Molecular Systematics and Holarctic Phylogeography of Cestodes of the Genus Anoplocephaloides Baer, 1923 S
Zoologica Scripta Molecular systematics and Holarctic phylogeography of cestodes of the genus Anoplocephaloides Baer, 1923 s. s. (Cyclophyllidea, Anoplocephalidae) in lemmings (Lemmus, Synaptomys) VOITTO HAUKISALMI,LOTTA M. HARDMAN,VADIM B. FEDOROV,ERIC P. HOBERG & HEIKKI HENTTONEN Submitted: 27 March 2015 Haukisalmi, V., Hardman, L.M., Fedorov, V.B., Hoberg, E.P., Henttonen, H. (2016). Accepted: 2 July 2015 Molecular systematics and Holarctic phylogeography of cestodes of the genus Anoplo- doi:10.1111/zsc.12136 cephaloides Baer, 1923 s. s. (Cyclophyllidea, Anoplocephalidae) in lemmings (Lemmus, Synap- tomys). —Zoologica Scripta, 45,88–102. The present molecular systematic and phylogeographic analysis is based on sequences of cytochrome c oxidase subunit 1 (cox1) (mtDNA) and 28S ribosomal DNA and includes 59 isolates of cestodes of the genus Anoplocephaloides Baer, 1923 s. s. (Cyclophyllidea, Anoplo- cephalidae) from arvicoline rodents (lemmings and voles) in the Holarctic region. The emphasis is on Anoplocephaloides lemmi (Rausch 1952) parasitizing Lemmus trimucronatus and Lemmus sibiricus in the northern parts of North America and Arctic coast of Siberia, and Anoplocephaloides kontrimavichusi (Rausch 1976) parasitizing Synaptomys borealis in Alaska and British Columbia. The cox1 data, 28S data and their concatenated data all suggest that A. lemmi and A. kontrimavichusi are both non-monophyletic, each consisting of two separate, well-defined clades, that is independent species. As an example, the sister group of the clade 1ofA. lemmi, evidently representing the ‘type clade’ of this species, is the clade 1 of A. kontrimavichusi. For A. kontrimavichusi, it is not known which one is the type clade. There is also fairly strong evidence for the non-monophyly of Anoplocephaloides dentata (Galli-Valerio, 1905)-like species, although an earlier phylogeny suggested that this multi- species assemblage may be monophyletic.
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