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Table 3 McDonald-Kreitman test comparing the ratio of nonsynonymous to synonymous differences within Chlamydomonas reinhardtii to that found between C. reinhardtii and Chlamydomonas incerta.

From: Nucleotide diversity in the mitochondrial and nuclear compartments of Chlamydomonas reinhardtii: investigating the origins of genome architecture

    Polymorphisms within C. reinhardtii Substitutions between C. reinhardtii and C. incerta NI G P
mtDNA Protein-codinga Nonsynonymous 3 61 0.653 0.533 0.465
   Synonymous 36 478    
  rtl Nonsynonymous 5 111 0.746 0.185 0.667
   Synonymous 4 119    
Nuclear DNA Exonic (overall)b Nonsynonymous 1 18 0.159 4.837 0.027
   Synonymous 21 60    
  CBLP Nonsynonymous 0 0 undef undef undef
   Synonymous 1 1    
  PETC Nonsynonymous 0 3 0.000 undef undef
   Synonymous 2 4    
  PDK Nonsynonymous 0 2 0.000 undef undef
   Synonymous 3 18    
  MAT3 Nonsynonymous 1 9 0.677 1.081 0.298
   Synonymous 6 18    
  SFA Nonsynonymous 0 4 0.000 undef undef
   Synonymous 9 19    
  1. Note--NI, neutrality index (ratio of nonsynonymous to synonymous polymorphisms within C. reinhardtii compared to the ratio of nonsynonymous to synonymous fixed differences between C. reinhardtii and C. incerta); G, G-test of independence (determines if the proportion of nonsynonymous substitutions is independent of whether the substitutions are fixed or polymorphic); P, probability of G-test; undef, undefined. C. incerta data came from [6] and [7]. Note: in no case was the McDonald-Kreitman test statistically significant.
  2. a Includes all protein coding genes excluding rtl.
  3. b Concatenated exons from all 5 nuclear genes.