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Strain Species Genotype
CB4355 C. elegans him-8(e1489) IV; smg-4(ma116) V. Show Description
Hermaphrodites have an abnormal protrusive vulva. Segregate males with abnormally swollen bursa. ma116 is a weak recessive suppressor of certain alleles of certain genes.
CB4549 C. elegans dpy-11(e224) smg-4(ma116) V. Show Description
Dpy hermaphrodites. Protruding vulva in adult; viable at all temperatures.
SZ340 C. elegans smg-4(az152) V. Show Description
CRISPR/Cas9 engineered smg-4 null allele. smg-4(az152) allele is confirmed NMD-defective by both the presence of the protruding vulva phenotype and the accumulation of NMD-targeted isoforms. smg-4(az152) is easy to track in crosses by PCR and digestion with BstBI (see S1 text of Suzuki, et al. for sequence of allele) and essentially mimics ma116 in having a G->A mutation at the last base of intron 1. az152 also removes two bases of exon 2 and inserts 50nt in exon 2. Reference: Suzuki JMNGL, et al. PLoS Genet. 2022 Feb 10;18(2):e1010028. doi: 10.1371/journal.pgen.1010028. PMID: 35143478.