Figure 1.
glp-1(
bn18) enhancer allele
om92 disrupts germline function and is likely a null allele of the
ekl-1 gene:(A) DIC images of representative germlines from young adult hermaphrodites of the indicated strains raised at 20 °C. Asterisks indicate the distal tip cell. Arrows indicate location of sperm. Arrowheads indicate location of oocytes. (B) Fluorescence images of representative DAPI-stained germlines from young adult hermaphrodites of the indicated strains raised at 20 °C. Marking symbols are the same as in (A). (C) Screenshot of
ekl-1 gene location on LG I and gene organization from Wormbase (WS285, https://wormbase.org) indicating location and length of the
ekl-1(
om92) deletion. (D) Partial sequence alignment of
ekl-1(
om92) and
ekl-1(+) genomic sequence indicating precise extent and location of the
ekl-1(
om92) deletion. Exon sequences are uppercase while intron sequences are lowercase. WT, wildtype. (E) Schematic diagram of predicted proteins encoded by
ekl-1(
om92) (above) and
ekl-1(+) (below). Red boxes in the predicted wildtype EKL-1 protein indicate locations of Tudor domains according to UniProt (Release 2022_03, https://www.uniprot.org/). The black box in the predicted mutant EKL-1 protein indicates the extent of the amino acid sequence changes caused by the
ekl-1(
om92) deletion and resulting frameshift. The C-terminal amino acid sequence resulting from the frameshift (after residue T81) is shown. The predicted length of the mutant EKL-1 protein is 100 amino acids, and the wildtype protein is 606 amino acids.