Novel avian hepadnaviruses in passerine birds

Abstract

We identified hepadnaviruses in passerine birds. The virus was detected in four eggs from Gouldian finches ( Chloebia gouldiae ), in three feather quills, and in a liver sample from other ornamental birds. The full-length circular genome (~3 kb in length) of hepadnavirus strains detected in a Gouldian finch, a Society finch ( Lonchura striata domestica ) and a Long-tailed finch ( Poephila acuticauda ) was reconstructed. Hepadnavirus replicative circular DNA was detected in the egg and quill samples, suggesting the presence of cccDNA in these sites. The viruses were genetically distantly related to other avian hepadnaviruses and endogenous hepadnavirus elements, suggesting geographical or host-species restriction in passerine birds.

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BibTeX RIS

BibTeX

@article{pellegrini2026novel,
  title = {{Novel avian hepadnaviruses in passerine birds}},
  author = {Francesco Pellegrini and Gaia Casalino and Roberto Lombardi and Gianvito Lanave and Georgia Diakoudi and Tiago Bugarim and Krisztian Banyai and Michele Camero and Barbara Di Martino and Antonio Camarda and Elena Circella and Vito Martella},
  journal = {Scientific Reports},
  year = {2026},
  month = oct,
  doi = {10.1038/s41598-026-68396-8},
  url = {https://www.nature.com/articles/s41598-026-68396-8},
  note = {CC BY 4.0},
}

RIS

TY  - JOUR
TI  - Novel avian hepadnaviruses in passerine birds
AU  - Francesco Pellegrini
AU  - Gaia Casalino
AU  - Roberto Lombardi
AU  - Gianvito Lanave
AU  - Georgia Diakoudi
AU  - Tiago Bugarim
AU  - Krisztian Banyai
AU  - Michele Camero
AU  - Barbara Di Martino
AU  - Antonio Camarda
AU  - Elena Circella
AU  - Vito Martella
PY  - 2026
DA  - 2026/10/01
JO  - Scientific Reports
DO  - 10.1038/s41598-026-68396-8
UR  - https://www.nature.com/articles/s41598-026-68396-8
AB  - We identified hepadnaviruses in passerine birds. The virus was detected in four eggs from Gouldian finches ( Chloebia gouldiae ), in three feather quills, and in a liver sample from other ornamental birds. The full-length circular genome (~3 kb in length) of hepadnavirus strains detected in a Gouldian finch, a Society finch ( Lonchura striata domestica ) and a Long-tailed finch ( Poephila acuticauda ) was reconstructed. Hepadnavirus replicative circular DNA was detected in the egg and quill samples, suggesting the presence of cccDNA in these sites. The viruses were genetically distantly related to other avian hepadnaviruses and endogenous hepadnavirus elements, suggesting geographical or host-species restriction in passerine birds.
SN  - 2045-2322
ER  -

Abstract

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