Temperature sensitive. Cell fusion-defective embryos, larvae and adults at 25C. Cell fusion defects are less penetrant at 15C. Egl, Unv, Pvl, Dpy and 2% Muv at 20C and 25C. Mutants have body morphological defects and bulged tails at all temperatures, male tails are leptoderan. Partial sterility of hermaphrodites: brood size is 48 at 25C. sd-4%. ME=0. ES=3. OA-1 (oj55: complete embryonic and partial post-embryonic epithelial fusion failure). Cloned: encodes a type-I membrane glycoprotein with a single TM domain.

zzIs16 [(pJE3) eff-1p::GFP + rol-6(su1006)]. GFP+ Rollers. Chromosomal insertion of zzEx10. Integration site of zzIs16 not yet mapped, but it is not tightly linked to eff-1 II, unc-119 III, or jcIs1 IV. pJE3 has 7.5 kb of eff-1 upstream sequence inserted into pPD95.75, driving cytoplasmic GFP expression.

zzIs22 [(pJdC41) (eff-1::GFP) + rol-6(su1006)]. Rollers. All worms have tail whips.

GFP inserted into the endogenous eff-1 gene at its C-terminus by Cas9-triggered homologous recombination. Green fluorescence enriched in V.a cell 20min before cell-cell fusion in larvae. Very weak fluorescence in hyp7 cell. Reference: Yang Y, et al. Dev Cell. 2017 Apr 10;41(1):107-120.

Loss of cell fusion in hypodermis (epithelial fusion failures). Viable and fertile as homozygotes. Tail-spike defect in all young larvae, less visible in older larvae and adults. oj55 appears to cause incomplete loss of function, as many cells fuse in postembryonic development. Homozygous males have tail and mating defects. ES-3. Cloned: ORF C26D10.5 encodes a type-I membrane glycoprotein with a single TM domain.

hyEx22 [hsp16-2::eff-1 + ajm-1::GFP + rol-6(su1006)]. Temperature sensitive eff-1 mutation (worms are cell fusion-defective at 25C; cell fusion defects are less penetrant at 15C). AJM-1 marks epithelial junctions. Pick GFP+ Rollers to maintain.

hyEx23 [des-2p::eff-1 + des-2::GFP + rol-6(su1006)]. Cell-specific expression of eff-1 in the PVDs. Partially rescues arborization Eff-1 phenotypes. Pick GFP+ Rollers to maintain. Reference: Oren-Suissa M, et al. Science. 2010 Jun 4;328(5983):1285-8.

hmIs4 [des-2::GFP + rol-6(su1006)]. Dpy Rollers. eff-1(ok1021) was outcrossed 6 times. PVD neurons are hyperbranched and have disorganized menorah structures. Shows reduced sensitivity to strong mechanical stimuli. eff-1(ok1021) is a null allele and has strong arborization and cell fusion defects. Pick rollers to maintain. Reference: Oren-Suissa M, et al. Science. 2010 Jun 4;328(5983):1285-8.

hmIs4 [des-2::GFP + rol-6(su1006)]. Rollers. Temperature sensitive. PVD neurons are hyperbranched and have disorganized menorah structures. eff-1 worms are also cell fusion-defective at 25 C. Cell fusion and arborization defects are less penetrant at 15 C. Grow at 15 C to maintain. Pick rollers to maintain. Reference: Oren-Suissa M, et al. Science. 2010 Jun 4;328(5983):1285-8.

jcIs1 [ajm-1::GFP + unc-29(+) + rol-6(su1006)] IV. Temperature sensitive. Cell fusion-defective embryos, larvae and adults at 25C. Cell fusion defects are less penetrant at 15C. Egl, Unv, Pvl, Dpy and 2% Muv at 20C and 25C. Mutants have body morphological defects and bulged tails at all temperature, male tails are leptoderan. Partial sterility of hermaphrodites: brood size is 48 at 25C. ME=0. Cloned: ORF C26D10.5 encodes a type-I membrane glycoprotein with a single TM domain. ajm-1 was formerly known as jam-1 (Junction Associated Protein) and "the gene encoding the antigen recognized by the monoclonal antibody MH27." jcIs1 consists of pJS191, C45D3 and pRF4. Reference: Mohler WA, et al. Curr Biol. 1998 Sep 24;8(19):1087-90.

jcIs1 [ajm-1::GFP + unc-29(+) + rol-6(su1006)] IV. Loss of cell fusion in hypodermis (epithelial fusion failures). Viable and fertile as homozygotes. Tail-spike defect in all young larvae, less visible in older larvae and adults. oj55 appears to cause incomplete loss of function, as many cells fuse in postembryonic development. Homozygous males have tail and mating defects. ES=3. Cloned: ORF C26D10.5 encodes a type-I membrane glycoprotein with a single TM domain. ajm-1 was formerly known as jam-1 (Junction Associated Protein) and "the gene encoding the antigen recognized by the monoclonal antibody MH27." jcIs1 consists of pJS191, C45D3 and pRF4. Reference: Mohler WA, et al. Curr Biol. 1998 Sep 24;8(19):1087-90.

C26D10.5. Homozygous viable deletion chromosome balanced by GFP- and dpy-10-marked inversion. Heterozygotes are WT with relatively dim pharyngeal GFP signal, and segregate WT dim GFP, Dpy bright GFP (mIn1 homozygotes), and non-GFP ok1021 homozygotes (viable slow-growing DpyUnc). Pick WT dim GFP and check for correct segregation of progeny to maintain. Attribution: This strain was provided by the C. elegans Reverse Genetics Core Facility at the University of British Columbia, which is part of the international C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

Heterozygotes are WT with relatively dim pharyngeal GFP signal. Segregates Dpy with bright GFP (mIn1 homozygotes). Segregates very few escapers that are non-GFP (ok1021 tm2214 homozygotes).

syIs78 [ajm-1::GFP + unc-119(+)] is probably on LG I (not on II, III, V or X). Heterozygotes are slow-growing DpyUnc with cell fusion problems and pharyngeal GFP signal. Segregates arrested hT2 aneuploids, and non-GFP DpyUnc gk324 homozygotes (Sterile, Dpy and Unc). All worms express ajm-1::GFP(Junction Associated Protein). qIs48 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter driving GFP in the intestine, and is homozygous lethal.

zzIs16 [(pJE3) eff-1::GFP + rol-6(su1006)]. Heterozygotes are Rollers with pharyngeal GFP signal, and segregate arrested hT2 aneuploids, and non-GFP gk324 homozygotes (Sterile, Roller and Unc). All worms express GFP driven by eff-1 promoter. qIs48 is an insertion of ccEx9747 with markers: myo-2::GFP expressed brightly in the pharynx throughout development, pes-10::GFP expressed in embryos, and a gut promoter driving GFP in the intestine, and is homozygous lethal.

hyEx21 [hsp-16.2p::eff-1 + rol-6(su1006)]. muIs65 [ajm-1::GFP + dpy-20(+)]. AJM-1 marks epithelial junctions. Pick Rollers to maintain.

hyEx23 [des-2p::eff-1 + des-2::GFP + rol-6(su1006)]. Over-expression of EFF-1 in the PVDs. Shows reduced branching at L4 to adult stages. Pick GFP+ Rollers to maintain. Reference: Oren-Suissa M, et al. Science. 2010 Jun 4;328(5983):1285-8.

zzEx10 [(pJE3) eff-1p::GFP + rol-6(su1006)]. Pick Rollers to maintain. eff-1p expression is observed in epithelia committed to fusion and in fused syncytia.