Deletion which removes the miRNA cluster containing the mir-984, mir-983-1 and mir-983-2 miRNAs. A pair of inverted attP sites flanking a single P1\loxP site are present at the site of the deletion.
Homozygous viable. Homozygous females show a significant decrease in median lifespan compared to controls.
Homozygous males and females are fertile.