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Endogenous lentivirus in Malayan colugo (Galeopterus variegatus), a close relative of primates.
Hron, Tomás; Fábryová, Helena; Paces, Jan; Elleder, Daniel.
Afiliação
  • Hron T; Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Vídenská 1083, 14220, Prague, Czech Republic. tomas.hron@img.cas.cz.
  • Fábryová H; Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Vídenská 1083, 14220, Prague, Czech Republic. helena.fabryova@img.cas.cz.
  • Paces J; Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Vídenská 1083, 14220, Prague, Czech Republic. jan.paces@img.cas.cz.
  • Elleder D; Institute of Molecular Genetics, Academy of Sciences of the Czech Republic, Vídenská 1083, 14220, Prague, Czech Republic. daniel.elleder@img.cas.cz.
Retrovirology ; 11: 84, 2014 Oct 04.
Article em En | MEDLINE | ID: mdl-25280529
BACKGROUND: A significant fraction of mammalian genomes is composed of endogenous retroviral (ERV) sequences that are formed by germline infiltration of various retroviruses. In contrast to other retroviral genera, lentiviruses only rarely form ERV copies. We performed a computational search aimed at identification of novel endogenous lentiviruses in vertebrate genomes. FINDINGS: Using the in silico strategy, we have screened 104 publicly available vertebrate genomes for the presence of endogenous lentivirus sequences. In addition to the previously described cases, the search revealed the presence of endogenous lentivirus in the genome of Malayan colugo (Galeopterus variegatus). At least three complete copies of this virus, denoted ELVgv, were detected in the colugo genome, and approximately one hundred solo LTR sequences. The assembled consensus sequence of ELVgv had typical lentivirus genome organization including three predicted accessory genes. Phylogenetic analysis placed this virus as a distinct subgroup within the lentivirus genus. The time of insertion into the dermopteran lineage was estimated to be more than thirteen million years ago. CONCLUSIONS: We report the discovery of the first endogenous lentivirus in the mammalian order Dermoptera, which is a taxon close to the Primates. Lentiviruses have infiltrated the mammalian germline several times across millions of years. The colugo virus described here represents possibly the oldest documented endogenization event and its discovery can lead to new insights into lentivirus evolution. This is also the first report of an endogenous lentivirus in an Asian mammal, indicating a long-term presence of this retrovirus family in Asian continent.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Lentivirus / Retrovirus Endógenos / Mamíferos Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: Asia Idioma: En Revista: Retrovirology Assunto da revista: VIROLOGIA Ano de publicação: 2014 Tipo de documento: Article País de afiliação: República Tcheca

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Lentivirus / Retrovirus Endógenos / Mamíferos Tipo de estudo: Prognostic_studies Limite: Animals País/Região como assunto: Asia Idioma: En Revista: Retrovirology Assunto da revista: VIROLOGIA Ano de publicação: 2014 Tipo de documento: Article País de afiliação: República Tcheca