Localization and distribution of seven IRIP genes identified in Brachypodium distachyon on chromosome 5 and B. distachyon IRIP genes phylogeny. (a) The location of seven Brachypodium distachyon IRIP genes on chromosome 5. (b) 50% consensus ML phylogeny (model J2 + G) of a subset of IRIP sequences from core Pooideae species and all 7 B. distachyon IRIP homologs based on 100 bootstrap replicates. The clade support from the alternative Bayesian phylogeny (1.000.000 generations) is shown together with the ML bootstrap support at the split which defines B. distachyon IRIP genes as monophyletic. Species abbreviations are as follows: Lp, Lolium perenne; Da, Deschampsia antarctica; Hv, Hordeum vulgare; Ta, Triticum aestivum.