Back انعزال تكاثري Arabic Репродуктивна изолация Bulgarian Aïllament reproductiu Catalan Reprodukční bariéra Czech Isolationsmechanismen German Mecanismos de aislamiento reproductivo Spanish Isolatsioon (bioloogia) Estonian جدایی تولیدمثلی Persian Isolaatiomekanismi Finnish Isolement reproductif French

Reproductive isolation

The mechanisms of reproductive isolation are a collection of evolutionary mechanisms, behaviors and physiological processes critical for speciation. They prevent members of different species from producing offspring, or ensure that any offspring are sterile. These barriers maintain the integrity of a species by reducing gene flow between related species.[1][2][3][4]

The mechanisms of reproductive isolation have been classified in a number of ways. Zoologist Ernst Mayr classified the mechanisms of reproductive isolation in two broad categories: pre-zygotic for those that act before fertilization (or before mating in the case of animals) and post-zygotic for those that act after it.[5] The mechanisms are genetically controlled and can appear in species whose geographic distributions overlap (sympatric speciation) or are separate (allopatric speciation).

  1. ^ Baker, H G (1959). "Reproductive methods as factors in speciation in flowering plants". Cold Spring Harb Symp Quant Biol. 24: 177–191. doi:10.1101/sqb.1959.024.01.019. PMID 13796002.
  2. ^ Barton N.; Bengtsson B. O. (1986), "The barrier to genetic exchange between hybridising populations", Heredity, 57 (3): 357–376, doi:10.1038/hdy.1986.135, PMID 3804765.
  3. ^ Strickberger, M. 1978. Genética. Omega, Barcelona, España, p.: 874-879. ISBN 84-282-0369-5.
  4. ^ Futuyma, D. 1998. Evolutionary biology (3ª edición). Sinauer, Sunderland.
  5. ^ Mayr, E. 1963. Animal species and evolution. Harvard University Press, Cambridge.

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