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Hou X, Zhang R, Yang M, Niu N, Wu J, Shu Z, Zhang P, Shi L, Zhao F, Wang L, Wang L, Zhang L. Metabolomics and lipidomics profiles related to intramuscular fat content and flavor precursors between Laiwu and Yorkshire pigs. Food Chem 2023; 404:134699. [DOI: 10.1016/j.foodchem.2022.134699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 10/08/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
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Guo X, Li T, Lu D, Yamada T, Li X, Bao S, Liu J, Borjigin G, Cang M, Tong B. Effects of the Expressions and Variants of the CAST Gene on the Fatty Acid Composition of the Longissimus Thoracis Muscle of Grazing Sonid Sheep. Animals (Basel) 2023; 13:ani13020195. [PMID: 36670735 PMCID: PMC9855194 DOI: 10.3390/ani13020195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/20/2022] [Accepted: 12/31/2022] [Indexed: 01/06/2023] Open
Abstract
Fatty acid (FA) composition has an important impact on the nutrition and flavor of meat, and on consumer health, and is receiving more attention in the sheep industry. This study aimed to evaluate the relationship between the expression levels of the CAST gene and the FA composition in the longissimus thoracis (LL) muscle, to identify novel variants of CAST, and to perform association analysis with the FA composition in grazing Sonid lambs. The correlation results showed that high expression levels of CAST are correlated with better FA compositions and classes in LL. For association studies, the results showed that c.1210C>T and c.1437G>A in LD-M, and c.2097C>T mutations are associated with some compositions and classes of FA in the LL of grazing Sonid sheep. Two missense c.646G>C (G216R) and c.1210C>T (R404C) mutations were predicted to influence the Calpain_inhib domains of CAST. Thus, the correlation results and associated mutations are expected to be genetic selection markers for the FA composition and meat quality of grazing Sonid lamb muscle and provide new insights into sheep meat quality traits influenced by the ovine CAST gene.
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Affiliation(s)
- Xin Guo
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010021, China
| | - Terigele Li
- Inner Mongolia Agriculture Animal Husbandry Fishery and Biology Experiment Research Centre, Inner Mongolia Agricultural University, Hohhot 010010, China
| | - Datong Lu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010021, China
| | - Takahisa Yamada
- Department of Agrobiology, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
| | - Xihe Li
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010021, China
| | - Siqin Bao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010021, China
| | - Jiasen Liu
- Institute of Animal Science, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot 010031, China
| | - Gerelt Borjigin
- College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010010, China
| | - Ming Cang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010021, China
- Correspondence: (M.C.); (B.T.)
| | - Bin Tong
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010021, China
- Correspondence: (M.C.); (B.T.)
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Balatsky VN, Oliinychenko YK, Saienko AM, Buslyk TV, Bankovska IB, Peka MY, Doran O. Associations of Polymorphisms in Leptin and Leptin Receptor Genes with Meat Quality in Pigs of the Ukrainian Large White Breed. CYTOL GENET+ 2022. [DOI: 10.3103/s0095452722060020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen J, You R, Lv Y, Liu H, Yang G. Conjugated linoleic acid regulates adipocyte fatty acid binding protein expression via peroxisome proliferator-activated receptor α signaling pathway and increases intramuscular fat content. Front Nutr 2022; 9:1029864. [PMID: 36523338 PMCID: PMC9745092 DOI: 10.3389/fnut.2022.1029864] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 10/19/2022] [Indexed: 06/22/2024] Open
Abstract
Intramuscular fat (IMF) is correlated positively with meat tenderness, juiciness and taste that affected sensory meat quality. Conjugated linoleic acid (CLA) has been extensively researched to increase IMF content in animals, however, the regulatory mechanism remains unclear. Adipocyte fatty acid binding protein (A-FABP) gene has been proposed as candidates for IMF accretion. The purpose of this study is to explore the molecular regulatory pathways of CLA on intramuscular fat deposition. Here, our results by cell lines indicated that CLA treatment promoted the expression of A-FABP through activated the transcription factor of peroxisome proliferator-activated receptor α (PPARα). Moreover, in an animal model, we discovered that dietary supplemental with CLA significantly enhanced IMF deposition by up-regulating the mRNA and protein expression of PPARα and A-FABP in the muscle tissues of mice. In addition, our current study also demonstrated that dietary CLA increased mRNA expression of genes and enzymes involved in fatty acid synthesis and lipid metabolism the muscle tissues of mice. These findings suggest that CLA mainly increases the expression of A-FABP through PPARα signaling pathway and regulates the expression of genes and enzymes related to IMF deposition, thus increasing IMF content. These results contribute to better understanding the molecular mechanism of IMF accretion in animals for the improvement of meat quality.
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Affiliation(s)
| | | | | | | | - Guoqing Yang
- Laboratory of Animal Gene Engineering, College of Life Sciences, Henan Agricultural University, Zhengzhou, China
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Malgwi IH, Halas V, Grünvald P, Schiavon S, Jócsák I. Genes Related to Fat Metabolism in Pigs and Intramuscular Fat Content of Pork: A Focus on Nutrigenetics and Nutrigenomics. Animals (Basel) 2022; 12:ani12020150. [PMID: 35049772 PMCID: PMC8772548 DOI: 10.3390/ani12020150] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/29/2021] [Accepted: 01/05/2022] [Indexed: 02/04/2023] Open
Abstract
Simple Summary The intramuscular fat (IMF) or marbling is an essential pork sensory quality that influences the preference of the consumers and premiums for pork. IMF is the streak of visible fat intermixed with the lean within a muscle fibre and determines sensorial qualities of pork such as flavour, tenderness and juiciness. Fat metabolism and IMF development are controlled by dietary nutrients, genes, and their metabolic pathways in the pig. Nutrigenetics explains how the genetic make-up of an individual pig influences the pig’s response to dietary nutrient intake. Differently, nutrigenomics is the analysis of how the entire genome of an individual pig is affected by dietary nutrient intake. The knowledge of nutrigenetics and nutrigenomics, when harmonized, is a powerful tool in estimating nutrient requirements for swine and programming dietary nutrient supply according to an individual pig’s genetic make-up. The current paper aimed to highlight the roles of nutrigenetics and nutrigenomics in elucidating the underlying mechanisms of fat metabolism and IMF deposition in pigs. This knowledge is essential in redefining nutritional intervention for swine production and the improvement of some economically important traits such as growth performance, backfat thickness, IMF accretion, disease resistance etc., in animals. Abstract Fat metabolism and intramuscular fat (IMF) are qualitative traits in pigs whose development are influenced by several genes and metabolic pathways. Nutrigenetics and nutrigenomics offer prospects in estimating nutrients required by a pig. Application of these emerging fields in nutritional science provides an opportunity for matching nutrients based on the genetic make-up of the pig for trait improvements. Today, integration of high throughput “omics” technologies into nutritional genomic research has revealed many quantitative trait loci (QTLs) and single nucleotide polymorphisms (SNPs) for the mutation(s) of key genes directly or indirectly involved in fat metabolism and IMF deposition in pigs. Nutrient–gene interaction and the underlying molecular mechanisms involved in fatty acid synthesis and marbling in pigs is difficult to unravel. While existing knowledge on QTLs and SNPs of genes related to fat metabolism and IMF development is yet to be harmonized, the scientific explanations behind the nature of the existing correlation between the nutrients, the genes and the environment remain unclear, being inconclusive or lacking precision. This paper aimed to: (1) discuss nutrigenetics, nutrigenomics and epigenetic mechanisms controlling fat metabolism and IMF accretion in pigs; (2) highlight the potentials of these concepts in pig nutritional programming and research.
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Affiliation(s)
- Isaac Hyeladi Malgwi
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padua, Viale dell’ Università 16, 35020 Padova, Italy;
- Correspondence: ; Tel.: +39-33-17566768
| | - Veronika Halas
- Department of Farm Animal Nutrition, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, Guba Sándor Utca 40, 7400 Kaposvár, Hungary; (V.H.); (P.G.)
| | - Petra Grünvald
- Department of Farm Animal Nutrition, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, Guba Sándor Utca 40, 7400 Kaposvár, Hungary; (V.H.); (P.G.)
| | - Stefano Schiavon
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padua, Viale dell’ Università 16, 35020 Padova, Italy;
| | - Ildikó Jócsák
- Institute of Agronomy, Kaposvár Campus, Hungarian University of Agriculture and Life Sciences, Guba Sándor Utca 40, 7400 Kaposvár, Hungary;
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Balatsky VN, Oliinychenko YK, Buslyk TV, Bankovska IB, Korinnyi SN, Saienko AM, Pochernyaev KF. Associations of QTL Region Genes of Chromosome 2 with Meat Quality Traits and Productivity of the Ukrainian Large White Pig Breed. CYTOL GENET+ 2021. [DOI: 10.3103/s0095452721010023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li B, Feng C, Zhu S, Zhang J, Irwin DM, Zhang X, Wang Z, Zhang S. Identification of Candidate Circular RNAs Underlying Intramuscular Fat Content in the Donkey. Front Genet 2020; 11:587559. [PMID: 33424924 PMCID: PMC7793956 DOI: 10.3389/fgene.2020.587559] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 11/18/2020] [Indexed: 12/23/2022] Open
Abstract
Intramuscular fat (IMF) content is a crucial indicator of meat quality. Circular RNAs (circRNAs) are a large class of endogenous RNAs that are involved in many physiological processes. However, the expression and function of circRNA in IMF in the donkey remains unresolved. Here we performed an expression profiling of circRNAs in the donkey longissimus dorsi muscle and identified 12,727 candidate circRNAs. Among these, 70% were derived from the exons of protein genes. Furthermore, a total of 127 differentially expressed (DE) circRNAs were identified in high (H) and low (L) IMF content groups, including 63 upregulated and 64 downregulated circRNAs. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of the host genes of the DE circRNAs showed that the host genes were enriched in lipid metabolism related GO terms (e.g., fatty acid beta-oxidation using acyl-CoA dehydrogenase and MLL3/4 complex), and signaling pathways (e.g., TGF-beta and lysine degradation signaling pathway). Further analyses indicated that 127 DE circRNAs were predicted to potentially interact with miRNAs, leading to the construction of circRNA-miRNA regulatory network. Multiple circRNAs can potentially function as sponges of miRNAs that regulate the differentiation of adipocytes. Our results provide valuable expression profile information for circRNA in the donkey and new insight into the regulatory mechanisms of circRNAs in the regulation of IMF content.
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Affiliation(s)
- Bojiang Li
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Chunyu Feng
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Shiyu Zhu
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Junpeng Zhang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - David M Irwin
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Xiaoying Zhang
- Liaoning Province Engineering Center of Modern Agricultural Production Base, Shenyang, China
| | - Zhe Wang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
| | - Shuyi Zhang
- College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China
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Zappaterra M, Gioiosa S, Chillemi G, Zambonelli P, Davoli R. Muscle transcriptome analysis identifies genes involved in ciliogenesis and the molecular cascade associated with intramuscular fat content in Large White heavy pigs. PLoS One 2020; 15:e0233372. [PMID: 32428048 PMCID: PMC7237010 DOI: 10.1371/journal.pone.0233372] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/04/2020] [Indexed: 02/07/2023] Open
Abstract
Intramuscular fat content (IMF) is a complex trait influencing the technological and sensorial features of meat products and determining pork quality. Thus, we aimed at analyzing through RNA-sequencing the Semimembranosus muscle transcriptome of Italian Large White pigs to study the gene networks associated with IMF deposition. Two groups of samples were used; each one was composed of six unrelated pigs with extreme and divergent IMF content (0.67 ± 0.09% in low IMF vs. 6.81 ± 1.17% in high IMF groups) that were chosen from 950 purebred individuals. Paired-end RNA sequences were aligned to Sus scrofa genome assembly 11.1 and gene counts were analyzed using WGCNA and DeSeq2 packages in R environment. Interestingly, among the 58 differentially expressed genes (DEGs), several were related to primary cilia organelles (such as Lebercilin 5 gene), in addition to the genes involved in the regulation of cell differentiation, in the control of RNA-processing, and G-protein and ERK signaling pathways. Together with cilia-related genes, we also found in high IMF pigs an over-expression of the Fibroblast Growth Factor 2 (FGF2) gene, which in other animal species was found to be a regulator of ciliogenesis. Four WGCNA gene modules resulted significantly associated with IMF deposition: grey60 (P = 0.003), darkturquoise (P = 0.022), skyblue1 (P = 0.022), and lavenderblush3 (P = 0.030). The genes in the significant modules confirmed the results obtained for the DEGs, and the analysis with “cytoHubba” indicated genes controlling RNA splicing and cell differentiation as hub genes. Among the complex molecular processes affecting muscle fat depots, genes involved in primary cilia may have an important role, and the transcriptional reprogramming observed in high IMF pigs may be related to an FGF-related molecular cascade and to ciliogenesis, which in the literature have been associated with fibro-adipogenic precursor differentiation.
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Affiliation(s)
- Martina Zappaterra
- Department of Agricultural and Food Sciences (DISTAL), Division of Animal Science, University of Bologna, Bologna, Italy
| | - Silvia Gioiosa
- Super Computing Applications and Innovation Department (SCAI), CINECA, Rome, Italy
| | - Giovanni Chillemi
- Department for Innovation in Biological, Agro-food and Forest systems (DIBAF), University of Tuscia, Viterbo, Italy
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM), CNR, Bari, Italy
| | - Paolo Zambonelli
- Department of Agricultural and Food Sciences (DISTAL), Division of Animal Science, University of Bologna, Bologna, Italy
| | - Roberta Davoli
- Department of Agricultural and Food Sciences (DISTAL), Division of Animal Science, University of Bologna, Bologna, Italy
- Interdepartmental Centre of Agri-food Industrial Research (CIRI-AGRO), University of Bologna, Cesena, Italy
- * E-mail:
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Genetic parameters of muscle fatty acid profile in a purebred Large White heavy pig population. Meat Sci 2020; 163:108057. [DOI: 10.1016/j.meatsci.2020.108057] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 12/15/2022]
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Genome-wide association study identifies quantitative trait loci regions involved in muscle acidic profile in Large White heavy pigs. Animal 2020; 14:1342-1350. [PMID: 32037995 DOI: 10.1017/s1751731120000099] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The widespread use of genome-wide association studies resulted in the discovery of genomic regions associated with fatty acid (FA) composition in different porcine tissues, but little information exists about the genes involved in FA composition of meat obtained from heavy pigs selected for the production of Italian dry-cured hams. To this objective, we genotyped with a single nucleotide polymorphism (SNP) panel 795 Italian Large White heavy pigs to identify the markers and genomic regions associated with Semimembranosus muscle FA profile. Heritability estimates for intramuscular fat FA profile were of low-to-moderate magnitude, suggesting that these traits may be improved with genomic selection. On the whole, 45 SNPs were significantly associated with 14 FAs, and 4 of them (ALGA008109, ALGA0081097, CASI0010164 and SIRI0000267) were associated with more than 1 FA. The palmitoleic : palmitic and oleic : stearic ratios displayed the highest number of significant markers and the most significant associations (Bonferroni adjusted P < 5.00E-07). Of particular interest, the palmitoleic : palmitic ratio was strongly associated with markers located at 111 to 114 Mb on chromosome 14, in the same chromosomal region where Stearoyl-CoA desaturase Δ9 (SCD) gene is located. Several significant chromosomal regions were found; some of them harbour key genes playing pivotal roles in FA desaturation and elongation, such as SCD and some members of the Elongation of Very Long-Chain FA (ELOVL) gene family. The results suggest that the identification of causal mutations in these regions may provide a set of markers useful for selection schemes aimed at improving FA composition in pork products.
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Sosa‐Madrid BS, Hernández P, Blasco A, Haley CS, Fontanesi L, Santacreu MA, Pena RN, Navarro P, Ibáñez‐Escriche N. Genomic regions influencing intramuscular fat in divergently selected rabbit lines. Anim Genet 2020; 51:58-69. [PMID: 31696970 PMCID: PMC7004202 DOI: 10.1111/age.12873] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
Intramuscular fat (IMF) is one of the main meat quality traits for breeding programmes in livestock species. The main objective of this study was to identify genomic regions associated with IMF content comparing two rabbit populations divergently selected for this trait, and to generate a list of putative candidate genes. Animals were genotyped using the Affymetrix Axiom OrcunSNP Array (200k). After quality control, the data involved 477 animals and 93 540 SNPs. Two methods were used in this research: single marker regressions with the data adjusted by genomic relatedness, and a Bayesian multiple marker regression. Associated genomic regions were located on the rabbit chromosomes (OCU) OCU1, OCU8 and OCU13. The highest value for the percentage of the genomic variance explained by a genomic region was found in two consecutive genomic windows on OCU8 (7.34%). Genes in the associated regions of OCU1 and OCU8 presented biological functions related to the control of adipose cell function, lipid binding, transportation and localisation (APOLD1, PLBD1, PDE6H, GPRC5D and GPRC5A) and lipid metabolic processes (MTMR2). The EWSR1 gene, underlying the OCU13 region, is linked to the development of brown adipocytes. The findings suggest that there is a large component of polygenic effect behind the differences in IMF content in these two lines, as the variance explained by most of the windows was low. The genomic regions of OCU1, OCU8 and OCU13 revealed novel candidate genes. Further studies would be needed to validate the associations and explore their possible application in selection programmes.
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Affiliation(s)
- Bolívar S. Sosa‐Madrid
- Institute for Animal Science and TechnologyUniversitat Politècnica de València46022 ValenciaSpain
| | - Pilar Hernández
- Institute for Animal Science and TechnologyUniversitat Politècnica de València46022 ValenciaSpain
| | - Agustín Blasco
- Institute for Animal Science and TechnologyUniversitat Politècnica de València46022 ValenciaSpain
| | - Chris S. Haley
- MRC Human Genetics UnitMRC Institute of Genetics and Molecular MedicineUniversity of EdinburghCrewe Road, Edinburgh EH4 2XUUnited Kingdom
- Roslin Institute and Royal (Dick) School of Veterinary StudiesUniversity of EdinburghMidlothian EH25 9RGUnited Kingdom
| | - Luca Fontanesi
- Division of Animal SciencesDepartment of Agricultural and Food SciencesUniversity of Bologna40127 BolognaItaly
| | - María A. Santacreu
- Institute for Animal Science and TechnologyUniversitat Politècnica de València46022 ValenciaSpain
| | - Romi N. Pena
- Departament de Ciència AnimalUniversitat de Lleida–Agrotecnio CentreE-25198 LleidaCatalonia, Spain
| | - Pau Navarro
- MRC Human Genetics UnitMRC Institute of Genetics and Molecular MedicineUniversity of EdinburghCrewe Road, Edinburgh EH4 2XUUnited Kingdom
| | - Noelia Ibáñez‐Escriche
- Institute for Animal Science and TechnologyUniversitat Politècnica de València46022 ValenciaSpain
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Transcriptional insights into key genes and pathways controlling muscle lipid metabolism in broiler chickens. BMC Genomics 2019; 20:863. [PMID: 31729950 PMCID: PMC6858653 DOI: 10.1186/s12864-019-6221-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 10/24/2019] [Indexed: 12/20/2022] Open
Abstract
Background Intramuscular fat (IMF) is one of the most important factors positively associated with meat quality. Triglycerides (TGs), as the main component of IMF, play an essential role in muscle lipid metabolism. This transcriptome analysis of pectoralis muscle tissue aimed to identify functional genes and biological pathways likely contributing to the extreme differences in the TG content of broiler chickens. Results The study included Jingxing-Huang broilers that were significantly different in TG content (5.81 mg/g and 2.26 mg/g, p < 0.01) and deposition of cholesterol also showed the same trend. This RNA sequencing analysis was performed on pectoralis muscle samples from the higher TG content group (HTG) and the lower TG content group (LTG) chickens. A total of 1200 differentially expressed genes (DEGs) were identified between two groups, of which 59 DEGs were related to TG and steroid metabolism. The HTG chickens overexpressed numerous genes related to adipogenesis and lipogenesis in pectoralis muscle tissue, including the key genes ADIPOQ, CD36, FABP4, FABP5, LPL, SCD, PLIN1, CIDEC and PPARG, as well as genes related to steroid biosynthesis (DHCR24, LSS, MSMO1, NSDHL and CH25H). Additionally, key pathways related to lipid storage and metabolism (the steroid biosynthesis and peroxisome proliferator activated receptor (PPAR) signaling pathway) may be the key pathways regulating differential lipid deposition between HTG group and LTG group. Conclusions This study showed that increased TG deposition accompanying an increase in steroid synthesis in pectoralis muscle tissue. Our findings of changes in gene expression of steroid biosynthesis and PPAR signaling pathway in HTG and LTG chickens provide insight into genetic mechanisms involved in different lipid deposition patterns in pectoralis muscle tissue.
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Paura L, Degola L, Jonkus D, Gramatina I. Analysis of Chemical Composition in Pork Longissimus Muscle of Latvian Breed Pigs. ACTA UNIVERSITATIS AGRICULTURAE ET SILVICULTURAE MENDELIANAE BRUNENSIS 2019. [DOI: 10.11118/actaun201967051189] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Zappaterra M, Luise D, Zambonelli P, Mele M, Serra A, Costa LN, Davoli R. Association study between backfat fatty acid composition and SNPs in candidate genes highlights the effect of FASN polymorphism in large white pigs. Meat Sci 2019; 156:75-84. [DOI: 10.1016/j.meatsci.2019.05.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 05/08/2019] [Accepted: 05/13/2019] [Indexed: 12/30/2022]
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Ding R, Yang M, Quan J, Li S, Zhuang Z, Zhou S, Zheng E, Hong L, Li Z, Cai G, Huang W, Wu Z, Yang J. Single-Locus and Multi-Locus Genome-Wide Association Studies for Intramuscular Fat in Duroc Pigs. Front Genet 2019; 10:619. [PMID: 31316554 PMCID: PMC6609572 DOI: 10.3389/fgene.2019.00619] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 06/13/2019] [Indexed: 12/26/2022] Open
Abstract
Intramuscular fat (IMF) is an important quantitative trait of meat, which affects the associated sensory properties and nutritional value of pork. To gain a better understanding of the genetic determinants of IMF, we used a composite strategy, including single-locus and multi-locus association analyses to perform genome-wide association studies (GWAS) for IMF in 1,490 Duroc boars. We estimated the genomic heritability of IMF to be 0.23 ± 0.04. A total of 30 single nucleotide polymorphisms (SNPs) were found to be significantly associated with IMF. The single-locus mixed linear model (MLM) and multiple-locus methods multi-locus random-SNP-effect mixed linear model (mrMLM), fast multi-locus random-SNP-effect efficient mixed model association (FASTmrEMMA), and integrative sure independence screening expectation maximization Bayesian least absolute shrinkage and selection operator model (ISIS EM-BLASSO) analyses identified 5, 9, 8, and 21 significant SNPs, respectively. Interestingly, a novel quantitative trait locus (QTL) on SSC 7 was found to affect IMF. In addition, 10 candidate genes (BDKRB2, GTF2IRD1, UTRN, TMEM138, DPYD, CASQ2, ZNF518B, S1PR1, GPC6, and GLI1) were found to be associated with IMF based on their potential functional roles in IMF. GO analysis showed that most of the genes were involved in muscle and organ development. A significantly enriched KEGG pathway, the sphingolipid signaling pathway, was reported to be associated with fat deposition and obesity. Identification of novel variants and functional genes will advance our understanding of the genetic mechanisms of IMF and provide specific opportunities for marker-assisted or genomic selection in pigs. In general, such a composite single-locus and multi-locus strategy for GWAS may be useful for understanding the genetic architecture of economic traits in livestock.
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Affiliation(s)
- Rongrong Ding
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Ming Yang
- National Engineering Research Center for Breeding Swine Industry, Guangdong Wens Foodstuffs Group, Co., Ltd., Guangdong, China
| | - Jianping Quan
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Shaoyun Li
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Zhanwei Zhuang
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Shenping Zhou
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Enqin Zheng
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Linjun Hong
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Zicong Li
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
| | - Gengyuan Cai
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China.,National Engineering Research Center for Breeding Swine Industry, Guangdong Wens Foodstuffs Group, Co., Ltd., Guangdong, China
| | - Wen Huang
- Department of Animal Science, Michigan State University, East Lansing, MI, United States
| | - Zhenfang Wu
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China.,National Engineering Research Center for Breeding Swine Industry, Guangdong Wens Foodstuffs Group, Co., Ltd., Guangdong, China
| | - Jie Yang
- College of Animal Science and National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangdong, China
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Gol S, González-Prendes R, Bosch L, Tor M, Reixach J, Pena RN, Estany J. Linoleic acid metabolic pathway allows for an efficient increase of intramuscular fat content in pigs. J Anim Sci Biotechnol 2019; 10:33. [PMID: 31080594 PMCID: PMC6503358 DOI: 10.1186/s40104-019-0343-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 03/11/2019] [Indexed: 12/18/2022] Open
Abstract
Background Intramuscular fat (IMF) content is a relevant trait for high-quality meat products such as dry-cured ham, but increasing IMF has the undesirable correlated effect of decreasing lean growth. Thus, there is a need to find selection criteria for IMF independent from lean growth. In pigs, the proportion of linoleic (C18:2) and arachidonic (C20:4) acids decline with fat deposition and therefore they can be considered as indicators of fatness. The aim of this research was to estimate the genetic variation for C18:2 and C20:4 in IMF and their genetic correlations with IMF and lean growth traits, with the objective to assess their potential as specific biomarkers of IMF. The analysis was conducted using a full-pedigreed Duroc resource line with 91,448 records of body weight and backfat thickness (BT) at 180 days of age and 1371 records of fatty acid composition in the muscle gluteus medius. Results The heritability estimates for C18:2 and C20:4 in IMF, whether expressed in absolute (mg/g of muscle) or in relative (mg/g of fatty acid) terms, as well as for their ratio (C20:4/C18:2), were high (> 0.40), revealing that the C18:2 to C20:4 pathway is subjected to substantial genetic influence. Litter effects were not negligible, with values ranging from 8% to 15% of the phenotypic variance. The genetic correlations of C18:2 and C20:4 with IMF and BT were negative (- 0.75 to - 0.66, for IMF, and - 0.64 to - 0.36, for BT), if expressed in relative values, but almost null (- 0.04 to 0.07), if expressed in absolute values, except for C18:2 with IMF, which was highly positive (0.88). The ratio of C20:4 to C18:2 also displayed a stronger genetic correlation with IMF (- 0.59) than with BT (- 0.10). Conclusions The amount of C18:2 in muscle can be used as an IMF-specific biomarker. Selection for the absolute amount of C18:2 is expected to deliver a similar response outcome as selection for IMF at restrained BT. Further genetic analysis of the C18:2 metabolic pathway may provide new insights into differential fat deposition among adipose tissues and on candidate genes for molecular markers targeting specifically for one of them.
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Affiliation(s)
- Sofia Gol
- 1Department of Animal Science, Universitat de Lleida - Agrotecnio Center, 191 Rovira Roure, 25198 Lleida, Catalonia Spain
| | - Rayner González-Prendes
- 1Department of Animal Science, Universitat de Lleida - Agrotecnio Center, 191 Rovira Roure, 25198 Lleida, Catalonia Spain
| | - Lluís Bosch
- 2Department of Chemical, Agricultural and Food Technology Engineering, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia Spain
| | - Marc Tor
- 1Department of Animal Science, Universitat de Lleida - Agrotecnio Center, 191 Rovira Roure, 25198 Lleida, Catalonia Spain
| | - Josep Reixach
- Selección Batallé S.A., Av. Segadors s/n, 17421 Riudarenes, Catalonia Spain
| | - Ramona N Pena
- 1Department of Animal Science, Universitat de Lleida - Agrotecnio Center, 191 Rovira Roure, 25198 Lleida, Catalonia Spain
| | - Joan Estany
- 1Department of Animal Science, Universitat de Lleida - Agrotecnio Center, 191 Rovira Roure, 25198 Lleida, Catalonia Spain
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18
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Chen FF, Wang YQ, Tang GR, Liu SG, Cai R, Gao Y, Sun YM, Yang GS, Pang WJ. Differences between porcine longissimus thoracis and semitendinosus intramuscular fat content and the regulation of their preadipocytes during adipogenic differentiation. Meat Sci 2019; 147:116-126. [DOI: 10.1016/j.meatsci.2018.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 08/25/2018] [Accepted: 09/03/2018] [Indexed: 02/07/2023]
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20
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Stachowiak M, Szczerbal I, Flisikowski K. Investigation of allele-specific expression of genes involved in adipogenesis and lipid metabolism suggests complex regulatory mechanisms of PPARGC1A expression in porcine fat tissues. BMC Genet 2018; 19:107. [PMID: 30497374 PMCID: PMC6267897 DOI: 10.1186/s12863-018-0696-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/19/2018] [Indexed: 02/06/2023] Open
Abstract
Background The expression of genes involved in regulating adipogenesis and lipid metabolism may affect economically important fatness traits in pigs. Allele-specific expression (ASE) reflects imbalance between allelic transcript levels and can be used to identify underlying cis-regulatory elements. ASE has not yet been intensively studied in pigs. The aim of this investigation was to analyze the differential allelic expression of four genes, PPARA, PPARG, SREBF1, and PPARGC1A, which are involved in the regulation of fat deposition in porcine subcutaneous and visceral fat and longissimus dorsi muscle. Results Quantification of allelic proportions by pyrosequencing revealed that both alleles of PPARG and SREBF1 are expressed at similar levels. PPARGC1A showed the greatest ASE imbalance in fat deposits in Polish Large White (PLW), Polish Landrace and Pietrain pigs; and PPARA in PLW pigs. Significant deviations of mean PPARGC1A allelic transcript ratio between cDNA and genomic DNA were detected in all tissues, with the most pronounced difference (p < 0.001) in visceral fat of PLW pigs. To search for potential cis-regulatory elements affecting ASE in the PPARGC1A gene we analyzed the effects of four SNPs (rs337351686, rs340650517, rs336405906 and rs345224049) in the promoter region, but none were associated with ASE in the breeds studied. DNA methylation analysis revealed significant CpG methylation differences between samples showing balanced (allelic transcript ratio ≈1) and imbalanced allelic expression for CpG site at the genomic position in chromosome 8 (SSC8): 18527678 in visceral fat (p = 0.017) and two CpG sites (SSC8:18525215, p = 0.030; SSC8:18525237, p = 0.031) in subcutaneous fat. Conclusions Our analysis of differential allelic expression suggests that PPARGC1A is subjected to cis-regulation in porcine fat tissues. Further studies are necessary to identify other regulatory elements localized outside the PPARGC1A proximal promoter region. Electronic supplementary material The online version of this article (10.1186/s12863-018-0696-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Monika Stachowiak
- Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Wolynska 33, 60-637, Poznan, Poland.
| | - Izabela Szczerbal
- Department of Genetics and Animal Breeding, Poznan University of Life Sciences, Wolynska 33, 60-637, Poznan, Poland
| | - Krzysztof Flisikowski
- Chair of Livestock Biotechnology, Technical University of Munich, Liesel-Beckmannstr. 1, 85354, Freising, Germany
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21
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Association of single nucleotide polymorphisms in leptin (LEP) and leptin receptor (LEPR) genes with backfat thickness and daily weight gain in Ukrainian Large White pigs. Livest Sci 2018. [DOI: 10.1016/j.livsci.2018.09.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Wang Y, Ning C, Wang C, Guo J, Wang J, Wu Y. Genome-wide association study for intramuscular fat content in Chinese Lulai black pigs. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2018; 32:607-613. [PMID: 30381738 PMCID: PMC6502724 DOI: 10.5713/ajas.18.0483] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 10/16/2018] [Indexed: 12/31/2022]
Abstract
Objective Intramuscular fat (IMF) content plays an important role in meat quality. Identification of single nucleotide polymorphisms (SNPs) and genes related to pig IMF, especially using pig populations with high IMF content variation, can help to establish novel molecular breeding tools for optimizing IMF in pork and unveil the mechanisms that underlie fat metabolism. Methods We collected muscle samples of 453 Chinese Lulai black pigs, measured IMF content by Soxhlet petroleum-ether extraction method, and genotyped genome-wide SNPs using GeneSeek Genomic Profiler Porcine HD BeadChip. Then a genome-wide association study was performed using a linear mixed model implemented in the GEMMA software. Results A total of 43 SNPs were identified to be significantly associated with IMF content by the cutoff p<0.001. Among these significant SNPs, the greatest number of SNPs (n = 19) were detected on Chr.9, and two linkage disequilibrium blocks were formed among them. Additionally, 17 significant SNPs are mapped to previously reported quantitative trait loci (QTLs) of IMF and confirmed previous QTLs studies. Forty-two annotated genes centering these significant SNPs were obtained from Ensembl database. Overrepresentation test of pathways and gene ontology (GO) terms revealed some enriched reactome pathways and GO terms, which mainly involved regulation of basic material transport, energy metabolic process and signaling pathway. Conclusion These findings improve our understanding of the genetic architecture of IMF content in pork and facilitate the follow-up study of fine-mapping genes that influence fat deposition in muscle.
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Affiliation(s)
- Yanping Wang
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Chao Ning
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Cheng Wang
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Jianfeng Guo
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Jiying Wang
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
| | - Ying Wu
- Shandong Provincial Key Laboratory of Animal Disease Control and Breeding, Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences, Jinan 250100, China
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23
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Jiang Y, Tang S, Wang C, Wang Y, Qin Y, Wang Y, Zhang J, Song H, Mi S, Yu F, Xiao W, Zhang Q, Ding X. A genome-wide association study of growth and fatness traits in two pig populations with different genetic backgrounds. J Anim Sci 2018. [PMID: 29528397 DOI: 10.1093/jas/skx038] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Improvement in growth and fatness traits are the main objectives in pig all breeding programs. Tenth rib backfat thickness (10RIBBFT) and days to 100 kg (D100), which are good predictors of carcass lean content and growth rate, respectively, are economically important traits and also main breeding target traits in pigs. To investigate the genetic mechanisms of 10RIBBFT and D100 of pigs, we sampled 1,137 and 888 pigs from 2 Yorkshire populations of American and British origin, respectively, and conducted genome-wide association study (GWAS) through combined analysis and meta-analysis, to identify SNPs associated with 10RIBBFT and D100. A total of 11 and 7 significant SNPs were identified by combined analysis for 10RIBBFT and D100, respectively. And in meta-analysis, 8 and 7 significant SNPs were identified for 10RIBBFT and D100, respectively. Among them, 6 and 5 common significant SNPs in two analysis results were, respectively, identified associated with 10RIBBFT and D100, and correspondingly explained 2.09% and 0.52% of the additive genetic variance of 10RIBBFT and D100. Further bioinformatics analysis revealed 10 genes harboring or close to these common significant SNPs, 5 for 10RIBBFT and 5 for D100. In particular, Gene Ontology analysis highlighted 6 genes, PCK1, ANGPTL3, EEF1A2, TNFAIP8L3, PITX2, and PLA2G12, as promising candidate genes relevant with backfat thickness and growth. PCK1, ANGPTL3, EEF1A2, and TNFAIP8L3 could influence backfat thickness through phospholipid transport, regulation of lipid metabolic process through the glycerophospholipid biosynthesis and metabolism pathway, the metabolism of lipids and lipoproteins pathway. PITX2 has a crucial role in skeletal muscle tissue development and animal organ morphogenesis, and PLA2G12A plays a role in the lipid catabolic and phospholipid catabolic processes, which both are involved in the body weight pathway. All these candidate genes could directly or indirectly influence fat production and growth in Yorkshire pigs. Our findings provide novel insights into the genetic basis of growth and fatness traits in pigs. The candidate genes for D100 and 10RIBBFT are worthy of further investigation.
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Affiliation(s)
- Y Jiang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - S Tang
- Beijing Station of Animal Husbandry, Beijing, P.R. China
| | - C Wang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - Y Wang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - Y Qin
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - Y Wang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - J Zhang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - H Song
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - S Mi
- Beijing LM Pig Breeding Technology Co., Ltd., Beijing, P.R. China
| | - F Yu
- Beijing Shunxin Agricultural Co., Ltd., Beijing, P.R. China
| | - W Xiao
- Beijing Station of Animal Husbandry, Beijing, P.R. China
| | - Q Zhang
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
| | - X Ding
- National Engineering Laboratory for Animal Breeding, Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing, P.R. China
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24
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Miao Z, Wang S, Wang Y, Wei P, Khan MA, Zhang J, Guo L, Liu D. Comparison of microRNAs in the intramuscular adipose tissue from Jinhua and Landrace pigs. J Cell Biochem 2018; 120:192-200. [DOI: 10.1002/jcb.27298] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Accepted: 06/26/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Zhiguo Miao
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology Xinxiang Henan China
| | - Shan Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology Xinxiang Henan China
| | - Yimin Wang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology Xinxiang Henan China
| | - Panpeng Wei
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology Xinxiang Henan China
| | - Muhammad Akram Khan
- Department of Pathobiology Faculty of Veterinary and Animal Sciences, PMAS‐Arid Agriculture University Rawalpindi Rawalpindi Pakistan
| | - Jinzhou Zhang
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology Xinxiang Henan China
| | - Liping Guo
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology Xinxiang Henan China
| | - Dongyang Liu
- College of Animal Science and Veterinary Medicine, Henan Institute of Science and Technology Xinxiang Henan China
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25
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You FM, Xiao J, Li P, Yao Z, Jia G, He L, Kumar S, Soto-Cerda B, Duguid SD, Booker HM, Rashid KY, Cloutier S. Genome-Wide Association Study and Selection Signatures Detect Genomic Regions Associated with Seed Yield and Oil Quality in Flax. Int J Mol Sci 2018; 19:ijms19082303. [PMID: 30082613 PMCID: PMC6121305 DOI: 10.3390/ijms19082303] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 08/02/2018] [Accepted: 08/03/2018] [Indexed: 12/31/2022] Open
Abstract
A genome-wide association study (GWAS) was performed on a set of 260 lines which belong to three different bi-parental flax mapping populations. These lines were sequenced to an averaged genome coverage of 19× using the Illumina Hi-Seq platform. Phenotypic data for 11 seed yield and oil quality traits were collected in eight year/location environments. A total of 17,288 single nucleotide polymorphisms were identified, which explained more than 80% of the phenotypic variation for days to maturity (DTM), iodine value (IOD), palmitic (PAL), stearic, linoleic (LIO) and linolenic (LIN) acid contents. Twenty-three unique genomic regions associated with 33 quantitative trait loci (QTL) for the studied traits were detected, thereby validating four genomic regions previously identified. The 33 QTL explained 48–73% of the phenotypic variation for oil content, IOD, PAL, LIO and LIN but only 8–14% for plant height, DTM and seed yield. A genome-wide selective sweep scan for selection signatures detected 114 genomic regions that accounted for 7.82% of the flax pseudomolecule and overlapped with the 11 GWAS-detected genomic regions associated with 18 QTL for 11 traits. The results demonstrate the utility of GWAS combined with selection signatures for dissection of the genetic structure of traits and for pinpointing genomic regions for breeding improvement.
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Affiliation(s)
- Frank M You
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB R6M 1Y5, Canada.
| | - Jin Xiao
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.
- Department of Agronomy, Nanjing Agricultural University, Nanjing 210095, China.
| | - Pingchuan Li
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.
| | - Zhen Yao
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB R6M 1Y5, Canada.
| | - Gaofeng Jia
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada.
| | - Liqiang He
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.
| | - Santosh Kumar
- Brandon Research and Development Centre, Agriculture and Agri-Food Canada, Brandon, MB R7A 5Y3, Canada.
| | - Braulio Soto-Cerda
- Department of Plant Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
- Agriaquaculture Nutritional Genomic Center, CGNA, Temuco 4871158, Chile.
| | - Scott D Duguid
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB R6M 1Y5, Canada.
| | - Helen M Booker
- Crop Development Centre, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada.
| | - Khalid Y Rashid
- Morden Research and Development Centre, Agriculture and Agri-Food Canada, Morden, MB R6M 1Y5, Canada.
| | - Sylvie Cloutier
- Ottawa Research and Development Centre, Agriculture and Agri-Food Canada, Ottawa, ON K1A 0C6, Canada.
- Department of Plant Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
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26
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Kociucka B, Stachecka J, Szydlowski M, Szczerbal I. Rapid Communication: The correlation between histone modifications and expression of key genes involved in accumulation of adipose tissue in the pig. J Anim Sci 2018; 95:4514-4519. [PMID: 29108067 DOI: 10.2527/jas2017.2010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Histone modification is a well-known epigenetic mechanism involved in regulation of gene expression; however, it has been poorly studied in adipose tissues of the pig. Understanding the molecular background of adipose tissue development and function is essential for improving production efficiency and meat quality. The objective of this study was to identify the association between histone modification and the transcript level of genes important for lipid droplet formation and metabolism. Histone modifications at the promoter regions of 6 genes (, , , , , and ) were analyzed using a chromatin immunoprecipitation assay. Two modifications involved in activation of gene expression (acetylation of H3 histone at lysine 9 and methylation of H3 histone at lysine 4) as well as methylation of H3 histone at lysine 27, which is known to be related to gene repression, were examined. The level of histone modification was compared with transcript abundance determined using real-time PCR in tissue samples (subcutaneous fat, visceral fat, and longissimus dorsi muscle) derived from 3 pig breeds significantly differing in fatness traits (Polish Large White, Duroc, and Pietrain). Transcript levels were found to be correlated with histone modifications characteristic to active loci in 4 of 6 genes. A positive correlation between histone H3 lysine 9 acetylation modification and the transcript level of ( = 0.53, < 4.8 × 10), ( = 0.34, < 0.02), and ( = 0.43, < 1.0 × 10) genes was observed. The histone H3 lysine 4 trimethylation modification correlated with transcripts of ( = 0.64, < 4.6 × 10) and ( = 0.37, < 0.01) genes. No correlation was found between transcript level of all studied genes and histone H3 lysine 27 trimethylation level. This is the first study on histone modifications in porcine adipose tissues. We confirmed the relationship between histone modifications and expression of key genes for adipose tissue accumulation in the pig. Epigenetic modulation of the transcriptional profile of these genes (e.g., through nutritional factors) may improve porcine fatness traits in future.
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Ye M, Xu M, Chen C, He Y, Ding M, Ding X, Wei W, Yang S, Zhou B. Expression analyses of candidate genes related to meat quality traits in squabs from two breeds of meat-type pigeon. J Anim Physiol Anim Nutr (Berl) 2018; 102:727-735. [PMID: 29341282 DOI: 10.1111/jpn.12869] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Accepted: 12/19/2017] [Indexed: 12/16/2022]
Abstract
In this study, meat quality traits were compared between squabs from two pigeon breeds: one Chinese indigenous breed, the Shiqi (SQ) meat-type pigeon, and an imported breed, the white king (WK) meat-type pigeon. Breed differences were detected in the content of intramuscular fat (IMF) in the breast muscle. SQ squabs had significantly higher IMF content than the WK birds. The shear force value (an objective measure of meat tenderness) of SQ birds was also relatively lower than that of the WK squabs. Further analysis of fatty acids profile revealed that SQ squabs exhibited significant advantage in the synthesis of polyunsaturated fatty acids, while WK squabs were significantly higher in the sum of monounsaturated fatty acids. Breast muscle in the SQ squabs was also significantly higher in the ratio of polyunsaturated fatty acids to saturated fatty acids, as well as the sum of omega 6 fatty acids. Variability of expression levels of functional genes in relation to fat accumulation and meat tenderness was analysed by qRT-PCR. Gene expression analyses showed that the hepatic expression of LPL (lipoprotein lipase), FABP4 (fatty acid-binding protein 4), and CAPN2 (calpain-2) were significantly higher in the SQ squabs. In the breast muscle tissue, the FABP3 (fatty acid-binding protein 3) and CAPN2mRNA abundance was significantly higher in SQ squabs. Our results suggested that these differentially expressed genes might be candidate genes used in the programmes of targeted selection for squabs with higher IMF content, tender meat, and more favourable fatty acids composition.
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Affiliation(s)
- M Ye
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China.,Joint International Research Laboratory of Agricultural & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, China
| | - M Xu
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
| | - C Chen
- Shiqi Meat-type Pigeon Farm, Guangzhou, Guangdong, China
| | - Y He
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
| | - M Ding
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
| | - X Ding
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China
| | - W Wei
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China.,Joint International Research Laboratory of Agricultural & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, China
| | - S Yang
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou, Jiangsu, China.,Joint International Research Laboratory of Agricultural & Agri-Product Safety, Yangzhou University, Yangzhou, Jiangsu, China
| | - B Zhou
- College of Animal Science and Technology, Yangzhou University, Yangzhou, Jiangsu, China
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28
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Investigation of the Perilipin 5 gene expression and association study of its sequence polymorphism with meat and carcass quality traits in different pig breeds. Animal 2018; 12:1135-1143. [DOI: 10.1017/s1751731117002804] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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