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<jats:title>ABSTRACT</jats:title><jats:p>Hepatitis B virus (HBV) is a diverse, partially double-stranded DNA virus, with 9 genotypes (A-I), and a putative 10<jats:sup>th</jats:sup> genotype (J), thus far characterised. Given the broadening interest in HBV sequencing, there is an increasing requirement for a consistent, unified approach to HBV genotype and subgenotype classification. We set out to generate an updated resource of reference sequences using the diversity of all genomic-length HBV sequences available in public databases. We collated and aligned genomic-length HBV sequences from public databases and used maximum-likelihood phylogenetic analysis to identify genotype clusters. Within each genotype, we examined the phylogenetic support for currently defined subgenotypes, as well as identifying well-supported clades and deriving reference sequences for them. An alignment of these reference sequences and maximum-likelihood phylogenetic trees of the sequences are provided to simplify classification. Based on the phylogenies generated, we present a comprehensive set of HBV reference sequences at the genotype and subgenotype level.</jats:p>

Original publication

DOI

10.1101/831891

Type

Journal article

Publisher

Cold Spring Harbor Laboratory

Publication Date

08/11/2019