First rDNA sequence data forHaplosplanchnus pachysomus(Digenea: Haplosplanchnidae) exMugil cephalusfrom the Black Sea, and molecular evidence for cryptic species withinHaplosplanchnus pachysomus(Digenea: Haplosplanchnidae) in Palaearctic and Indo-West Pacific regions
| Autor: | Yu. V. Belousova, N V Pronkina, M P Plaksina, D M Atopkin, E A Vodiasova |
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| Rok vydání: | 2021 |
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| Zdroj: | Journal of Helminthology. 95 |
| ISSN: | 1475-2697 0022-149X |
| DOI: | 10.1017/s0022149x21000419 |
| Popis: | Adult trematodes, morphologically similar toHaplosplanchnus pachysomus(Eysenhardt, 1829), were extracted from the intestine ofMugil cephalusLinnaeus, 1758, collected in the Black Sea basin. Morphological, morphometric and 28S ribosomal DNA (rDNA) partial sequence data were obtained for these trematodes following comparative analysis with previous data on this species. Worms from this study were morphologically identical to all previously reportedH.pachysomusspecimens from different locations. The results of the morphometric analysis indicated general similarity betweenH.pachysomusfrom the Black Sea and trematodes from Vietnam and Australia. Trematodes from the Black Sea and specimens from Spain were identical based on 28S rDNA partial sequences; however, these sequences differed from that ofH.pachysomusfrom Vietnam and Australia by eight fixed substitutions. Overall, our results indicate thatH.pachysomusfrom Spain and the Black Sea and from Vietnam and Australia can presently be considered as two cryptic species, one in Palaearctic and one in Indo-West Pacific regions. Our results provide a molecular base for includingHaplosplanchnus puriiin the genusProvitellotremaor to considerH.purii,P.crenimugilisandH.pachysomuswithin the same genus. |
| Databáze: | OpenAIRE |
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