論文

査読有り 国際誌
2020年5月

Reprogramming of the Developmental Program of Rhus javanica During Initial Stage of Gall Induction by Schlechtendalia chinensis.

Frontiers in plant science
  • Tomoko Hirano
  • ,
  • Seisuke Kimura
  • ,
  • Tomoaki Sakamoto
  • ,
  • Ayaka Okamoto
  • ,
  • Takumi Nakayama
  • ,
  • Takakazu Matsuura
  • ,
  • Yoko Ikeda
  • ,
  • Seiji Takeda
  • ,
  • Yoshihito Suzuki
  • ,
  • Issei Ohshima
  • ,
  • Masa H Sato

11
開始ページ
471
終了ページ
471
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.3389/fpls.2020.00471

Insect galls are unique organs that provide shelter and nutrients to the gall-inducing insects. Although insect galls are fascinating structures for their unique shapes and functions, the process by which gall-inducing insects induce such complex structures is not well understood. Here, we performed RNA-sequencing-based comparative transcriptomic analysis of the early developmental stage of horned gall to elucidate the early gall-inducing process carried out by the aphid, Schlechtendalia chinensis, in the Chinese sumac, Rhus javanica. There was no clear similarity in the global gene expression profiles between the gall tissue and other tissues, and the expression profiles of various biological categories such as phytohormone metabolism and signaling, stress-response pathways, secondary metabolic pathways, photosynthetic reaction, and floral organ development were dramatically altered. Particularly, master transcription factors that regulate meristem, flower, and fruit development, and biotic and abiotic stress-responsive genes were highly upregulated, whereas the expression of genes related to photosynthesis strongly decreased in the early stage of the gall development. In addition, we found that the expression of class-1 KNOX genes, whose ectopic overexpression is known to lead to the formation of de novo meristematic structures in leaf, was increased in the early development stage of gall tissue. These results strengthen the hypothesis that gall-inducing insects convert source tissues into fruit-like sink tissues by regulating the gene expression of host plants and demonstrate that such manipulation begins from the initial process of gall induction.

リンク情報
DOI
https://doi.org/10.3389/fpls.2020.00471
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32499792
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7243852

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