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Key message <p>Maize YSL gene <i>ZmYSL14</i> enhances salt tolerance in maize. Our findings demonstrate that <i>ZmPRR37</i>-<i>ZmYSL14</i> module promotes salt stress tolerance in maize.</p> Abstract <p>Environmental challenges, particularly soil salinity, have severely impacted maize production worldwide. Yellow Stripe-Like (YSL) is a subfamily of oligopeptide transporter, and there is limited reporting on its role in salt stress response. In this study, we screened an Ac/Ds mutant library and identified a salt-sensitive line, K17-16H876. Further characterization revealed that the Ds element was inserted into the coding region of Zm00001d054041 (<i>ZmYSL14</i>), which encodes a YSL protein. The <i>zmysl14</i> mutant exhibited increased salt sensitivity, while <i>ZmYSL14</i> overexpression lines displayed enhanced salt tolerance. Yeast one-hybrid screening identified a PRR transcription factor, ZmPRR37, which has previously been reported to enhance salt stress tolerance in maize. Dual-luciferase assays and RT-qPCR analysis indicated that <i>ZmPRR37</i> promotes the expression of <i>ZmYSL14</i>. Our findings suggest the <i>ZmPRR37</i>-<i>ZmYSL14</i> module enhances salt tolerance in maize. This research enriches the functional understanding of YSL family genes and provides valuable genetic resources for breeding new salt-tolerant maize varieties.</p>

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ZmPRR37-ZmYSL14 module enhances salt stress tolerance in maize

  • 期刊论文

  • 发表日期：

    2025年6月14日

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  • Zhixue Liu,
  • Wanjun Zhang,
  • Jing Zhang,
  • Qi Cheng,
  • Jiachen Liang,
  • Chongyu Sun,
  • Jifei Ren,
  • Shifang Zhao,
  • Fan Wu,
  • Jia Shi,
  • Huihui Su,
  • Yanhui Chen,
  • Zhenzhen Ren,
  • Liuji Wu,
  • Lixia Ku

摘要

Key message

Maize YSL gene ZmYSL14 enhances salt tolerance in maize. Our findings demonstrate that ZmPRR37-ZmYSL14 module promotes salt stress tolerance in maize.

Abstract

Environmental challenges, particularly soil salinity, have severely impacted maize production worldwide. Yellow Stripe-Like (YSL) is a subfamily of oligopeptide transporter, and there is limited reporting on its role in salt stress response. In this study, we screened an Ac/Ds mutant library and identified a salt-sensitive line, K17-16H876. Further characterization revealed that the Ds element was inserted into the coding region of Zm00001d054041 (ZmYSL14), which encodes a YSL protein. The zmysl14 mutant exhibited increased salt sensitivity, while ZmYSL14 overexpression lines displayed enhanced salt tolerance. Yeast one-hybrid screening identified a PRR transcription factor, ZmPRR37, which has previously been reported to enhance salt stress tolerance in maize. Dual-luciferase assays and RT-qPCR analysis indicated that ZmPRR37 promotes the expression of ZmYSL14. Our findings suggest the ZmPRR37-ZmYSL14 module enhances salt tolerance in maize. This research enriches the functional understanding of YSL family genes and provides valuable genetic resources for breeding new salt-tolerant maize varieties.