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Table 2 Ratio of rates of significantly different single-nucleotide substitutions between D. saltans/willistoni and D. melanogaster

From: Minor shift in background substitutional patterns in the Drosophila saltans and willistoni lineages is insufficient to explain GC content of coding sequences

  T:A->C:G r C:G->T:A Minimum fixation bias* T:A->G:C G:C->T:A Minimum fixation bias*
Ratio of rates in saltans/willistoni and D. melanogaster (Euchromatic DNAREP1_DM) 1.23 (0.13)** 1.43 (0.12) N e s(mel) = -4.76
N e s(saltans) = -4.85
0.47 (0.10) 0.71 (0.11) N e s(mel) = 2.86
N e s(saltans) = 2.98
Ratio of rates in saltans/willistoni and D. melanogaster (Heterochromatic DNAREP1_DM) 1.33 (0.13) 1.43 (0.12) undefined 0.21 (0.003) 0.15 (0.002) undefined
  1. * Fixation bias is measured in the effective strength of natural selection (product of effective population size and selection coefficient) that would generate such a bias. Positive sign implies preference for A:T pairs and negative sign implies preference toward G:C pairs.
  2. ** The number in parentheses is the standard error.