Presently, numerous mutants induced with chemicals, radiationandinsertionof transposonsor T-DNA are being used to produce saturated genetic maps and explore genomics, gene expression and gene regulation. The sequencingof some plant genomesare completed but assigning functions to many of the DNA sequences would not be possible but for the mutants induced with gamma rays, fast neutrons or chemical mutagens (Ahloowalia & Maluszynski, 2001). Thus, many mutants, which currently are of no breeding value, are becoming important tools in genome research. Unfortunately, thousands of such mutants were discarded and thrown away by geneticists and breeders, as somethingunwanted.