Homozygous l(1)EN81 germline has abnormal egg chambers.
Homozygotes die during the second to third larval instar stages. The fat bodies, Malpighian tubules and salivary glands are reduced. Rare survivors have a soft exoskeleton. The concentration of free Gln is higher than normal and the concentration of free Tyr is lower than normal in lethal-bearing immature stages.
Maternal germline clonal analysis demonstrates variable maternal expression.