Genomic Epidemiology and Evolution of Duck Hepatitis A Virus

Duck hepatitis A virus (DHAV), an avian picornavirus, causes high-mortality acute disease in ducklings. Among the three serotypes, DHAV-1 is globally distributed, whereas DHAV-2 and DHAV-3 serotypes are chiefly restricted to Southeast Asia. In this study, we analyzed the genomic evolution of DHAV-1 strains using extant GenBank records and genomic sequences of 10 DHAV-1 strains originating from a large disease outbreak in 2004-2005, in Hungary. Recombination analysis revealed intragenotype recombination within DHAV-1 as well as intergenotype recombination events involving DHAV-1 and DHAV-3 strains. The intergenotype recombination occurred in the VP0 region. Diversifying selection seems to act at sites of certain genomic regions. Calculations estimated slightly lower rates of evolution of DHAV-1 (mean rates for individual protein coding regions, 5.6286 × 10-4 to 1.1147 × 10-3 substitutions per site per year) compared to other picornaviruses. The observed evolutionary mechanisms indicate that whole-genome-based analysis of DHAV strains is needed to better understand the emergence of novel strains and their geographical dispersal.

Medienart:

E-Artikel

Erscheinungsjahr:

2021

Erschienen:

2021

Enthalten in:

Zur Gesamtaufnahme - volume:13

Enthalten in:

Viruses - 13(2021), 8 vom: 11. Aug.

Sprache:

Englisch

Beteiligte Personen:

Fehér, Enikő [VerfasserIn]
Jakab, Szilvia [VerfasserIn]
Bali, Krisztina [VerfasserIn]
Kaszab, Eszter [VerfasserIn]
Nagy, Borbála [VerfasserIn]
Ihász, Katalin [VerfasserIn]
Bálint, Ádám [VerfasserIn]
Palya, Vilmos [VerfasserIn]
Bányai, Krisztián [VerfasserIn]

Links:

Volltext

Themen:

Duck hepatitis A virus
Hungary
Journal Article
Recombination
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 27.01.2022

Date Revised 27.01.2022

published: Electronic

Citation Status MEDLINE

doi:

10.3390/v13081592

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM32995282X