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Genomic health in an asexual fish

The genome of the Amazon molly (Poecilia formosa), a parthenogenetic fish species, shows little genetic decay and a high degree of diversity. The genetic health of this asexual vertebrate is surprising given the accumulation of genomic damage that is expected to follow from asexual reproduction.

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Fig. 1: The Amazon molly (P. formosa) is an asexual fish with remarkable good genomic health.


  1. 1.

    Lehtonen, J., Jennions, M. D. & Kokko, H. Trends Ecol. Evol. 27, 172–178 (2012).

    Article  Google Scholar 

  2. 2.

    Barton, N. & Charlesworth, B. Science 281, 1986–1990 (1998).

    CAS  Article  Google Scholar 

  3. 3.

    West, S. A., Liveley, C. M. & Read, A. F. J. Evol. Biol. 12, 1003–1012 (1999).

    Article  Google Scholar 

  4. 4.

    Warren, W. C. et al. Nat. Ecol. Evol. (2018).

  5. 5.

    Liveley, C. M. J. Hered. 101, S13–20 (2010).

    Article  Google Scholar 

  6. 6.

    Redfield, R. J. Nature 369, 145–147 (1994).

    CAS  Article  Google Scholar 

  7. 7.

    Wilson Sayres, M. A. & Makova, K. D. Bioessays 33, 938–945 (2011).

    Article  Google Scholar 

  8. 8.

    Ellegren, H. & Fridolfsson, A.-K. J. Mol. Evol. 56, 458–463 (2003).

    CAS  Article  Google Scholar 

Download references

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Correspondence to Pedram Samani or Max Reuter.

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Samani, P., Reuter, M. Genomic health in an asexual fish. Nat Ecol Evol 2, 595–596 (2018).

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