Molecular phylogeny of human adenovirus type 41 lineages

Jasper Götting1, Anne K Cordes1, Lars Steinbrück1

  • 1Institute of Virology, Hannover Medical School, Carl-Neuberg-Str. 1, Hannover 30625, Germany.

Virus Evolution
|November 16, 2022
PubMed

Insights

Human adenovirus species F type 41 (HAdV-F41) shows significant evolution, particularly in Lineage 3, impacting its tropism and virulence. This study details HAdV-F41

Area of Science:

  • Virology
  • Molecular Biology
  • Genetics

Background:

  • Human adenovirus species F type 41 (HAdV-F41) is a common cause of childhood gastroenteritis.
  • Recent associations with severe pediatric hepatitis have increased interest in HAdV-F41.
  • Limited studies have explored the evolutionary dynamics of HAdV-F41.

Purpose of the Study:

  • To investigate the phylogenetic evolution of HAdV-F41.
  • To analyze genomic variations within HAdV-F41 lineages.
  • To understand potential impacts of evolutionary changes on HAdV-F41 characteristics.

Main Methods:

  • Generation of complete HAdV-F41 genomic sequences from diagnostic specimens (2011-2022).
  • Inclusion of existing HAdV-F41 genomes from GenBank for phylogenetic analysis.
  • Phylogenetic analysis of 65 HAdV-F41 genomes to identify lineages and evolutionary patterns.

Main Results:

  • Phylogenetic analysis revealed three co-circulating HAdV-F41 lineages.
  • Lineage 3, first described in 2009, showed significant evolution, including a deletion in the long fiber gene.
  • A 2022 Lineage 3 isolate exhibited recombinant phylogeny in the short fiber gene, indicating ongoing evolution.

Conclusions:

  • HAdV-F41 has evolved into distinct lineages with significant genetic changes, especially in Lineage 3.
  • Alterations in fiber genes and E3 region of Lineage 3 may influence cellular tropism and virulence.
  • Further research is needed to understand the clinical implications of HAdV-F41 evolution, particularly concerning recent hepatitis cases.

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