Polytene chromosomes normal.
Survival of heterozygotes is reduced if also heterozygous for certain alleles of tld.
dpp[+]/dpphr90, sax1 has lethal | dominant | maternal effect phenotype
dpp[+]/dpphr90, sax2 has lethal | dominant | maternal effect phenotype
dpp[+]/dpphr90, saxP has partially lethal - majority die | dominant | maternal effect phenotype
Allele class: hin-r