Δ2-3 activity on GfrEY01553 results in an approximate 1.1kb deletion of the 5' end of Gfr, including a putative initiation codon.
wing | heat sensitive
wing | heat sensitive (with Df(3R)Exel6147)
wing | heat sensitive (with GfrGfr-1)
wing vein L3
wing vein L4
Gfr2 homozygotes, Gfr1/Gfr2 and Gfr2/Df(3R)Exel6147 mutants exhibit a wing-notch phenotype at 18oC but not 25oC. Gfr2 homozygotes exhibit a small terminal delta in veins III and IV of the adult wing at 25oC.