Amino acid replacement: I115M.
Amino acid replacement: T323S.
A15767205T
T323S | wek-PA; T323S | wek-PB
T323S
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
A15767827G
I115M | wek-PA; I115M | wek-PB
I115M
Site of nucleotide substitution in mutant inferred by FlyBase based on reported amino acid change.
Embryos
derived from mothers homozygous mutant for weklor in the germline develop dorsalized cuticular structures with a range of phenotypes. 33% of these embryos show a moderately dorsalized phenotype; they have the dorsolaterally derived filzkorper but lack the eight ventrally derived denticle belts. 59% show weak dorsalized phenotypes as they still contain both filzkorper and a few denticle belts. 8% of embryos have a wild-type appearance and hatch.
Although weklor/wekEX14 transheterozygotes are pupal lethal, some survive to adulthood but have crooked legs.
Embryos derived from weklor/wekEX14 mothers exhibit a dorsalized phenotype that is weaker than embryos derived from wekEX14 mothers, but stronger than embryos derived from weklor mothers.
Tl3, wekEX14/weklor has embryonic/first instar larval cuticle | lateral phenotype
cact7, weklor has embryonic/first instar larval cuticle | lateral phenotype
weklor, cact7 embryos show a lateralized phenotype, as revealed by the presence of rings of laterally derived ventral denticle belts.
Embryos produced by weklor/wekEX14; Tl3/+ mothers show a biphasic phenotype distribution. 76% show a moderately dorsalized phenotype; these embryos lack ventral and lateral structures but retain the dorsolaterally-derived filzkorper. 24% show a lateralized phenotype; these embryos are elongated and thin in appearance and contain fine rings of laterally-derived ventral denticle belts.
Selected as: a zygotic lethal mutation with maternal effect from a large genetic screen.
Based on the extent of the dorsalized phenotype in embryos from germ-line clones, the following wek alleles can be ranked from strongest to weakest as follows: wekEX14 > wekRAR14 > weklor.