Amino acid replacement: V?G. Nucleotide substitution: T1068G.
2.3% of expected mutant embryos hatch as first instar larvae. The latest observed stage of mutants is L1. Nerve cord length is 88% of embryo length. Midline guidance failure of repellence phenotype, evidenced by midline crossing, is severe. Mutant embryos show complete fusion of the longitudinal and commissural nerve trunks - few intersegmental connections are maintained.
sliGA945 has larval ventral nerve cord phenotype, enhanceable by robo[+]/robo11
Protein null.