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Fig. 1 | BMC Genomics

Fig. 1

From: Analysis of MAPK and MAPKK gene families in wheat and related Triticeae species

Fig. 1

Phylogenetic distribution of Triticeae and Brachypodium MPKs. PK domains of wheat (Ta), barley (Hv), rye (Sc) and triticale (Ts) MPKs were aligned with Brachypodium (Bd) MPKs, and the tree rooted with human (Hs) ERK1. Descriptive gene names are followed by chromosome number when available. Accessions used in the analysis are marked in bold in Additional file 3. BdMPKs are bolded in tree to visually separate them from the sequences identified herein. Only accessions with complete PK domains are included in the analysis. MPKs are divided into four clades (A, B, C, and D). MEME analyses shows amino acid distribution in Triticeae of some conserved domains. The “common docking” CD domain in the C-terminal extensions of clades A and B, which in Triticeae is shown to have the consensus sequence LH(D/E)xx(D/E)(D/E)PxC, similar to that reported in Brachypodium [11]. Unique to Triticeae MPK17s, an EF-hand CBP domain is found in their C-terminal extensions. The A, B and C clades carry TEY T-loops and D clade MPKs carry TDY motifs, with the exception of (a) MPK11s which carry an MEY motif, and (b) a TGY motif found in one copy of TaMPK25. An asterix (*) is used to indicate that the sequence includes one unidentified (X) amino acid residue and two aesterix (**) indicates that a stretch of residues are unidentified; these unknowns did not affect placement in the phylogenetic tree

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