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<p>Proteins classified within the Domain of Unknown Function (DUF) play a crucial role in plant growth. Among all crops, soybean is particularly significant due to its extensive applications in human food, animal feed, and industrial processes. This study identified twenty-four <i>DUF707</i> genes within the soybean genome, categorised into four distinct classes. Notably, it was observed that the <i>GmDUF707</i> genes are unevenly distributed across 20 chromosomes. An analysis of gene promoters has facilitated the identification of <i>cis</i>-regulatory elements associated with developmental processes and abiotic stress responses. Expression analysis has demonstrated that environmental conditions and stressors modulate the expression of <i>DUF707</i> genes. Furthermore, <i>GmDUF707-22</i> had peak expression during the globular stage (15-fold) and in floral buds (11-fold), suggesting its role in early embryogenesis and reproductive structure development. Furthermore, <i>GmDUF707-3</i> showed the highest expression in leaves, reaching sevenfold. <i>GmDUF707-13</i> and <i>GmDUF707-10</i> demonstrated peak expression in roots (15-fold) and stems (20-fold), respectively. Under salt stress, <i>GmDUF707-21</i> displayed a significant upregulation, with peak expression levels reaching 170% of the baseline at 12&#xa0;h, and 130% at the 6&#xa0;h time point. These results indicate that <i>GmDUF707-21</i> responds robustly to salt stress, in contrast to the other genes. These findings offer significant insights into the critical role that <i>Glycine max Domain of Unknown Function 707</i> (<i>GmDUF707)</i> genes play in determining and regulating responses to abiotic stress.</p>

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Tissue-Specific Expression Analysis of GmDUF707 Genes Suggests Their Role in Soybean Growth Enhancement

  • 期刊论文

  • 发表日期：

    2025年8月6日

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  • Madiha Zaynab,
  • Rashid Al-Yahyai,
  • Jallat Khan,
  • Rania Ali El Hadi Mohamed,
  • Monther Sadder,
  • Shuangfei Li

摘要

Proteins classified within the Domain of Unknown Function (DUF) play a crucial role in plant growth. Among all crops, soybean is particularly significant due to its extensive applications in human food, animal feed, and industrial processes. This study identified twenty-four DUF707 genes within the soybean genome, categorised into four distinct classes. Notably, it was observed that the GmDUF707 genes are unevenly distributed across 20 chromosomes. An analysis of gene promoters has facilitated the identification of cis-regulatory elements associated with developmental processes and abiotic stress responses. Expression analysis has demonstrated that environmental conditions and stressors modulate the expression of DUF707 genes. Furthermore, GmDUF707-22 had peak expression during the globular stage (15-fold) and in floral buds (11-fold), suggesting its role in early embryogenesis and reproductive structure development. Furthermore, GmDUF707-3 showed the highest expression in leaves, reaching sevenfold. GmDUF707-13 and GmDUF707-10 demonstrated peak expression in roots (15-fold) and stems (20-fold), respectively. Under salt stress, GmDUF707-21 displayed a significant upregulation, with peak expression levels reaching 170% of the baseline at 12 h, and 130% at the 6 h time point. These results indicate that GmDUF707-21 responds robustly to salt stress, in contrast to the other genes. These findings offer significant insights into the critical role that Glycine max Domain of Unknown Function 707 (GmDUF707) genes play in determining and regulating responses to abiotic stress.