MAP Kinase Gene Family
1 family
20 members
J Sheen Lab
http://www.arabidopsis.org/info/genefamily/MAPK.html

MAP Kinase Kinase Gene Family
1 family
10 members
J Sheen Lab
http://www.arabidopsis.org/info/genefamily/MAPKK.html

MAP Kinase Kinase Kinase
3 sub families (MAPKKK, ZIK, RAF)
80 members
Laszlo Bogre, Laszlo Okresz
http://www.arabidopsis.org/info/genefamily/MAPKKK.html

MAP Kinase Kinase Kinase Kinase
1 family
10 members
Laszlo Bogre, Laszlo Okresz
http://www.arabidopsis.org/info/genefamily/MAP4K.html