Gregor Mendel (1822-72) first identified the importance of dominant and recessive traits in plant heredity. Little known during his lifetime, Mendel's work was first appreciated around 1900 by scientists who used his discoveries to bred more productive strains of cattle and wheat. From her reference, Miles seems to have been aware of the work of R. H. Biffen, a pioneer in the genetic engineering of such cereals as wheat and barley.