F to A mutation in the RNP2 motif of the RRM1 (RNA recognition motif 1) domain. In addition, the first two cysteines within the RTZF (retroviral-type zinc finger) domain are mutated to tyrosines.
flightless, with lark1
male fertile, with lark1
lark1 homozygotes carrying larkRRM1+RTZF.T:Ivir\HA1 have normal free-running eclosion rhythms.
larkRRM1+RTZF.Tag:HA partially rescues lark1