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Phylogenetic tree reconstructed using a single DUF26, DUF26-A and DUF26-B domains of CRRSPs and CRKs from O. sativa, A. thaliana, Selaginella moellendorffii, and M. polymorpha, and Gnk2, SiCBMIP, and AFP1. Bar, 1.5 amino acid substitutions per site.
