Additional file 4.

Maximum-likelihood tree of the gamma-gliadins (based on nucleotide sequences) from diploid species of tribe Triticeae. A maximum-likelihood (ML) analysis was performed with PhyML 3.0 using the GTR-substitution model. SH-like approximate likelihood-ratio test was used for estimation of branch support. Sequences that had length in the alignment less than 600 bp were excluded from the analysis. The gamma-gliadins fall into six groups (1–6 on the right) in two branches (1–2 and 3-4-5-6). Key for the sequence codes in Additional file 1.

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Goryunova et al. BMC Evolutionary Biology 2012 12:215   doi:10.1186/1471-2148-12-215