Search Strains

Wild isolate from Palm Canyon, CA. Segregated to remove gro-1(e2400) [CB4512]. Caenorhabditis elegans wild isolate CB gro-1(+) subclone of PaC1 (Tc1 pattern IV). For whole-genome sequence-verified wild strains, please request from the Caenorhabditis Natural Diversity Resource (www.caendr.org).

Slow growing. Homozygous gro-1(e2400) derived from PaC-1 (CB4507). Caenorhabditis elegans wild isolate CB subclone of PaC1 (Tc1 pattern IV?)].

Levamisole resistant. Slow growing.

Obligate male/female strain; maintain by crossing. Anatomically normal XX females and XX males. Male/female strain with sex determined by fem-1(+). Reference: Strain 11 in Hodgkin (2002) PMID: 12399387.

y1 is a temperature sensitive mutation affecting only XX animals. him-8(e1489) causes X non-disjunction, resulting in many males. Grow at 15C. XX and XXX animals not viable above 15C. After shifting to 25C, surviving population is almost all XO males.

Anatomically normal XX females and XX males.

Obligate male/female strain; maintain by crossing. Anatomically normal XX females and XX males. Male/female strain with sex determined by an extrachromosomal transgene array carrying fem-1(+). Reference: Strain 16 in Hodgkin (2002) PMID: 12399387.

Variable phenotypes, slightly dumpy and/or uncoordinated, especially at 25C. Grows poorly at 15C. Low fertility. sup-33(st389) is a weak amber suppressor; e2017 and e138 are amber mutations. Reference: Kondo K, et al. (1990) J Mol Biol. 1990 Sep 5;215(1):7-19.

Wild-type hermaphrodites segregating wild-type hermaphrodites, Unc-24 females, Unc Dpy hermaphrodites. Maintain by picking wild-type hermaphrodites. Deletion allele of fem-1, with unusual maternal effect. Reference: Spence AM, et al. Cell. 1990 Mar 23;60(6):981-90. Johnson CL & Spence AM.. Science. 2011 Sep 2;333(6047):1311-4.

Unc.

dpy-26(n199) is XO viable, XX lethal. eDp26 is a duplication of the left end of X, attached to X in an inverted orientation. Strain gives non-Dpy Egl hermaphrodites, intersexes, males and dead eggs.

Male/female strain which must be maintained by mating. spe-12(hc76) prevents self-fertility in hermaphrodites but does not impair spermatogenesis in males. Presence of him-8(e1489) increases male frequency.

Obligate XO male/female strain, propagate by crossing. Low fertility. Fertile XO females and XO males; inviable XX embryos and larvae. Reference: Strain 7 Hodgkin (2002) PMID: 12399387.

eEx36 [F16E1 + rol-6(su1006)]. eEx36 carries multiple copies of fox-1, which confers a Xol phenotype and pRF4 which confers a Rol phenotype. dpy-26(n199) is XO viable and XX lethal. Strain consists mostly of Rol hermaphrodites and non-Rol males, all XO.

Slow growth. Maternal rescue: m+z- homozygotes have no obvious phenotype.

Heterozygotes are Unc and segregate Uncs, dead eggs, and WT (dif-1/dif-1). The WT animals give 100% dead eggs. dif-1 is a maternal effect embryonic lethal gene and e2562 is a putative null allele.

Severely uncoordinated coiler, slow growing. Useful strain for selecting non-Sup-1 suppressors of unc-17(e245). Reference: Mathews et al. (2012) PMID: 23051648.

WT hermaphrodites segregate WT hermaphrodites and males, Dpy hermaphrodites and males and Stu (Sterile and Uncoordinated) hermaphrodites and males.

WT hermaphrodite if grown at 15-20C. WT females if grown at 25C. When crossed, these females yield only XX viable hermaphrodite progeny, all XO progeny are dead.

Partial intragenic revertant. Weak Egl phenotype, less severe than egl-26(e1952). Reference: Hodgkin (1986) PMID: 3770465.

Vab XX hermaphrodites and XO males, viable at all temperatures. Adult hermaphrodite tail spike is invariably shortened and/or vacuolated, often also abnormal in larvae. Possible excretory cell abnormalities. Rays of adult male tail variably abnormal, other structures normal; males can mate.

Him. Temperature-sensitive: infertile above 20C. Variably masculinized XX hermaphrodites segregating normal XO males. Stronger XX masculinization than null alleles of tra-3. Reference: Francis et al. (1995) PMID: 7713420.

let-560(e2658) was a spontaneous mutation in strain DH424. let-560 homozygotes are late embryonic lethal. Strain segregates WT, Vul and dead eggs.

Resistant to infection by Microbacterium nematophilum (no tail swelling). Slightly small.

Temperature-sensitive. Maintain at 15C. Gonad development abnormal, sterile at 25C, variably fertile at 15C. Reference: Hodgkin (unpublished).

Viable, Bus, resistant to Leucobacter Verde2, hypersensitive to Leucobacter Verde1. e2715 is a small deficiency (3191 bp) which removes all of the bus-10 exons and internal ncRNA genes ZK596.4 & ZK596.5. Reference: O'Rourke et al (in preparation).

Heterozygotes are Unc and segregate Unc, non-Unc Sterile Gon, and dead eggs.

mIs12 [myo-2p::GFP + pes-10p::GFP + F22B7.9p::GFP] II. Hermaphrodites expressing compound GFP reporter (see PD4790). Strong pharyngeal muscle expression, easily scored by GFP dissecting scope. mIs12 is tightly linked to unc-4 II, and not to LG III or IV as previously reported. mIs12 homozygous males mate well (ME3).

Unc hermaphrodites and males. Mate have variably abnormal tail anatomy. ME 0.

ccIs4251 [(pSAK2) myo-3p::GFP::LacZ::NLS + (pSAK4) myo-3p::mitochondrial GFP + dpy-20(+)] I. Superficially WT hermaphrodites and males expressing GFP in nuclei and mitochondria of body wall muscles. Fluorescent body wall muscle nuclei can be seen by dissecting microscope with epifluoresence optics. Males mate poorly (ME 1/2). ccIs4251 mapped to LGI, + 2.5.

Resistant to infection by Microbacterium nematophilum (no tail swelling).

Resistant to infection by Microbacterium nematophilum (no tail swelling).

Resistant to infection by Microbacterium nematophilum (no tail swelling).

Male/hermaphrodite strain, propagate by crossing. Fertile XX hermaphrodites and fertile XX males. Obligate XX strain with sex determined by amber-suppressing tRNA, sup-34. Reference: Strain 14 in Hodgkin (2002) PMID: 12399387.

Abnormal response to infection by Microbacterium nematophilum (no tail swelling). Abnormal lectin staining.

Paralyzed Unc. Small.

Temperature-sensitive: Maintain at 15C. Stable, temperature-sensitive tetraploid strain: fertile 4A;3X hermaphrodites and 4A;2X males at 15C; fertile 4A;3X females and feminized sterile 4A;2X males at 25C. Reference: Hodgkin (2002) PMID: 12399387.

bgIs312 [pes-6::GFP]. GFP expression in excretory cell only. Bus (resistant to infection by M. nematophilum and Leucobacter Verde2), hypersensitive to Leucobacter Verde1, bleach-sensitive, drug-sensitive; Him (high incidence of males). e2923 is a Mos1 insertion in bus-17 (ZK678.8). Reference: Yook & Hodgkin (2007), Genetics 175: 681-697

Twitcher.

Surface abnormal. Resistant to infection by Microbacterium nematophilum (no tail swelling). Nonsense mutation Q89stop(UAA).

Bus: resistant to M. nematophilum, Leucobacter Verde2; hypersensitive to Leucobacter Verde1. Strong nonsense mutation of bus-12 (Gln123Amber); reference null allele. Reference: Gravato-Nobre et al. (2011) PMID: 20980242.

No obvious phenotype, apparently wild-type sensitivity to pathogens. Derivative of RB1663, further out-crossed into wild-type background. Reference: O’Rourke et al. (2005) PMID: 16809667.

nbEx146 [glf-1p::glf-1(+) + sur-5p::GFP]. Pick GFP+ animals to maintain. Array rescues glf-1(null) mutant. Reference: Novelli et al. (2009) PMID: 19751718.

Maintain at 15C. Small, sluggish, slow-growing fragile hermaphrodites. Almost inviable above 20C. Reference: Novelli et al. (2009) PMID: 19751718.

Viable, surface abnormal, Bus (resistant to infection by M. nematophilum), resistant to Leucobacter Verde2, hypersensitive to Leucobacter Verde1. Reference: Gravato-Nobre et al. (2011) PMID: 20980242.

Viable, Bus (M. nematophilum resistant), resistant to Leucobacter Verde2, hypersensitive to Leucobacter Verde1. e2737 is a ~4.5 kb deficiency which removes all of the bus-10 exons, internal ncRNA genes ZK596.4 & ZK596.5, and ZK596.1. Reference: O'Rourke et al (in preparation).

Bus, bleach-sensitive, resistant to Leucobacter Verde2 and Leucobacter Verde1. e2715 is a small deficiency (3191 bp) which removes all of the bus-10 exons and internal ncRNA genes ZK596.4 & ZK596.5. Reference: O'Rourke et al (in preparation).

Skiddy, bleach-sensitive, Bus (resistant to infection by M. nematophilum), resistant to Leucobacter Verde2 and to Leucobacter Verde1. Missense mutation in Y11D7A.9. Reference: O'Rourke et al (in preparation).

Viable, but defective in bacterial grinding and hypersensitive to bacterial pathogens. Derived by out-crossing parental strain VC2496. Reference: Gravato-Nobre et al. (2016) PMID: 27525822.