The taxonomic and phylogenetic status of digeneans from the genus Timoniella (Digenea: Cryptogonimidae) in the Black and Baltic seas
Language English Country England, Great Britain Media print-electronic
Document type Journal Article
PubMed
28974278
DOI
10.1017/s0022149x1700075x
PII: S0022149X1700075X
Knihovny.cz E-resources
- MeSH
- DNA, Helminth chemistry genetics MeSH
- Phylogeny * MeSH
- Trematode Infections parasitology veterinary MeSH
- DNA, Ribosomal Spacer chemistry genetics MeSH
- Microscopy MeSH
- Fish Diseases parasitology MeSH
- Oceans and Seas MeSH
- RNA, Ribosomal, 28S genetics MeSH
- Sequence Analysis, DNA MeSH
- Cluster Analysis MeSH
- Trematoda anatomy & histology classification genetics isolation & purification MeSH
- Animals MeSH
- Check Tag
- Animals MeSH
- Publication type
- Journal Article MeSH
- Geographicals
- Oceans and Seas MeSH
- Names of Substances
- DNA, Helminth MeSH
- DNA, Ribosomal Spacer MeSH
- RNA, Ribosomal, 28S MeSH
Timoniella spp. are cryptogonimid flukes (Digenea: Cryptogonimidae) that parasitize the guts of fish in brackish waters. Timoniella imbutiforme, a species from the Mediterranean Sea, is recorded in the Black Sea, while T. balthica has been described from the Baltic Sea. In this paper, we clarify the taxonomic status of Timoniella populations in the Baltic and Black seas. Adults and metacercariae of Timoniella spp. were sampled from localities in the Mediterranean Sea (France), Black Sea (Ukraine) and Baltic Sea (Germany) and subjected to molecular and morphological analysis, including Bayesian phylogenetic reconstruction based on concatenated sequences of ITS1-ITS2-28S. This allowed us to construct a new key to species of the genus Timoniella. Our results suggest that T. balthica forms part of the Boreal-Atlantic relict fauna of the Black Sea and should now be considered a junior synonym of T. imbutiforme.
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