P{lacW}lqfS011027 is inserted at the 5' end of lqf approximately 32bp downstream of the transcription start site of the lqf-RC, -RB, -RE-, and -RF transcripts.
Insertion in the first intron of lqf.
The P{lacW} insertion is upstream of lqfS011027 coding region.
P{lacW} insertion either in the 5' UTR or within the promoter.
The development of heterozygous lqfS011027 larvae shows practically no differences compared to that of wild-type animals. There is no difference between the diameter of the trophocytes or their nucleus size between homozygous and heterozygous lqfS011027 larvae. Despite these similarities, the fat body of lqfS011027 homozygous larvae does not form any acridine orange or neutral red positive granules that correspond to the autophagic and/or endocytic (heterophagic) vacuoles.
Fat body cells of lqfS011027 larvae are unable to form large autophagosomes and autolysosomes. However, small lysosomes and autophagosomes can be observed in the cytoplasm of the trophocytes. Multivesicular bodies and protein storage granules are also absent from the fat body cells of the mutant animals during the wandering period. The size of the lipid droplets and glycogen areas are smaller than in control animals and the rough endoplasmic reticulum is often fragmented into vesicles. The outer membrane of the mitochondria is thicker and more electron dense than those of the controls.
Homozygous embryos have an excess of cardioblasts.
lqfFDD9/lqfS011027 flies have similar but more severe phenotypes than those of lqfFDD9 homozygotes.
Allelic series based on viability: lqfFDD9 < lqfbE248 < lqfS011027 < lqfBT < lqfARI = lqfL895 = lqfL71.
Allelic series of phenotypic severity: lqfARI >= lqfAG > lqfbE25 > lqfbE248 > lqfS011027.