Figure 1. Assessment of genetic interactions: (A) ALS genes of interest (left) and corresponding deletion alleles in C.elegans orthologs (right). (B) Representative images from sod-1WTc (left) and sod-1G85Rc (right) after 22 hours of paraquat exposure. Animals with three or four phasmid neurons that fill with dye are scored as having no degeneration. Animals are outlined, fluorescence in the gut is visible in each image, and location of missing neurons is outlined in sod-1G85Rc . 63x magnification, scale bar 20um. (C) Glutamatergic neuron degeneration: after 22 hours of paraquat exposure, an increased percentage of
figo-1(
tm5202); sod-1G85Rc double mutant animals showed no degeneration, compared to sod-1G85Rc animals. Three independent trials totalling n=30 animals, two-tailed t-test, p=0.03. Dots represent the average from each trial of 10 animals. Error bars indicate standard error of the mean. All data were collected blind to genotype.(D-G) Glutamatergic neuron degeneration as described in C for other genotypes.