Fig. 3

Classification of different groups of G- and L-type PtLecRLKs based on the phylogenetic analysis using maximum likelihood method (PHYML). The full-length amino acid sequences of PtLecRLKs were aligned using MUSCLE. The maximum likelihood phylogenetic tree was constructed by PHYML. aLRT SH-like branch support value is displayed in each node. a Phylogenetic tree of G-type PtLecRLKs. Maximum likelihood tree was calculated with Le Gascuel (LG) + G model with 180 G-type PtLecRLKs and 8 representative G-type AtLecRLKs. AT3G15356 (Lectin 3.1) was rooted to build phylogenetic tree. Three super tandem repeated regions shown in Fig. 2 are highlighted (light blue: super tandem repeats of PtLecRLK genes in chromosome 1; light green: super tandem repeats of PtLecRLK genes in chromosome 10; light red: super tandem repeats of PtLecRLK genes in chromosome 11). The loci in alternate clade among tandem repeat PtLecRLK genes on chromosome 11 are marked with blue asterisks. The loci in alternate clade in tandem repeat PtLecRLK genes on chromosome 1 are labeled with red asterisks. b Phylogenetic tree of L-type PtLecRLKs. Maximum likelihood tree was calculated with LG + G model with 50 L-type PtLecRLKs and 14 AtLecRLKs. The distantly related AT1G21250 (WAK1) and AT3G24550 (PERK1) were used as distal proteins to construct phylogenetic tree. A tandem repeated region is highlighted by light blue