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Molodtsova, T. N.; Moskalenko, V. N.; Lipukhin, E. V.; Antokhina, T. I.; Ananeva, M. S.; Simakova, U. V. (2023). Cerianthus lloydii (Ceriantharia: Anthozoa: Cnidaria): New Status and New Perspectives. Biology. 12(9): 1167.
456376
10.3390/biology12091167 [view]
Molodtsova, T. N.; Moskalenko, V. N.; Lipukhin, E. V.; Antokhina, T. I.; Ananeva, M. S.; Simakova, U. V.
2023
Cerianthus lloydii (Ceriantharia: Anthozoa: Cnidaria): New Status and New Perspectives
Biology
12(9): 1167
Publication
Subclass Ceriantharia is a well-defined and probably ancient group of marine benthic organisms renowned for their bilateral symmetry, which is reflected in the arrangement of tentacles and mesenteries. Four species of Ceriantharia have been reported in the Arctic, including Cerianthus lloydii Gosse, 1859, also known from the Northern Atlantic and Northern Pacific. The integrity of this species was questioned in the literature, so we performed a molecular study of C. lloydii from several geographically distant locations using 18S and COI genes. The phylogenetic reconstructions show that specimens of C. lloydii form a single group with high support (>0.98), subdivided into distinctive clades: (1) specimens from Northern Europe, the Black and Barents seas, and (2) specimens from the White, Kara, Laptev, and Bering seas and also the Canadian Arctic and the Labrador Sea available via the BOLD database. There are several BOLD COI sequences of Pachycerianthus borealis (Verrill, 1873), which form a third clade of the C. lloydii group, sister to the European and Arctic clades. Based on low similarity (COI 86–87%) between C. lloydii and the type species of the genus Cerianthus Delle Chiaje, 1841—C. membranaceus (Gmelin, 1791), we propose a new status for the genus Synarachnactis Carlgren, 1924, and a new family Synarachnactidae to accommodate C. lloydii.
Arctic Basin in general
Arctic-Boreal marine
Caspian Sea, Black Sea, Ponto-Caspian
North Atlantic
North Pacific
Molecular systematics, Molecular biology
Systematics, Taxonomy
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2023-08-28 09:09:29Z
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