Expanding the RNase world

Plants have developed a variety of molecular ways to express self-incompatibility (SI) that promote outcrossing by preventing self-fertilization. A new study reveals that Citrus uses the S-RNase as the key molecule for expressing SI, giving us further evidence that the S-RNase system is widespread and evolved in an early branch of angiosperms.

Access options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Fig. 1: The non-self-recognition SI system in citrus.

Chris Dennis / Alamy Stock Photo


  1. 1.

    Fujii, S., Kubo, K. & Takayama, S. Nat. Plants 2, 16130 (2016).

    CAS  Article  Google Scholar 

  2. 2.

    Goldberg, E. E. et al. Science 330, 493–495 (2010).

    CAS  Article  Google Scholar 

  3. 3.

    Kubo, K. et al. Science 330, 796–799 (2010).

    CAS  Article  Google Scholar 

  4. 4.

    Liang, M. et al. Nat. Plants (2020).

  5. 5.

    Liang, M. et al. Mol. Genet. Genomics 292, 325–341 (2017).

    CAS  Article  Google Scholar 

  6. 6.

    Chen, L. Y. et al. Nat. Genet. 51, 1549–1558 (2019).

    CAS  Article  Google Scholar 

  7. 7.

    Matsumoto, D. & Tao, R. Plant Mol. Biol. 100, 367–378 (2019).

    CAS  Article  Google Scholar 

Download references

Author information



Corresponding authors

Correspondence to Sota Fujii or Seiji Takayama.

Ethics declarations

Competing interests

The authors declare no competing interests.

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Fujii, S., Takayama, S. Expanding the RNase world. Nat. Plants 6, 53–54 (2020).

Download citation


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