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. 1998 Aug 22;265(1405):1483–1489. doi: 10.1098/rspb.1998.0461

Rapid parapatric speciation on holey adaptive landscapes.

S Gavrilets 1, H Li 1, M D Vose 1
PMCID: PMC1689320  PMID: 9744103

Abstract

A classical view of speciation is that reproductive isolation arises as a by-product of genetic divergence. Here, individual-based simulations are used to evaluate whether the mechanisms implied by this view may result in rapid speciation if the only source of genetic divergence are mutation and random genetic drift. Distinctive features of the simulations are the consideration of the complete process of speciation (from initiation until completion), and of a large number of loci, which was only one order of magnitude smaller than that of bacteria. It is demonstrated that rapid speciation on the time-scale of hundreds of generations is plausible without the need for extreme founder events, complete geographic isolation, the existence of distinct adaptive peaks or selection for local adaptation. The plausibility of speciation is enhanced by population subdivision. Simultaneous emergence of more than two new species from a subdivided population is highly probable. Numerical examples relevant to the theory of centrifugal speciation and to the conjectures about the fate of 'ring species' and 'sexual continuums' are presented.

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Selected References

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  1. Blattner F. R., Plunkett G., 3rd, Bloch C. A., Perna N. T., Burland V., Riley M., Collado-Vides J., Glasner J. D., Rode C. K., Mayhew G. F. The complete genome sequence of Escherichia coli K-12. Science. 1997 Sep 5;277(5331):1453–1462. doi: 10.1126/science.277.5331.1453. [DOI] [PubMed] [Google Scholar]
  2. Coyne J. A. Genetics and speciation. Nature. 1992 Feb 6;355(6360):511–515. doi: 10.1038/355511a0. [DOI] [PubMed] [Google Scholar]
  3. Coyne J. A., Orr H. A. The evolutionary genetics of speciation. Philos Trans R Soc Lond B Biol Sci. 1998 Feb 28;353(1366):287–305. doi: 10.1098/rstb.1998.0210. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Gavrilets S., Gravner J. Percolation on the fitness hypercube and the evolution of reproductive isolation. J Theor Biol. 1997 Jan 7;184(1):51–64. doi: 10.1006/jtbi.1996.0242. [DOI] [PubMed] [Google Scholar]
  5. Higgs P. G., Derrida B. Genetic distance and species formation in evolving populations. J Mol Evol. 1992 Nov;35(5):454–465. doi: 10.1007/BF00171824. [DOI] [PubMed] [Google Scholar]
  6. Johnson TC, Scholz CA, Talbot MR, Kelts K, Ricketts RD, Ngobi G, Beuning K, Ssemmanda I, I, McGill JW. Late Pleistocene Desiccation of Lake Victoria and Rapid Evolution of Cichlid Fishes. Science. 1996 Aug 23;273(5278):1091–1093. doi: 10.1126/science.273.5278.1091. [DOI] [PubMed] [Google Scholar]
  7. Kimura M, Weiss G H. The Stepping Stone Model of Population Structure and the Decrease of Genetic Correlation with Distance. Genetics. 1964 Apr;49(4):561–576. doi: 10.1093/genetics/49.4.561. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Li W. H. Distribution of nucleotide differences between two randomly chosen cistrons in a subdivided population: the finite island model. Theor Popul Biol. 1976 Dec;10(3):303–308. doi: 10.1016/0040-5809(76)90021-6. [DOI] [PubMed] [Google Scholar]
  9. Nei M., Maruyama T., Wu C. I. Models of evolution of reproductive isolation. Genetics. 1983 Mar;103(3):557–579. doi: 10.1093/genetics/103.3.557. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Orr H. A. The population genetics of speciation: the evolution of hybrid incompatibilities. Genetics. 1995 Apr;139(4):1805–1813. doi: 10.1093/genetics/139.4.1805. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. doi: 10.1098/rspb.1997.0193. [DOI] [PMC free article] [Google Scholar]
  12. doi: 10.1098/rstb.1998.0204. [DOI] [PMC free article] [Google Scholar]
  13. Reidys C., Stadler P. F., Schuster P. Generic properties of combinatory maps: neutral networks of RNA secondary structures. Bull Math Biol. 1997 Mar;59(2):339–397. doi: 10.1007/BF02462007. [DOI] [PubMed] [Google Scholar]
  14. Slatkin M. The average number of sites separating DNA sequences drawn from a subdivided population. Theor Popul Biol. 1987 Aug;32(1):42–49. doi: 10.1016/0040-5809(87)90038-4. [DOI] [PubMed] [Google Scholar]
  15. Strobeck C. Average number of nucleotide differences in a sample from a single subpopulation: a test for population subdivision. Genetics. 1987 Sep;117(1):149–153. doi: 10.1093/genetics/117.1.149. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Wagner A., Wagner G. P., Similion P. Epistasis can facilitate the evolution of reproductive isolation by peak shifts: a two-locus two-allele model. Genetics. 1994 Oct;138(2):533–545. doi: 10.1093/genetics/138.2.533. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Wake D. B. Incipient species formation in salamanders of the Ensatina complex. Proc Natl Acad Sci U S A. 1997 Jul 22;94(15):7761–7767. doi: 10.1073/pnas.94.15.7761. [DOI] [PMC free article] [PubMed] [Google Scholar]
  18. Watterson G. A. On the number of segregating sites in genetical models without recombination. Theor Popul Biol. 1975 Apr;7(2):256–276. doi: 10.1016/0040-5809(75)90020-9. [DOI] [PubMed] [Google Scholar]

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