The P{PZ}insc05475 insertion maps within both insc and sktl (nested genes).
lethal | recessive
partially lethal - majority die
sktlΔ15
sktlΔ5
sktl03679
sktlk02517
sktlk10907
sktlk12405
sktlk13706
Since sktl is nested within an intron of insc, and the locus corresponds to that previously known as 'fam', all alleles previously ascribed to 'fam' are considered to be alleles of both sktl and insc until shown to be otherwise.
A. Spradling.