Neighbor-Joining relationships of γ-gliadin sequences. Neighbor-Joining relationship of γ-gliadin nucleotide sequences including transcript-contigs of bread wheat (T. aestivum, ABD genome, red circles) and genomic γ-gliadin sequences derived from diploid wheat species; T. monococcum (Ab, squares), Ae. speltoides (S, black circles), Ae. tauschii (D, triangles). In all cases, a region of the γ-gliadin gene, shared by all transcripts sequences and genomic sequences, encompassing domain III, IV and V was analyzed. Numbers on branch points indicate the percentage of replicate trees in which the associated taxa clustered together in the bootstrap test (500 replicates).