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Abstract <p>The Black Sea sprat <i>Clupeonella cultriventris</i> (Nordmann, 1840) (Actinopterygii: Clupeiformes) is a small pelagic species, the most abundant nonindigenous fish species of the Volga–Kama basin, playing an important role as one of the key elements of food chains in freshwater ecosystems. In this paper, we characterize its complete mitochondrial genome from an unambiguously adventive population of the Upper Volga (58°23′19″ N, 38°19′37″ E). Voucher identification is performed both by morphological characters and a DNA sequence blast against the GenBank international database. For sequencing of the complete mitochondrial genome, a classical Sanger sequencing is applied with the PCR product from a set of 48 primer pairs giving a complete overlapping and unambiguous reading of each nucleotide in at least two replications. The annotated complete mitogenome of <i>C. cultriventris</i> is 16 650 bp in length and has a conserved gene arrangement among herring fishes, containing 22 transfer RNAs, 13 protein-coding genes, two ribosomal RNAs, and one noncoding region. This mitochondrial genome demonstrates a 98.7% similarity to the previously studied one from the Black Sea. Based on these data, there are no sufficient reasons for isolating the freshwater sprat of the Volga–Kama region into a separate taxon.</p>

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Characteristics and Phylogenetic Significance of the Complete Mitochondrial Genome of Clupeonella cultriventris (Actinopterygii: Clupeiformes), a Nonindigenous Fish Species of the Rybinsk Reservoir (Volga River)

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  • 发表日期：

    2025年2月1日

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  • D. P. Karabanov,
  • Y. V. Kodukhova,
  • A. A. Kotov

摘要

Abstract

The Black Sea sprat Clupeonella cultriventris (Nordmann, 1840) (Actinopterygii: Clupeiformes) is a small pelagic species, the most abundant nonindigenous fish species of the Volga–Kama basin, playing an important role as one of the key elements of food chains in freshwater ecosystems. In this paper, we characterize its complete mitochondrial genome from an unambiguously adventive population of the Upper Volga (58°23′19″ N, 38°19′37″ E). Voucher identification is performed both by morphological characters and a DNA sequence blast against the GenBank international database. For sequencing of the complete mitochondrial genome, a classical Sanger sequencing is applied with the PCR product from a set of 48 primer pairs giving a complete overlapping and unambiguous reading of each nucleotide in at least two replications. The annotated complete mitogenome of C. cultriventris is 16 650 bp in length and has a conserved gene arrangement among herring fishes, containing 22 transfer RNAs, 13 protein-coding genes, two ribosomal RNAs, and one noncoding region. This mitochondrial genome demonstrates a 98.7% similarity to the previously studied one from the Black Sea. Based on these data, there are no sufficient reasons for isolating the freshwater sprat of the Volga–Kama region into a separate taxon.