amorphic allele - genetic evidence
Internal deletion removing all three exons of Gsc.
lethal - all die during embryonic stage | recessive
some die during embryonic stage | recessive
embryonic/larval foregut | embryonic stage
stomatogastric nervous system
Homozygous embryos exhibit pronounced disruption of the SNS invagination at stage 13. At stage 17 the 'hairpin' loop of the foregut anlage collapses and the oesophagus is swayed anteriorly.