Fig. 4

ML phylogeny of ITS1-5.8S rDNA-ITS2 consensus sequences from blue-flowered flaxes and the selected out-group – yellow-flowered flax L. nodiflorum (sect. Syllinum). The values shown below branches are node supports assessed by the Bayesian-like modification of the approximate likelihood ratio test (aBayes) [25]. The abbreviations of the names of the samples are explained in the Additional file 1