Institution: | (1) Department of Genetics, University of Wisconsin, 445 Henry Mall, 53706 Madison, WI, USA;(2) Present address: Institut für Genetik, Universität zu Köln, Weyertal 121, 5000 Köln 41, FRG;(3) Present address: Room 210, Plant Research Laboratory, Michigan State University, 48824 East Lansing, MI, USA |