Heterozygotes are WT and GFP+ in the pharynx. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Presence of ces-1 is inferred from strain construction but not experimentally verified. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

WT gross phenotype, with GFP semi-dominantly expressed in 4-60 cell embyros, pharyngeal muscle and gut. Segregates WT, brighter Dpy GFP mIn1 homozygotes and non-GFP bli-2 unc-4 homozygotes. Pharyngeal and gut GFP is easily seen in a UV dissecting microscope; early embryonic signal requires higher magnification. mIs14 occasionally crosses off mIn1[dpy-10], apparently by double recombination. Pick WT, check for GFP and check for correct segregation of progeny to maintain. mIs14 is ccEx9747 integrated into mIn1[dpy-10]. This is a three-construct element containing myo-2 and pes-10 promoters and a gut enhancer fused individually to GFP coding sequence.

egl-27(we3) animals have variable body morphology defects with cold sensitive embryonic/L1 lethality (5% die at 22C, 90% at 15C). Maternal effect vab-7(ed6) enhancer; semi-lethal with vab-7(ed6).

axEx1125 [pie-1p::mex-5::GFP::pie-1 3’UTR + rol-6(su1006) + N2 genomic DNA]. Maintain at 25C. Pick Rollers to maintain. axEx1125 contains pKR2.04, a construct carrying MEX-5::GFP in vector pKR1.42; pKR1.42 uses the pie-1 promoter, enhancer, and 3? UTR to drive maternal expression of GFP in embryos. Animals with the array are Rollers. Animals which have lost the array are WT.

Slow growth and a maternal-effect enhancer of the efl-1(se1) embyronic lethal phenotype. Unc.

Heterozygotes are WT and glow, segregate non-glowing Dpy Steriles. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. 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. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

Segregates WT green-glowing heterozygotes and non-glowing Fogs. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. 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. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

Segregates WT green-glowing heterozygotes and non-glowing steriles. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. 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. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

q624 has variable gonad defects and can be maintained as a homozygote. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. 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. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

Segregates WT green-glowing heterozygotes and non-glowing cdk-9 homozygotes (arrest as L1-L2 larvae). qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Reference: Bowman EA, et al. Development. (In Press).

ckSi12 [cdk-9(D235N)::mCherry + unc-119(+)] II. Segregates WT green-glowing heterozygotes and non-glowing cdk-9 homozygotes (arrest as L1-L2 larvae). qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Reference: Bowman EA, et al. Development. (In Press).

ckSi21 [cdk-9::mCherry::pal-1 3'UTR + unc-119(+)] II. mCherry is expressed in all somatic nuclei; expressed in germline only at end of oogenesis. hT2 segregates WT green-glowing heterozygotes and non-GFP cdk-9 homozygotes (normally arrest as L1-L2 larvae; cdk-9 homozygotes carrying ckSi21 (GFP- mCherry+) are viable but sterile. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Reference: Bowman EA, et al. Development. (In Press).

Heterozygotes are WT and segregate WT (fluorescent), Dpys (highly fluorescent) and L3 lethals (non-fluorescent). GFP semi-dominantly expressed in 4-60 cell embyros, pharyngeal muscle and gut. Pharyngeal and gut GFP is easily seen in a UV dissecting microscope; early embryonic signal requires higher magnification. mIs14 occasionally crosses off mIn1[dpy-10], apparently by double recombination. mIs14 is ccEx9747 integrated into mIn1[dpy-10]. This is a three-construct element containing myo-2 and pes-10 promoters and a gut enhancer fused individually to GFP coding sequence. Called LB21B.

vsIs172 [lin-11(enhancer)::pes-10p::GCaMP5 + lin-11(enhancer)::pes-10p::mCherry + lin-15(+)]. Integrated transgene using lin-11 enhancer region fused to the pes-10 basal promoter to drive GCaMP5 and mCherry expression in VC motor neurons; useful for visualizing and quantitating calcium influx in VC motor neurons. Reference: Collins K, et al. Elife. 2016 Nov 16;5. pii: e21126. doi: 10.7554/eLife.21126.

Heterozygotes are WT with pharyngeal GFP signal, and segregate WT GFP, arrested hT2 aneuploids, and non-GFP mfap-1 homozygotes. Pick WT GFP and check for correct segregation of progeny to maintain. mfap-1(n4564 n5214) mutants exhibit temperature-sensitive lethality: at 15°C, (n4564 n5214) homozygous animals grow and behave similarly to wild-type; at 20°C mutant animals grow more slowly, have few progeny and are hyperactive; at 25°C the mutant strain is embryonically lethal. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Reference: Ma L, et al. PLoS Genet. 2012;8(7):e1002827.

Pick wild-type GFP+ to maintain. Heterozygotes are wild-type GFP+ and segregate WT green-glowing heterozygotes and non-glowing rba-1 homozygotes. rba-1(n5418) homozygotes are sterile or produce eggs that fail to hatch. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Reference: Nakano S, Stillman B, Horvitz HR. Cell. 2011 December 23; 147(7): 1525-1536.

Heterozygotes are WT and GFP+ in the pharynx. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Presence of ces-1 is inferred from strain construction but not experimentally verified. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Reference: Nakano S, et al. Cell. 2011 Dec 23;147(7):1525-36.

vlcEx588 [aak-2p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains aak-2 enhancer sequence (+748, +1527) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785. PMID: 29553368.

vlcEx599 [ast-1p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains ast-1 enhancer sequence (-2852, -1999) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx641 [F37A8.5p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains F37A8.5 enhancer sequence (-2442, -1705) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx651 [lgc-49p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains lgc-49 enhancer sequence (-2649, -1782) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx653 [pde-3p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains pde-3 enhancer sequence (-2539, -1599) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx666 [klp-7p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains klp-7 enhancer sequence (+1434, +2287) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx673 [unc-32p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains unc-32 enhancer sequence (-1009, -76) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx683 [mgl-2p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains mgl-2 enhancer sequence (-4183, -3367) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx709 [mec-10p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains mec-10 enhancer sequence (-2831, -1860) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx712 [npr-1p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains npr-1 enhancer sequence (-6888, -6130) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx800 [pan-1p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains pan-1 enhancer sequence (-1050, -148) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx1091 [snt-1p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains snt-1 enhancer sequence (+993, +2170) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx1092 [sprr-1p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains sprr-1 enhancer sequence (-2810, -1905) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx1093 [sem-4p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains sem-4 enhancer sequence (+3376, +4551) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

vlcEx1094 [C53B4.4p::GFP::unc-54 3'UTR + rol-6(su1006)]. Not all transgenic animals roll well; pick GFP+ or Rollers to maintain. Reporter contains C53B4.4 enhancer sequence (-1590, -338) inserted into pDD95.75. Reference: Lloret-Fernández et al. eLife 2018;7:e32785 DOI: 10.7554/eLife.32785.

Heterozygotes are WT and GFP+ in the pharynx. ot59 is homozygous inviable. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. otIs3[lin-15(+) + gcy-7::GFP]. otIs3 is expressed in ASEL in WT animals. In this ot59 strain, otIs3 is expressed in ASEL and ASER.

A4e enhancer was deleted in endogenously-tagged cfi-1(kas16[mNG::AID::cfi-1]). Expression of cfi-1::mNG::AID is lost in VNC motor neurons. Reference: Li Y, et al. Elife. 2020 Oct 1;9:e59464. doi: 10.7554/eLife.59464. PMID: 33001031.

Bacteria. E. coli harboring the plasmid PB255, which uses the lin-31 promoter variant to express the lin-31::VP16 chimeric gene. It is particularly useful for the expression of heterologous genes in the vulval precursor cells. PB255 possesses three main components : an enhancer, a promoter region, a multi-cloning site (MCS), and a 3' UTR derived from the unc-54 gene. [CGC note: The plasmid in this strain was constructed from pBS II KS(+) and is likely Amp-R, but Amp-R has not been confirmed]. Biosafety Level: BSL-1.

F55F8.3 Heterozygotes are WT and GFP+. Segregates very rare homozygous hT2 glowing animals. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: TACCAGTCAGAGTTGCCACG. Outer Right Sequence: GAATTGCGCCAATGAAGATT. Inner Left Sequence: TCAATTGCATTCCGTGATGT. Inner Right Sequence: GCGGAATTCGTGCTTTGTAT. Inner Primer PCR Length: 3397. Estimated Deletion Size: about 1300 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

T25G3.2 Heterozygotes are WT and GFP+. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Segregates very rare homozygous hT2 glowing animals. Outer Left Sequence: tgtggctgtgttgcaaagat. Outer Right Sequence: tggagaagcattccgagagt. Inner Left Sequence: atttgcacttcagctggctt. Inner Right Sequence: ggttcatcggtttcctcgta. Inner Primer PCR Length: 3205. Estimated Deletion Size: about 1600 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

C34G6.2 Heterozygotes are WT and GFP+. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: agatgggatgatggagcaag. Outer Right Sequence: caagaggtccggatcaaaag. Inner Left Sequence: gctgaggttgcttaggttgc. Inner Right Sequence: atctccgaaatcgtcacgtc. Inner Primer PCR Length: 3245. Estimated Deletion Size: about 2250 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

C54G4.8 Heterozygotes are WT and GFP+. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: ccgaagaattccgaatcaaa. Outer Right Sequence: tatcggcgcaagctactttt. Inner Left Sequence: tttggcgtcgaagaataacc. Inner Right Sequence: atgctgaggatcggattttg. Inner Primer PCR Length: 2598. Estimated Deletion Size: about 1600 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

F49D11.9 Heterozygotes are WT and GFP+. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: aattgccaactgccgattat. Outer Right Sequence: tcggggagtacacaggctac. Inner Left Sequence: aagaacttcagagttgccgc. Inner Right Sequence: cgagctccataaaatcgcat. Inner Primer PCR Length: 2923. Estimated Deletion Size: about 900 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

ZC395.2 Heterozygotes are WT and GFP+. Maintain by picking GFP+ worms. ok1247 animals are homozygous viable. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: CGGGTTTCGCACTATTTTGT. Outer Right Sequence: CAGCTACCGTACCCGACATT. Inner Left Sequence: GCTGGCCCAGTACATTTGTT. Inner Right Sequence: CAGTGTTCCGGATTTCAGGT. Inner Primer PCR Length: . Estimated Deletion Size: about 1250 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

Y110A7A.12 Heterozygotes are WT and GFP+. Maintain by picking GFP+ worms. ok1054 animals are homozygous viable. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: GAAACACACAGGAACGGGAT. Outer Right Sequence: AATCGGCGTTTTTCAGAATG. Inner Left Sequence: TGGCAGAAGATGATCCAGTG. Inner Right Sequence: GCGTGGATCTCGATTACGAT. Inner Primer PCR Length: 2442. Estimated Deletion Size: about 1300 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

B0025.2 Heterozygotes are WT and GFP+. Maintain by picking GFP+ worms. ok1288 is homozygous viable. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: ttttatcgattttcccaccg. Outer Right Sequence: cctcgcccatttactggtta. Inner Left Sequence: agacccaggaaaagttcggt. Inner Right Sequence: accatcatccaaaattgcgt. Inner Primer PCR Length: 3177. Estimated Deletion Size: about 1800 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

C10H11.9 Heterozygotes are WT and GFP+. Maintain by picking GFP+ worms. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Outer Left Sequence: tcaatgaagcgtcgaagttg. Outer Right Sequence: gatcgagataatgcgggaga. Inner Left Sequence: cgagttcacgagagagaccc. Inner Right Sequence: gccgaagacatttaacggaa. Inner Primer PCR Length: 3323. Estimated Deletion Size: about 1800 bp. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype. Attribution: This strain was provided by the C. elegans Gene Knockout Project at the Oklahoma Medical Research Foundation, which was part of the International C. elegans Gene Knockout Consortium, which should be acknowledged in any publications resulting from its use. Paper_evidence WBPaper00041807

Fully penetrant XO lethal. XX is WT. Enhancer of her-1(sd), tra-2(lf), tra-3(lf) XX masculinization phenotypes. Does not enhance tra-1(lf).

Fully penetrant XO lethal. XX is WT. Enhancer of her-1(sd), tra-2(lf), tra-3(lf) XX masculinization phenotypes. Does not enhance tra-1(lf).

sur-6(sv30) homozygotes are viable but segregate 100% dead embryos, and are GFP-. Weak Vulvaless and Unc. Maintain strain by picking GFP+ heterozygotes. qIs48 is an insertion of ccEx9747 (carries myo-2::GFP, pes-10::GFP, and a gut enhancer fused to GFP) onto the hT2 chromosome and is homozygous lethal. Note: qIs48 has been observed to recombine off hT2, typically leaving behind a functional homozygous viable hT2 with Bli-4 phenotype.

Enhancer of RNAi.