- Structure and expression of tomato mitochondrial genes coding for tRNA(Cys) (GCA), tRNA(Asn) (GUU) and tRNA(Tyr) (GUA): a native tRNA(Cys) gene is present in dicot plants but absent in monocot plants. Izuchi, S., Terachi, T., Sakamoto, M., Mikami, T., Sugita, M. Curr. Genet. (1990)