EX UNO PLURES? MORPHOTYPE AND LINEAGE DIVERSITY OF BOTHRIOCEPHALUS (CESTODA: BOTHRIOCEPHALIDEA) IN NORTH AMERICAN FRESHWATER FISHES

0538259 - BC 2021 RIV US eng J - Journal Article
Choudhury, A. - Scholz, Tomáš
EX UNO PLURES? MORPHOTYPE AND LINEAGE DIVERSITY OF BOTHRIOCEPHALUS (CESTODA: BOTHRIOCEPHALIDEA) IN NORTH AMERICAN FRESHWATER FISHES.
Journal of Parasitology. Roč. 106, č. 5 (2020), s. 589-602. ISSN 0022-3395. E-ISSN 1937-2345
R&D Projects: GA MŠMT(CZ) LTAUSA18010
Institutional support: RVO:60077344
Keywords : parasites * rudolphi * Bothriocephalus * Cestoda * Tapeworms * Diversity * Freshwater Fishes * North America * Host Specificity
OECD category: Zoology
Impact factor: 1.276, year: 2020
Method of publishing: Limited access
https://bioone.org/journals/journal-of-parasitology/volume-106/issue-5/17-98/Ex-Uno-Plures-Morphotype-and-Lineage-Diversity-of-Bothriocephalus-Cestoda/10.1645/17-98.full

Morphological and molecular evaluation of tapeworms of the genus Bothriocephalus Rudolphi, 1808 Cestoda: Bothriocephalidea), based on newly collected and uniformly fixed worms from freshwater fishes in Canada and the United States has revealed unexpected diversity. With a combination of selected morphological features and 4 molecular markers (18S rDNA V8 region, ITS1, ITS2, and COI gene sequences), the following morphotypes and lineages of the Bothriocephalus cuspidatus Cooper, 1917 complex were identified, several of which are specific to their respective fish definitive hosts and may represent separate species: B. cuspidatus sensu stricto from walleye, Sander vitreus (type host), which likely includes a miniature morphotype from Johnny darter, Etheostoma nigrum (both Percidae), Bothriocephalus morphotype from pumpkinseed, Lepomis gibbosus (Centrarchidae), and Bothriocephalus morphotype from rock bass, Ambloplites rupestris (Centrarchidae). The Bothriocephalus morphotype from goldeye, Hiodon alosoides (Hiodontidae), may also represent a separate lineage (possibly Bothriocephalus texomensis Self, 1954) but requires additional studies. A morphotype from smallmouth bass, Micropterus dolomieu, based on a single specimen, is morphologically and genetically very similar to the morphotype from rock bass. Morphological study of the scolex and strobila of heat-killed and fixed specimens has revealed consistent differences, often subtle, that allowed us to differentiate between these morphotypes.
Permanent Link: http://hdl.handle.net/11104/0316086