Fig. 8From: Rapid evolutionary divergence of Gossypium barbadense and G. hirsutum mitochondrial genomesThe loss of tRNAs in 37 plant mitochondrial genomes. The phylogenetic tree was constructed based on nucleotide sequences of 17 mitochondrial genes including nad1, nad2, nad3, nad4, nad4L, nad5, nad6, nad9, cob, cox1, cox2, cox3, atp1, atp4, atp6, atp8 and atp9 using maximum likelihood (ML) method with the model GTR + G + I in MEGA5.05 [59]. The amino acids at the nodes represent the corresponding tRNA gene losses from mitochondrial genomes, and the arrow stands for tRNA loss in S. latifolia Back to article page