Affiliation: | 1. Afdeling Genetica, Biologisch Laboratorium, Vrije Universiteit, De Boelelaan 1087, 1081 HV, Amsterdam, The Netherlands 2. Genetisch Instituut, Universiteit van Amsterdam, Kruislaan 318, 1089 SM, Amsterdam, The Netherlands 3. Max-Planck-Institut Für Züchtungsforschung, Egelspfad, D-5000, K?ln 30, Federal Republic of Germany 4. Bayer AG, Leverkusen, Federal Republic of Germany
|