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<p>The protein phosphatase 2&#xa0;C (PP2C) plays a crucial role in the growth and development of plants. However, limited information on the PP2C genes in <i>Chimonanthus</i> spp. is available. Therefore, the comprehensive genome-wide identification and analysis of the PP2Cs gene family is necessary in <i>Chimonanthus</i> spp. to provide basic information for further study. In this work, 93 members of the <i>CsPP2C</i> gene family and 85 members of the <i>CpPP2C</i> gene family were identified. Based on the phylogenetic analysis, 93 CsPP2Cs and 85 CpPP2Cs genes were classified into 13 subgroups. Based on RNA-Seq data, specific expression patterns of CsPP2Cs in different tissues were identified. <i>CsPP2C28</i>, <i>CsPP2C55</i>, and <i>CsPP2C17</i> showed high expression during leaf senescence, and combined with <i>cis</i>-element analysis, it is speculated that they may participate in regulating plant senescence. <i>CsPP2C47</i>, <i>CsPP2C27</i>, <i>CsPP2C42</i>, and <i>CsPP2C41</i> may play an important role in responding to abscisic acid during seed dormancy and germination. These results contribute to a deeper understanding of the functions of the CsPP2C gene family and CpPP2C gene family, and providing candidate genes for genetic engineering and breeding to enhance important traits such as stress resistance and growth development in <i>C. salicifolius</i> and <i>C. praecox</i>.</p>

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Genome-wide identification and expression analysis of PP2C gene families in two Chimonanthus species

  • 期刊论文

  • 发表日期：

    2025年5月3日

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  • Xin-Chen He,
  • Jie-Xin Shao,
  • Wei Zou,
  • Shu-Xiao Zhang,
  • Li Zhu,
  • Meng-Cheng Ji,
  • Cui-Hua Gu,
  • Li-Yuan Yang

摘要

The protein phosphatase 2 C (PP2C) plays a crucial role in the growth and development of plants. However, limited information on the PP2C genes in Chimonanthus spp. is available. Therefore, the comprehensive genome-wide identification and analysis of the PP2Cs gene family is necessary in Chimonanthus spp. to provide basic information for further study. In this work, 93 members of the CsPP2C gene family and 85 members of the CpPP2C gene family were identified. Based on the phylogenetic analysis, 93 CsPP2Cs and 85 CpPP2Cs genes were classified into 13 subgroups. Based on RNA-Seq data, specific expression patterns of CsPP2Cs in different tissues were identified. CsPP2C28, CsPP2C55, and CsPP2C17 showed high expression during leaf senescence, and combined with cis-element analysis, it is speculated that they may participate in regulating plant senescence. CsPP2C47, CsPP2C27, CsPP2C42, and CsPP2C41 may play an important role in responding to abscisic acid during seed dormancy and germination. These results contribute to a deeper understanding of the functions of the CsPP2C gene family and CpPP2C gene family, and providing candidate genes for genetic engineering and breeding to enhance important traits such as stress resistance and growth development in C. salicifolius and C. praecox.