From: Soybean (Glycine max) expansin gene superfamily origins: segmental and tandem duplication events followed by divergent selection among subfamilies
Species
EXPA
EXPB
EXLA
EXLB
*Arabidopsis
26
6
3
1
*Rice
34
19
4
Soybean
49
9
2
15
Phaseolus vulgaris
25
0
5
Medicago truncatula
16