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. 2014 Mar 11;5:70. doi: 10.3389/fpls.2014.00070

Figure 2.

Figure 2

Phylogeny of the 1 kb-upstream region of the studied PDF1s using an alignment free method. Phylogeny analysis of the 1 kb-long upstream sequence for the 17 studied PDF1 genes: 10 from A. halleri and 7 from A. thaliana (green boxes). Phylogeny inference was carried out using FFP software (Sims et al., 2009), which involves an alignment-free approach based on k-mer frequencies. The bootstrap value obtained with 100 replicates is indicated for each clade. Strongly supported clades (bootstrap support ≥ 95%) are indicated by a red rectangle. These supported clades were consistently recovered when the analysis was conducted with 500 bp upstream restriction sequences.