論文

査読有り 国際誌
2019年7月

A stigmatic gene confers interspecies incompatibility in the Brassicaceae.

Nature plants
  • Sota Fujii
  • Takashi Tsuchimatsu
  • Yuka Kimura
  • Shota Ishida
  • Surachat Tangpranomkorn
  • Hiroko Shimosato-Asano
  • Megumi Iwano
  • Shoko Furukawa
  • Wakana Itoyama
  • Yuko Wada
  • Kentaro K Shimizu
  • Seiji Takayama
  • 全て表示

5
7
開始ページ
731
終了ページ
741
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/s41477-019-0444-6

Pre-zygotic interspecies incompatibility in angiosperms is a male-female relationship that inhibits the formation of hybrids between two species. Here, we report on the identification of STIGMATIC PRIVACY 1 (SPRI1), an interspecies barrier gene in Arabidopsis thaliana. We show that the rejection activity of this stigma-specific plasma membrane protein is effective against distantly related Brassicaceae pollen tubes and is independent of self-incompatibility. Point-mutation experiments and functional tests of synthesized hypothetical ancestral forms of SPRI1 suggest evolutionary decay of SPRI1-controlled interspecies incompatibility in self-compatible A. thaliana. Hetero-pollination experiments indicate that SPRI1 ensures intraspecific fertilization in the pistil when pollen from other species are present. Our study supports the idea that SPRI1 functions as a barrier mechanism that permits entrance of pollen with an intrinsic signal from self species.

リンク情報
DOI
https://doi.org/10.1038/s41477-019-0444-6
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/31263241
ID情報
  • DOI : 10.1038/s41477-019-0444-6
  • PubMed ID : 31263241

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