Fig. 2
From: Patterns of variation of mutation rates of mitochondrial and nuclear genes of gastropods
Relationships between number of species and total branch lengths of gene trees. a mtDNA datasets with \(\mu\)m/\(\mu\)n < 20, R2 = 0.934, P < 2.2 × 10–16; b mtDNA datasets with \(\mu\)m/\(\mu\)n > 20, R2 = 0.778, P < 7.8 × 10–8; c nuDNA datasets with \(\mu\)m/\(\mu\)n < 20, R2 = 0.705, P < 2.2 × 10–16; d nuDNA datasets with \(\mu\)m/\(\mu\)n > 20, R2 = 0.652, P < 5.8 × 10–6