Table 2.

Proportion of Arabidopsis, Oryza and orchid sequences belonging to RLK subgroups

RLK subgroups	Arabidopsis thaliana	Oryza sativa	Dendrobium catenatum	Phalaenopsis equestris
LEC	8.8	19.1	8.9	6.3
CR4L	1.3	1.9	1.7	1.7
CRK	11.6	7.8	8.6	7.3
CrRLK1L	2.4	1.6	3.2	3.3
Extensin	0.5	0.4	1.5	0.3
LRK10L-2	2.1	4.6	2.7	0.7
LysM	1.0	1.0	1.5	2.0
PERK	2.9	1.8	2.2	4.0
RKF3	0.3	0.3	0.5	0.7
LRR	39.3	33.7	38.7	37.2
WAK	4.5	11.9	2.5	2.7
RLCK	24.4	15.4	26.8	32.2