oskbcd.UTR causes formation of ectopic pole cells at the anterior in 43% of embryos.
oskbcd.UTR embryos have a bicaudal phenotype.
Embryos from mothers that carry 4 copies of the oskbcd.UTR transgene show approximately double the number of pole cells compared to wild-type embryos.
Expression of oskbcd.UTR results in ectopic anterior pole cell formation in embryos.
P{osk-bcd3'UTR} and P{osk-bcd3'UTR}; Tm1gs1/Tm1gs1 embryos form two abdomens of opposite polarity.
Homozygous embryos develop mirror image duplication of posterior abdomen and telson structures. In early embryos pole cells are formed at the anterior and posterior poles.
oskbcd.UTR has primordial germ cell | ectopic phenotype, suppressible by Laspy41
oskbcd.UTR has embryo | anterior phenotype, suppressible by csulP
oskbcd.UTR has primordial germ cell | ectopic phenotype, suppressible by vls3
oskbcd.UTR is a non-suppressor of primordial germ cell phenotype of csulP
Expression of oskbcd.UTR in a Laspy41 mutant background results in only 10% of blastoderm embryos showing pole cell formation at the anterior. All fertilised eggs develop into embryos that display the bicaudal phenotype.
csulP suppresses the bicaudal phenotype of oskbcd.UTR embryos. The embryos produced have cuticle with a normal polarity, but the head is malformed. Pole cells are not formed in these double mutant embryos.
The formation of ectopic anterior pole cells seen in oskbcd.UTR embryos is suppressed in vls3 blastoderm embryos.