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.

  • News & Views
  • Published:


An SI-independent regulator

The stigma has tightly regulated recognition mechanisms at several levels to prevent unwanted pollen from achieving fertilization. Knowledge about barriers controlling interspecific incompatibility is scarce. New evidence reveals a novel gene involved in regulating interspecies incompatibility in self-compatible Arabidopsis thaliana.

This is a preview of subscription content, access via your institution

Access options

Buy this article

Prices may be subject to local taxes which are calculated during checkout

Fig. 1: SPRI1 controls interspecific incompatibility.


  1. Dresselhaus, T. & Franklin-Tong, V. E. Mol. Plant 6, 1018–1036 (2013).

    Article  CAS  Google Scholar 

  2. Lewis, D. & Crowe, L. K. Heredity 12, 233–256 (1958).

    Article  Google Scholar 

  3. Li, W. & Chetalat, R. Science 330, 1827–1830 (2010).

    Article  CAS  Google Scholar 

  4. Alejandro Tovar‐Méndez, A. et al. Plant J. 77, 727–736 (2014).

    Article  Google Scholar 

  5. Fujii, S. et al. Nat. Plants (2019).

  6. Charrin, S., Jouannet, S., Boucheix, C. & Rubinstein, E. J. Cell Sci. 127, 3641–3648 (2014).

    Article  CAS  Google Scholar 

  7. Boavida, L. C., Qin, P., Broz, M., Becker, J. D. & McCormick, S. Plant Physiol. 163, 696–712 (2013).

    Article  CAS  Google Scholar 

  8. Wheeler, M. J. et al. Nature 459, 992–995 (2009).

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations


Corresponding author

Correspondence to Noni Franklin-Tong.

Ethics declarations

Competing interests

The author declares no competing interests.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Franklin-Tong, N. An SI-independent regulator. Nat. Plants 5, 650–651 (2019).

Download citation

  • Published:

  • Issue Date:

  • DOI:


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