TABLE 2

Divergence time of T. urartu and Ae. tauschii in million years estimated from intronic nucleotide sequence divergence and the time of origin of wild tetraploid wheat T. turgidum ssp. dicoccoides in MY estimated from the number of locus duplications

GeneTotal wheat-barley nucleotide divergenceMean nucleotide substitution rate per MYT. urartu and Ae. tauschii divergence timeOrigin of T. dicoccoides
UP0.040.0044.00.54
HX0.040.0041.20.16
SMP0.060.0063.70.49
ADM0.090.0082.00.27
Mean2.70.36
95% confidence interval1.4–4.10.19–0.54