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Biochemical differentiation among karyotypic forms of Australian Rattus

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Abstract

Isozyme electrophoresis of up to 55 loci, and microcomplement fixation of albumin were used to assess the extent of structural gene divergence among karyotypic forms of Australian Rattus. The results show that the Australian Rattus are monophyletic with respect to R. rattus or R. norvegicus. Within the Australian Rattus, rates of chromosomal evolution have varied enormously, the highest rates being found among members of the R. sordidus group, where extensive chromosomal repatterning has occurred with little or no structural gene divergence.

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References

  • Avise, J. C. & Aquadro, C. F., 1982. A comparative summary of genetic distances in the vertebrates. Patterns and correlations. Evol. Biol. 15: 151–185.

    Google Scholar 

  • Baker, R. J. & Bickham, J. W., 1980. Karyotypic evolution in bats: evidence of extensive and conservative chromosomal evolution in closely related taxa. Syst. Zool. 29: 239–253.

    Google Scholar 

  • Baverstock, P. R., Watts, C. H. S. Hogarth, J. T., Robinson, A. C. & Robinson, J. F., 1977. Chromosome evolution in Australian rodents. II. The Rattus group. Chromosoma 61: 227–241.

    Google Scholar 

  • Baverstock, P. R., Watts, C. H. S., Adams, M. & Gelder, M., 1980. Chromosomal and electrophoretic studies of Australian Melomys (Rodentia: Muridae). Aust. J. Zool., 28: 553–574.

    Google Scholar 

  • Baverstock, P. R., Watts, C. H. S., Adams, M. & Cole, S. R., 1981. Genetical relationships among Australian rodents (Muridae). Aust. J. Zool. 29: 289–303.

    Google Scholar 

  • Baverstock, P. R., Gelder, M. & Jahnke, A., 1983a. Chromosome evolution in Australian Rattus—G-banding and hybrid meiosis. Genetica 60: 93–103.

    Google Scholar 

  • Baverstoek, P. R., Adams, M., Maxson, L. R. & Yosida, T. H., 1983b. Genetic differentiation among karyotypic forms of the black rat, Rattus rattus. Genetics 105: 969–983.

    Google Scholar 

  • Britton-Davidian, J., Bonhomme, F., Croset, H., Capanna, E. & Thaler, L., 1980. Variabilité génétique chez les populations des Souris (genre Mus L.) à nombre chromosomique reduit. C.r. Acad. Sc. Paris, 290: 195–198.

    Google Scholar 

  • Farris, J. S., 1972. Estimating phylogenetic trees from distance matrices. Am. Nat., 106: 645–668.

    Google Scholar 

  • Fox, B. J. & Murray, J. D., 1979. Laboratory hybridization of Australian Rattus fuscipes and Rattus lutreolus and its karyotypic confirmation. Aust. J. Zool., 27: 691–698.

    Google Scholar 

  • Gorman, G. C. & Renzi, J. Jr. 1979. Genetic distance and heterozygosity estimates in electrophoretic studies: effects of sample size. Copeia, 1979: 242–249.

    Google Scholar 

  • Maxson, L. R. & Maxson, R. D., 1979. Comparative albumin and biochemical evolution in plethodontid salamanders. Evolution 33: 1057–1062.

    Google Scholar 

  • Nash, H. R., Brooker, P. C. & Davis, S. J. M., 1983. The Robertsonian translocation house-mouse populations of north east Scotland: a study of their origin and evolution. Heredity 50: 303–310.

    Google Scholar 

  • Nei, M., 1978. Estimation of average heterozygosity and genetic distance from a small number of individuals. Genetics 89: 583–590.

    Google Scholar 

  • Nei, M., Tajima, F. & Tateno, Y., 1983. Accuracy of estimated phylogenetic trees from molecular data. II. Gene frequency data. J. mol. Evol. 19: 153–170.

    Google Scholar 

  • Sage, R. D., 1981. Wild mice. In: The Mouse in Biochemical Research Vol. 1. History, Genetics and Wild Mice. (H. L. Foster, J. D. Small & J. G. Fox, eds). 39–90. Academic Press, New York.

    Google Scholar 

  • Sarich, V. M., 1977. Electrophoresis in evolutionary studies: rates, sample sizes, and the neutrality hypothesis. Nature 265: 24–28.

    Google Scholar 

  • Sneath, P. H. A. & Sokal, R. R., 1973. Numerical taxonomy. W. H. Freeman, San Francisco.

    Google Scholar 

  • Taylor, J. M. & Horner, B. E., 1973. Results of the Archbold expeditions. No. 98. Systematics of native Australian Rattus (Rodentia, Muridae). Bull. Amer. Mus. Nat. Hist., 97: 183–430.

    Google Scholar 

  • Vawter, A. T., Rosenblatt, R. R. & Gorman, G. C., 1980. Genetic divergence among fishes of the eastern Pacific and the Caribbcan: support for the molecular clock. Evolution 34: 705–711.

    Google Scholar 

  • Yosida, T. H., 1980. Cytogenetics of the Black Rat. Karyotype evolution and species differentiation. University of Tokyo Tokyo.

    Google Scholar 

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Baverstock, P.R., Adams, M. & Watts, C.H.S. Biochemical differentiation among karyotypic forms of Australian Rattus . Genetica 71, 11–22 (1986). https://doi.org/10.1007/BF00123228

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  • DOI: https://doi.org/10.1007/BF00123228

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