Fig. 1From: Origin and diversification of leucine-rich repeat receptor-like protein kinase (LRR-RLK) genes in plantsPhylogenetic tree of LRR-RLK genes. The phylogenetic tree was constructed by the maximum likelihood method and based on kinase domain amino acid sequences with sequences from Physcomitrella patens, Selaginella moellendorffii, Arabidopsis thaliana, and Oryza sativa. Bootstrap values of major clades are shown above branches. The subfamily names are shown on the right. The full phylogeny is shown in Additional file 2: Figure S1Back to article page