Acta Agriculturae Boreali-Sinica ›› 2024, Vol. 39 ›› Issue (6): 27-39. doi: 10.7668/hbnxb.20195231

Special Issue: Biotechnology

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

Combined Transcriptomic and Metabolomic Analysis of Spinach under Cold and Heat Stress

GONG Rui1,2, ZHANG Linlin1,2, CUI Yanling2, CHEN Haili2, LI Ranhong1, QIAN Zongwei2   

  1. 1 College of Life Science and Technology,Mudanjiang Normal University,Mudanjiang 157011,China
    2 Beijing Vegetable Research Center,Beijing Academy of Agriculture and Forestry Sciences,National Key Laboratory of Vegetable Biological Breeding,National Engineering Research Center for Vegetables, Beijing Key Laboratory of Vegetable Germplasms Improvement,Beijing 100097,China
  • Received:2024-08-06 Published:2024-12-28

Abstract:

Temperature stress is one of the main nonbiological stresses that affect the quality and yield of spinach.Investigating the molecular response mechanism of spinach to temperature stress is crucial for spinach stress tolerance breeding.To provide a theoretical basis for the research of the mechanism of spinach resistant to cold stress and heat stress,this study used the cold-tolerant inbred line D3 and the heat-tolerant inbred line M10 of spinach as experimental materials and analyzed their transcriptomes and metabolomes under cold and heat stress to explore the transcriptional and metabolic mechanisms underlying spinach tolerance.Transcriptomic analysis showed that the pathways in which the DEGs were the most enriched in D3 and M10 were essentially the same under cold stress and heat stress.Metabolomics analysis showed that under cold stress,they were coenriched in the pyrimidine metabolism and lysine degradation in KEGG pathways.Under heat stress,these were mainly enriched in the tryptophan metabolism,toluene degradation,biosynthesis of various other secondary metabolites,and glycine,serine and threonine metabolism in KEGG pathways.The joint transcriptomic and metabolomic analysis indicated that through data analysis and gene annotation.SpADH(sov2g036390),SpSHMT(sov1g001130)and SpALDH-1(sov4g007150)were identified as the candidate genes for cold stress tolerance in spinach.SpALDH-1(sov4g007150),SpALDH-2(sov1g043320)and SpNPC(sov1g040610)were identified as candidate genes for heat stress in spinach.Among them,SpALDH-1(sov4g007150),which may be a regulatory gene for spinach stress tolerance,was significantly expressed under both cold and heat stress.

Key words: Spinach, Cold stress, Heat stress, Transcriptome, Metabolome, Candidate gene

Cite this article

GONG Rui, ZHANG Linlin, CUI Yanling, CHEN Haili, LI Ranhong, QIAN Zongwei. Combined Transcriptomic and Metabolomic Analysis of Spinach under Cold and Heat Stress[J]. Acta Agriculturae Boreali-Sinica, 2024, 39(6): 27-39. doi: 10.7668/hbnxb.20195231.

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