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arIs198 [glt-3p::CFP + glt-3p::LifeAct::TagRFP]. Large cysts in excretory canal, sometimes visible with dissecting microscope. Fluorescence shows some filamentation of actin fibers at apical (lumenal) surface of cysts. Derived by crossing parental strains MT6984 to GS7637 and outcrossing 3x to remove cyk-1 mutation on LG III. Reference: Yang Z, et al. J Cell Biol. 2020 Nov 2;219(11):e202003152. doi: 10.1083/jcb.202003152. PMID: 32860501.

Wide, meandering excretory canals, with some septate fluid-filled cysts. Canal enlargement visible from L1 through adult. Defect visible only by Nomarski microscopy. n2669 was originally listed as an allele of exc-5. Later repeated complementation tests showed n2669 to be an allele of a novel locus positioned close to exc-5.