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Transcriptome Profiles of Postharvest White-Fleshed Pitaya (Hylocereus undatus) in Response to Methyl Jasmonate Treatment
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Shengnan ZHU1, Hairong LIN2, Yuxing MO1, Haili LI1, Jindi WANG1, Kaidong LIU1, *
Chinese Journal of Tropical Crops | 2025, 46(2) : 256 - 265
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Chinese Journal of Tropical Crops | 2025, 46(2): 256-265
• Omics & Biotechnology •
Transcriptome Profiles of Postharvest White-Fleshed Pitaya (Hylocereus undatus) in Response to Methyl Jasmonate Treatment
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Shengnan ZHU1, Hairong LIN2, Yuxing MO1, Haili LI1, Jindi WANG1, Kaidong LIU1, *
Affiliations
  • 1.Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong 524048, China
  • 2.Zhanjiang Agrotechnical Extension Center, Zhanjiang, Guangdong 524043, China
Published: 2025-02-25 doi: 10.3969/j.issn.1000-2561.2025.02.002
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The molecular mechanism underlying white-fleshed pitaya (Hylocereus undatus) in response to MeJA treatment during the fruit postharvest ripening was investigated. The differentially expressed genes (DEGs) response to MeJA treatment were analyzed by the digital gene expression profiling technology. The results showed that compared with the control, a total of 15 596 DEGs, including 6135 up-regulated genes and 9461 down-regulated genes, were identified. Gene ontology analysis showed that most DEGs were involved in cell metabolism, biological regulation, biosynthesis, catalysis, binding activities and transport activities. KEGG pathway enrichment analysis revealed that all DEGs were assigned in many pathways, mainly involving in photosynthesis, plant hormone signal transduction, protein processing and starch and carbohydrate metabolism. Moreover, the transcripts of most genes involved in ethylene-signaling transduction and cell-wall degradation, belonging to ERF, EIN, XTH, PG and XTH family, were found to be significantly down-regulated. These results strongly suggest that MeJA treatment may be involved in delaying the softening of white-pitaya by restraining the ethylene-signaling transduction and retarding the degradation of cell wall during postharvest ripening. The results would lay a foundation for further research on developing the more efficient postharvest preservation technology for tropical fruits.

pitaya (Hylocereus undatus)  /  methyl jasmonate  /  postharvest ripening  /  differentially expressed gene
Shengnan ZHU, Hairong LIN, Yuxing MO, Haili LI, Jindi WANG, Kaidong LIU. Transcriptome Profiles of Postharvest White-Fleshed Pitaya (Hylocereus undatus) in Response to Methyl Jasmonate Treatment[J]. Chinese Journal of Tropical Crops, 2025 , 46 (2) : 256 -265 . DOI: 10.3969/j.issn.1000-2561.2025.02.002
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Year 2025 volume 46 Issue 2
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Article Info
doi: 10.3969/j.issn.1000-2561.2025.02.002
  • Receive Date：2024-09-11
  • Online Date：2026-06-23
  • Published：2025-02-25
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  • Received：2024-09-11
  • Revised：2024-09-26
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Affiliations
    1.Life Science and Technology School, Lingnan Normal University, Zhanjiang, Guangdong 524048, China
    2.Zhanjiang Agrotechnical Extension Center, Zhanjiang, Guangdong 524043, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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