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. 2022 Oct 26;8(2):veac101. doi: 10.1093/ve/veac101

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© The Author(s) 2022. Published by Oxford University Press.

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (https://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com

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Figure 1. — The main characteristics of genes in Symbiodiniaceae genomes that were acquired by viral horizontal gene transfer (vHGT). Cladogram depicting phylogenetic relationships of Symbiodiniaceae genomes (adapted from González-Pech et al. 2021) in which vHGTs were identified (left); the hosts associated with each Symbiodiniaceae species are represented by colored circles (top left key). Assembly and estimated genome sizes are shown in gigabase pairs (Gbp). The total number of vHGTs and their putative taxonomic origins (at the order level; center key), the CDS percent Guanine–Cytosine (GC%) content, the average number of introns, and the total number of associated protein domains are shown for the vHGTs identified in each genome. The CDS GC% content and average number of introns is shown separately for the vHGTs and the background Symbiodiniaceae sequences (i.e. all Symbiodiniaceae CDS or genes [respectively] excluding the vHGTs). Abbreviations: Brevioloum minutum (Bmin); Cladocopium sp. C92 (CC92); Cladocopium goreaui (Cgor); Fugacium kawagutii (Fkaw); Symbiodinium linucheae CCMP2456 (Slin_CCMP2456); S. microadriaticum (Smic); S. microadriaticum 04–503SCI.03 (Smic_04-503SCI.03); S. microadriaticum CassKB8 (Smic_CassKB8); S. natans CCMP2548 (Snat_CCMP2548); S. necroappetens CCMP2469 (Snec_CCMP2469); S. pilosum CCMP2461 (Spil_CCMP2461); S. tridacnidorum (Stri); S. tridacnidorum CCMP2592 (Stri_CCMP2592); DNA/RNA pol (DNA/RNA polymerase superfamily); DUF4116 (Domain of unknown function DUF4116); None (None predicted); RdRp (RNA-dependent RNA polymerase); RNA hel core (RNA virus helicase core domain); R-dRP (RNA-directed RNA polymerase); R-dRp core (RNA-directed RNA polymerase catalytic domain); RNA hel (Viral (Superfamily 1) RNA helicase); Vir hel (Viral helicase1) (Supplementary Tables S2 and S12).