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<p>Strawberry (<i>Fragaria</i> × <i>ananassa</i>) possesses a shallow root system that is particularly susceptible to both drought and flooding stresses. The large leaf surface area and elevated transpiration rate enhance its susceptibility to water deficiency, ultimately impacting fruit yield and quality. C2H2-type zinc finger protein transcription factors (C2H2-ZFPs) represent a crucial gene family in plants and are extensively involved in responses to various abiotic stresses, including drought. To clarify the profile of strawberry C2H2-ZFPs and their role in response to abiotic stresses, 66 strawberry C2H2-ZFPs, which can be divided into four subfamilies, were identified via the strawberry genome database. Transcriptome and qRT‒PCR analyses revealed that the expression of <i>FvZFP57</i> were significantly up-regulated under drought and flooding stress conditions. This gene mainly involve in the roots, mature leaves and during early stages of fruit development, was significantly upregulated under both drought and flooding stress conditions. Overexpression of <i>FvZFP57</i> in <i>Arabidopsis thaliana</i> upregulated the drought stress response gene <i>DREB26/ERF12</i> and also promotes root development, thereby strengthening the plant’s drought tolerance.</p>

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The Strawberry C2H2 Zinc Finger Protein FvZFP57 Positively Regulates Drought Stress

  • 期刊论文

  • 发表日期：

    2026年1月21日

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  • Shou-bing Chen,
  • Zhi-kai Song,
  • Jian Guo,
  • Ming-di Yang,
  • Shuai-jie Li,
  • Ming-li Zhu,
  • Junxiang Yu,
  • Meng Xu,
  • Yi-hua Liu

摘要

Strawberry (Fragaria × ananassa) possesses a shallow root system that is particularly susceptible to both drought and flooding stresses. The large leaf surface area and elevated transpiration rate enhance its susceptibility to water deficiency, ultimately impacting fruit yield and quality. C2H2-type zinc finger protein transcription factors (C2H2-ZFPs) represent a crucial gene family in plants and are extensively involved in responses to various abiotic stresses, including drought. To clarify the profile of strawberry C2H2-ZFPs and their role in response to abiotic stresses, 66 strawberry C2H2-ZFPs, which can be divided into four subfamilies, were identified via the strawberry genome database. Transcriptome and qRT‒PCR analyses revealed that the expression of FvZFP57 were significantly up-regulated under drought and flooding stress conditions. This gene mainly involve in the roots, mature leaves and during early stages of fruit development, was significantly upregulated under both drought and flooding stress conditions. Overexpression of FvZFP57 in Arabidopsis thaliana upregulated the drought stress response gene DREB26/ERF12 and also promotes root development, thereby strengthening the plant’s drought tolerance.