MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolism

IntroductionTo elucidate the role of miRNAs in porcine muscle tissues, this study used Solexa high-throughput sequencing to identify and compare differentially expressed miRNAs in Landrace pigs and the Diannan small ear pigs.MethodsSmall RNA libraries were constructed from high-quality RNAs extracte...

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Main Authors: Yuxiao Xie, Wenjie Cheng, Meilin Hao, Lan-lan Yi, Jun-hong Zhu, Yan-guang Zhao, Sumei Zhao
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-07-01
Series:Frontiers in Veterinary Science
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Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2025.1482031/full
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author Yuxiao Xie
Yuxiao Xie
Wenjie Cheng
Meilin Hao
Lan-lan Yi
Jun-hong Zhu
Yan-guang Zhao
Sumei Zhao
author_facet Yuxiao Xie
Yuxiao Xie
Wenjie Cheng
Meilin Hao
Lan-lan Yi
Jun-hong Zhu
Yan-guang Zhao
Sumei Zhao
author_sort Yuxiao Xie
collection DOAJ
description IntroductionTo elucidate the role of miRNAs in porcine muscle tissues, this study used Solexa high-throughput sequencing to identify and compare differentially expressed miRNAs in Landrace pigs and the Diannan small ear pigs.MethodsSmall RNA libraries were constructed from high-quality RNAs extracted from the Longissimus dorsi muscle (LDM) muscles of the two breeds of pigs and high-throughput sequencing was performed to identify and compare differentially expressed of miRNAs (DEmiRNAs). The target genes corresponding to the differentially expressed miRNAs were subjected to functional annotation, Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genomes (KEGG) pathway enrichment analysis.Results241 known conserved miRNAs sequences and 20 novel miRNAs in the Diannan small ear pigs library and known conserved miRNAs sequences and 22 novel miRNAs in the Landrace pigs library were identified. It is noteworthy that 14 miRNAs showed significant expression differences between the two pig breeds, and the expression levels of these miRNAs were lower in the Diannan small ear pigs than the Landrace pigs, among which the most significantly difference was miR-27a. GO and KEGG analyses showed that 26 target genes of DEmiRNAs were associated with inositol phosphate metabolism and phosphatidylinositol signalling pathways including INPPL1, INPP5J, INPP5A, INPP5B, INPP4A, INPP4B, INPP1, IMPAD1, DGKZ, CDLPT, CALM1, PLCG1, PLCCD3, PLCB4, PIP4K2A, PIK3R1 and PIK3CB, PIK3CA, ITPKC and ITPK1 genes which may be key genes regulating phosphatidylinositol 4,5-bisphosphate (PIP2), phospholipase C (PLC), inositol triphosphate (IP3), protein kinase C (PKC), calcium (Ca2+) and diacylglycerol (DAG).ConclusionThe findings of this study provide a theoretical framework for a more comprehensive understanding of the biological functions of miRNAs in muscle tissues, and lay a foundation for the discovery and utilisation of high-quality germplasm resources of the Diannan small ear pigs.
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spelling doaj-art-3163216c3abb4ab799fe76d3dd35b6612025-08-20T03:32:37ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692025-07-011210.3389/fvets.2025.14820311482031MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolismYuxiao Xie0Yuxiao Xie1Wenjie Cheng2Meilin Hao3Lan-lan Yi4Jun-hong Zhu5Yan-guang Zhao6Sumei Zhao7Yunnan Key Laboratory of Animal Nutrition and Feed Science, Yunnan Agricultural University, Kunming, ChinaCollege of Biology and Agriculture (College of Food Science and Technology), Zunyi Normal College, Zunyi, ChinaYunnan Key Laboratory of Animal Nutrition and Feed Science, Yunnan Agricultural University, Kunming, ChinaCollege of Biology and Agriculture (College of Food Science and Technology), Zunyi Normal College, Zunyi, ChinaYunnan Key Laboratory of Animal Nutrition and Feed Science, Yunnan Agricultural University, Kunming, ChinaYunnan Key Laboratory of Animal Nutrition and Feed Science, Yunnan Agricultural University, Kunming, ChinaShanghai Laboratory Animal Research Center, Shanghai, ChinaYunnan Key Laboratory of Animal Nutrition and Feed Science, Yunnan Agricultural University, Kunming, ChinaIntroductionTo elucidate the role of miRNAs in porcine muscle tissues, this study used Solexa high-throughput sequencing to identify and compare differentially expressed miRNAs in Landrace pigs and the Diannan small ear pigs.MethodsSmall RNA libraries were constructed from high-quality RNAs extracted from the Longissimus dorsi muscle (LDM) muscles of the two breeds of pigs and high-throughput sequencing was performed to identify and compare differentially expressed of miRNAs (DEmiRNAs). The target genes corresponding to the differentially expressed miRNAs were subjected to functional annotation, Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genomes (KEGG) pathway enrichment analysis.Results241 known conserved miRNAs sequences and 20 novel miRNAs in the Diannan small ear pigs library and known conserved miRNAs sequences and 22 novel miRNAs in the Landrace pigs library were identified. It is noteworthy that 14 miRNAs showed significant expression differences between the two pig breeds, and the expression levels of these miRNAs were lower in the Diannan small ear pigs than the Landrace pigs, among which the most significantly difference was miR-27a. GO and KEGG analyses showed that 26 target genes of DEmiRNAs were associated with inositol phosphate metabolism and phosphatidylinositol signalling pathways including INPPL1, INPP5J, INPP5A, INPP5B, INPP4A, INPP4B, INPP1, IMPAD1, DGKZ, CDLPT, CALM1, PLCG1, PLCCD3, PLCB4, PIP4K2A, PIK3R1 and PIK3CB, PIK3CA, ITPKC and ITPK1 genes which may be key genes regulating phosphatidylinositol 4,5-bisphosphate (PIP2), phospholipase C (PLC), inositol triphosphate (IP3), protein kinase C (PKC), calcium (Ca2+) and diacylglycerol (DAG).ConclusionThe findings of this study provide a theoretical framework for a more comprehensive understanding of the biological functions of miRNAs in muscle tissues, and lay a foundation for the discovery and utilisation of high-quality germplasm resources of the Diannan small ear pigs.https://www.frontiersin.org/articles/10.3389/fvets.2025.1482031/fulllongissimus dorsi muscle (LDM)microRNAphosphoinositol metabolismDiannan small ears pigsLandrace pigs
spellingShingle Yuxiao Xie
Yuxiao Xie
Wenjie Cheng
Meilin Hao
Lan-lan Yi
Jun-hong Zhu
Yan-guang Zhao
Sumei Zhao
MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolism
Frontiers in Veterinary Science
longissimus dorsi muscle (LDM)
microRNA
phosphoinositol metabolism
Diannan small ears pigs
Landrace pigs
title MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolism
title_full MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolism
title_fullStr MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolism
title_full_unstemmed MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolism
title_short MicroRNA analysis of porcine muscle tissue involved in phosphoinositol metabolism
title_sort microrna analysis of porcine muscle tissue involved in phosphoinositol metabolism
topic longissimus dorsi muscle (LDM)
microRNA
phosphoinositol metabolism
Diannan small ears pigs
Landrace pigs
url https://www.frontiersin.org/articles/10.3389/fvets.2025.1482031/full
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