ArticlePloS one2019
Analysis of porcine IGF2 gene expression in adipose tissue and its effect on fatty acid composition.
Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 22 citations in OpenAlex.
- Multi-omics characterization identifies conserved candidate gene and reveals breed-specific regulatory mechanisms underlying growth-related traits in pigs.BMC genomics · 2026Article
- Causal variants in animal genomes: approaches to identification, phenotypic impact, and implications for selective breeding.BMC genomics · 2026Review
- Genes Involved in Lipid, Carbohydrate, and Protein Metabolism as Candidates Affecting Beef Flavor.Animals : an open access journal from MDPI · 2026Article
- Evaluation of genetic effects on the fatty acid composition of intramuscular fat and backfat of the endangered Angler Saddleback pig.Archives animal breeding · 2026Article
- Transcription factors and candidate functional SNPs associated with variation in fatty acid composition from skeletal muscle of pigs.Animal genetics · 2025Article
- Paradoxical regulation of IGF2 in promoting lipid metabolism in adipose tissues.Communications biology · 2025Article
- Comprehensive expression analysis of hormone-like substances in the subcutaneous adipose tissue of the common bottlenose dolphin Tursiops truncatus.Scientific reports · 2024Article
- Genome-Wide Association Study and Identification of Candidate Genes for Intramuscular Fat Fatty Acid Composition in Ningxiang Pigs.Animals : an open access journal from MDPI · 2023Article
- The variation of insulin like growth factor 2 maker is associated with growth traits in Thai native (Kradon) pigs.Animal bioscience · 2023Article
- Association of single-nucleotide polymorphisms in dual specificity phosphatase 8 and insulin-like growth factor 2 genes with inosine-5'-monophosphate, inosine, and hypoxanthine contents in chickens.Animal bioscience · 2023Article
- Characterization of fatty acid compositions in longissimus thoracis muscle and identification of candidate gene and SNPs related to polyunsaturated fatty acid in Hu sheep.Journal of animal science · 2023Article
- Loss of Monoallelic Expression ofFrontiers in genetics · 2022Article
- Genetic architecture and major genes for backfat thickness in pig lines of diverse genetic backgrounds.Genetics, selection, evolution : GSE · 2021Article
- Identification of eQTLs associated with lipid metabolism in Longissimus dorsi muscle of pigs with different genetic backgrounds.Scientific reports · 2020Article
- Comparative Transcriptomic Analysis of Subcutaneous Adipose Tissue from Local Pig Breeds.Genes · 2020Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
IGF2:g.3072G>A polymorphism has been described as the causal mutation of a maternally imprinted QTL for muscle growth and fat deposition in pigs. The objective of the current work was to study the association between the IGF2:g.3072G>A polymorphism and the IGF2 gene expression and its effect on fatty acid composition in adipose tissue in different pig genetic backgrounds. A cis-eQTL region associated with the IGF2 mRNA expression in adipose tissue was identified in an eGWAS with 355 animals. The IGF2 gene was located in this genomic interval and IGF2g.3072G>A was the most significant SNP, explaining a 25% of the gene expression variance. Significant associations between IGF2:g.3072G>A polymorphism and oleic (C18:1(n-9); p-value = 4.18x10-07), hexadecanoic (C16:1(n-9); p-value = 4.04x10-07), linoleic (C18:2(n-6); p-value = 6.44x10-09), α-linoleic (C18:3(n-3); p-value = 3.30x10-06), arachidonic (C20:4(n-6); p-value = 9.82x10-08) FAs and the MUFA/PUFA ratio (p-value = 2.51x10-9) measured in backfat were identified. Animals carrying the A allele showed an increase in IGF2 gene expression and higher PUFA and lower MUFA content. However, in additional studies was observed that there could be other proximal genetic variants affecting FA composition in adipose tissue. Finally, no differences in the IGF2 gene expression in adipose tissue were found between heterozygous animals classified according to the IGF2:g.3072G>A allele inherited from the father (APGM or AMGP). However, pyrosequencing analysis revealed that there is imprinting of the IGF2 gene in muscle and adipose tissues, with stronger differences among the paternally and maternally inherited alleles in muscle. Our results suggested that IGF2:g.3072G>A polymorphism plays an important role in the regulation of IGF2 gene expression and can be involved in the fatty acid composition in adipose tissue. In both cases, further studies are still needed to deepen the mechanism of regulation of IGF2 gene expression in adipose tissue and the IGF2 role in FA composition.
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