The Caenorhabditis elegans genes sqv-2 and sqv-6, which are required for vulval morphogenesis, encode glycosaminoglycan galactosyltransferase II and xylosyltransferase - Hwang, H Y; Olson, S K; Brown, J R; Esko, J D; Horvitz, H R (J Biol Chem, 2003)