Table 3

Extent of Nucleotide Substitution between Soybean and M. truncatula (Mean/Median)

Synteny Block

Homoeologs

Nonsynonymous/Synonymous^1,2

Synonymous substitutions^1,3

Nonsynonymous substitutions^1,4

1

Mt and Gm

^a 0.42/0.27

^a 0.71/0.73

^a 0.19/0.23

1

Mt and Gm

^a 0.21/0.18

^a 0.71/0.61

^a 0.13/0.12

2⁵

Mt_2i and Gm

^a,b 0.26/0.25

^a 0.87/0.63

^a 0.16/0.12

2⁵

Mt_2ii and Gm

^a 0.17/0.16

^b 1.21/0.98

^a 0.17/0.15

2⁵

Mt_2i and Mt_2ii

^b 0.24/0.24

^a,b 0.82/0.79

^b 0.21/0.21

¹ Letters denote significant difference at p ≤ 0.05

² Ratio of synonymous to nonsynonymous substitutions

³ Synonymous substitutions per site

⁴ Nonsynonymous substitutions per site

⁵ Synteny block 2 includes only the eight genes in soybean and both M. truncatula duplicates

Mudge et al. BMC Plant Biology 2005 5:15   doi:10.1186/1471-2229-5-15