Encodes a maternal hb mRNA in which the endogenous wild-type nos response elements (NREs) have been deleted, and two copies of a mutant NRE (each bearing the nucleotide substitutions G12C and T13A) have been inserted.
Construct: Tandem dinucleotide substitution within the NRE.
lethal - all die during embryonic stage | dominant | maternal effect
some die during embryonic stage | dominant | maternal effect | maternal effect
viable
Embryos expressing hbNRE9 have 7-8 abdominal segments, and most embryos develop into viable adults.
Disruption of abdominal segmentation, typically embryos develop six or seven segments.