The following information accompanied stocks donated to the Bloomington Stock Center by John Roote and Michael Ashburner (6/05). mwh2 is a loss-of-function allele of mwh (FBgn0002912) isolated in the lab of Paul Adler. TM3, mwh2 ru1 Sb1 is the balancer short name of a TM3 (FBab0005463) variant.