D.melanogaster flies carrying Dvir\nonA+t12.5 in a nonA+ background have a normal optomotor response.
Dvir\nonA+t12.5 is a suppressor of abnormal optomotor response phenotype of nonA9e2-10
Dvir\nonA+t12.5, nonA9e2-10 has abnormal song phenotype
P{Dvir\Gpi1+t12.5} suppresses the lethality associated with T(1;4)9e2-10 (which causes the alleles l(1)14Ca9e2-10 and nonA9e2-10) when transformed into D.melanogaster. The ERG of T(1;4)9e2-10/Y flies carrying P{Dvir\Gpi1+t12.5} is normal.
The song characteristics of D.melanogaster nonA9e2-10/Y males carrying Dvir\nonA+t12.5 show D.virilis-like features while maintaining indicators of "normal" D.melanogaster song output such as the subtle change in PF (intrapulse frequency) during a song burst. The flies also appear to have a D.virilis-like shorter IPI (interpulse interval), even though the other characteristics of the song pulses that have been measured should, indirectly, lead to a longer IPI, suggesting that Dvir\nonA+t12.5 is playing an active role in reducing IPIs.