Table 1.

Receptor-like kinases and receptor-like proteins with a function in meristem maintenance

Gene	Organism	Function	Family	Putative ligand(s)	References
CLV1	Arabidopsis	Meristem maintenance	LRR-RLK XI	CLV3/CLEs	Clark et al. 1995, 1997; Trotochaud et al. 1999; Ogawa et al. 2008
CLV2	Arabidopsis	Meristem maintenance and organ development	LRR-RLP	CLV3/CLEs?
BAM1	Arabidopsis	Meristem, gametophyte, ovule, and vascular development	LRR-RLK XI	CLEs?	DeYoung et al. 2006; Hord et al. 2006
BAM2	Arabidopsis	Meristem, gametophyte, ovule, and vascular development	LRR-RLK XI	CLEs?	DeYoung et al. 2006; Hord et al. 2006
BAM3	Arabidopsis	Meristem, gametophyte, ovule, and vascular development	LRR-RLK XI	CLEs?	DeYoung et al. 2006; Hord et al. 2006
ERECTA	Arabidopsis	Meristem/organ/stomatal development/resistance to Ralstonia solanacearum	LRR-RLK XIII	EPF1?	Torii et al. 1996; Groß-Hardt and Laux 2003; Shpak et al. 2005; Shpak et al. 2005; Hara et al. 2007
ACR4	Arabidopsis	Cell layer organization	LRR-RLK CR4L	CLE40	Gifford et al. 2005; Watanabe et al. 2004; De Smet et al. 2008; Stahl et al. 2009
SCM	Arabidopsis	Positional development in root	LRR-RLK V	?	Kwak et al. 2005
RPK1	Arabidopsis	ABA signaling/embryonic and postembryonic development; positional development in root	LRR-RLK UC	?	Osakabe et al. 2005; Nodine et al. 2007; Nodine and Tax 2008
RPK2/Toad2	Arabidopsis	Anther, embryonic, and postembryonic development; positional development in root	LRR-RLK UC	?	Mizuno et al. 2007; Nodine et al. 2007; Nodine and Tax 2008
PXY/TDR	Arabidopsis	Vascular stem cells maintenance	LRR-RLK XI	CLE41/CLE44	Fisher and Turner 2007; Hirakawa et al. 2008
FEA2	Maize	Meristem and vegetative development	LRR-RLP	?	Taguchi-Shiobara et al. 2001
TD1	Maize	Meristem and vegetative development	LRR-RLK XI	?	Bommert et al. 2005
FON1	Rice	Floral meristem maintenance	LRR-RLK XI	FON2?	Suzaki et al. 2004