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. 2021 Feb 3;13(4):evab016. doi: 10.1093/gbe/evab016

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© The Author(s) 2021. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution.

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://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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Fig. 5. — Evolution of TE-associated tRNAs. (A) Right: phylogenetic tree displaying bird genomes with detectable TE-derived tRNA genes. Presence of branch-specific TEs is highlighted at the root of the clades (circles in different colors) and the name of the SINEs giving rise to TE-derived tRNA genes (legend bottom left). Left: median Cove scores of standard (black circle) and TE-derived (grey circle) tRNA genes per species are shown. Asterisks highlights significantly lower median Cove scores of TE-associated tRNA genes compared to standard tRNA genes. (B) Boxplots show decrease of Cove scores from standard tRNA genes to pseudogenes in the golden-collared manakin genome. ManaSINE1-associated tRNA genes have a higher Cove score than TguSINE1-associated tRNA genes because they appeared later in the phylogenetic history and thus accumulated fewer mutations. Numbers above each box entail the total gene number interrogated per tRNA type.