Fig. 6. Two approaches in the development of chromosomes RM from the engineered translocation 1RS.1BL in wheat (MA1) and chromosome 1R.1D₅₊₁₀-2 in triticale Presto. On the left, engineered short arm of MA1 is translocated onto a normal long arm of 1R by centric fission-fusion in wheat, and on transfer to triticale it is recombined with chromosome 1R.1D₅₊₁₀-2; on the right, MA1 is transferred into triticale and recombined with 1R.1D₅₊₁₀-2 in the presence of chromosome 1D.