A tud fragment corresponding to amino acid residues 1198-2515 fused with EGFP and Tag:HA is expressed under the control of a vas promoter.
tud3ZS.L.vas.EGFP,Tag:HA rescues tud1
Expression of tud3ZS.L.vas.T:Avic\GFP-EGFP,T:Ivir\HA1 restores pole cell formation in eggs laid by tud1 mothers.