Affiliation: | (1) Institute of Biological Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8572, Japan Tel. +81-298-53-4669; Fax +81-298-53-6614 e-mail: sawamura@biol.tsukuba.ac.jp, JP;(2) Drosophila Genetic Resource Center, Kyoto Institute of Technology, Kyoto, Japan, JP |