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Table 4 Substitution saturation analysis of the CRA region based on the index of substitution saturation as implemented in DAMBE6

From: Mind the gap! The mitochondrial control region and its power as a phylogenetic marker in echinoids

Marker dataset Number of OTUa Issb Iss.cSymc dfd p valuee Iss.cAsymf dfd p valuee
CRA-All 4 0.240 0.789 366 < 0.0001 0.757 366 < 0.0001
8 0.259 0.743 366 < 0.0001 0.631 366 < 0.0001
16 0.242 0.703 366 < 0.0001 0.494 366 < 0.0001
32 0.260 0.692 366 < 0.0001 0.363 366 0.0001
  1. aNumber of sequences used in the random resampling
  2. bindex of substitution saturation
  3. ccritical value for a symmetrical tree topology
  4. ddegrees of freedom
  5. eprobability that Iss is significantly different from the critical value (Iss.cSym/Iss.cAsym)
  6. fcritical value for an asymmetrical tree topology
  7. Note: two-tailed tests are used