id author title date pages extension mime words sentences flesch summary cache txt cord-004507-ezuyjcxs Tomazatos, Alexandru Letea Virus: Comparative Genomics and Phylogenetic Analysis of a Novel Reassortant Orbivirus Discovered in Grass Snakes (Natrix natrix) 2020-02-21 .txt text/plain 6326 348 49 The study provided complete genome sequences for nine Letea virus strains and new information about orbivirus diversity, host range, ecology and evolution. The phylogenetic clustering of Orbivirus members results in clades indicating their putative or potential arthropod vectors: Culicoidesor sand fly-borne (C/SBOV), mosquito-borne (MBOV) and tick-borne orbiviruses (TBOV) [9] . Evolutionary relationship of LEAV with representative members of the Orbivirus genus were analyzed by inferring phylogenetic trees with amino acid and nucleotide ORF sequences of conserved genes encoding the polymerase (VP1), the subcore shell protein T2 (VP2/VP3) and the major core surface protein T13 (VP7) [5, 6] . Inclusion and demarcation of species within the Orbivirus genus considers several criteria, such as sequence identity of segments encoding the polymerase (VP1) and major subcore shell protein T2, gene reassortment between close strains, high levels of serological cross-reactivity against conserved antigens like the T13 protein, conservation of UTR terminal nucleotides, range of hosts and vectors or the clinical signs associated with orbivirus infection [1] . ./cache/cord-004507-ezuyjcxs.txt ./txt/cord-004507-ezuyjcxs.txt