Gene flow

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In evolutionary biology, gene flow describes the exchange of genetic material between two populations of a species or within a population. In anatomically modern humans ( Homo sapiens ), gene flow from archaic humans to Homo sapiens has also been proven, u. a. between Neanderthals and Homo sapiens and between Denisovans and Homo sapiens , since these species had not yet moved too far genetically.

If the gene flow is prevented, e.g. B. by geographical isolation , the populations develop differently. There may be a allopatric speciation come.

See also


  • Wilhelm Seyffert (Ed.): Textbook of Genetics . 2nd edition, Spektrum Akademischer Verlag, Heidelberg, Berlin, 2003, p. 496 ff., ISBN 3-8274-1022-3

Individual evidence

  1. Ewen Callaway: Early European may have had Neanderthal great-great-grandparent. On: from May 13, 2015, doi : 10.1038 / nature.2015.17534
  2. Early Europeans mixed with Neanderthals. On: from June 22, 2015, with a picture of the lower jaw Oase 1