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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. 4. — tRNA gene usage in bird genomes. Circular representation of the (A) chicken and (B) zebra finch genome. Each chromosome is proportionally scaled to its length. Tracks inserted in the circle represent the genomic location of annotated (blue) and H3K4me3-marked genes in chicken liver and zebra finch brain (red). In zebra finch, we annotated TE-associated tRNA genes (grey), which were marked by H3K4me3 (black). Two-way Venn diagrams show the proportional diameter of annotated (blue) and H3K4me3-marked tRNA genes (red). The percentage of H3K4me3-marked tRNA genes is depicted. Chromosome W in zebra finch has not been assembled.