UASt regulatory sequences drive expression of an inverted repeat.
Expression of SRm160KK108396 alone or in combination with SRm160GL00538 (using UAS-dicer2 to enhance the RNAi efficiency) under the control of either the Scer\GAL4P2.4.Pdf or the Scer\GAL4tim.PE driver results in strong reduction in the proportion of rhythmic flies and decrease in the rhythmic power of the behavioral oscillations under free-running (constant darkness) conditions in the adult locomotor activity assay. Under driven light-dark conditions, SRm160 knockdown does not lead to any significant irregularities in the locomotor activity, the morning and evening anticipatory behavior is slightly diminished but not statistically significant. Scer\GAL4P2.4.Pdf-controlled expression of SRm160KK108396 does not lead to any structural defects to the LNv neuronal projections but it abrogates the oscillations of Pdf protein levels in the projections of s-LNv neurons and also dampens the oscillation of the per protein in these neurons.
Expression of SRm160KK108396 limited to adulthood by employing the Scer\GAL4Pdf.Switch1a driver and feeding the flies RU486 to activate the expression also results in significant decrease in the percentage of rhythmic flies.
Scer\GAL4P2.4.Pdf, Srrm1KK108396 has abnormal locomotor rhythm | adult stage phenotype, suppressible | partially by perUAS.cYa/Scer\GAL4P2.4.Pdf
Scer\GAL4P2.4.Pdf, Srrm1KK108396 has abnormal locomotor rhythm | adult stage phenotype, non-suppressible by ClkUAS.cZa, Scer\GAL4P2.4.Pdf
Scer\GAL4P2.4.Pdf, Srrm1KK108396 has abnormal locomotor rhythm | adult stage phenotype, non-suppressible by perN.Tag:HA/per[+]
Scer\GAL4P2.4.Pdf, Srrm1KK108396 has abnormal locomotor rhythm | adult stage phenotype, non-suppressible by Clk[+]/ClkTag:V5
The loss of rhythmicity in locomotor activity under free-running (constant darkness) conditions characteristic for flies expressing SRm160KK108396 (and UAS-dicer2 to enhance the RNAi efficiency) under the control of Scer\GAL4P2.4.Pdf is significantly improved by co-expression of perScer\UAS.cYa but not by co-expression of ClkScer\UAS.cZa or by addition of a single copy of either perN.T:Ivir\HA1 or ClkT:SV5\V5.