Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (12): 2944-2951.DOI: 10.16178/j.issn.0528-9017.20240611

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Mining, identification, and expression analysis of the DoNPF gene family in Dendrobium officinale

FU Manman(), GUO Fangqi, WU Chao()   

  1. Institute of Horticulture, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, Zhejiang
  • Received:2024-07-24 Online:2025-12-11 Published:2025-12-17

Abstract:

Low temperature is one of the crucial environmental factors that limit plant productivity and geographical distribution, severely affecting plant growth and development. Mining cold-resistant germplasm and conducting in-depth research on its mechanism of action are of great significance for improving the cold resistance of crops. Dendrobium officinale is a traditional and precious Chinese medicinal herb in China, with unique effects such as promoting saliva secretion and nourishing the stomach, nourishing yin and clearing heat, and moistening the lungs and tonifying the kidneys. It is ranked first among the “nine great immortal herbs of China”. With the development of wild-simulation cultivation technology and the gradual northward expansion of Dendrobium officinale planting areas, the breeding of cold-resistant Dendrobium officinale varieties is particularly important. In this study, transcriptome data of Dendrobium officinale under low-temperature treatment were deeply mined to obtain key DoNPF genes involved in low-temperature response. Based on the published genome data and transcriptome data of Dendrobium officinale, bioinformatics methods were used to identify members of the DoNPF gene family, and their gene structures and gene expressions were analyzed. Finally, 8 DoNPF genes with significantly (p<0.05) differential expression involved in low-temperature response were screened out. This study is of great significance for improving the cold resistance of Dendrobium officinale and breeding cold-resistant Dendrobium officinale varieties.

Key words: Dendrobium officinale, DoNPF gene family, low temperature, genome-wide identification

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