An F⁺strain, marked at 10 loci, gives rise spontaneously to Hfr progeny whenever the F factor becomes incorporated into the chromosome of the F⁺strain. The F factor can integrate into the circular chromosome at many points, so that the resulting Hfr strains transfer the genetic markers in different orders. For any Hfr strain, the order of markers entering a recipient cell can be determined by interrupted mating experiments. From the following data for several Hfr strains derived from the same F⁺, determine the order of markers in the F⁺strain.

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Hfr Strain Markers Donated in order -Z-H-E-R→ 2 -0-K-S-R→ -K-O-W-I→ -Z-T-I-W→ 4 -H-Z-T-I→ 5