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<p><i>Teosinte branched1/cycloidea/proliferating cell factor</i> (<i>TCP</i>) is a plant-specific transcription factor that plays an important role in plant growth and development, signal transduction, and response to abiotic stresses. In recent years, quinoa has gained popularity worldwide due to its adaptability and rich nutritional content, making research into its stress resistance particularly significant. The rapid development of whole genome sequencing has enabled the identification and characterization of the <i>TCP gene family</i> in many plant species, but until now the <i>TCP gene family</i> has not been identified and characterized in quinoa. Therefore, the study is the first genome-wide investigation of the <i>TCP gene family</i> in quinoa. We identified nine <i>CqTCP</i> genes from the quinoa genome and divided them into 3 subfamilies (<i>CYC/TB1</i> subfamily, <i>CIN</i> subfamily and <i>PCF</i> subfamily), which were located on four chromosomes and unevenly distributed, and <i>TCP</i> genes clustered in the same subfamily were similar in terms of conserved motifs and gene structures; evolutionary analyses revealed a closer affinity to the <i>TCP</i> genes of the dicotyledonous plant <i>Arabidopsis thaliana</i>; the promoter region was enriched in cis-elements related to light response, hormone response, growth and development, and response to adversity; expression pattern analysis showed that the expression levels of <i>CQ037198</i> varied greatly under waterlogging stress, drought stress, high temperature stress, and low temperature stress. The results of this study may provide new insights into quinoa <i>TCP</i> transcription factors and lay the foundation for further studies on the function of quinoa <i>TCP</i> genes. At the same time, it will help to further explore the stress resistance mechanism of quinoa and provide theoretical reference for breeding highly resistant quinoa varieties.</p>

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Genome-Wide Identification and Expression Analysis of the TCP Gene Family in Quinoa (Chenopodium quinoa Willd.)

  • 期刊论文

  • 发表日期：

    2025年12月11日

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  • Yutao Bai,
  • Heng Zhang,
  • Guofei Jiang,
  • Xuqin Wang,
  • Lingyuan Zhang,
  • Ping Zhang,
  • Junna Liu,
  • Li Li,
  • Hanxue Li,
  • Liubin Huang,
  • Shan Zhang,
  • Rongbo Li,
  • Peng Qin

摘要

Teosinte branched1/cycloidea/proliferating cell factor (TCP) is a plant-specific transcription factor that plays an important role in plant growth and development, signal transduction, and response to abiotic stresses. In recent years, quinoa has gained popularity worldwide due to its adaptability and rich nutritional content, making research into its stress resistance particularly significant. The rapid development of whole genome sequencing has enabled the identification and characterization of the TCP gene family in many plant species, but until now the TCP gene family has not been identified and characterized in quinoa. Therefore, the study is the first genome-wide investigation of the TCP gene family in quinoa. We identified nine CqTCP genes from the quinoa genome and divided them into 3 subfamilies (CYC/TB1 subfamily, CIN subfamily and PCF subfamily), which were located on four chromosomes and unevenly distributed, and TCP genes clustered in the same subfamily were similar in terms of conserved motifs and gene structures; evolutionary analyses revealed a closer affinity to the TCP genes of the dicotyledonous plant Arabidopsis thaliana; the promoter region was enriched in cis-elements related to light response, hormone response, growth and development, and response to adversity; expression pattern analysis showed that the expression levels of CQ037198 varied greatly under waterlogging stress, drought stress, high temperature stress, and low temperature stress. The results of this study may provide new insights into quinoa TCP transcription factors and lay the foundation for further studies on the function of quinoa TCP genes. At the same time, it will help to further explore the stress resistance mechanism of quinoa and provide theoretical reference for breeding highly resistant quinoa varieties.