Figure 3.

Phylogeography of the LSDV strains of Types Ia–d and IIa–g (on the right). The picture was constructed based on the polymorphisms of the LSDV GPCR genes obtained from the NCBI database, https://www.ncbi.nlm.nih.gov/ (accessed on 2 June 2021) (the number of cases and outbreaks and date of their registration are not specified). The phylogenetic tree (on the left) shows the relationships of the Nesterovo-2019 strains and other LSDV isolates as a result of typing with this scheme, with Bayesian PP values above branches, and ML bootstraps below. The map demonstrates a distribution and proportions of each Type and Subtype of LSDV in different regions of Russian Federation and worldwide. The LSDV strains of different Subtypes are highlighted as the color circles: light green for Ia, light blue—Ib, grey—Ic, pink—Id, dark green—IIa, burgundy—IIb, purple—IIc, black—IId, dark blue—IIe, olive—IIf and glowing blue—IIg. The LSDV strains are nominally combined into three clusters, depending on the territory in which they were detected, namely: (i) the Central European Part of Russia (Cluster I); (ii) the South-East of the European Part of Russia (Cluster II); (iii) the North Asian Part of Russia (Cluster III). The Cluster 1 included mainly Type I strains, while both Clusters 2 and 3 were presented by predominantly Type II strains. The Clusters 1 and 2 were partially overlapped, while the Cluster 3 did not. The Clusters are highlighted as the color ellipses: red—for Cluster I, lilac—for Cluster II, and green—for Cluster III, respectively.