論文

査読有り
2019年5月

Evidence of the functional role of the ethylene receptor genes SlETR4 and SlETR5 in ethylene signal transduction in tomato

Molecular genetics and genomics : MGG
  • Mubarok, Syariful
  • ,
  • Hoshikawa, Ken
  • ,
  • Okabe, Yoshihiro
  • ,
  • Yano, Ryoichi
  • ,
  • Tri, Matthew Duc
  • ,
  • Ariizumi, Tohru
  • ,
  • Ezura, Hiroshi

294
2
開始ページ
301
終了ページ
313
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s00438-018-1505-7
出版者・発行元
SPRINGER HEIDELBERG

Ethylene receptors are key factors for ethylene signal transduction. In tomato, six ethylene receptor genes (SlETR1-SlETR6) have been identified. Mutations in different ethylene receptor genes result in different phenotypes that are useful for elucidating the roles of each gene. In this study, we screened mutants of two ethylene receptor genes, SLETR4 and SLETR5, from a Micro-Tom mutant library generated by TILLING. We identified two ethylene receptor mutants with altered phenotypes and named them Sletr4-1 and Sletr5-1. Sletr4-1 has a mutation between the transmembrane and GAF domains, while Sletr5-1 has a mutation within the GAF domain. Sletr4-1 showed increased hypocotyl and root lengths, compared to those of wild type plants, under ethylene exposure. Moreover, the fruit shelf life of this mutant was extended, titratable acidity was increased and total soluble solids were decreased, suggesting a reduced ethylene sensitivity. In contrast, in the absence of exogenous ethylene, the hypocotyl and root lengths of Sletr5-1 were shorter than those of the wild type, and the fruit shelf life was shorter, suggesting that these mutants have increased ethylene sensitivity. Gene expression an

リンク情報
DOI
https://doi.org/10.1007/s00438-018-1505-7

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