1. Section on Genetics of Simple Eukaryotes, Laboratory of Biochemical Pharmacology, National Institute of Arthritis, Diabetes, and Digestive and Kidney Diseases, National Institutes of Health, Building 4, Room 116, Bethesda, Maryland 20205; and Chaire de Génétique Faculté des Sciences Agronomiques de l′Etate à Gembloux, 5800 Gembloux, Belgium
2. Section on Genetics of Simple Eukaryotes, Laboratory of Biochemical Pharmacology, National Institute of Arthritis, Diabetes, and Digestive and Kidney Diseases, National Institutes of Health, Building 4, Room 116, Bethesda, Maryland 20205