Molecular Identity of Laonice cirrata (Sars, 1851)(Annelida, Spionidae) and Description of a New Laonicespecies from the Northwest Pacific

Radashevsky, V.I.; Sikorski, A.V.; Pankova, V.V.; Choi, J.; Neretina, T.V.; Prudkovsky, A.A.; Pavlovaf, L.V.; Tzetlin, A.B.

Авторы: Radashevsky V.I., Sikorski A.V., Pankova V.V., Choi Jin-Woo, Neretina T.V., Prudkovsky A.A., Pavlovaf L.V., Tzetlin A.B.
Журнал: Russian Journal of Marine Biology
Номер: Vol. 49, Suppl. 1
Год издания: 2023
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: S29
Последняя страница: S46
DOI: 10.1134/S1063074023080060
Аннотация: Originally described from the northern Norway, Laonice cirrata (M. Sars, 1851) has been consideredcosmopolitan and widely distributed in the North Pacific. To clarify the taxonomic status of the Pacificworms, we obtained the genetic characteristics of L. cirrata from Grøtsund Fjord, near Tromsø, one of thesites where Michael Sars collected worms to describe this species. The phylogenetic analysis of sequences offive gene fragments (mitochondrial COI and 16S rDNA, nuclear 18S rDNA and 28S rDNA, and Histone 3)showed significant difference between the Norwegian worms and worms from the north-western part of theSea of Japan (Russia) earlier identified by morphology as L. cirrata. Common inhabitants of shallow watersin the Sea of Japan, these worms are assigned to the new species Laonice kasyanovi sp. nov. Both NortheastAtlantic and the Northwest Pacific populations exhibit high and overlapping variability of the diagnostic morphologicalcharacters of adults, and thus the two species can be considered as siblings. The distribution ofthese two species in the North Pacific remains uncertain and can only be elucidated by molecular data. Adultsand one larva from the White Sea were also sequenced and found to be genetically identical to L. cirrata fromNorway. The trochophores of L. cirrata are described and illustrated. They are characterized by two circles oflarge vesicles in the thick egg membrane and have been incorrectly referred to Aonides by previous authors.
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Molecular Identity of Laonice cirrata (Sars, 1851)(Annelida, Spionidae) and Description of a New Laonicespecies from the Northwest Pacificстатья

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