... Laboratory, Uppsalalaan, Utrecht, The Netherlands. ¶Department of Integrated Biosciences, The University of Tokyo, 5-1-5 Kashiwa-no-ha, Kashiwa, Chiba 277-8562, Japan. ¥ The Institute of Physical ... and Technology Corporation, Yoshida-kawaramachi, Sakyo-ku, Kyoto, 606-8305, Japan. ‡Department of Mutagenesis, Radiation Biology Center, Kyoto University, Yoshida Konoe, Sakyoku, Kyoto 606-8501, ... Although these studies arevery powerful and have been very successful, only conspicu-ous gene functions can be detected within the limits of the very labor-intensive phenotype-driven assays. Furthermore,biological...