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Table 3 Analysis of molecular variance in the rDNA IGS from ten individuals representing four species in the Daphnia pulex complex.

From: Evolution of the nuclear ribosomal DNA intergenic spacer in four species of the Daphnia pulex complex

  Source of
variation
d.f.2 Sum of
squares
Variance
components
Percentage
of variation
entire IGS1 Among species 3 1901.24 162.88 50.82 *
  Within species 9 1418.83 157.65 49.18
  Total 12 3320.08 320.52  
N1 Among species 3 489.60 46.40 62.72 *
  Within species 9 248.17 27.57 37.28
  Total 12 737.770 73.97  
N2 Among species 3 282.91 -6.48 -6.07
  Within species 9 1019.17 113.24 106.07
  Total 12 1302.08 106.76  
A-repeat Among species 2 34.90 -0.36 -1.71
  Among individuals within species 6 132.30 0.24 1.14
  Within individuals 32 671.90 20.107 100.57
  Total 40 839.10 20.88  
  FST = -0.01     
B-repeat Among species 2 12.67 0.03 0.23
  Among individuals within species 10 63.39 -2.22 -18.15
  Within individuals 35 504.58 14.42 117.91
  Total 47 580.65 12.23  
C-repeat Among species 2 3.68 -0.09 -1.84
  Among individuals within species 7 19.16 -1.64 -33.78
  Within individuals 14 92.00 6.57 135.61
  Total 23 114.83 4.85  
  1. 1. Repeat arrays have been replaced with one copy of the consensus for each repeat type in the complete IGS sequences.
  2. 2. degrees of freedom.
  3. * p < 0.001.