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Abstract <p>The occurrence of <i>Malacobdella grossa</i> in Peter the Great Bay, Sea of Japan has been confirmed by analysis of cytochrome <i>c</i>oxidase subunit I (<i>COI</i>) gene fragments. The sequences of four specimens from the Sea of Japan belong to the same haplotype and differ from the sequences of the specimens from the White and North Seas by three to five substitutions. This is the first hoplonemertean species whose trans-Arctic distribution has been proven at a genetic level. The studied <i>Malacobdella japonica</i> specimens from Aniva Bay (Sakhalin Island) belong to the same haplotype as the specimens from Akkeshi Bay and Ibaraki Prefecture, Japan.</p>

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The First Barcoding Analysis of Symbiotic Nemerteans of the Genus Malacobdella Blainville, 1827 (Hoplonemertea, Monostilifera) from the Far Eastern Seas of Russia

  • 期刊论文

  • 发表日期：

    2025年12月29日

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  • A. A. Martynova,
  • V. G. Kuznetsov,
  • A. V. Chernyshev

摘要

Abstract

The occurrence of Malacobdella grossa in Peter the Great Bay, Sea of Japan has been confirmed by analysis of cytochrome coxidase subunit I (COI) gene fragments. The sequences of four specimens from the Sea of Japan belong to the same haplotype and differ from the sequences of the specimens from the White and North Seas by three to five substitutions. This is the first hoplonemertean species whose trans-Arctic distribution has been proven at a genetic level. The studied Malacobdella japonica specimens from Aniva Bay (Sakhalin Island) belong to the same haplotype as the specimens from Akkeshi Bay and Ibaraki Prefecture, Japan.