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<p>Abiotic stresses such as salinity, drought, and chilling negatively affect plant growth, development and yield. To adapt to the stresses, plants have evolved multiple defense mechanisms. Small ubiquitin-like modifier (SUMO), an ubiquitin-like protein modifier, plays an important role in regulating plant response to abiotic stresses. Sugar beet has strong stress tolerance and is a good material for mining stress-tolerant genes. Through genome-wide analysis, 28 members of the sugar beet SUMO system were identified. The members were classified, and their structures and evolutionary relationships were analyzed. Through the transcriptional analysis of the gene expression patterns under five abiotic stresses including salt (200&#xa0;mM NaCl), alkali (pH = 9.2), drought (20% PEG 6000), heat (40&#xa0;°C) and chilling (4&#xa0;°C), the potential functions of the sugar beet SUMO system may be inferred. This study has laid a foundation for further functional studies of the SUMO system and improving crop stress tolerance using the sugar beet resource.</p>

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Analysis of Sugar Beet SUMO System Members and their Responses to Abiotic Stresses

  • 期刊论文

  • 发表日期：

    2025年5月16日

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  • Jiajia Zhang,
  • Jiaxin Fu,
  • Chunquan Ma,
  • Bing Yu,
  • Sixue Chen,
  • Haiying Li

摘要

Abiotic stresses such as salinity, drought, and chilling negatively affect plant growth, development and yield. To adapt to the stresses, plants have evolved multiple defense mechanisms. Small ubiquitin-like modifier (SUMO), an ubiquitin-like protein modifier, plays an important role in regulating plant response to abiotic stresses. Sugar beet has strong stress tolerance and is a good material for mining stress-tolerant genes. Through genome-wide analysis, 28 members of the sugar beet SUMO system were identified. The members were classified, and their structures and evolutionary relationships were analyzed. Through the transcriptional analysis of the gene expression patterns under five abiotic stresses including salt (200 mM NaCl), alkali (pH = 9.2), drought (20% PEG 6000), heat (40 °C) and chilling (4 °C), the potential functions of the sugar beet SUMO system may be inferred. This study has laid a foundation for further functional studies of the SUMO system and improving crop stress tolerance using the sugar beet resource.