Patterns of Natural Selection on Mitochondrial Protein-Coding Genes in Lungless Salamanders: Relaxed Purifying Selection and Presence of Positively Selected Codon Sites in the Family Plethodontidae

<div>Amino acid composition of positively selected sites in Plethodontidae (a) and lunged salamanders (b). The color scheme of each amino acid represents the chemical properties, as determined using WebLogo 3: polar (green), neutral (purple), basic (blue), acidic (red), and hydrophobic (black).</div>

International Journal of Genomics

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Figure 2: Patterns of Natural Selection on Mitochondrial Protein-Coding Genes in Lungless Salamanders: Relaxed Purifying Selection and Presence of Positively Selected Codon Sites in the Family Plethodontidae 

Figure 2 | Patterns of Natural Selection on Mitochondrial Protein-Coding Genes in Lungless Salamanders: Relaxed Purifying Selection and Presence of Positively Selected Codon Sites in the Family Plethodontidae 