1932

Abstract

Since Darwin first proposed that new species could arise without geographic separation, biologists have debated whether or not divergence occurs in the presence of gene exchange. Today we understand that new species can diverge while exchanging genes, depending on the strength of disruptive natural selection and the factors that affect the linkage relationships of genes under disruptive selection. This mode of diversification—divergence with gene flow—includes sympatric speciation, in which gene exchange occurs since onset of divergence, and secondary contact following a period of geographic isolation, as well as all sorts of situations in which gene flow happens intermittently. In recent years, statistical tools have been developed that can reveal the action of gene flow during divergence. Isolation-with-migration (IM) models include parameters for population size, time of population separation, and gene exchange, and they have been used extensively to estimate levels of gene exchange. A survey of studies that have used these models shows that a plurality find little evidence of gene flow; however, many report nonzero gene exchange.

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2010-12-01
2024-10-06
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Literature Cited

  1. Bateson W. 1909. Heredity and variation in modern lights. Darwin and Modern Science AC Seward 85–101 Cambridge, UK: Cambridge Univ. Press [Google Scholar]
  2. Becquet C, Przeworski M. 2007. A new approach to estimate parameters of speciation models with application to apes. Genome Res. 17:1505–19 [Google Scholar]
  3. Becquet C, Przeworski M. 2009. Learning about modes of speciation by computational approaches. Evolution 63:2547–62 [Google Scholar]
  4. Bolnick DI, Fitzpatrick BM. 2007. Sympatric speciation: models and empirical evidence. Annu. Rev. Ecol. Evol. Syst. 38:459–87 [Google Scholar]
  5. Bush G. 1994. Sympatric speciation in animals: new wine in old bottles. Trends Ecol. Evol. 9:285–88 [Google Scholar]
  6. Butlin RK. 2005. Recombination and speciation. Mol. Ecol. 14:2621–35 [Google Scholar]
  7. Carneiro M, Ferrand N, Nachman MW. 2009. Recombination and speciation: loci near centromeres are more differentiated than loci near telomeres between subspecies of the European rabbit (Oryctolagus cuniculus). Genetics 181:593–606 [Google Scholar]
  8. Coyne JA, Orr HA. 2004. Speciation Sunderland, MA: Sinauer Assoc. [Google Scholar]
  9. Dobzhansky T. 1937. Genetics and the Origin of Species New York: Columbia Univ. Press [Google Scholar]
  10. Fagundes NJ, Ray N, Beaumont M, Neuenschwander S, Salzano FM. et al. 2007. Statistical evaluation of alternative models of human evolution. Proc. Natl. Acad. Sci. USA 104:17614–19 [Google Scholar]
  11. Feder J, Roethele J, Filchak K, Niedbalski J, Romero-Severson J. 2003. Evidence for inversion polymorphism related to sympatric host race formation in the apple maggot fly, Rhagoletis pomonella. Genetics 163:939–53 [Google Scholar]
  12. Felsenstein J. 1981. Skepticism towards Santa Rosalia, or why are there so few kinds of animals. Evolution 35:124–38 [Google Scholar]
  13. Felsenstein J. 1988. Phylogenies from molecular sequences: inference and reliability. Annu. Rev. Genet. 22:521–65 [Google Scholar]
  14. Fisher RA. 1922. On the mathematical foundations of theoretical statistics. Philos. Trans. R. Soc. Lond. Ser. A 222:309–68 [Google Scholar]
  15. Fisher RA. 1925. Theory of statistical estimation. Proc. Camb. Philos. Soc. 22:700–25 [Google Scholar]
  16. Gavrilets S. 2003. Perspective: models of speciation: what have we learned in 40years?. Evolution 57:2197–215 [Google Scholar]
  17. Geraldes A, Ferrand N, Nachman MW. 2006. Contrasting patterns of introgression at X-linked loci across the hybrid zone between subspecies of the European rabbit (Oryctolagus cuniculus). Genetics 173:919–33 [Google Scholar]
  18. Gould SJ. 2002. The Structure of Evolutionary Theory Cambridge, MA: Belknap Press of Harvard Univ. Press [Google Scholar]
  19. Griffiths RC. 1989. Genealogical-tree probabilities in the infinitely-many-site model. J. Math. Biol. 27:667–80 [Google Scholar]
  20. Hasegawa M, Kishino H, Yano T. 1985. Dating of the human-ape splitting by a molecular clock of mitochondrial DNA. J. Mol. Evol. 22:160–74 [Google Scholar]
  21. Hey J. 2005. On the number of new world founders: a population genetic portrait of the peopling of the Americas. PLoS Biol. 3:0965–75 [Google Scholar]
  22. Hey J. 2010. Isolation with migration models for more than two populations. Mol. Biol. Evol. 27:905–20 [Google Scholar]
  23. Hey J, Nielsen R. 2004. Multilocus methods for estimating population sizes, migration rates and divergence time, with applications to the divergence of Drosophila pseudoobscura and D. persimilis. Genetics 167:747–60 [Google Scholar]
  24. Hey J, Nielsen R. 2007. Integration within the Felsenstein equation for improved Markov chain Monte Carlo methods in population genetics. Proc. Natl. Acad. Sci. USA 104:2785–90 [Google Scholar]
  25. Kimura M. 1969. The number of heterozygous nucleotide sites maintained in a finite population due to steady flux of mutations. Genetics 61:893–903 [Google Scholar]
  26. Kirkpatrick M, Ravigné V. 2002. Speciation by natural and sexual selection: models and experiments. Am. Nat. 159:S22–35 [Google Scholar]
  27. Kocher TD. 2004. Adaptive evolution and explosive speciation: the cichlid fish model. Nat. Rev. Genet. 5:288–98 [Google Scholar]
  28. Lopes JS, Balding D, Beaumont MA. 2009. PopABC: a program to infer historical demographic parameters. Bioinformatics 25:2747–49 [Google Scholar]
  29. Machado CA, Kliman RM, Markert JM, Hey J. 2002. Inferring the history of speciation from multilocus DNA sequence data: the case of Drosophila pseudoobscura and its close relatives. Mol. Biol. Evol. 19:472–88 [Google Scholar]
  30. Muller HJ. 1940. Bearings of the Drosophila work on systematics. The New Systematics J Huxley 185–268 Oxford, UK: Clarendon Press [Google Scholar]
  31. Navarro A, Barton NH. 2003. Accumulating postzygotic isolation genes in parapatry: a new twist on chromosomal speciation. Evolution 57:447–59 [Google Scholar]
  32. Nielsen R, Wakeley J. 2001. Distinguishing migration from isolation. A Markov chain Monte Carlo approach. Genetics 158:885–96 [Google Scholar]
  33. Noor MA, Grams KL, Bertucci A, Almendarez Y, Reiland JA, Smith KR. 2001a. The genetics of reproductive isolation and the potential for gene exchange between Drosophila pseudoobscura and D. persimilis via backcross hybrid males. Evolution 55:512–21 [Google Scholar]
  34. Noor MA, Grams KL, Bertucci LA, Reiland J. 2001b. Chromosomal inversions and the reproductive isolation of species. Proc. Natl. Acad. Sci. USA 98:12084–88 [Google Scholar]
  35. Ohta T, Kimura M. 1973. A model of mutation appropriate to estimate the number of electrophoretically detectable alleles in a finite population. Genet. Res. Camb. 22:201–4 [Google Scholar]
  36. Orr HA. 1991. Is single-gene speciation possible?. Evolution 45:764–69 [Google Scholar]
  37. Orr HA. 1996. Dobzhansky, Bateson, and the genetics of speciation. Genetics 144:1331–35 [Google Scholar]
  38. Rice WR, Hostert EF. 1993. Laboratory experiments on speciation: what have we learned in 40years. Evolution 47:1637–53 [Google Scholar]
  39. Rieseberg LH. 2001. Chromosomal rearrangements and speciation. Trends Ecol. Evol. 16:351–58 [Google Scholar]
  40. Rieseberg LH, Whitton J, Gardner K. 1999. Hybrid zones and the genetic architecture of a barrier to gene flow between two sunflower species. Genetics 152:713–27 [Google Scholar]
  41. Salzburger W, Meyer A. 2004. The species flocks of East African cichlid fishes: recent advances in molecular phylogenetics and population genetics. Naturwissenschaften 91:227–90 [Google Scholar]
  42. Slotman MA, Reimer LJ, Thiemann T, Dolo G, Fondjo E, Lanzaro GC. 2006. Reduced recombination rate and genetic differentiation between the M and S forms of Anopheles gambiae s.s. Genetics 174:2081–93 [Google Scholar]
  43. Strasburg JL, Rieseberg LH. 2010. How robust are “isolation with migration” analyses to violations of the IM model? A simulation study. Mol. Biol. Evol. 27:297–310 [Google Scholar]
  44. Stump AD, Fitzpatrick MC, Lobo NF, Traoré S, Sagnon N. et al. 2005. Centromere-proximal differentiation and speciation in Anopheles gambiae. Proc. Natl. Acad. Sci. USA 102:15930–35 [Google Scholar]
  45. Tammone W. 1995. Competition, the division of labor, and Darwin's principle of divergence. J. Hist. Biol. 28:109–31 [Google Scholar]
  46. Trickett AJ, Butlin RK. 1994. Recombination suppressors and the evolution of new species. Heredity 73:339–45 [Google Scholar]
  47. Turner TL, Hahn MW. 2007. Locus- and population-specific selection and differentiation between incipient species of Anopheles gambiae. Mol. Biol. Evol. 24:2132–38 [Google Scholar]
  48. Turner TL, Hahn MW, Nuzhdin SV. 2005. Genomic islands of speciation in Anopheles gambiae. PLoS Biol. 3:e285 [Google Scholar]
  49. Via S. 2001. Sympatric speciation in animals: the ugly duckling grows up. Trends Ecol. Evol. 16:381–90 [Google Scholar]
  50. Wagner M. 1873. The Darwinian Theory and the Law of the Migration of Organisms. Transl. JL Laird London: E. Stanford (From German) [Google Scholar]
  51. Wakeley J, Hey J. 1997. Estimating ancestral population parameters. Genetics 145:847–55 [Google Scholar]
  52. Wang RL, Wakeley J, Hey J. 1997. Gene flow and natural selection in the origin of Drosophila pseudoobscura and close relatives. Genetics 147:1091–106 [Google Scholar]
  53. Wilson IJ, Balding DJ. 1998. Genealogical inference from microsatellite data. Genetics 150:499–510 [Google Scholar]
  54. Won YJ, Sivasundar A, Wang Y, Hey J. 2005. On the origin of Lake Malawi cichlid species: a population genetic analysis of divergence. Proc. Natl. Acad. Sci. USA 102:6581–86 [Google Scholar]
  55. Wright S. 1931. Evolution in Mendelian populations. Genetics 16:97–159 [Google Scholar]
  56. Wright S. 1951. The genetical structure of populations. Ann. Eugen. 15:323–54 [Google Scholar]
  57. Wu CI. 2001. The genic view of the process of speciation. J. Evol. Biol. 14:851–65 [Google Scholar]
  58. Yatabe Y, Kane NC, Scotti-Saintagne C, Rieseberg LH. 2007. Rampant gene exchange across a strong reproductive barrier between the annual sunflowers, Helianthus annuus and H. petiolaris. Genetics 175:1883–93 [Google Scholar]
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