nIs190 [myo-2::GFP]. Him. Heterozygotes are wild-type GFP+ and segregate WT GFP+ heterozygotes, Rol Uncs, dead embryos, and males. nIs190 [myo-2::GFP] integrated in or near mnC1. Approx 0.5% recombination seen between nIs190 and mnC1. Fails to complemement all markers on mnC1.

Heterozygotes are WT and segregate WT (heterozygotes), Unc-4 worms which are strong Egl (ty4 homozygotes), and paralyzed Dpy Uncs (mnC1 homozygotes).

Heterozygotes are wild-type and segregate wild-type heterozygotes, DpyUncs (mnC1 homozygotes), and him-14 homozygotes that produce >95% dead embryos and 45% males. Among these surviving progeny, cytologically they have 12 univalents in diakinesis-stage oocytes owing to a failure to form crossovers during meiosis.

WT heterozygotes segregate WT, DpyUnc and unhatched eggs.

Unc. Larvae move. Paralyzed adult. Dystrophic body muscle. M-MATING-NO SUCCESS. Recessive.

Heterozygotes are WT and segregate WT, DpyUncs and dead eggs.

Acetylcholine abnormal. Unc (phenotype exactly like unc-52 except lacking class C acetylcholinesterase).

Unc and Vul.

Unc and Egl.

umnIs32 [myo-2p::GFP + NeoR, II: 11755713 (intergenic)] II. Hets are WT GFP+ and segregate WT GFP+, Unc-4 (GFP-) and paralysed DpyUnc GFP+ (mnC1 homozygotes). Maintain by picking WT GFP+. Derived by insertion of myo-2p::GFP transgene into mnC1 balancer in parental strain SP127 using CRISPR/Cas9.

umnIs37 [myo-2p::mKate2 + NeoR, II: 11755713 (intergenic)] II. Hets are WT mKate2+ and segregate WT mKate2+, Unc-4 (no red fluorescence) and paralysed DpyUnc mKate2+ (mnC1). Maintain by picking WT mKate2+. Derived by insertion of myo-2p::mKate2 transgene into parental strain SP127 using CRISPR/Cas9.

Heterozygotes are WT and segregate WT, DpyUncs and Sqt. age-1(mg109) homozygotes throw all dauers at all temperatures (maternal effect dauer constitutive). age-1(mg109) homozygous animals that are maternally rescued for dauer formation are long-lived.

Abnormal feeding: slow, regular pumping. Vulvaless (incomplete penetrance). Unc.

WT in appearance and movement. Some slight body wall muscle disorganization. More severe gonad disorganization, and greatly reduced brood size. Suppresses the e444, e998, 669, e1012, e1421 and st196 alleles of unc-52.

WT in appearance and movement. Some slight body wall muscle disorganization. More severe gonad disorganization, and greatly reduced brood size. Suppresses the e444, e998, 669, e1012, e1421 and st196 alleles of unc-52.

Heterozygotes are WT and segregate WT, paralyzed Dpys and lethals.

Heterozygotes are WT and segregate WT, DpyUnc, and Lethal Unc-4 (lethal mid-larval). Maintain by picking WT.

Heterozygotes are WT and segregate WT, dauers and DpyUnc.

WT phenotype, segregates WT, Egl (age-1 homozygotes) and DpyUncs. Egl animals give all non-recovering dauer larvae (m333 shows maternal effect), with variable radial shrinkage and variable resistance to 1% SDS. Pick WT to maintain and check for correction segregation of progeny. age-1(m333) pka daf-23(m333).

umnIs32 [myo-2p::GFP + NeoR, II: 11755713 (intergenic)] II. or1985 is a CRISPR/Cas9 engineered deletion of zyg-9 removing the entire open reading frame. Heterozygotes are wild-type and GFP+ and segregate WT GFP+ (hets), or1948 homozygotes (GFP-, lay 100% dead embryos) and paralysed DpyUnc GFP+ (mnC1 homozygotes). Maintain by picking WT GFP+. Reference: Harvey AM, et al. PLoS Genet. 2023 Jan 6;19(1):e1010363. doi: 10.1371/journal.pgen.1010363. PMID: 36608115

Heterozygotes are WT and segregate WT, Uncs and Rollers. or78 zygotic effects: Pv, mild Unc, many explode at vulva upon reaching adulthood. or78 maternal effects: endoderm (E) transformed into mesoderm (MS) in early embryo, severe morphogenesis defect. mig-14, mom-3, pvl-2, and let-553 are the same gene.

Heterozygotes are WT and segregate WT, Dpys which produce dead eggs, and DpyUncs.

Heterozygotes are WT and segregate WT and DpyUnc. age-1(mg44) homozygotes from heterozygous mothers are WT and segregate only dauers at all temperatures. mg44 pka daf-23(mg44).

age-1(mg44) homozygotes throw all dauers at all temperatures (maternal effect dauer constitutive); can be rescued zygotically. age-1(mg44) homozygous animals that are maternally rescued for dauer formation are long-lived. mg44 is a Trp405 Amber mutation. Heterozygotes are WT and segregate WT (1/3 of which throw only dauers) and DpyUncs.

Pick non-Uncs to maintain. arDp2 is derived from mnC1, hence carries dpy-10(e128) and possibly unc-52(e444). arDp2 is a free duplication but does not pass at a high frequency. arDp2 is not stable as a balancer. It is prone to recombination; pick non-Unc and check for segregation of unc-4 and WT in progeny. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozygotes are WT and segregate WT, DpyUncs and Unc Steriles that are slightly Long. sb56 is a recessive zygotic suppressor of let-502(ca201) early larval lethality. Likely null of mel-11.

Heterozygotes are wild type and segregate wild type heterozygotes, paralyzed DpyUncs, and Uncs with germline tumors. Pick WT and check segregation of progeny to maintain. Reference: Vaid S, et al. Development. 2013 Apr;140(8):1645-54.

Heterozygotes are WT and segregate WT, DpyUncs and unc-104(ut60) animals which are L1 lethal coilers.

Heterozygotes are slow (weak) Uncs and segregate paralyzed Uncs and early larval lethals. Dead larvae (ut111 homozygotes) are short, 2-fold and have an irregular shape.

Heterozygotes are WT and segregate WT, DpyUncs and dead eggs. The nos-2(ok230) allele is due to deletion of bases 30999 to 33076 of cosmid ZK1127 (GenBank accession U58758) and also deletes a portion of the him-14 gene (him-14 is in an intron of nos-2).

Heterozygotes are WT and segregate WT, DpyUnc and Rollers. Rollers give only dead eggs. Maintain by picking WT. mex-1 is to the right of rol-1, is uncovered by mnDf87 and is allelic to mel-21.

Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozygotes are WT and segregate WT, DpyUnc and males. The males will mate. Do not distribute this strain; other labs should request it from the CGC. This strain cannot be distributed to commercial organizations. This strain cannot be used for any commercial purpose or for work on human subjects.

Heterozgyotes are WT and segregate WT, DpyUncs, and Unc Pho (slightly slow growing, about 15% shorter than WT and produce about 60% inviable embryos; early broods are less viable than later broods).

Heterozygotes are wild type and segregate wild type, paralyzed Dpys, and die-1 homozygous embryos.

Heterozygotes are WT and segregate WT, dead eggs (homozygous cdl-1(e2510), and Dpy Unc. e2510 carries a missense mutation at the 249th amino acid from Pro to Ser.

Heterozygotes are WT and segregate WT, paralyzed Dpys, and arrested embryos. Throws males. e2500 pka zen-2(e2500).

mel-8 is a maternal effect lethal. WT heterozygotes (sc13 recessive) segregate WT, MelUncSqt (sick and small), mnC1 dpy-10 unc-52 homozygotes (paralyzed Dpys). Rescued by male mating.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4 which give dead eggs. Maintain by picking WT. Strict maternal effect.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4s which give only dead eggs. Maintain by picking WT. Strict maternal effect.

Heterozygotes are WT and segregate WT, DpyUnc, and UncRol (which give only dead eggs). Maintain by picking WT. mel-11 is not strict. See also WBPaper00002726.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4 which give dead eggs. Maintain by picking WT. Strict maternal effect. it9 was previously called mel-21(it9).

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4s which give only dead eggs. Maintain by picking WT. Strict maternal effect.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4s which give only dead eggs. Maintain by picking WT.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4 which give dead eggs. Maintain by picking WT. Strict maternal effect.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4s which give only dead eggs. Maintain by picking WT. Not a strict maternal effect-rescued by male mating.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4s which give only dead eggs (it12 is temperature sensitive). Maintain by picking WT. Strict maternal effect.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4s which give only dead eggs. Maintain by picking WT. Strict maternal effect.

Heterozygotes are WT and segregate WT, DpyUnc and Unc-4s which give only dead eggs. Maintain by picking WT. Strict maternal effect.

Heterozygotes are WT and segregate WT, paralysed DpyUnc and RolUnc-4 which give dead eggs. Maintain by picking WT. Strict maternal effect.