Parasponia NFP2 are putative orthologs of legume LCO receptors MtNFP/LjNFR5. Phylogenetic reconstruction of the NFP/NFR5 orthogroup based on kinase domain. Protein sequences deduced from pseudogenes are marked with an asterisk. Included species are P. andersonii (Pan), Parasponia rigida (Pri), Parasponia rugosa (Pru), T. orientalis RG33 (Tor), T. orientalis RG16 (TorRG16), T. levigata (Tle), medicago (M. truncatula, Mt), lotus (L. japonicus, Lj), soybean (G. max, Glyma), peach (P. persica, Ppe), woodland strawberry (F. vesca, Fvesca), black cotton poplar (P. trichocarpa, Potri), eucalyptus (E. grandis, Eugr), jujube (Z. jujuba), apple (M. × domestica), mulberry (M. notabilis), hops (H. lupulus), cassava (Manihot esculenta), rice (O. sativa), tomato (S. lycopersicum), and castor bean (Ricinus communis). Node numbers indicate posterior probabilities below 1; scale bar represents substitutions per site. Parasponia proteins are marked in blue, Trema in red.