Citation: Md. Purugganan et Ji. Suddith, MOLECULAR POPULATION-GENETICS OF THE ARABIDOPSIS CAULIFLOWER REGULATORY GENE - NONNEUTRAL EVOLUTION AND NATURALLY-OCCURRING VARIATION IN FLORAL HOMEOTIC FUNCTION, Proceedings of the National Academy of Sciences of the United Statesof America, 95(14), 1998, pp. 8130-8134