Acta Agriculturae Boreali-Sinica ›› 2023, Vol. 38 ›› Issue (S1): 49-57. doi: 10.7668/hbnxb.20194251

Special Issue: Biotechnology Fruits

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Transcriptome Analysis of Low Temperature Response in Peach Leaves

SHI Meng, JI Xiaohao, YANG Xingwang, WANG Yingying, WANG Haibo, WANG Xiaodi   

  1. Research Institute of Pomology,Chinese Academy of Agricultural Sciences,Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(Germplasm Resource Utilization),Ministry of Agriculture,Huludao 125000,China
  • Received:2023-05-12 Published:2023-12-28

Abstract:

Cold resistance is an important target trait for peach breeding and is regulated by multiple genes.Transcriptome sequencing is used to sequence transcripts under specific physiological conditions to explore the molecular mechanism of low temperature response of peach leaves.Leaves of Xiongyuejutao under 4 ℃ low temperature(LT)treatment and normal leaves(RT)were analyzed by transcriptome sequencing to explore the molecular regulation mechanism of cold resistance.A total of 72 up-regulated differentially expressed genes and 3 down-regulated genes were obtained by DESeq2.KEGG analysis was used to analyze the functions of differentially expressed genes in MAPK signaling pathway and plant-pathogen interaction pathway,and protein interaction was predicted.The results showed that leaves under low temperature treatment showed physiological states of curled,yellow,and water loss.The differentially expressed genes were mainly enriched in plant-pathogen interaction,MAPK signaling pathway,and secondary biomass accumulation.MYC2,SPCH and Pti4—6 transcription factors may play an important role in the regulation of cold-induced injury in response to cold stress.MYC2 and CBF proteins were predicted to interact with each other and interacted with multiple proteins.The results showed that multiple metabolic pathways responded to low temperature stress in peach leaves,and related transcription factors that may play a key role in the regulation of cold response pathways were predicted,which provided research direction and basis for the exploration of molecular mechanism of cold response regulation in peach.

Key words: Peach, Leaf, Low temperature, Transcriptome analysis

Cite this article

SHI Meng, JI Xiaohao, YANG Xingwang, WANG Yingying, WANG Haibo, WANG Xiaodi. Transcriptome Analysis of Low Temperature Response in Peach Leaves[J]. Acta Agriculturae Boreali-Sinica, 2023, 38(S1): 49-57. doi: 10.7668/hbnxb.20194251.

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