#nexus
begin sets;
  charset COI_Codon_3 = 1-700\3;
  charset COI_Codon_1 = 2-698\3;
  charset COI_Codon_2 = 3-699\3;
  charpartition mymodels =
    TIM2+F+G4: COI_Codon_3,
    TNe+I+G4: COI_Codon_1,
    HKY+F+I: COI_Codon_2;
end;