Phylogenetic analysis of RTE1/GR-related proteins. A nonrooted phylogenetic tree was generated by using the phylip 3.5c suite of programs (http://evolution.genetics.washington.edu/phylip.html) using the Giardia protein as the out group. Bootstrap percentage supports are indicated. TIGR and SGN identifiers and GenBank accession numbers are as follows: tomato GR (DQ372895), tomato GRL1 (DQ372898), tomato GRL2 (DQ372899), potato GRL1 (DQ372900), potato GRL2 (SGN-U276841), A. thaliana RTE1 “AtRTE1” (NP_180177), Arabidopsis RTE1-HOMOLOG “AtRTH” (NP_190673), rice 1 (NP_916598), rice 2 (AAV59409), rice 3 (AAO37528), human (NP_115501), mouse (AAH37609), honey bee (XP_393764), fruit fly (NP_723362), Caenorhabditis elegans (AAF39886), dog (XP_852505), Xenopus (AAH87509), zebrafish (NP_001013334), pufferfish (CAG00266), Trypanosoma brucei (EAN77990), Giardia (XP_767284), Trypanosoma cruzi (XP_804751), Plasmodium (NP_703394), Aquilegia (TC10814), grape (TC40111), sorghum 1 (TC94016), sorghum 2 (TC97340), barley (TC132972), wheat (TC268045), oilseed rape (TC3567), poplar (TC31211), cotton (TC34712), and spruce (TC2575). Figure courtesy of Cornelius Barry (Boyce Thompson Institute for Plant Research, Ithaca, NY).