{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,26]],"date-time":"2026-04-26T11:49:59Z","timestamp":1777204199820,"version":"3.51.4"},"reference-count":48,"publisher":"Inter-Research Science Center","license":[{"start":{"date-parts":[[2022,3,17]],"date-time":"2022-03-17T00:00:00Z","timestamp":1647475200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.int-res.com\/journals\/terms-of-use\/"}],"content-domain":{"domain":["int-res.com"],"crossmark-restriction":false},"short-container-title":["Dis. Aquat. Org."],"published-print":{"date-parts":[[2022,3,17]]},"abstract":"<jats:p>Tapeworms of the genus <jats:italic>Dibothriocephalus<\/jats:italic> are widely distributed throughout the world, and some are agents of human diphyllobothriasis, one of the most important fish-borne zoonoses caused by a cestode parasite. Until now, the population genetic structure of diphyllobothriid tapeworms in the Baikal Rift Zone (BRZ) has remained unexplored. The major aim of this study was to analyse the population genetic structure of <jats:italic>D. dendriticus<\/jats:italic> and <jats:italic>D. ditremus<\/jats:italic> parasitising fish in the BRZ based on internal transcribed spacer 1 (ITS1) and mitochondrial gene cytochrome oxidase subunit I <jats:italic>(cox1)<\/jats:italic> sequences. We found that both species had complex population genetic structures. Each species formed 2 clades <jats:italic>(D. dendriticus<\/jats:italic>: Clade 1 &amp; 2; <jats:italic>D. ditremus <\/jats:italic>Clade A &amp; B) that differed in genetic diversity. <jats:italic>D. dendriticus<\/jats:italic> haplotypes in Clade 1 formed a star-like sub-network with a main haplotype, whereas the haplotypes in Clade 2 formed a diffuse network. We assumed that the complex population genetic structure of <jats:italic>D. dendriticus<\/jats:italic> was a consequence of populations evolving under different palaeoecological conditions during the Last Glacial Maximum. In contrast to <jats:italic>D. dendriticus<\/jats:italic>, both clades in the <jats:italic>D. ditremus<\/jats:italic> samples formed a diffuse network. Our findings revealed hypothetical pathways in the formation of the population genetic structure of diphyllobothriids in the BRZ. On one hand, isolation by distance played an important role; on the other hand, lake recolonisation from refugia and a genetic bottleneck after the end of the Last Glacial Maximum had a possible influence.<\/jats:p>","DOI":"10.3354\/dao03646","type":"journal-article","created":{"date-parts":[[2021,11,30]],"date-time":"2021-11-30T11:19:48Z","timestamp":1638271188000},"page":"113-125","update-policy":"https:\/\/doi.org\/10.3354\/policy","source":"Crossref","is-referenced-by-count":6,"title":["Population genetic structure of diphyllobothriid tapeworms (Cestoda: Diphyllobothriidea) parasitising fish in the Baikal Rift Zone"],"prefix":"10.3354","volume":"148","author":[{"given":"IA","family":"Kutyrev","sequence":"first","affiliation":[{"name":"Institute of General and Experimental Biology, Siberian Branch of Russian Academy of Sciences, 670047 Ulan-Ude, Russia"},{"name":"Institute of Biology, Irkutsk State University, Irkutsk 664025, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"VA","family":"Mordvinov","sequence":"additional","affiliation":[{"name":"Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1913","reference":[{"key":"Ref1","doi-asserted-by":"crossref","unstructured":"Arizono N, Shedko M, Yamada M, Uchikawa R, Tegoshi T, Takeda K, Hashimoto K (2009) Mitochondrial DNA divergence in populations of the tapeworm Diphyllobothrium nihonkaiense and its phylogenetic relationship with Diphyllobothrium klebanovskii. 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