A few double heterozygotes for ash128 at 27oC exhibit haltere to wing transformation. Double heterozygotes for ash218 at 20oC exhibit very mild haltere to wing transformation and at 27oC exhibit very mild third to second leg transformation.
Homozygotes show complete T3p to T2p ("pbx") transformation. A1a is not affected.
Increases the frequency of the trx bithorax-variegated phenotype in heterozygous combination with Df(3R)red-P52.
The Ubxpbx-2 is almost completely complemented when heterozygous with pseudopoint or point mutations of Ubx. In the presence of a transvection suppressing chromosome rearrangement (TSR) there is a strong transformation of T3p to T2p.
Hemizygous flies show transformation of posterior haltere to wing and have extra dorsal postnotal tissue. These flies show variable slight reduction of the first abdominal tergite.