The let-60 locus controls the switch between vulval and nonvulval cell fates in Caenorhabditis elegans.
Han M, Aroian RV, Sternberg PW. The let-60 locus controls the switch between vulval and nonvulval cell fates in Caenorhabditis elegans. Genetics. 1990 Dec; 126(4):899-913.