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Table 1 Summary statistics of relaxed molecular clock estimates of the divergence time between Demodex species based on amino acid sequence alignments of mitochondrial proteins

From: Complete mitochondrial genomes of the human follicle mites Demodex brevis and D. folliculorum: novel gene arrangement, truncated tRNA genes, and ancient divergence between species

Prior on tmrca [Acariformes]

Solifugae included?

tmrca [Acari] (mya)

tmrca [ Demodex] (mya)

Exponential [10] Offset 410

No

483 [450 – 523]

129 [87 – 173]

Gamma [2,15] Offset 410

No

504 [457 – 560]

134 [86 – 180]

Uniform [410, 510]

No

520 [456 – 589]

137 [88 – 186]

Exponential [10] Offset 410

Yes

475 [441 – 509]

133 [82 – 185]

Gamma [2,15] Offset 410

Yes

494 [448 – 546]

140 [88 – 191]

Uniform [410, 510]

Yes

509 [449 – 578]

145 [93 – 197]

  1. mya = millions of years ago; tmrca = time to most recent common ancestor. tmrca[Acari] represents the estimated divergence time between Acariformes and Parasitiformes. tmrca[Demodex] represents the estimated divergence time between D. brevis and D. folliculorum. Shown for the tmrca estimates are the mean and 95% highest probability density intervals for each analysis.