scholarly journals Integrative ATAC-seq and RNA-seq Analysis of the Longissimus Muscle of Luchuan and Duroc Pigs

2021 ◽  
Vol 8 ◽  
Author(s):  
Weiwei Miao ◽  
Zeqiang Ma ◽  
Zhanyang Tang ◽  
Lin Yu ◽  
Siqi Liu ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Transcription Factors ◽  
Signaling Pathway ◽  
Growth And Development ◽  
Muscle Development ◽  
Muscle Fibers ◽  
Muscle Growth ◽  
Rna Seq ◽  
Accessible Chromatin

Luchuan pig is a typical obese pig breed in China, and the diameter and area of its longissimus dorsi muscle fibers are significantly smaller than those of Duroc (lean) pig. Skeletal muscle fiber characteristics are related to meat quality of livestock. There is a significant correlation between the quality of different breeds of pork and the characteristics of muscle fiber, which is an important factor affecting the quality of pork. The diameter and area of muscle fibers are related to muscle growth and development. Therefore, we used the assay for transposase-accessible chromatin using sequencing (ATAC-seq) and RNA sequencing (RNA-seq) analysis to investigate the potential mechanism underlying the difference in skeletal muscle growth and development between the two types of pigs. First, transposase-accessible chromatin was analyzed to map the landscape of open chromatin regions and transcription factor binding sites. We identified several transcription factors that potentially affected muscle growth and development, including TFAP4, MAX, NHLH1, FRX5, and TGIF1. We also found that transcription factors with basic helix-loop-helix structures had a preference for binding to genes involved in muscle development. Then, by integrating ATAC-seq and RNA-seq, we found that the Wnt signaling pathway, the mTOR signaling pathway, and other classical pathways regulate skeletal muscle development. In addition, some pathways that might regulate skeletal muscle growth, such as parathyroid hormone synthesis, secretion, and action, synthesis and degradation of ketone bodies, and the thyroid hormone signaling pathway, which were significantly enriched. After further study, we identified a number of candidate genes (ASNS, CARNS1, G0S2, PPP1R14C, and SH3BP5) that might be associated with muscle development. We also found that the differential regulation of chromatin openness at the level of some genes was contrary to the differential regulation at the level of transcription, suggesting that transcription factors and transcriptional repressors may be involved in the regulation of gene expression. Our study provided an in-depth understanding of the mechanism behind the differences in muscle fibers from two species of pig and provided an important foundation for further research on improving the quality of pork.

Integrated analysis of miRNA-mediated ceRNA networks in ovine skeletal muscle development

2020 ◽  
Author(s):  
Tianpei Shi ◽  
Xinyue WANG ◽  
Zhida ZHAO ◽  
Wenping HU ◽  
Li ZHANG
Keyword(s):  
Skeletal Muscle ◽  
Transcription Factors ◽  
Muscle Development ◽  
Muscle Growth ◽  
Growth Potential ◽  
Regulatory Role ◽  
Integrated Analysis ◽  
Interaction Patterns ◽  
Rna Seq ◽  
Skeletal Muscle Development

Abstract Background: The embryo stage is a key period for sheep skeletal muscle growth and development. Proliferation, differentiation, and hypertrophy of fibers affect muscle growth potential directly. Analyzing transcriptome data is of great significance for revealing important time nodes of fetus muscle development and screening related regulation factors. Muscle development is a complex biological process, including a intricate network of multiple factor interactions. Among them, non-coding RNA, especially miRNA-mediated regulation, plays a fine regulatory role. The purpose of this study was to investigate the important genes and transcripts involved in the genetic mechanism of embryos skeletal muscle development in late pregnancy. Results: Herein we did a small RNA sequencing(RNA-Seq) of embryo at 85 days (D85N), 105 days (D105N) and 135 days(D135N), then performed bioinformatic analysis in order to identify the miRNA-mediated co-expression networks. Our findings identified 505 DE-miRNAs. Integrating the current miRNA data and the previously obtained lncRNA data, multiple networks were constructed, including miRNA-mRNA, miRNA-target gene(TG)-pathway, lncRNA-miRNA-mRNA, and miRNA-TG-transcription factor (TF) network. The results showed that the miRNA-mRNA network and lncRNA-miRNA-mRNA network identified three important lncRNAs (MSTRG.3533, MSTRG.4324, and MSTRG.1470) and three miRNAs(miR-493-3p, miR-3959-3p and miR-410-5p). The four genes ( TEAD1 , ZBTB34 , GSK3B, and POGLUT1 ) and three transcription factors (C / EBPbeta, TFIID, and PR B) play a key regulatory role in the miRNA-TG-TF network. Notably, a similar trend of gene expression was reported by RT-qPCR for RNA-seq data. Conclusions: This study identified three miRNAs, three lncRNAs, four genes, and three transcription factors, and revealed their crucial role in fetal fibrogenesis and lipid metabolism. It also shows that D105N is a pivotal turning point from myotube differentiation to fiber hypertrophy. These findings provide valuable references for network interaction patterns, which helps to evaluate the biological significance of skeletal muscle in the late development stage.

scholarly journals Skeletal muscle development in vertebrate animals

2015 ◽  
Vol 1 (2) ◽  
pp. 139-148
Author(s):  
Md Shahjahan
Keyword(s):  
Skeletal Muscle ◽  
Muscle Development ◽  
Muscle Fibers ◽  
Muscle Growth ◽  
Paraxial Mesoderm ◽  
Meat Production ◽  
Lineage Specification ◽  
Proliferation And Differentiation ◽  
Axial Musculature ◽  
Postnatal Stage

This review covers the pre- and post-natal development of skeletal muscle of vertebrate animals with cellular and molecular levels. The formation of skeletal muscle initiates from paraxial mesoderm during embryogenesis of individuals which develops somites and subsequently forms dermomyotome derived myotome to give rise axial musculature. This process (myogenesis) includes stem and progenitor cell maintenance, lineage specification, and terminal differentiation to form myofibrils consequent muscle fibers which control muscle mass and its multiplication. The main factors of muscle growth are proliferation and differentiation of myogenic cells in prenatal stage and also the growth of satellite cells at postnatal stage. There is no net increase in the number of muscle fibers in vertebrate animals after hatch or birth except fish. The development of muscle is characterized by hyperplasia and hypertrophy in prenatal and postnatal stages of individuals, respectively, through Wnt signalling pathway including environment, nutrition, sex, feed, growth and myogenic regulatory factors. Therefore further studies could elucidate new growth related genes, markers and factors to enhance meat production and enrich knowledge on muscle growth.Asian J. Med. Biol. Res. June 2015, 1(2): 139-148

scholarly journals The Landscape of Chromatin Accessibility in Skeletal Muscle During Embryonic Development in Pigs

2020 ◽  
Author(s):  
Jingwei Yue ◽  
Xinhua Hou ◽  
Xin Liu ◽  
Ligang Wang ◽  
Hongmei Gao ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Transcription Factors ◽  
Embryonic Development ◽  
Muscle Development ◽  
Chromatin Accessibility ◽  
Regulatory Role ◽  
Rna Seq ◽  
Skeletal Muscle Development ◽  
Embryonic Muscle ◽  
Embryonic Muscle Development

Abstract Background: The development of skeletal muscle during the embryonic stage in pigs is precisely regulated by transcriptional regulation, which depends on chromatin accessibility. However, how chromatin accessibility plays a regulatory role during embryonic skeletal muscle development in pigs has not been reported. To gain insight into the landscape of chromatin accessibility and the associated genome-wide transcriptome during embryonic muscle development, we performed ATAC-seq and RNA-seq on skeletal muscle of pig embryos at 45, 70 and 100 days post coitus (dpc). Results: In total, 21638, 35447 and 60181 unique regions (or peaks) were found across 45 dpc (LW45), 70 dpc (LW70) and 100 dpc (LW100) embryos, respectively. More than 91% of peaks were annotated within -1 kb to 100 bp of transcription start sites (TSSs). First, widespread increases in specific accessible chromatin regions (ACRs) from 45 to 100 dpc embryos suggested that the regulatory mechanisms became increasingly complicated during embryonic development. Second, the findings of integrated ATAC-seq and RNA-seq analyses showed that not only the numbers but also the peak intensities of ACRs could control the expression of associated genes. Finally, motif screening of stage-specific ACRs revealed some transcription factors that regulated muscle development-related genes, such as MyoD, Mef2c, Mef2d and Pax7. Several potential transcriptional repressors, including E2F6, GRHL2, OTX2 and CTCF, were identified among those genes that exhibited different change trends between the ATAC-seq and RNA-seq data. Conclusions: This work indicates that chromatin accessibility plays an important regulatory role in the embryonic muscle development of pigs and regulates the temporal and spatial expression patterns of key genes in muscle development by influencing the binding of transcription factors. Our results contribute to a better understanding of the regulatory dynamics of genes involved in pig embryonic skeletal muscle development.

scholarly journals Poor maternal nutrition during gestation in sheep alters prenatal muscle growth and development in offspring

2019 ◽  
Vol 98 (1) ◽  
Author(s):  
Mary C Gauvin ◽  
Sambhu M Pillai ◽  
Sarah A Reed ◽  
John R Stevens ◽  
Maria L Hoffman ◽  
...  
Keyword(s):  
Growth And Development ◽  
Muscle Development ◽  
Maternal Nutrition ◽  
Maternal Diet ◽  
Muscle Growth ◽  
Rna Seq ◽  
Triceps Brachii ◽  
Cross Sectional ◽  
Over Time ◽  
Time Point

Abstract Poor maternal nutrition during gestation can have immediate and life-long negative effects on offspring growth and health. In livestock, this leads to reduced product quality and increased costs of production. Based on previous evidence that both restricted- and overfeeding during gestation decrease offspring muscle growth and alter metabolism postnatally, we hypothesized that poor maternal nutrition during gestation would reduce the growth and development of offspring muscle prenatally, reduce the number of myogenic progenitor cells, and result in changes in the global expression of genes involved in prenatal muscle development and function. Ewes were fed a control (100% NRC)-, restricted (60% NRC)-, or overfed (140% NRC) diet beginning on day 30 of gestation until days 45, 90, and 135 of gestation or until parturition. At each time point fetuses and offspring (referred to as CON, RES, and OVER) were euthanized and longissimus dorsi (LM), semitendinosus (STN), and triceps brachii (TB) were collected at each time point for histological and RNA-Seq analysis. In fetuses and offspring, we did not observe an effect of diet on cross-sectional area (CSA), but CSA increased over time (P < 0.05). At day 90, RES and OVER had reduced secondary:primary muscle fiber ratios in LM (P < 0.05), but not in STN and TB. However, in STN and TB percent PAX7-positive cells were decreased compared with CON (P < 0.05). Maternal diet altered LM mRNA expression of 20 genes (7 genes downregulated in OVER and 2 downregulated in RES compared with CON; 5 downregulated in OVER compared with RES; false discovery rate (FDR)-adj. P < 0.05). A diet by time interaction was not observed for any genes in the RNA-Seq analysis; however, 2,205 genes were differentially expressed over time between days 90 and 135 and birth (FDR-adj. P < 0.05). Specifically, consistent with increased protein accretion, changes in muscle function, and increased metabolic activity during myogenesis, changes in genes involved in cell cycle, metabolic processes, and protein synthesis were observed during fetal myogenesis. In conclusion, poor maternal nutrition during gestation contributes to altered offspring muscle growth during early fetal development which persists throughout the fetal stage. Based on muscle-type-specific effects of maternal diet, it is important to evaluate more than one type of muscle to fully elucidate the effects of maternal diet on offspring muscle development.

scholarly journals The landscape of chromatin accessibility in skeletal muscle during embryonic development in pigs

2021 ◽  
Author(s):  
Jingwei Yue ◽  
Xinhua Hou ◽  
Xin Liu ◽  
Ligang Wang ◽  
Hongmei Gao ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Transcription Factors ◽  
Embryonic Development ◽  
Muscle Development ◽  
Expression Patterns ◽  
Chromatin Accessibility ◽  
Rna Seq ◽  
Transcription Start Sites ◽  
Embryonic Muscle ◽  
Embryonic Muscle Development

Abstract Background: The development of skeletal muscle during the embryonic stage in pigs is precisely regulated by transcriptional mechanisms, which depends on chromatin accessibility. However, the landscape of chromatin accessibility in skeletal muscle during embryonic development in pigs has not been reported. To gain insight into the landscape of chromatin accessibility and the associated genome-wide transcriptome during embryonic muscle development, we performed ATAC-seq and RNA-seq on skeletal muscle of pig embryos at 45, 70 and 100 days post coitus (dpc).Results: In total, 21638, 35447 and 60181 unique regions (or peaks) were found across 45 dpc (LW45), 70 dpc (LW70) and 100 dpc (LW100) embryos, respectively. More than 91% of peaks were annotated within -1 kb to 100 bp of transcription start sites (TSSs). First, widespread increases in specific accessible chromatin regions (ACRs) from 45 to 100 dpc embryos suggested that the regulatory mechanisms became increasingly complicated during embryonic development. Second, the findings of integrated ATAC-seq and RNA-seq analyses showed that not only the numbers but also the peak intensities of ACRs could control the expression of associated genes. Finally, motif screening of stage-specific ACRs revealed some transcription factors that regulated muscle development-related genes, such as MyoD, Mef2c, and Mef2d. Motif screening of DPI of common peaks detected that a potential transcriptional repressor, namely CTCF, was identified among those genes that exhibited different change trends between the ATAC-seq and RNA-seq data.Conclusions: This work indicates that chromatin accessibility plays an important regulatory role in the embryonic muscle development of pigs and regulates the temporal and spatial expression patterns of key genes in muscle development by influencing the binding of transcription factors. Our results contribute to a better understanding of the regulatory dynamics of genes involved in pig embryonic skeletal muscle development.

scholarly journals Comparative Transcriptome Profiling of Skeletal Muscle from Black Muscovy Duck at Different Growth Stages Using RNA-seq

Genes ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 1228
Author(s):  
Zhigang Hu ◽  
Junting Cao ◽  
Guangyu Liu ◽  
Huilin Zhang ◽  
Xiaolin Liu
Keyword(s):  
Skeletal Muscle ◽  
Candidate Genes ◽  
Growth And Development ◽  
Developmental Stages ◽  
Muscle Growth ◽  
Growth Stages ◽  
Muscovy Duck ◽  
Rna Seq ◽  
Muscovy Ducks ◽  
Different Growth Stages

In China, the production for duck meat is second only to that of chicken, and the demand for duck meat is also increasing. However, there is still unclear on the internal mechanism of regulating skeletal muscle growth and development in duck. This study aimed to identity candidate genes related to growth of duck skeletal muscle and explore the potential regulatory mechanism. RNA-seq technology was used to compare the transcriptome of skeletal muscles in black Muscovy ducks at different developmental stages (day 17, 21, 27, 31, and 34 of embryos and postnatal 6-month-olds). The SNPs and InDels of black Muscovy ducks at different growth stages were mainly in “INTRON”, “SYNONYMOUS_CODING”, “UTR_3_PRIME”, and “DOWNSTREAM”. The average number of AS in each sample was 37,267, mainly concentrated in TSS and TTS. Besides, a total of 19 to 5377 DEGs were detected in each pairwise comparison. Functional analysis showed that the DEGs were mainly involved in the processes of cell growth, muscle development, and cellular activities (junction, migration, assembly, differentiation, and proliferation). Many of DEGs were well known to be related to growth of skeletal muscle in black Muscovy duck, such as MyoG, FBXO1, MEF2A, and FoxN2. KEGG pathway analysis identified that the DEGs were significantly enriched in the pathways related to the focal adhesion, MAPK signaling pathway and regulation of the actin cytoskeleton. Some DEGs assigned to these pathways were potential candidate genes inducing the difference in muscle growth among the developmental stages, such as FAF1, RGS8, GRB10, SMYD3, and TNNI2. Our study identified several genes and pathways that may participate in the regulation of skeletal muscle growth in black Muscovy duck. These results should serve as an important resource revealing the molecular basis of muscle growth and development in duck.

scholarly journals The landscape of chromatin accessibility in skeletal muscle during embryonic development in pigs

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jingwei Yue ◽  
Xinhua Hou ◽  
Xin Liu ◽  
Ligang Wang ◽  
Hongmei Gao ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Transcription Factors ◽  
Embryonic Development ◽  
Muscle Development ◽  
Chromatin Accessibility ◽  
Regulatory Role ◽  
Rna Seq ◽  
Skeletal Muscle Development ◽  
Embryonic Muscle ◽  
Embryonic Muscle Development

Abstract Background The development of skeletal muscle in pigs during the embryonic stage is precisely regulated by transcriptional mechanisms, which depend on chromatin accessibility. However, how chromatin accessibility plays a regulatory role during embryonic skeletal muscle development in pigs has not been reported. To gain insight into the landscape of chromatin accessibility and the associated genome-wide transcriptome during embryonic muscle development, we performed ATAC-seq and RNA-seq analyses of skeletal muscle from pig embryos at 45, 70 and 100 days post coitus (dpc). Results In total, 21,638, 35,447 and 60,181 unique regions (or peaks) were found across the embryos at 45 dpc (LW45), 70 dpc (LW70) and 100 dpc (LW100), respectively. More than 91% of the peaks were annotated within − 1 kb to 100 bp of transcription start sites (TSSs). First, widespread increases in specific accessible chromatin regions (ACRs) from embryos at 45 to 100 dpc suggested that the regulatory mechanisms became increasingly complicated during embryonic development. Second, the findings from integrated ATAC-seq and RNA-seq analyses showed that not only the numbers but also the intensities of ACRs could control the expression of associated genes. Moreover, the motif screening of stage-specific ACRs revealed some transcription factors that regulate muscle development-related genes, such as MyoG, Mef2c, and Mef2d. Several potential transcriptional repressors, including E2F6, OTX2 and CTCF, were identified among the genes that exhibited different regulation trends between the ATAC-seq and RNA-seq data. Conclusions This work indicates that chromatin accessibility plays an important regulatory role in the embryonic muscle development of pigs and regulates the temporal and spatial expression patterns of key genes in muscle development by influencing the binding of transcription factors. Our results contribute to a better understanding of the regulatory dynamics of genes involved in pig embryonic skeletal muscle development.

scholarly journals Analysis of long intergenic non-coding RNAs transcriptomic profiling in skeletal muscle growth during porcine embryonic development

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Wenjuan Zhao ◽  
Zijing Li ◽  
Quan Liu ◽  
Su Xie ◽  
Mengxun Li ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Signaling Pathway ◽  
Muscle Development ◽  
Target Genes ◽  
Muscle Growth ◽  
Skeletal Muscle Development ◽  
Protein Coding ◽  
Development Stages ◽  
Non Coding Rnas ◽  
Embryonic Muscle

AbstractSkeletal muscle growth plays a critical role during porcine muscle development stages. Genome-wide transcriptome analysis reveals that long intergenic non-coding RNAs (lincRNAs) are implicated as crucial regulator involving in epigenetic regulation. However, comprehensive analysis of lincRNAs in embryonic muscle development stages remain still elusive. Here, we investigated the transcriptome profiles of Duroc embryonic muscle tissues from days 33, 65, and 90 of gestation using RNA-seq, and 228 putative lincRNAs were identified. Moreover, these lincRNAs exhibit the characteristics of shorter transcripts length, longer exons, less exon numbers and lower expression level compared with protein-coding transcripts. Expression profile analysis showed that a total of 120 lincRNAs and 2638 mRNAs were differentially expressed. In addition, we also performed quantitative trait locus (QTL) mapping analysis for differentially expressed lincRNAs (DE lincRNAs), 113 of 120 DE lincRNAs were localized on 2200 QTLs, we observed many QTLs involved in growth and meat quality traits. Furthermore, we predicted potential target genes of DE lincRNAs in cis or trans regulation. Gene ontology and pathway analysis reveals that potential targets of DE lincRNAs mostly were enriched in the processes and pathways related to tissue development, MAPK signaling pathway, Wnt signaling pathway, TGF-beta signaling pathway and insulin signaling pathway, which involved in skeletal muscle physiological functions. Based on cluster analysis, co-expression network analysis of DE lincRNAs and their potential target genes indicated that DE lincRNAs highly regulated protein-coding genes associated with skeletal muscle development. In this study, many of the DE lincRNAs may play essential roles in pig muscle growth and muscle mass. Our study provides crucial information for further exploring the molecular mechanisms of lincRNAs during skeletal muscle development.

scholarly journals Analysis of Long Intergenic Non-Coding RNAs Transcriptomic Profiling in Skeletal Muscle Growth During Porcine Embryonic Development

2021 ◽  
Author(s):  
Wenjuan Zhao ◽  
Zijing Li ◽  
Quan Liu ◽  
Su Xie ◽  
Mengxun Li ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Signaling Pathway ◽  
Muscle Development ◽  
Target Genes ◽  
Muscle Growth ◽  
Skeletal Muscle Development ◽  
Protein Coding ◽  
Development Stages ◽  
Non Coding Rnas ◽  
Embryonic Muscle

Abstract Skeletal muscle growth plays a critical role during porcine muscle development stages. Genome-wide transcriptome analysis reveals that thousands of long intergenic non-coding RNAs (lincRNAs) have been identified in various species and implicated as crucial regulator involving in epigenetic regulation. However, comprehensive analysis of lincRNAs in embryonic muscle development stages remain still elusive. Here, we investigated the transcriptome profiles of duroc embryonic muscle tissues from days 33, 65, and 90 of gestation using RNA-seq, there were 228 putative lincRNAs identified. Moreover, these lincRNAs exhibit the characteristics of shorter transcripts length, longer exons, less exon numbers and lower expression level compared with protein-coding transcripts. Differential expression analysis showed that a total of 91 lincRNAs and 2638 mRNAs were differentially expressed. In addition, we also performed quantitative trait locus (QTL) mapping analysis for DE lincRNAs, 113 of 120 DE lincRNAs were localized on 2200 QTLs, we observed many QTLs involved in growth and meat quality traits. Furthermore, we predicted potential target genes of DE lincRNAs in cis or trans regulation. Gene ontology and pathway analysis reveals that potential targets of DE lincRNAs mostly were enriched in the processes and pathways related to tissue development, MAPK signaling pathway, Wnt signaling pathway, TGF-beta signaling pathway and insulin signaling pathway, which involved in skeletal muscle physiological functions. Based on cluster analysis, a co-expression network analysis of DE lincRNAs and their potential target genes indicated that DE lincRNAs highly regulated protein-coding genes associated with skeletal muscle development. In this study, many of the DE lincRNAs identified may play essential roles in pig muscle growth and muscle mass. Our study provides crucial information for exploring further the molecular mechanisms of lincRNAs during skeletal muscle development.

Transcriptome profile of skeletal muscle at different developmental stages in Large White and Mashen pigs

2019 ◽  
Vol 99 (4) ◽  
pp. 867-880
Author(s):  
Xiaohong Guo ◽  
Wanfeng Zhang ◽  
Meng Li ◽  
Pengfei Gao ◽  
Wei Hei ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Candidate Genes ◽  
Growth And Development ◽  
Muscle Development ◽  
Developmental Stages ◽  
Muscle Growth ◽  
Individual Growth ◽  
Growth Stages ◽  
Large White ◽  
Skeletal Muscle Growth

From the perspectives of promoting individual growth and development, increasing pork yield, and improving feed utilization, it is desirable to screen candidate genes underlying pig muscle growth and regulation. In this study, we investigated transcriptome differences at 1, 90, and 180 d of age in Large White and Mashen pigs, characterized differentially expressed genes (DEGs), and screened candidate genes affecting skeletal muscle growth and development. RNA-seq was applied to analyze the transcriptome of the longissimus dorsi (LD) in the two breeds. In LD samples from the two breeds at three growth stages, 7215, 6332, 237, 3935, 3404, and 846 DEGs were obtained for L01 vs. L90, L01 vs. L180, L90 vs. L180, MS01 vs. MS90, MS01 vs. MS180, and MS90 vs. MS180, respectively. Significant tendencies in DEG expression could be grouped into eight profiles. Based on the functional analysis of DEGs, 16 candidate genes related to skeletal muscle growth and development were identified, including PCK2, GNAS, ADCY2, PRKAB1, PRKAB2, PRKAG1, PRKAG2, PHKA1, PHKA2, PHKG1, PHKG2, ITPR3, IGF1R, FGFR4, FGF1, and FGF18. The results of this study thus provide a theoretical basis for the mechanisms and candidate genes underlying skeletal muscle development in pigs.

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