Genome characterization of a novel megrivirus-related avian picornavirus from a carnivorous wild bird, western marsh harrier (Circus aeruginosus)

Boros, Ákos and Pankovics, Péter and Mátics, Róbert and Adonyi, Ádám and Bolba, Nóra and Phan, Tung Gia and Delwart, Eric and Reuter, Gábor (2017) Genome characterization of a novel megrivirus-related avian picornavirus from a carnivorous wild bird, western marsh harrier (Circus aeruginosus). Archives of Virology, 162 (9). pp. 2781-2789. ISSN 0304-8608

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Abstract

In this study, the complete genome of a novel picornavirus called harrier picornavirus 1 (HaPV-1) strain harrier/MR-01/HUN/2014 (KY488458) was sequenced and analysed from a cloacal sample of a threatened, carnivorous wild bird, western marsh harrier (Circus aeruginosus). HaPV-1 was detectable from 2 of the 3 samples from harriers. HaPV-1 is phylogenetically related to megriviruses (genus Megrivirus) from domestic chicken, turkey and duck, showing a similar genome organization pattern; it also has an avian picornavirus-like "Unit A" motif in the 3' UTR. Unlike the type-IV internal ribosomal entry site (IRES) of megriviruses, HaPV-1 is predicted to contain a type-II-like IRES, suggesting modular exchange of IRES elements between picornavirus genomes.

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