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<p>Abiotic stress in plants severely affects crop production, with salt stress being one of the most significant causes for reduced crop yield. The salt stress tolerance in plants is controlled and regulated by several pathways of which the salt overly sensitive (SOS) pathway is the highly explored one. The <i>SOS</i> group of genes and their signaling pathway has been well characterized in <i>Arabidopsis thaliana</i>, however, SOS group of genes in <i>Camellia sinensis</i> is yet to be explored. The present study identifies 9 <i>SOS</i> genes in <i>C. sinensis</i> and analyses of their phylogenetic (evolutionary) and structural connections. The phylogenetic tree was further classified into 6 distinct clades and similar number of introns and exons were obtained for the genes belonging to the same clade. The domain analysis showed distinct clade specific domains. Cis-acting element analysis revealed that the promoter region of <i>CsSOS</i> contains various cis-acting elements associated with hormone regulation and abiotic stress responses. Furthermore, <i>in-silico</i> gene expression studies indicated that these genes were crucial in the plant’s response towards both abiotic and biotic stresses. The real time PCR also confirmed the potential roles of various <i>SOS</i> genes in response to abiotic stress and hormone treatments. The findings of this study along with the functional analyses will help in better comprehension of the SOS regulatory network&#xa0;in&#xa0;<i>C.</i>&#xa0;<i>sinensis</i> that will enhance our understanding in improvement of salt stress tolerance in <i>C. sinensis</i>.</p>

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Genome Wide Identification, Expression Profiles and Regulatory Network Analysis of SOS Group of Genes in Camellia Sinensis

  • 期刊论文

  • 发表日期：

    2025年3月25日

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  • Surjit Bhattacharjee,
  • Abhirup Paul,
  • Aradhana Jana,
  • Deepak R,
  • G. Meher Unnati,
  • Wang Li,
  • Archita Chatterjee,
  • Chen Lin,
  • Guoxin Shen,
  • Neelam Mishra

摘要

Abiotic stress in plants severely affects crop production, with salt stress being one of the most significant causes for reduced crop yield. The salt stress tolerance in plants is controlled and regulated by several pathways of which the salt overly sensitive (SOS) pathway is the highly explored one. The SOS group of genes and their signaling pathway has been well characterized in Arabidopsis thaliana, however, SOS group of genes in Camellia sinensis is yet to be explored. The present study identifies 9 SOS genes in C. sinensis and analyses of their phylogenetic (evolutionary) and structural connections. The phylogenetic tree was further classified into 6 distinct clades and similar number of introns and exons were obtained for the genes belonging to the same clade. The domain analysis showed distinct clade specific domains. Cis-acting element analysis revealed that the promoter region of CsSOS contains various cis-acting elements associated with hormone regulation and abiotic stress responses. Furthermore, in-silico gene expression studies indicated that these genes were crucial in the plant’s response towards both abiotic and biotic stresses. The real time PCR also confirmed the potential roles of various SOS genes in response to abiotic stress and hormone treatments. The findings of this study along with the functional analyses will help in better comprehension of the SOS regulatory network in C. sinensis that will enhance our understanding in improvement of salt stress tolerance in C. sinensis.