The neighbor-joining phylogenetic tree of autonomous Fatima elements originating from different Triticeae genomes. The phylogenetic tree was constructed using a CLUSTALW multiple alignment for the Fatima nucleotide sequences coding for RNase H. Bootstrap support over 50% is shown for the corresponding branches. Designations in sequence names: Ta, T. aestivum; Td, T. durum; Tt, T. turgidum; Tu, T. urartu; Tm, T. monococcum; and Aet, Ae. tauschii. Insertion timing for Fatima elements is parenthesised. The group designated as B predominantly contains the elements belonging to the B genome; and D, the elements belonging to the D genome. The "mixed" group contains the Fatima elements from different Triticeae genomes.