Table 2.

List of plant species used for constructing phylogenetic tree in Fig. 1.

Species name	Number of SPL proteins
Streptophyte algae
Chlorokybus atmophyticus	2
Klebsormidium nitens	2
Chara braunii	1
Zygnema circumcarinatum	3
Liverworts
Marchantia polymorpha	4
Marchantia paleacea	4
Metzgeria crassipilis	4
Mosses
Physcomitrium patens	13
Ceratodon purpureus	9
Sphagnum fallax	17
Hornworts
Anthoceros angustus	3
Anthoceros agrestis	4
Anthoceros punctatus	4
Fern
Ceratopteris richardii	10
Angiosperms
Amborella trichopoda	11
Arabidopsis thaliana	16
Oryza sativa	19