 16310, Kelantan, Malaysia. Univ Copenhagen, Dept Plant & Environm Sci, Thorvaldsensvej 40, DK-1871 Frederiksberg, Denmark. C2 UNIV GHENT, BELGIUM UNIV OREGON STATE, USA UNIV VICTORIA, CANADA UNIV BROCK, CANADA MBA, UK UNIV READING, UK SOA, CHINA IRTA, SPAIN UNIV KOBE, JAPAN UNIV NAGASAKI, JAPAN IFREMER, FRANCE UNIV VERACRUZANA, MEXICO UNIV HIROSHIMA, JAPAN SENCKENBERG AM MEER, GERMANY UNIV CAPE TOWN, SOUTH AFRICA MARINE & COASTAL MANAGEMENT, SOUTH AFRICA UNIV QATAR, QATAR UNIV QUEBEC (UQAR-ISMER), CANADA UNIV MALAYA, MALAYSIA UNIV COPENHAGEN, DENMARK SI CONCARNEAU SE PDG-ODE-LITTORAL-LERBO IN WOS Ifremer jusqu'en 2018 copubli-europe copubli-int-hors-europe copubli-sud IF 5.012 TC 21 UR https://archimer.ifremer.fr/doc/00416/52756/53852.pdf LA English DT Article DE ;Pentaplacodinium;Protoceratium;Precingular plates;Salton Sea;Ceratocorys;Operculodinium;Cribroperidinioideae AB trains of a dinoflagellate from the Salton Sea, previously identified as Protoceratium reticulatum and yessotoxin producing, have been reexamined morphologically and genetically and Pentaplacodinium saltonense n. gen. et sp. is erected to accommodate this species. Pentaplacodinium saltonense differs from Protoceratium reticulatum (Claparède et Lachmann 1859) Bütschli 1885 in the number of precingular plates (five vs. six), cingular displacement (two widths vs. one), and distinct cyst morphology. Incubation experiments (excystment and encystment) show that the resting cyst of Pentaplacodinium saltonense is morphologically most similar to the cyst-defined species Operculodinium israelianum (Rossignol, 1962) Wall (1967) and O. psilatum Wall (1967). Collections of comparative material from around the globe (including Protoceratium reticulatum and the genus Ceratocorys) and single cell PCR were used to clarify molecular phylogenies. Variable regions in the LSU (three new sequences), SSU (12 new sequences) and intergenic ITS 1–2 (14 new sequences) were obtained. These show that Pentaplacodinium saltonense and Protoceratium reticulatum form two distinct clades. Pentaplacodinium saltonense forms a monophyletic clade with several unidentified strains from Malaysia. LSU and SSU rDNA sequences of three species of Ceratocorys (C. armata, C. gourreti, C. horrida) from the Mediterranean and several other unidentified strains from Malaysia form a well-supported sister clade. The unique phylogenetic position of an unidentified strain from Hawaii is also documented and requires further examination. In addition, based on the V9 SSU topology (bootstrap values >80%), specimens from Elands Bay (South Africa), originally described as Gonyaulax grindleyi by Reinecke (1967), cluster with Protoceratium reticulatum. The known range of Pentaplacodinium saltonense is tropical to subtropical, and its cyst is recorded as a fossil in upper Cenozoic sediments. Protoceratium reticulatum and Pentaplacodinium saltonense seem to inhabit different niches: motile stages of these dinoflagellates have not been found in the same plankton sample. PY 2018 PD JAN SO Harmful Algae SN 1568-9883 PU Elsevier Science Bv VL 71 UT 000423890200007 BP 57 EP 77 DI 10.1016/j.hal.2017.12.003 ID 52756 ER EF