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  • Dale, L. & Slack, J. M. W. 1987. Fate map for the 32-cell stage of Xenopus laevis. Development 99, 527 551.
  • Dent, J. A. & Klymkowsky, M. W. 1989. Whole-mount analyses of cytoskeletal reorganization and function during oogenesis and early embryogenesis in Xenopus. In The Cell Biology of Fertilization (Eds H. Schatten & G. Schatten), pp. 63–103. Academic Press, San Diego.
  • Dumont, J. N. 1972. Oogenesis of Xenopus laevis (Daudin): I. Stages of oocyte development in laboratory maintained animals. J. Morphol. 136, 153 180.
  • Dziadek, M. & Dixon, K. E. 1977. An autoradiographic analysis of nucleic acid synthesis in the presumptive primordial germ cells of Xenopus laevis. J. Embryol. Exp. Morphol. 37, 13 31.
  • Forristall, C., Pondel, M., Chen, L., King, M. L. 1995. Patterns of localization and cytoskeletal association of two vegetally localized RNAs, Vg1 and Xcat-2. Development 121, 201 208.
  • Fujiwara, Y., Komiya, T., Kawabata, H. et al. 1994. Isolation of a DEAD-family protein gene that encodes a murine homolog of Drosophila vasa and its specific expression in germ cell lineage. Proc. Natl Acad. Sci. USA 91, 12 258 12 262.
  • Gruidl, M. E., Smith, P. A., Kuznicki, K. A. et al. 1996. Multiple potential germ-line helicases are components of the germ- line-specific P granules of Caenorhabditis elegans. Proc. Natl Acad. Sci. USA 93, 13 837 13 842.
  • Hay, B., Ackerman, L., Barbel, S., January, L. Y., January, Y. N. 1988a. Identification of a component of Drosophila polar granules. Development 103, 635 640.
  • Hay, B., January, L. Y., January, Y. N. 1988b. A protein component of Drosophila polar granules is encoded by vasa and has extensive sequence similarity to ATP-dependent helicase. Cell 55, 577 587.
  • Hemmati-Brivanlou, A., Frank, D., Bolce, M. E., Brown, B. D., Sive, H. L., Harland, R. M. 1990. Localization of specific mRNAs in Xenopus embryos by whole-mount in situ hybridization. Development 110, 325 330.
  • Henry, G. L. & Melton, D. A. 1998. Mixer, a homeobox gene required for endoderm development. Science 281, 91 96.
  • Houston, D. W., Zhang, J., Maines, J. Z., Wasserman, S. A., King, M. L. 1998. A Xenopus DAZ-like gene encodes an RNA component of germ plasm and is a functional homologue of Drosophila boule. Development 125, 171 180.
  • Hudson, C. & Woodland, H. R. 1998. Xpat, a gene expressed specifically in germ plasm and primordial germ cells of Xenopus laevis. Mech. Dev. 73, 159 168.
  • Ijiri, K. & Egami, N. 1975. Mitotic activity of germ cells during normal development of Xenopus laevis tadpoles. J. Embryol. Exp. Morphol. 34, 687 694.
  • Ikenishi, K. 1982. A possibility of an in vitro differentiation of primordial germ cells (PGCs) from blastomeres containing ‘germinal plasm’ of early cleavage stage in Xenopus laevis. Develop. Growth Differ. 24, 205 215.
  • Ikenishi, K. & Kotani, M. 1975. Ultrastructure of the ‘germinal plasm’ in Xenopus embryos after cleavage. Develop. Growth Differ. 17, 101 110.
  • Ikenishi, K. & Kotani, M. 1979. Ultraviolet effects on presumptive primordial germ cells (pPGCs) in Xenopus laevis after the cleavage stage. Dev. Biol. 69, 237 246.
  • Ikenishi, K., Okuda, T., Nakazato, S. 1984. Differentiation of presumptive primordial germ cell (pPGC)-like cells in explants into PGC in experimental tadpoles. Dev. Biol. 103, 258 262.
  • Ikenishi, K. & Tanaka, T. S. 1993. Xenopus heterochronic presumptive primordial germ cells (pPGCs) implanted in the correct position in host neurula embryos can differentiate into PGCs. Develop. Growth Differ. 35, 439 445.
  • Ikenishi, K. & Tanaka, T. S. 1997. Involvement of the protein of Xenopus vasa homolog (Xenopus vasa-like gene 1, XVLG1) in the differentiation of primordial germ cells. Develop. Growth Differ. 39, 625 633.
  • Ikenishi, K., Tanaka, T. S., Komiya, T. 1996. Spatio-temporal distribution of the protein of Xenopus vasa homologue (Xenopus vasa-like gene 1, XVLG1) in embryos. Develop. Growth Differ. 38, 527 535.
  • Islam, N. & Moss, T. 1996. Enzymatic removal of vitelline membrane and other protocol modifications for whole mount in situ hybridization of Xenopus embryos. Trends Genet.12, 459.
  • Kamimura, M., Ikenishi, K., Kotani, M., Matsuno, T. 1976. Observations on the migration and proliferation of gonocytes in Xenopus laevis. J. Embryol. Exp. Morphol. 36, 197 207.
  • Kloc, M., Spohr, G., Etkin, L. D. 1993. Translocation of repetitive RNA sequences with the germ plasm in Xenopus oocytes. Science 262, 1712 1714.
  • Komiya, T., Itoh, K., Ikenishi, K., Furusawa, M. 1994. Isolation and characterization of a novel gene of the DEAD box protein family which is specifically expressed in germ cells of Xenopus laevis. Dev. Biol. 162, 354 363.
  • Komiya, T. & Tanigawa, Y. 1995. Cloning of a gene of the DEAD box protein family which is specifically expressed in germ cells in rats. Biochem. Biophys. Res. Commun. 207, 405 410.
  • Kotani, M., Ogiso, Y., Ozaki, R., Ikenishi, K., Tsugawa, K. 1994. Presumptive primordial germ cells (pPGCs) and PGCs in tadpoles from UV-irradiated embryos of Xenopus. Develop. Growth Differ. 36, 457 467.
  • Krieg, P. A. & Melton, D. A. 1985. Developmental regulation of a gastrula-specific gene injected into fertilized Xenopus eggs. EMBO J. 4, 3463 3471.
  • Krieg, P. A., Varnum, S. M., Wormington, W. M., Melton, D. A. 1989. The mRNA encoding elongation factor 1-alpha (EF-1alpha) is a major transcript at the midblastula transition in Xenopus. Dev. Biol. 133, 93 100.
  • Lasko, P. F. & Ashburner, M. 1988. The product of the Drosophila gene vasa is very similar to eukaryotic initiation factor-4A. Nature 335, 611 617.
  • Liang, L., Diehl-Jones, W., Lasko, P. F. 1994. Localization of vasa protein to the Drosophila pole plasm is independent of its RNA-binding and helicase activities. Development 120, 1201 1211.
  • Loomis Jr W. F. 1969. Developmental regulation of alkaline phosphatase in Dictyostelium discoideum. J. Bacteriol. 100, 417 422.
  • Nieuwkoop, P. D. & Faber, J. 1967. Normal Table of Xenopus Laevis (Daudin), 2nd edn. North-Holland Publishers, Amsterdam.
  • Olsen, L. C., Aasland, R., Fjose, A. 1997. A vasa-like gene in zebrafish identifies putative primordial germ cells. Mech. Dev. 66, 95 105.
  • Roussell, D. L. & Bennett, K. L. 1993. glh-1: A germline putative RNA helicase from Caenorhabditis elegans has four zinc fingers. Proc. Natl Acad. Sci. USA 90, 9300 9304.
  • Schüpbach, T. & Wieschaus, E. 1986. Maternal-effect mutations altering the anterior–posterior pattern of the Drosophila embryo. Roux’s Arch. Dev. Biol. 195, 302 317.
  • Shibata, N., Umesono, Y., Orii, H., Sakurai, T., Watanabe, K., Agata, K. 1999. Expression of vasa (vas)-related genes in germline cells and totipotent somatic stem cells of planarians. Dev. Biol. 206, 73 87.
  • Stutz, F. & Spohr, G. 1986. Isolation and characterization of sarcomeric actin genes expressed in Xenopus laevis embryos. J. Mol. Biol. 187, 349 361.
  • Wassarman, D. A. & Steitz, J. A. 1991. Alive with DEAD proteins. Nature 349, 463 464.
  • Whitington P. McD. & Dixon, K. E. 1975. Quantitative studies of germ cells during early embryogenesis of Xenopus laevis. J. Embryol. Exp. Morphol. 33, 57 74.
  • Yoon, C., Kawakami, K., Hopkins, N. 1997. Zebrafish vasa homologue RNA is localized to the cleavage planes of 2- and 4-cell stage embryos and is expressed in the primordial germ cells. Development 124, 3157 3166.
  • Züst, B. & Dixon, K. E. 1977. Events in the germ cell lineage after entry of the primordial germ cells into the genital ridges in normal and u.v.-irradiated Xenopus laevis. J. Embryol. Exp. Morphol. 41, 33 46.