Transcriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNV

Abstract Infectious spleen and kidney necrosis virus (ISKNV) is a highly virulent and rapidly transmissible fish virus that poses threats to the aquaculture of a wide variety of freshwater and marine fish. N6-methyladenosine (m6A), recognized as a common epigenetic modification of RNA, plays an impo...

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Main Authors: Qijin Miao, Jing Jiang, Siyou Huang, Jie Gao, Qingqing Liu, Rui Zheng, Yiling Kang, Changjun Guo, Jianguo He, Junfeng Xie
Format: Article
Language:English
Published: BMC 2025-01-01
Series:BMC Genomics
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Online Access:https://doi.org/10.1186/s12864-025-11211-x
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author Qijin Miao
Jing Jiang
Siyou Huang
Jie Gao
Qingqing Liu
Rui Zheng
Yiling Kang
Changjun Guo
Jianguo He
Junfeng Xie
author_facet Qijin Miao
Jing Jiang
Siyou Huang
Jie Gao
Qingqing Liu
Rui Zheng
Yiling Kang
Changjun Guo
Jianguo He
Junfeng Xie
author_sort Qijin Miao
collection DOAJ
description Abstract Infectious spleen and kidney necrosis virus (ISKNV) is a highly virulent and rapidly transmissible fish virus that poses threats to the aquaculture of a wide variety of freshwater and marine fish. N6-methyladenosine (m6A), recognized as a common epigenetic modification of RNA, plays an important regulatory role during viral infection. However, the impact of m6A RNA methylation on the pathogenicity of ISKNV remains unexplored. Here, methylated RNA immunoprecipitation sequencing (MeRIP-seq) coupled with RNA sequencing (RNA-seq) was used to systematically detect variations in m6A methylation and gene expression between ISKNV-infected and noninfected MFF-1 cells, followed by functional enrichment and co-expression joint analysis. The findings revealed that the m6A methylation peaks were located mainly in coding sequences (CDSs), with more than 90% of the transcripts containing 1–5 m6A peaks. Through MeRIP-seq, 4361 differentially m6A-methylated mRNAs were identified. Gene enrichment analysis revealed that m6A-related genes were enriched in biological processes and pathways such as gene expression, cellular structure, immune responses, and cell death. Co-expression analysis revealed that the genes differentially expressed at both the mRNA and m6A modification levels were enriched in pathways such as the hippo, ErbB, and JAK-STAT pathways. The m6A modification at the genome-wide transcription level of ISKNV was subsequently shown to be pronounced in several pivotal genes, such as putative vascular endothelial growth factor, ribonucleotide reductase small subunit, and E3 ubiquitin ligase. This study comprehensively describes the m6A expression profile in ISKNV- and ISKNV-infected MFF-1 cells, providing a basis for investigating the role of m6A modification during ISKNV infection.
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spelling doaj-art-077769293860461085a9b5667d8e9cf92025-01-12T12:09:25ZengBMCBMC Genomics1471-21642025-01-0126111310.1186/s12864-025-11211-xTranscriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNVQijin Miao0Jing Jiang1Siyou Huang2Jie Gao3Qingqing Liu4Rui Zheng5Yiling Kang6Changjun Guo7Jianguo He8Junfeng Xie9State Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversitySchool of Marine Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityState Key Laboratory of Biocontrol, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), China-ASEAN Belt and Road Joint Laboratory on Mariculture Technology, Guangdong Provincial Key Laboratory of Aquatic Economic Animals, School of Life Sciences, Sun Yat-sen UniversityAbstract Infectious spleen and kidney necrosis virus (ISKNV) is a highly virulent and rapidly transmissible fish virus that poses threats to the aquaculture of a wide variety of freshwater and marine fish. N6-methyladenosine (m6A), recognized as a common epigenetic modification of RNA, plays an important regulatory role during viral infection. However, the impact of m6A RNA methylation on the pathogenicity of ISKNV remains unexplored. Here, methylated RNA immunoprecipitation sequencing (MeRIP-seq) coupled with RNA sequencing (RNA-seq) was used to systematically detect variations in m6A methylation and gene expression between ISKNV-infected and noninfected MFF-1 cells, followed by functional enrichment and co-expression joint analysis. The findings revealed that the m6A methylation peaks were located mainly in coding sequences (CDSs), with more than 90% of the transcripts containing 1–5 m6A peaks. Through MeRIP-seq, 4361 differentially m6A-methylated mRNAs were identified. Gene enrichment analysis revealed that m6A-related genes were enriched in biological processes and pathways such as gene expression, cellular structure, immune responses, and cell death. Co-expression analysis revealed that the genes differentially expressed at both the mRNA and m6A modification levels were enriched in pathways such as the hippo, ErbB, and JAK-STAT pathways. The m6A modification at the genome-wide transcription level of ISKNV was subsequently shown to be pronounced in several pivotal genes, such as putative vascular endothelial growth factor, ribonucleotide reductase small subunit, and E3 ubiquitin ligase. This study comprehensively describes the m6A expression profile in ISKNV- and ISKNV-infected MFF-1 cells, providing a basis for investigating the role of m6A modification during ISKNV infection.https://doi.org/10.1186/s12864-025-11211-xSiniperca chuatsiN6-methyladenosineISKNVMeRIP-seqMFF-1 cells
spellingShingle Qijin Miao
Jing Jiang
Siyou Huang
Jie Gao
Qingqing Liu
Rui Zheng
Yiling Kang
Changjun Guo
Jianguo He
Junfeng Xie
Transcriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNV
BMC Genomics
Siniperca chuatsi
N6-methyladenosine
ISKNV
MeRIP-seq
MFF-1 cells
title Transcriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNV
title_full Transcriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNV
title_fullStr Transcriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNV
title_full_unstemmed Transcriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNV
title_short Transcriptome-wide dynamics of m6A methylation in ISKNV and Siniperca chuatsi cells infected with ISKNV
title_sort transcriptome wide dynamics of m6a methylation in isknv and siniperca chuatsi cells infected with isknv
topic Siniperca chuatsi
N6-methyladenosine
ISKNV
MeRIP-seq
MFF-1 cells
url https://doi.org/10.1186/s12864-025-11211-x
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