河南农业科学 ›› 2022, Vol. 51 ›› Issue (12): 97-109.DOI: 10.15933/j.cnki.1004-3268.2022.12.012

所属专题: 逆境(激素)响应转录组分析专题

• 园艺 • 上一篇    下一篇

平菇生长发育过程中对IAA响应的转录组分析

崔筱1,张玉亭1,孔维丽1,胡素娟1,刘芹1,王彦坡2,吴杰1,师子文1   

  1. (1.河南省农业科学院 植物营养与资源环境研究所,河南 郑州 450002;2.西峡县食用菌生产办公室,河南 西峡 474599)
  • 收稿日期:2022-07-30 出版日期:2022-12-15 发布日期:2023-01-17
  • 通讯作者: 孔维丽(1976-),女,河南开封人,研究员,硕士,主要从事食用菌育种及平菇发酵料栽培机理研究。E-mail:kongweili2005@126.com
  • 作者简介:崔筱(1983-),女,河南南阳人,助理研究员,博士,主要从事食用菌育种及功能基因研究。E-mail:cuixiao21255@163.com
  • 基金资助:
    河南省现代农业产业技术体系专项(S2013-09,S2013-09-G02);河南省重大公益性专项(201300110700);河南省农业科学院自主创新项目(2022ZC31);河南省农业科学院优秀青年科技基金计划项目(2020YQ18)

Transcriptome Analysis of Pleurotus ostreatus at Different Growth Stages in Response to IAA

CUI Xiao1,ZHANG Yuting1,KONG Weili1,HU Sujuan1,LIU Qin1,WANG Yanpo2,WU Jie1,SHI Ziwen1   

  1. (1.Institute of Plant Nutrition,Agricultural Resources and Environmental Science,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China;2.Xixia Edible Fungus Production Office,Xixia 474599,China)
  • Received:2022-07-30 Published:2022-12-15 Online:2023-01-17

摘要: 为了探究不同生长阶段平菇对IAA 的响应机制,分别用高浓度(1×10-3 mol/L)、低浓度(1×10-8 mol/L)IAA处理平菇生长发育过程的菌丝体(7 d、15 d)及子实体(25 d、27 d、31 d),以不处理为对照(CK),通过转录组筛选差异表达基因(Differentially expressed genes,DEGs)。采用Venn分析、聚类分析、功能富集分析及共表达网络揭示平菇不同生长阶段对IAA响应的分子机制。结果表明,高浓度IAA处理菌丝体和子实体,分别筛选到DEGs 217个和10个,共表达关系对6 735个和32个;低浓度IAA处理菌丝体和子实体分别获得DEGs 81个和87个,共表达关系对766个和1 565个。GO及KEGG富集结果显示,低浓度IAA通过TRINITY_DN2732_c0_g1调控核糖体合成内源植物激素,通过TRINITY_DN530_c0_g1及TRINITY_DN3832_c0_g1促进子实体阶段的代谢进程;高浓度IAA通过TRINITY_DN41591_c0_g1调控甘油磷脂代谢过程,TRINITY_DN14069_c0_g1 调控几丁质代谢及TRINITY_DN35150_c0_g1、TRINITY_DN5314_c0_g1、TRINITY_DN43009_c0_g1调节氧化还原酶活性,同时通过TRINITY_DN21430_c0_g1调控子实体阶段ATP的合成。以上结果表明,低浓度IAA通过DEGs影响平菇菌丝体阶段的激素合成及子实体阶段的代谢过程;高浓度IAA通过DEGs调控平菇菌丝体阶段的氧化应激机制及子实体阶段的ATP合成。

关键词: 平菇, IAA, 菌丝体阶段, 子实体阶段, 转录组分析

Abstract: To investigate the mechanism of Pleurotus ostreatus at different growth stages in response to IAA,transcriptome sequencing of mycelium(7 d,15 d)and fruiting body stage(25 d,27 d,31 d)under two concentrations of IAA(high concentration:1×10‑3 mol/L;low concentration:1×10‑8 mol/L) was performed to screen the differentially expressed genes(DEGs),with no treatment(0 mol/L IAA)as the control.Through Venn analysis,cluster analysis,functional enrichment analysis,and the construction of co‑expression network,the molecular mechanism of P.ostreatus at different growth stages in response to IAA concentration was revealed.Results indicated that 217 DEGs,6 735 co‑expression pairs at the mycelium stage and 10 DEGs,32 co‑expression pairs at the fruiting body stage were screened under the high concentration of IAA,while 81 DEGs and 87 DEGs,and 766 co‑expression pairs and 1 565 co‑expression pairs were dug out under the low concentration of IAA at the mycelium and fruiting body stage,respectively.The GO and KEGG results showed that the low concentration of IAA could regulate ribosome synthesis of endogenous plant hormones through TRINITY_DN2732_c0_g1,while promote the metabolism of the fruiting body stage through TRINITY_DN530_c0_g1 and TRINITY_DN3832_c0_g1.High concentration of IAA could regulate glycerophospholipid metabolism through TRINITY_DN41591_c0_g1,regulate chitin metabolism through TRINITY_DN14069_c0_g1,and regulate oxidoreductase activity through TRINITY_DN35150_c0_g1,TRINITY_DN5314_c0_g1 and TRINITY_DN43009_c0_g1,while at the fruiting body stage,high concentration of IAA regulated ATP synthesis via TRINITY_DN21430_c0_g1.The above results indicate that low concentration of IAA affects the phytohormone synthesis in the mycelium stage,and the metabolic process in the fruit body stage of P.ostreatus through DEGs;high concentration of IAA affects the oxidative stress mechanism in the mycelium stage,and the ATP synthesis in the fruit body stage of P.ostreatus through DEGs.

Key words: Pleurotus ostreatus, IAA, Mycelium stage, Fruiting body stage, Transcriptome analysis

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