Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA

Inosine monophosphate (IMP) is a substance that enhances flavor and plays a crucial role in the umami taste of chicken muscle. It is also an influential factor in determining chicken’s economic value. However, the molecular regulatory network underlying the IMP content in muscle remains unclear. To...

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Main Authors: Xinxin He, Jinmei Xu, Yanan Liu, Xing Guo, Wei Wei, Chaohui Xing, Hong Zhang, Hao Wang, Meng Liu, Runshen Jiang
Format: Article
Language:English
Published: MDPI AG 2024-01-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/14/3/402
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author Xinxin He
Jinmei Xu
Yanan Liu
Xing Guo
Wei Wei
Chaohui Xing
Hong Zhang
Hao Wang
Meng Liu
Runshen Jiang
author_facet Xinxin He
Jinmei Xu
Yanan Liu
Xing Guo
Wei Wei
Chaohui Xing
Hong Zhang
Hao Wang
Meng Liu
Runshen Jiang
author_sort Xinxin He
collection DOAJ
description Inosine monophosphate (IMP) is a substance that enhances flavor and plays a crucial role in the umami taste of chicken muscle. It is also an influential factor in determining chicken’s economic value. However, the molecular regulatory network underlying the IMP content in muscle remains unclear. To address this issue, we performed transcriptome sequencing on 20 pectoralis major muscle samples from 120-day-old Guangde feathered-leg chicken and used weighted gene co-expression network analysis (WGCNA) to identify key regulatory factors that influence IMP content. The weighted gene co-expression network was constructed using a total of 16,344 genes, leading to the identification of 20 co-expression gene modules. Among the modules that were identified, it was observed that the purple module (R = −0.51, <i>p</i> = 0.02) showed a significant negative correlation with the IMP content. This suggests that the genes within the purple module had the ability to regulate the IMP content. A total of 68 hub genes were identified in the purple module through gene significance (GS) > 0.2 and module membership (MM) > 0.8. The STRING database was used for a protein–protein interaction (PPI) network of hub genes. Furthermore, troponin I type 1 (<i>TNNI1</i>), myozenin 2 (<i>MYOZ2</i>), myosin light chain 2 regulatory cardiac slow (<i>MYL2</i>), and myosin light chain 3 regulatory cardiac slow (<i>MYL3</i>) involved in the “ATP-dependent activity”, “cAMP signaling pathway” and “cGMP-PKG signaling pathway” were identified as central regulators that contribute to IMP content. These results offer valuable information into the gene expression and regulation that affects IMP content in muscle.
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spelling doaj.art-64e2079d40fc4a4aae15312a6bd5a10f2024-02-09T15:06:30ZengMDPI AGAnimals2076-26152024-01-0114340210.3390/ani14030402Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNAXinxin He0Jinmei Xu1Yanan Liu2Xing Guo3Wei Wei4Chaohui Xing5Hong Zhang6Hao Wang7Meng Liu8Runshen Jiang9College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaCollege of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, ChinaInosine monophosphate (IMP) is a substance that enhances flavor and plays a crucial role in the umami taste of chicken muscle. It is also an influential factor in determining chicken’s economic value. However, the molecular regulatory network underlying the IMP content in muscle remains unclear. To address this issue, we performed transcriptome sequencing on 20 pectoralis major muscle samples from 120-day-old Guangde feathered-leg chicken and used weighted gene co-expression network analysis (WGCNA) to identify key regulatory factors that influence IMP content. The weighted gene co-expression network was constructed using a total of 16,344 genes, leading to the identification of 20 co-expression gene modules. Among the modules that were identified, it was observed that the purple module (R = −0.51, <i>p</i> = 0.02) showed a significant negative correlation with the IMP content. This suggests that the genes within the purple module had the ability to regulate the IMP content. A total of 68 hub genes were identified in the purple module through gene significance (GS) > 0.2 and module membership (MM) > 0.8. The STRING database was used for a protein–protein interaction (PPI) network of hub genes. Furthermore, troponin I type 1 (<i>TNNI1</i>), myozenin 2 (<i>MYOZ2</i>), myosin light chain 2 regulatory cardiac slow (<i>MYL2</i>), and myosin light chain 3 regulatory cardiac slow (<i>MYL3</i>) involved in the “ATP-dependent activity”, “cAMP signaling pathway” and “cGMP-PKG signaling pathway” were identified as central regulators that contribute to IMP content. These results offer valuable information into the gene expression and regulation that affects IMP content in muscle.https://www.mdpi.com/2076-2615/14/3/402chickenWGCNAIMP contenthub genes
spellingShingle Xinxin He
Jinmei Xu
Yanan Liu
Xing Guo
Wei Wei
Chaohui Xing
Hong Zhang
Hao Wang
Meng Liu
Runshen Jiang
Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA
Animals
chicken
WGCNA
IMP content
hub genes
title Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA
title_full Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA
title_fullStr Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA
title_full_unstemmed Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA
title_short Explorations on Key Module and Hub Genes Affecting IMP Content of Chicken Pectoralis Major Muscle Based on WGCNA
title_sort explorations on key module and hub genes affecting imp content of chicken pectoralis major muscle based on wgcna
topic chicken
WGCNA
IMP content
hub genes
url https://www.mdpi.com/2076-2615/14/3/402
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