The distribution of tRNAs in vascular and angiosperm plant mitochondrial and chloroplast genomes.

<p>Native tRNA genes in mitochondrial and chloroplast genomes are shown in open square and circles, respectively. Solid squares indicate cp-derived tRNAs found in mt genome and ψ stands for pseudogene. There are ten tRNAs (their anticodons are highlighted in bold) that are gradually lost in genome evolution and four tRNAs (their anticodons are underlined) that are gradually replaced by their cp-derived counterparts. These eight mt genomes are listed according to their relative phylogenetic positions in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0037164#pone-0037164-g002" target="_blank">Figure 2</a>.