Skip to main content

Thank you for visiting You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

Evolutionary genetics

Who shouldn't be your daddy

Unusual reproductive incompatibility has been discovered between two strains of a nematode worm. This finding indicates that natural selection can generate long-term divergence within self-fertilizing populations.

This is a preview of subscription content

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Figure 1: Worms like to keep it in the family.


  1. 1

    Seidel, H. S., Rockman, M. V. & Kruglyak, L. Science doi:10.1126/science.1151107 (2008). | Article |

  2. 2

    Phillips, P. C. Trends Genet. 22, 405–407 (2006).

    CAS  Article  Google Scholar 

  3. 3

    Lyttle, T. W. Annu. Rev. Genet. 25, 511–557 (1991).

    CAS  Article  Google Scholar 

  4. 4

    Barrière, A. & Félix, M.-A. Curr. Biol. 15, 1176–1184 (2005).

    Article  Google Scholar 

  5. 5

    Sivasundar, A. & Hey, J. Curr. Biol. 15, 1598–1602 (2005).

    CAS  Article  Google Scholar 

Download references

Author information



Rights and permissions

Reprints and Permissions

About this article

Cite this article

Phillips, P. Who shouldn't be your daddy. Nature 451, 640–641 (2008).

Download citation


Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing