Bats and Rodents Shape Mammalian Retroviral Phylogeny
AuthorCui, J; Tachedjian, G; Wang, L-F
Source TitleScientific Reports
PublisherNATURE PUBLISHING GROUP
University of Melbourne Author/sTachedjian, Gilda
AffiliationMicrobiology and Immunology
Document TypeJournal Article
CitationsCui, J., Tachedjian, G. & Wang, L. -F. (2015). Bats and Rodents Shape Mammalian Retroviral Phylogeny. SCIENTIFIC REPORTS, 5 (1), https://doi.org/10.1038/srep16561.
Access StatusOpen Access
Endogenous retroviruses (ERVs) represent past retroviral infections and accordingly can provide an ideal framework to infer virus-host interaction over their evolutionary history. In this study, we target high quality Pol sequences from 7,994 Class I and 8,119 Class II ERVs from 69 mammalian genomes and surprisingly find that retroviruses harbored by bats and rodents combined occupy the major phylogenetic diversity of both classes. By analyzing transmission patterns of 30 well-defined ERV clades, we corroborate the previously published observation that rodents are more competent as originators of mammalian retroviruses and reveal that bats are more capable of receiving retroviruses from non-bat mammalian origins. The powerful retroviral hosting ability of bats is further supported by a detailed analysis revealing that the novel bat gammaretrovirus, Rhinolophus ferrumequinum retrovirus, likely originated from tree shrews. Taken together, this study advances our understanding of host-shaped mammalian retroviral evolution in general.
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