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Table 2 Correlation of substitution rates in neighboring ancient repeats.

From: Measuring the prevalence of regional mutation rates: an analysis of silent substitutions in mammals, fungi, and insects

species1 species2 # of repeats Pearson Correlation p-value
Human Macaque 5081426 0.32192 < 10-276
Dog Cow 1378699 0.18829 < 10-276
Elephant Tenrec 248577 0.12158 < 10-276
Rat Mouse 231283 0.1292 < 10-276
  1. In all four mammalian pairs considered (human-macaque), (dog-cow), (elephant-tenrec), and (rat-mouse), the correlations were extremely significant (<10-276). This supports the widespread heterogeneity of mutation rates in mammalian genomes.