Nucleotide substitution: G2235A.
Amino acid replacement: W227term.
G8431882A
G2235A
W228term | grk-PA
W227term
pericentriolar material & oocyte | posterior
Approximately 80% of grk2E12/+ females lay eggs with fusion of dorsal appendages.
The posterior MTOC fails to disassemble in mutant oocytes, resulting in a focus of microtubules at the posterior pole.
Embryos laid by homozygous grk2B6 mothers are strongly ventralised.
Eggs produced by homozygous females have a double micropyle.
grk2B6/grk2E12 has egg chorion phenotype, suppressible | partially by Dwil\GK18382+ta
grk2B6/grk2E12 has dorsal appendage phenotype, suppressible | partially by Dwil\GK18382+ta
grk2E12 has dorsal appendage phenotype, suppressible by bru1QB/aret[+]
The presence of one or two copies of Dwil\GK18382+ta in grk2B6/grk2E12 mutant D. melanogaster flies results in four distinct eggshell phenotypes. Most eggshells, 69% and 78% from one and two copies of Dwil\GK18382+ta, respectively, are wild-type or wild-type with an enlarger area posterior to the base of the dorsal appendages, similar to wild-type flies expressing Dwil\GK18382+ta. A dorsal ridge-like morphology is found in 10% and 1% of the eggshells from one and two copies of Dwil\GK18382+ta, respectively.
In 13% and 18% of the eggshells from in grk2B6/grk2E12 mutant D. melanogaster with one and two copies of Dwil\GK18382+ta, respectively, there is a single or fused dorsal appendage.
In 8% and 3% of the eggshells from in grk2B6/grk2E12 mutant D. melanogaster with one and two copies of Dwil\GK18382+ta, respectively, the eggshells are collapsed and the eggs unmountable.