The X:A signal includes a set of genes on X called X-signal elements (XSEs) that repress their direct target gene xol-1 (XO lethal) in a cumulative dose-dependent manner via transcriptional and …
(A–E) Assays of wild-type xol-1 transgenes and deletion derivatives with different combinations of introns show that removal of intron VI prevents FOX-1 from repressing xol-1. Diagrams on the left …
xol-1 transcription is not repressed by high levels of FOX-1.
(A) RNase protection assays show that FOX-1 causes intron VI retention. Shown on the left are diagrams of relevant splice junctions for exon 6 (grey) and coding sequences of exon 7 (blue) that …
(A) Diagram (top) shows the intron and exon structure of xol-1 and the alternative splicing patterns that produce the active 2.2 kb transcript (red dashed line indicating intron VI removal), the …
(A) The promoter and 3' UTR of xol-1 are not sufficient for FOX-1 to repress xol-1. Below the diagram of the Pxol-1::lacZ::xol-1 3' UTR reporter transgene (pMN27) are sections of adult gonads from …
(A) The diagram of intron VI shows the intron VI fragments (A–E) and smaller regions (RNA oligonucleotides B-45 to E-25) tested for direct FOX-1 binding in vitro. Only RNAs from fragments B, C, and …
(A) Graphs show cross-linking experiments comparing binding to 32P-labeled RNA probes of intact intron VI or intron III with different concentrations of purified FOX-1 protein and different cold RNA …
The diagram of intron VI (top left) shows locations of the three regions (blue, yellow, and green) shown to exhibit FOX-1 binding in vitro. RNA sequences corresponding to each color-coded region are …
Overexpression of ASD-1 kills both XO males and XX hermaphrodites.
(A–L) The values in this supplemental figure expand upon the viability information for the same XX genotypes provided in Figure 6. Shown are the average brood sizes and SEM (right side) of xol-1 XX …
Diagrams on the left show the configurations of wild-type and mutant motifs in intron VI of XX animals with either two doses of fox-1 (A) or high doses of fox-1 supplied by an integrated array (yIs44…
(A–F) Diagrams on the left show sequences for the two different xol-1 intron VI combinations assayed in each cohort of sex-1(RNAi) XX animals to assess the dose-dependence of FOX-1 action in …
List of primers.
This table includes a complete list of primers.
List of target-specific sequences for guide RNAs used in CriSPR/Cas9 genome editing experiments.
This table lists the gene targets, the target-specific sequence for each Cas9 guide RNA, the figure in which the results are presented, the genomic coordinates corresponding to each guide RNA, and the reference name of each guide. Two guides were used together to delete the fox-1 gene, and two guides were used together to replace sequences within intron VI of xol-1. Coordinates are based on Wbcel235/c11 version of the C. elegans genome.
DNA sequences of repair templates used for CRISPR/Cas9 genome editing experiments.
This table presents information for CRISPR/Cas9 genome editing experiments involving HDR using single-stranded repair templates. The table lists the gene targets that were edited, the figure in which the results are presented, the DNA sequences of the repair template, with SNPs highlighted in red letters and deletion junctions highlighted in blue letters, the reference names of related guides, and the reference names of the oligonucleotide repair template. Two guide RNAs were used together in combination with the repair template to delete the endogenous fox-1 gene, resulting in the allele fox-1(y793). The double-stranded repair templates used for inducing mutations in the DNA encoding intron VI of endogenous xol-1 are available upon request but are too long to include in this table.
List of oligonucleotides used to screen for CRISPR/Cas9 induced mutations and to determine sequences of resulting mutations.
The table lists the gene targets, the figure or table in which the results are presented, the sequences of oligonucleotides used to screen for CRISPR/Cas9 induced mutations or to determine sequences of resulting mutations, the reference name of each oligonucleotide, and the function of each oligonucleotide. For asd-1, the oligos were used to verify the construction of strains built with a pre-existing asd-1 mutation, not for identifying new mutations made using Cas9. The oligonucleotides BF-2507 and BF-2508 were used to synthesize xol-1 repair templates rather than to identify Cas9-induced mutations in intron VI.