12.5kb genomic fragment containing both Dvir\Gpi1 and Dvir\nonA coding sequences.
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.