Abstract
SPECIATION theory is still largely descriptive. How many and what kind of genes are implicated in speciation is a central unresolved problem of evolutionary biology1,2. Does speciation require major genomic changes3–5 or may minor ones suffice1,6–9? Similarly, does speciation depend on structural or on regulatory genes10? We have investigated these questions with reference to the actively speciating fossorial mole rats of the Spalax ehrenbergi complex in Israel, which comprises four morphologically indistinguishable chromosome forms (2n = 52, 54, 58, 60)11 adapted in that order to increasing aridity12. Narrow hybrid zones between karyotypes13 and mate selection14 (through olfaction15, vocalisation16 and aggression17) suggest that the recently18 formed species represent progressive stages of final speciation13. Genic diversity proved low, and genic similarity between karyotypes very high, in the previous test based on 17 gene loci of tissue proteins8. The test of eight additional loci of blood proteins, which is reported here, reinforces earlier conclusions and sheds light on the allozyme–environment association and on the amount of genetic differentiation during speciation.
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References
Lewontin, R. C. The Genetic Basis of Evolutionary Change (Columbia University Press, New York, 1974).
Bush, G. L. in A. Rev. Ecol. Systemat. 6, 339–364 (1975).
Dobzhansky, T. Genetics of the Evolutionary Process (Columbia University Press, New York, 1971).
Mayr, E. Populations, Species and Evolution (Harvard University Press, Cambridge 1970).
Avise, F. C. in Molecular Evolution (ed. Ayala, F. J.) 106–122 (Sinauer Associates, 1976).
Hubby, J. L. & Throckmorton, L. H. Genetics 52, 203–215 (1965).
Hubby, J. L. & Throckmorton, L. H. Am. Nat. 102, 193–205 (1968).
Nevo, E. & Shaw, R. C. Biochem. Genet. 7, 235–241 (1972).
Nevo, E., Kim, Y. J., Shaw, R. C. & Thaeler, C. S. Jr Evolution 28, 1–23 (1974).
Wilson, A. C., Sarich, V. M. & Maxson, L. R. Proc. natn. Acad. Sci. U.S.A. 71, 3028–3030 (1974).
Wahrman, J., Goitein, R. & Nevo, E. Science 164, 82–84 (1969).
Nevo, E. & Shkolnik, A. Experientia 30, 724–726 (1974).
Nevo, E. & Bar-El, H. Evolution 30, 831–840 (1976).
Nevo, E. & Heth, G. Experientia 32, 1509–1510 (1976).
Nevo, E., Bodmer, M. & Heth, G. Experientia 32, 1511–1512 (1976).
Capranica, R. R., Moffat, A. J. & Nevo, E. J. acoust. Soc. Am. (October 1973).
Nevo, E., Naftali, G. & Guttman, R. Proc. natn. Acad. Sci. U.S.A. 72, 3250–3254 (1975).
Nevo, E. & Sarich, V. Israel J. Zool. 23, 210–211 (1974).
Nei, M. Am. Nat. 106, 283–291 (1972).
Nevo, E. Theor. Pop. Biol. 13, 121–177 (1978).
Patton, J. L. & Yang, S. Y. Evolution 31, 697–720 (1977).
Soule, M. in Molecular Evolution (ed. Ayala, F. J.) 60–77 (Sinauer, Stamford, Connecticutt, 1976).
Nei, M. Am. Nat. 105, 385–398 (1971).
Tchernov, E. Succession of Rodent Faunas during the Upper Pleistocene of Israel (Parey, Hamburg, 1968).
Ayala, F. J. in Evolutionary Biology (eds. Dobzhansky, T., Hecht, M. K. & Steere, W. C.) 8, 1–78 (Plenum, New York, 1975).
Dobzhansky, T. Science 177, 664–669 (1972).
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NEVO, E., CLEVE, H. Genetic differentiation during speciation. Nature 275, 125–126 (1978). https://doi.org/10.1038/275125a0
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DOI: https://doi.org/10.1038/275125a0
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