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Figure 1 | BMC Plant Biology

Figure 1

From: Exploring the evolutionary route of the acquisition of betaine aldehyde dehydrogenase activity by plant ALDH10 enzymes: implications for the synthesis of the osmoprotectant glycine betaine

Figure 1

Phylogenetic analysis of plant ALDH10 enzymes. A) Unrooted phylogenetic tree that includes all identified ALDH10 protein sequences showing the taxonomic group to which they belong. B) Monocot and non-flowering plant ALDH10 sequences. C) Eudicot ALDH10 sequences. Indicated are the presence/absence of a peroxisomal-targeting signal PST1 that fits to the consensus sequence (S/A/C)-(K/R/H)-(L/M) (in red and underlined) as well as the amino acid residue and codon at position equivalent to 441 of SoBADH. The tree was inferred from 500 replicates using the ML method [61]. The best tree with the highest log likelihood (-32886.4851) is shown. Similar trees were obtained with MP, ME and NJ methods. The analysis involved 131 amino acid sequences (122 from plants and 9 from non-plants). In panel A the branches of the unrooted tree are drawn to scale, with the bar length indicating the number of substitutions per site. In panels B and C only the branch topology is shown. The proportion of replicate trees in which the associated taxa clustered together in a bootstrap test (500 replicates) is given next to the branches. Branches with a very low bootstrap value (<20%) are collapsed. For each sequence, the accession number and the name assigned in published papers (in the case of proteins previously studied) are given. X indicates an unidentified amino acid/nucleotide.

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