Phylogram of STOP1-like proteins in various plant species. The distance indicator shows the relatedness of proteins. Boldface font indicates that the function of the protein has been supported by experiments using mutants (AtSTOP1 [GenBank accession no. NM_103160] and ART1 [NM_001072803]), RNAi suppression (NtSTOP1 [AB811781]), gene KO (PpSTOP1 [AB811778]), and/or in planta complementation assays (CsSTOP1 [AB811780], PnSTOP1 [AB811779], and LjSTOP1 [AB811782]). Putative orthologs are shown in regular font: B. rapa (AC232513.1), A. lyrata (XM_002891054.1), soybean (Glycine max [XM_003556158]), grape (Vitis vinifera [XM_002270160]), white spruce (BT117929), Vigna unguiculata (TC13125), tomato (AK320912), Jatropha curcas (Jcr4S27000.20), rice (NM_001051470), apple (Malus × domestica; HM122494), Brachypodium distachyon (XM_003564671), and barley (Hordeum vulgare [AK252406]).