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园艺学报 ›› 2025, Vol. 52 ›› Issue (4): 883-896.doi: 10.16420/j.issn.0513-353x.2024-0371

• 遗传育种·种质资源·分子生物学 • 上一篇    下一篇

非呼吸跃变和呼吸跃变型甜瓜成熟果实的激素与转录组分析

唐伶俐1,2,贺玉花1,王庆涛1,安璐璐1,徐永阳1,张  健1,孔维虎1,户克云1,赵光伟1,2,*(tanglingli@caas.cn)   

  1. 1中国农业科学院郑州果树研究所,郑州 450009 2中国农业科学院中原研究中心,河南新乡 453500
  • 收稿日期:2024-12-18 修回日期:2025-02-19 出版日期:2025-04-25 发布日期:2025-04-25
  • 通讯作者: *E-mail:tanglingli@caas.cn
  • 基金资助:
    中央级基本业务科研经费项目(1610192023306);国家自然基金项目(32172581);现代农业产业技术体系建设专项资助(CARS-25-2025-G6);中国农业科学院科技创新工程项目(CAAS-ASTIP-2025-ZFRI);河南省重大科技专项(221100110400);河南省科技攻关计划项目(25210211098)

Hormonal and Transcriptome Analysis of Ripe Fruits of Non-Climacteric and Climacteric Melon

TANG Lingli1,2,HE Yuhua1,WANG Qingtao1,AN Lulu1,XU Yongyang1,ZHANG Jian1,KONG Weihu1,HU Keyun1,and ZHAO Guangwei1,2,*(tanglingli@caas.cn)   

  1. 1Zhengzhou Fruit Research InstituteChinese Academy of Agricultural SciencesZhengzhou 450009China 2Zhongyuan Research CenterChinese Academy of Agricultural SciencesXinxiangHenan 453500,China
  • Received:2024-12-18 Revised:2025-02-19 Published:2025-04-25 Online:2025-04-25

摘要: 甜瓜果实按照成熟习性可分为非呼吸跃变和呼吸跃变两种类型,其不同的激素、糖类代谢等成熟相关调控机制不十分清楚。对非呼吸跃变和呼吸跃变型甜瓜成熟果实进行激素代谢物分析,发现非呼吸跃变型甜瓜果实中脱落酸(ABA)、1–氨基环烷羧酸(ACC)、反式玉米素核苷–5′–单磷酸二钠盐(tZRMP)和生长素含量较高;进一步对非呼吸跃变型和呼吸跃变型甜瓜成熟果实的差异代谢物进行KEGG富集分析,结果表明“代谢途径”“植物激素信号转导”和“各种生物碱的生物合成”在非呼吸跃变型和呼吸跃变型甜瓜成熟果实中差异较大。通过RNA-seq建库和qRT-PCR鉴定到CmARFCmARR2-likeCmGAI-likeCmPP2CCmACOCmEIL与激素代谢差异表达相关。在非呼吸跃变型甜瓜果实成熟中,ABA、吲哚、ACC和GA起关键作用;但在呼吸跃变型甜瓜果实中,除ABA外,IAA、GA和ETH信号通路也参与了调控。

关键词: 甜瓜, 果实成熟, 植物激素, 转录组, 基因表达

Abstract: Melon can be divided into non-climacteric and climacteric according to mature habituation,but the most important hormones,sugar metabolites and genetic regulatory mechanisms remain elusive between non-climacteric and climacteric melon. Plant hormone metabolism detection revealed that abscisic acid(ABA),and the content of 1-aminocyclop ropanecarboxylic acid(ACC),trans-Zeatin Riboside-5′-monophosphate Disodium Salt(tZRMP)and auxin were higher in mature non-climacteric melon. The KEGG pathway enrichment analysis of these differentially expressed genes(DEGs)revealed“metabolic pathways”,“plant hormone signal transduction”and“biosynthesis of various alkaloids” were significantly different in the ripe fruits of non-climacteric and climacteric melons. The RNA-seq and qRT-PCR analyses were performed to identify important genes,enzymes and pathways that are involved in sugar and hormone metabolites. CmARFCmARR2-likeCmGAI-likeCmPP2CCmACO and CmEIL associated with plant hormone metabolism were identified in mature melon. ABA,Indole,ACC and GA pathways play key roles in non-climacteric melon. While besides ABA,IAA,GA,and ethylene(ETH)signaling pathways were also involved in regulating the maturation of climacteric melon.

Key words: melon, fruit ripening, phytohormone, transcriptome, gene expression

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