Abstract:
:Rabies is a fatal zoonotic infection of the central nervous system of mammals and has been known to humans for millennia. The etiological agent, is a neurotropic RNA virus in the order Mononegavirales, family Rhabdoviridae, genus Lyssavirus. There are currently accepted to be two cycles for rabies transmission: the urban cycle and the sylvatic cycle. The fact that both cycles originated from a common RABV or lyssavirus ancestor and the adaptive divergence that occurred since then as this ancestor virus adapted to a wide range of fitness landscapes represented by reservoir species in the orders Carnivora and Chiroptera led to the emergence of the diverse RABV lineages currently found in the sylvatic and urban cycles. Here we study full genome phylogenies and the time to the most recent common ancestor (TMRCA) of the RABVs in the sylvatic and urban cycles. Results show that there were differences between the nucleotide substitution rates per site per year for the same RABV genes maintained independently in the urban and sylvatic cycles. The results identify the most suitable gene for phylogenetic analysis, heterotachy among RABV genes and the TMRCA for the two cycles.
journal_name
Genet Mol Bioljournal_title
Genetics and molecular biologyauthors
Oliveira RN,Freire CC,Iamarino A,Zanotto PM,Pessoa R,Sanabani SS,Souza SP,Castilho JG,Batista HBCR,Carnieli P Jr,Macedo CI,Watanabe JT,Brandão PEdoi
10.1590/1678-4685-GMB-2019-0370subject
Has Abstractpub_date
2020-07-31 00:00:00pages
e20190370issue
3eissn
1415-4757issn
1678-4685pii
S1415-47572020000500601journal_volume
43pub_type
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