Table 3.

Maximum-likelihood estimates of d_N/d_S ratios

Species	dN/dS (Internal)	dN/dS (Terminal)	2ΔL
O. sativa	0.038	0.252	51.10**
A. thaliana	0.023	0.102	15.51**
V. melanops	0.026	0.383	15.61**
L. esculentum	0.094	0.264	13.10**
P. sativum	0.027	0.227	32.19**
V. sativa	0.144	0.144	0.94
Z. mays	0.073	0.189	8.40**
T. aestivum	0.150	0.341	20.58**
H. vulgare	0.217	0.217	0.61
P. abies	0.127	0.391	28.01**
V. faba	0.414	0.414	0.26

Species listed in order of increasing copy number of Ty-copia elements. 

^**, P < 0.001; 

^**, P < 0.01.