Pka-C1Cos-2, cosV4 has lethal | maternal effect | embryonic stage phenotype
Pka-C1Cos-3, cosV4 has lethal | maternal effect | embryonic stage phenotype
Pka-R2Cos-A1, cosV4 has lethal | maternal effect | embryonic stage phenotype
Wing and haltere show pattern duplications, in a mutant "Cos" background. The phenotype of embryos resulting from crosses involving viable alleles of cos and Pka-R2Cos-A1, Pka-C1Cos-2 or Pka-C1Cos-3 indicate a maternal effect on the interaction between cos and Pka-C1 and the interaction between cos and Pka-R2. If the female parent is heterozygous for a viable allele of cos and Pka-R2Cos-A1, Pka-C1Cos-2 or Pka-C1Cos-3, and the male parent for Pka-R2Cos-A1, Pka-C1Cos-2 or Pka-C1Cos-3, 11% of the embryos show a strong bicaudal phenotype (whereas the reciprocal cross produces less than 1% bicaudal embryos).
Complements the lethal and viable cos alleles, unless flies are simultaneously heterozygous for "Cos" mutants.
Simpson.
Isolated from: Various laboratory stocks.
"spontaneous" was stated as tentative.
Isolated by recombination from a laboratory stock. Allelic series: cosV5 >= cosV4 = cosV1 >= cosV2 >= cosV3, based on the penetrance of wing duplications.