wuIs151 [ctl-1(+) + ctl-2(+) + ctl-3(+) + myo-2p::GFP].  wuIs151 contains multiple copies of a PCR fragment containing the entire ctl-1 ctl-2 ctl-3 gene cluster.  Slow growing, especially at 25 degrees.  Raise at 20 degress or cooler.