Table S1.
A list of the strains used for this work (related to Materials and Methods)
| Strain | Genotype |
| LM99 | smn-1(ok355)I/hT2(I;III) |
| HA1981 | +/hT2(I;III) |
| DA592 | unc-57(ad592)I |
| CB211 | lev-1(e112)IV |
| HA2251 | smn-1(ok355) unc-57(ok310)I/hT2(I;III) |
| HA2252 | unc-57(ok310)/hT2(I;III) |
| HA1979 | smn-1(ok355)I/hT2(I;III);unc-26(s1710)IV |
| HA1978 | +/hT2(I;III);unc-26(s1710)IV |
| HA2272 | smn-1(ok355)I/hT2(I;III);sdpn-1(ok1667)X |
| HA2271 | +/hT2(I;III);sdpn-1(ok1667)X |
| HA2164 | smn-1(ok355)I/hT2(I;III);unc-18(e234)X |
| HA2165 | +/hT2(I;III);unc-18(e234)X |
| HA2660 | smn-1(ok355)I/hT2(I;III);snb-1(md247)V |
| HA2661 | +/hT2(I;III);snb-1(md247)V |
| HA2131 | smn-1(ok355)I/hT2(I;III);nuIs160[unc-129p::GFP::syd-2]III |
| HA2130 | +/hT2(I;III);nuIs160[unc-129p::GFP::syd-2]III |
| HA2166 | smn-1(ok355)I/hT2(I;III);nuIs183[unc-129p::venus::nlp-21]III |
| HA2167 | +/hT2(I;III);nuIs183[unc-129p::venus::nlp-21]III |
| HA2132 | smn-1(ok355)I/hT2(I;III);nuIs152[unc-129p::GFP::snb-1]II |
| HA2129 | +/hT2(I;III);nuIs152[unc-129p::GFP::snb-1]II |
| HA2491 | +/hT2 (I;III); nuIs214[unc-129p::itsn-1::GFP]III |
| HA2490 | smn-1(ok355)I/hT2(I;III);nuIs214[unc-129p::itsn-1::GFP]III |
| HA2266 | smn-1(ok355)I/hT2(I;III);nuIs184[unc-129p::apt-4::GFP]X |
| HA2265 | +/hT2(I;III);nuIs184[unc-129p::apt-4::GFP]X |
| HA2451 | +/hT2(I;III);rtSi9[Cb-unc-119(+)]IV |
| HA2452 | smn-1(ok355)I/hT2(I;III);rtSi9[Cb-unc-119(+)]IV |
| HA2454 | smn-1(ok355)I/hT2(I;III);rtSi10[smn-1p::smn-1;Cb-unc-119(+)]IV |
| HA2216 | smn-1(ok355)arIs37[myo-3p::ssGFP,dpy-20(+)]I/hT2(I;III) |
| HA2209 | arIs37[myo-3p::ssGFP,dpy-20(+)]I/hT2(I;III) |
| HA2492 | smn-1(ok355)/hT2(I:III);rtSi9[Cb-unc-119(+)]IV;nuIs184[unc-129p::apt-4::GFP]X |
| HA2493 | smn-1(ok355)/hT2(I:III);rtSi10[smn-1p::smn-1;Cb-unc-119(+)]IV;nuIs184[unc-129p::apt-4::GFP]X |
| HA2494 | +/hT2(I;III);rtSi9[Cb-unc-119(+)]IV;nuIs214[unc-129p::itsn-1::GFP]III |
| XE1581 | wpSi10[unc-17p::rde-1::SL2::sid-1+Cb-unc-119(+)]II;eri-1(mg366)IV;rde-1(ne219)V;lin-15B(n744)X |
| KP3948 | eri-1(mg366)IV;lin-15B(n744)X |
| HA2822 | smn-1(rt248)/hT2(I:III);nuIs214[unc-129p::itsn-1::GFP]III |
| HA2824 | smn-1(rt248)/hT2(I:III) |
| HA2823 | smn-1(rt248)/hT2(I:III);nuIs175[myo-2:RFP;unc-129p::RFP::snb-1] |
| HA2826 | smn-1(ok355)I/hT2(I;III);nuIs175[myo-2:RFP;unc-129p::RFP::snb-1] |
| HA2827 | +/hT2(I;III);nuIs175[myo-2:RFP;unc-129p::RFP::snb-1] |
| GS1912 | arIs37[myo-3p::ssGFP+dpy-20(+)]I;dpy-20(e1282)IV |
| HA2748 | arIs37[myo-3p::ssGFP+dpy-20(+)]I;dpy-20(e1282)IV;rtEX845[unc-122p::smn-1RNAi+coel::RFP] |
| HA2749 | arIs37[myo-3p::ssGFP+dpy-20(+)]I;dpy-20(e1282)IV;rtEX846[unc-122p::smn-1RNAi+coel::RFP] |
| HA2750 | arIs37[myo-3p::ssGFP+dpy-20(+)]I;dpy-20(e1282)IV;rtEX847[unc-122p::smn-1RNAi+coel::RFP] |
| HA2751 | arIs37[myo-3p::ssGFP+dpy-20(+)]I;dpy-20(e1282)IV;rtEX848[unc-122p::empty+coel::RFP] |
| HA2752 | arIs37[myo-3p::ssGFP+dpy-20(+)]I;dpy-20(e1282)IV;rtEX849[unc-122p::empty+coel::RFP] |