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Table 2 The 10 most populated nodes in the Embryophyte tree of life are shown together with the fraction of identical four- fold degenerate codons for all pairwise comparisons linked by that speciation node and also with the number of species in TAED under that node.

From: A systematic search for positive selection in higher plants (Embryophytes)

Node in Tree Of Life # of species fraction of identical four- fold degenerate codons
Embryophyta (plants) 4568 0.31 ± 0.14
Tracheophyta (vascular plants) 4113 0.30 ± 0.18
Euphyllophyta 4096 0.29 ± 0.10
Spermatophyta (seed plants) 4045 0.27 ± 0.10
Magnoliophyta (flowering plants) 3883 0.35 ± 0.12
core eudicotyledons 2651 0.35 ± 0.14
asterids 1069 0.50 ± 0.14
rosids 1257 0.38 ± 0.13
eurosids I 755 0.40 ± 0.12
Poaceae (grass family) 451 0.56 ± 0.16