Imprecise excision of the progenitor insertion, P{EPgy2}Past1EY01852, resulting in a 1150 bp deletion.
A 1150bp deletion resulting from imprecise excision of P{EPgy2}Past1EY01852 and extending in both directions from the site of the insertion.
Past155-1 homozygous mutants develop 20% more slowly than heterozygotes. Animals reach adulthood but die three to five days after eclosion, whereas sibling controls survive for over a month.