Harris PD, Zaleśny G, Hildebrand J, Paziewska-Harris A, Behnke JM, Tkach V, Hwang YT, Kinsella JM. The Status of Heligmosomoides americanus, Representative of an American Clade of Vole-Infecting Nematodes.
J Parasitol 2015;
101:382-5. [PMID:
25574753 DOI:
10.1645/13-455.1]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Heligmosomoides americanus is shown by molecular phylogenetic analysis of 3 nuclear (28S, ITS1, and ITS2) and 2 mitochondrial (cytochrome oxidase 1 and cytochrome b) loci to be a distinct species of heligmosomid nematode with a long-independent evolutionary history, and not a subspecies of Heligmosomoides polygyrus . Rather than being a recent arrival in North America, the species probably originated as a Beringian immigrant with the host vole Phenacomys, approximately 2 million years ago (MYA).
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