生物技术通报 ›› 2022, Vol. 38 ›› Issue (11): 58-69.doi: 10.13560/j.cnki.biotech.bull.1985.2022-0203

• 技术与方法 • 上一篇    下一篇

转录组与代谢组联合分析菠萝网纱覆盖防寒机制

刘传和1(), 贺涵1, 何秀古2(), 赖秋勤1, 刘开1, 邵雪花1, 赖多1, 匡石滋1, 肖维强1   

  1. 1.广东省农业科学院果树研究所 农业农村部南亚热带果树生物学与遗传资源利用重点实验室 广东省热带亚热带果树研究重点实验室,广州 510640
    2.广东省农业科学院,广州 510640
  • 收稿日期:2022-02-21 出版日期:2022-11-26 发布日期:2022-12-01
  • 作者简介:刘传和,男,博士,副研究员,研究方向:菠萝优质高效种植技术与新品种选育;E-mail:founderlch@126.com
  • 基金资助:
    乡村振兴战略专项资金(403-2018-XMZC-0002-90);乡村振兴战略专项资金(TS-3-1);国家重点研发计划项目(2019YFD1001100);广东省现代农业产业技术体系创新团队建设专项资金(2021KJ109);广东省现代农业产业技术体系创新团队建设专项资金(2022KJ109);广东省农业科学院菠萝产业研究院项目,广东省农村科技特派员项目(KTP20210395)

Unveiling the Mechanisms of Pineapple Responding to Anti-chilling by Gauze Covering in Winter via Transcriptome and Metabolome Profiling

LIU Chuan-he1(), HE Han1, HE Xiu-gu2(), LAI Qiu-qin1, LIU Kai1, SHAO Xue-hua1, LAI Duo1, KUANG Shi-zi1, XIAO Wei-qiang1   

  1. 1. Institute of Fruit Tree Research,Guangdong Academy of Agricultural Sciences/Key Laboratory of South Subtropical Fruit Biology and Genetic Resource Utilization Ministry of Agriculture and Rural Affairs/ Guangdong Provincial Key Laboratory of Tropical and Subtropical Fruit Tree Research,Guangzhou 510640
    2. Guangdong Academy of Agricultural Sciences,Guangzhou 510640
  • Received:2022-02-21 Published:2022-11-26 Online:2022-12-01

摘要:

本研究以不覆盖为对照(CK),通过转录组、代谢组进行基因表达和代谢物差异分析,探究冬季菠萝黑色网纱覆盖防寒(FH)的生理及分子机制。转录组分析表明,与CK相比,FH中筛选到1 125个差异表达基因,其中表达上调和下调基因分别为417个和708个。差异基因主要富集在淀粉和蔗糖代谢、内质网蛋白加工、苯丙素生物合成和氨基酸生物合成等通路;筛选出19个与防寒相关的候选关键差异基因,包括WRKYMYBbHLH等转录因子基因及ERD6-like、β-葡萄糖苷酶等酶基因。代谢组分析表明,与CK相比,FH中筛选到151个差异代谢物,包括含量上调57个和含量下调94个。差异代谢物主要富集在嘌呤和嘧啶代谢、氨基酸类代谢、脂类代谢和黄酮类代谢等通路;筛选出26个与防寒相关的关键差异代谢物,主要包括类黄酮、氨基酸、多胺、脂和糖类等。本研究结果表明,黑色网纱覆盖通过影响菠萝相关基因差异表达和代谢物变化来调控菠萝生长发育,安全越冬,为今后指导菠萝冬季防寒,挖掘菠萝耐寒功能基因奠定基础。

关键词: 菠萝, 网纱覆盖, 防寒, 差异表达基因, 差异代谢物

Abstract:

The aim of this trial is to investigate the physiological and molecular mechanisms of pineapple responding to anti-chilling by gauze covering practices(FH)through the gene expression and metabolite differences analysis of transcriptomics and metabolomics compared with no covering control(CK). The results of transcriptomics indicated that 1 125 differential expressed genes were detected in FH,including 417 up-regulated genes and 708 down-regulated genes,when compared with CK. The differential expressed genes were mainly enriched in 4 KEGG pathways including starch and sucrose metabolism,protein processing in endoplasmic reticulum,phenylpropanoid biosynthesis and amino acid biosynthesis. Nineteen differential expressed genes were found to be related to cold resistance,including a few of transcription factors named WRKYMYB and bHLH as well as some enzyme genes named ERD6-like and β-glucosidase. Metabolome profiling suggested that a total of 151 differential metabolites were detected in FH group,including 57 and 94 up-regulated and down-regulated ones when compared with CK,respectively. The differential metabolites were mainly enriched in the 4 metabolic pathways including purine and pyrimidine metabolism,amino acid metabolism,lipids metabolism and flavonoid biosynthesis. A total of 26 differential metabolites were found to be involved in cold resistance,including flavonoids,amino acids,polyamine,lipids and carbohydrates. The results of this study reveal that that pineapple growth and safe overwintering may be regulated by affecting its differential gene expression and metabolite changes while using black gauze covering,which lays a foundation in guiding the pineapple anti-chilling in winter and digging the function genes of pineapple resistant to cold.

Key words: pineapple, gauze covering, anti-chilling, differential expressed genes, differential metabolites