Transposable elements in medaka fish A. Koga, M. Sakaizumi and H. Hori 1
ORIGINAL ARTICLES
Neurobiology
Disruption of mitochondria is an early event during dolichylmonophosphate-induced apoptosis in U937 cells E. Yasugi, I. Uemura, T. Kumagai, Y. Nishikawa, S. Yasugi and A.Yuo 7
The nitric oxide/cyclic GMP pathway in the olfactory processing systemof the terrestrial slug Limax marginatus S. Fujie, H. Aonuma, I. Ito, A. Gelperin and E. Ito 15
Physiology
Scanning X-ray microscopy of living and freeze-dried blood cells in twovanadium-rich ascidian species, Phallusia mammillata andAscidia sydneiensis samea T. Ueki, K. Takemoto, B. Fayard, M. Salomé, A. Yamamoto, H.Kihara, J. Susini, S. Scippa, T. Uyama and H. Michibata 27
Cell Biology
Enzymatic form and cytoskeletal form of bifunctionalTetrahymena 49kDa protein is regulated by phosphorylation H. Kojima and O. Numata 37
Biochemistry
Sperm-egg binding mediated by sperm -L-fucosidase in theascidian, Halocynthia roretzi M. Matsumoto, J. Hirata, N. Hirohashi and M. Hoshi 43
Developmental Biology
Repression of zygotic gene expression in the putative germline cells inascidian embryos M. Tomiaka, T. Miya and H. Nishida 49
Group B sox genes that contribute to specification of thevertebrate brain are expressed in the apical organ and ciliary bands ofhemichordate larvae S. Taguchi, K. Tagawa, T. Humphreys and N. Satoh 57
Role of BMP-4 in the inducing ability of the head organizer inXenopus laevis A. Sedohara, A. Fukui, T. Michiue and M. Asashima 67
Potential of veg2 blastomeres to induce endodermdifferentiation in sea urchin embryos M. Iijima and S. Amemiya 81
Reproductive Biology
PCNA protein expression during spermatogenesis of the Japanese eel(Anguilla japonica) C. Miura, T. Miura and M. Yamashita 87
Expression and localization of prolyl oligopeptidase in mouse testis andits possible involvement in sperm motility A. Kimura, H. Matsui and T. Takahashi 93
Terminal phase males stimulate ovarian function and inhibit sex changein the protogynous wrasse Thalassoma duperrey C.E. Morrey, Y. Nagahama and E.G. Grau 103
Endocrinology
Mechanisms of the modulation of pacemaker activity by GnRH peptides inthe terminal nerve-GnRH neurons H. Abe and Y. Oka 111
Animal Diversity and Evolution
Molecular evaluation of phylogenetic significances in the highlydivergent karyotypes of the genus Gonocephalus (Reptilia:Agamidae) from tropical Asia M. Honda, H. Ota, S. Sengoku, H.-S. Yong and T. Hikida 129
