Air, G. M., Thompson, E. O. P., Richardson, B. J. & Sharman, G. B. (1971). Amino acid sequences of kangaroo myoglobulin and haemoglobin, and the date of marsupial–eutherian divergence. Nature 229, 391–394.
Cattanach, B. M. (1975). Control of chromosome inactivation. Annual Review of Genetics 9, 1–18.
Cooper, D. W., Johnston, P. G., Murtagh, C. E., Sharman, G. B., VandeBerg, J. L. & Poole, W. E. (1975). Sex linked isozymes and sex chromosome evolution and inactivation in Australian marsupials and monotremes. In Isozymes, III Developmental Biology, (ed. Markert, C. L.), pp. 559–573. New York: Academic Press.
Cooper, D. W., Edwards, C., James, E., Sharman, G. B., VandeBerg, J. L. & Graves, J. A. M. (1977). Studies on metatherian sex chromosomes VI. A third state of an X-linked gene: partial activity for the paternally derived Pgk-A allele in cultured fibroblasts of Macropus giganteus and M. parryi. Australian Journal of Biological Sciences 30; 431–443.
Cooper, D. W., Woolley, P. A., Maynes, G. M., Sherman, F. S. & Poole, W. E. (1983). Studies on metatherian sex chromosomes. XII. Sex-linked inheritance and probable paternal X-inactivation of α-galactosidase A in Australian marsupials. Australian Journal of Biological Sciences 36, 511–517.
Dawson, G. W. & Graves, J. A. M. (1984). Gene mapping in marsupials and monotremes. I. The chromosomes of rodent-marsupial (Macropus) cell hybrids, and gene assignments to the X chromosome of the grey kangaroo. Chromosoma 91, 20–27.
Dawson, G. W. & Graves, J. A. M. (1986). Gene mapping in marsupials and monotremes. III. Assignment of four genes to the X chromosome of the wallaroo and the euro (Macropus robustus). Cytogenetics and Cell Genetics 42, 80–84.
Dobrovic, A. & Graves, J. A. M. (1986). Gene mapping in marsupials and monotremes. II. Assignments to the X chromosome of dasyurid marsupials. Cytogenetics and Cell Genetics 41, 9–13.
Donald, J. A. & Hope, R. M. (1981). Mapping a marsupial X chromosome using kangaroo–mouse somatic cell hybrids. Cytogenetics and Cell Genetics 29, 127–137.
Goodpasture, C. & Bloom, S. E. (1975). Visualization of the nucleolus organizer regions in mammalian chromosomes using silver staining. Chromosoma 53, 37–50.
Graves, J. A. M. (1983). Inactivation and reactivation of the mammalian X chromosome – on the threshold of molecular biology. In Development in Mammals, vol. 5, (ed. M. H. Johnson), pp. 251–295.
Graves, J. A. M., Chew, G. K., Cooper, D. W. & Johnston, P. G. (1979). Marsupial–mouse cell hybrids containing fragments of the marsupial X chromosome. Somatic Cell Genetics 5, 481–489.
Hayman, D. L. & Rofe, R. H. (1977). Marsupial sex chromosomes. In Reproduction and Evolution, ed. Calaby, J. H. and Tyndale-Biscoe, C. H.. Canberra: Australian Academy of Science.
Hope, R. M. & Graves, J. A. M. (1978). Fusion and hybridization of marsupial and eutherian cells. V. Development of selective systems. Australian Journal of Biological Science 31, 293–301.
Lyon, M. F. (1961). Gene action in the X chromosome of the mouse (Mus musculus L.). Nature 190, 372–373.
Migeon, B. R., Shapiro, L. J., Norum, R. A., Mohandas, T. & Axelman, J. (1982). Differential expression of steroid sulphatase locus on active and inactive human X chromosomes. Nature 299, 838–840.
Migeon, B. R., Wolf, S. F., Axelman, J., Kaslow, D. C. & Schmidt, M. (1985). Incomplete X chromosome dosage compensation in chorionic villi of human placenta. Proceedings of the National Academy of Sciences, USA 82, 3390–3394.
Miller, O. J., Miller, D. A., Dev, V. G., Tantravahi, R. & Croce, C. M. (1976). Expression of human and suppression of mouse nucleolus organizer activity in mouse–human somatic cell hybrids. Proceedings of the National Academy of Sciences, USA 73, 4531–4535.
Robins, A. J., Hayman, D. L. & Wells, J. R. E. (1984). Ribosomal gene reiteration in a marsupial species with an X-linked nucleolar organizer. Australian Journal of Biological Science 37, 211–216.
Russell, L. B. (1963). Mammalian X chromosome action: inactivation limited in spread and region of origin. Science 140, 976.
Samollow, P. B., Ford, A. L. & VandeBerg, J. L. (1987). X-linked gene expression in the Virginia opossum: differences between the paternally derived Gpd and Pgk-A loci. Genetics 115, 185–195.
Szybalski, W., Szybalska, E. H. & Ragni, G. (1962). Genetic studies with human cell lines. National Cancer Institute Monogaph 7, 75–89.
Takagi, N., Wake, N. & Sasaki, M. (1978). Cytologic evidence for preferential inactivation of the paternally derived X chromosome in XX mouse blastocysts. Cytogenetics and Cell Genetics 20, 240–248.
Therman, E., Sarto, G. E., Palmer, C. G., Kallio, H. & Denniston, C. (1979). Position of the human X inactivation centre on Xq-Human Genetics 50, 59–64.
VandeBerg, J. L., Cooper, D. W. & Sharman, G. B. (1977). Studies on metatherian sex chromosomes, V. Activity of the paternally derived allele at the X-linked Pgk-A locus in some tissues of the kangaroos Macropus giganteus and M. parryi. Australian Journal of Biological Science 30, 421–430.
VandeBerg, J. L., Robinson, E. S., Samollow, P. B. & Johnston, P. G. (1987). X linked gene expression and X chromosome inactivation: marsupials, mouse and man compared. In Isozymes: Current Topics in Biological and Medical Research 15, 225–253.
Wrigley, J. M. & Graves, J. A. M. (1988). Sex chromosome homology and incomplete, tissue-specific X inactivation suggests that monotremes represent an intermediate stage of mammalian sex chromosome evolution. J. Heredity (In the Press.)