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Montowska M, Kasałka-Czarna N, Sumara A, Fornal E. Comparative analysis of the longissimus muscle proteome of European wild boar and domestic pig in response to thermal processing. Food Chem 2024; 456:139871. [PMID: 38870802 DOI: 10.1016/j.foodchem.2024.139871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 03/26/2024] [Accepted: 05/26/2024] [Indexed: 06/15/2024]
Abstract
This study tries to fill the knowledge gap regarding differences in the expression of proteins in the meat of European wild boar (Sus scrofa scrofa) and domestic pig (Sus scrofa domestica), considering the impact of thermally induced degradation. We assessed relative protein changes between cooked longissimus thoracis et lumborum (LTL) muscle proteomes by using mass spectrometry, chemometric, label-free proteomic, and bioinformatic tools. Among 30 differentially abundant proteins identified MyHC-2a, ATPs-α, CK-S, ADP/ATPt1, IDH2, and MyBP-C1 were upregulated (x > 1) whereas NEB, γ-ENO and EPSF were downregulated (x < 1) in wild boar. ShinyGO and KEGG database pathway analyses revealed that these proteins are mainly involved in processes related to muscle contraction and various pathways of glucose metabolism and energy production. Protein expression changes could have been caused by the different muscle activity of wild animals in response to prolonged movement associated with foraging for food in the natural environment.
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Affiliation(s)
- Magdalena Montowska
- Department of Meat Technology, Poznan University of Life Sciences, ul. Wojska Polskiego 31, 60-624 Poznan, Poland.
| | - Natalia Kasałka-Czarna
- Department of Meat Technology, Poznan University of Life Sciences, ul. Wojska Polskiego 31, 60-624 Poznan, Poland
| | - Agata Sumara
- Department of Bioanalytics, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
| | - Emilia Fornal
- Department of Bioanalytics, Medical University of Lublin, ul. Jaczewskiego 8b, 20-090 Lublin, Poland
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Park SL, Huang YJS, Lyons AC, Ayers VB, Hettenbach SM, McVey DS, Noronha LE, Burton KR, Higgs S, Vanlandingham DL. Infection of Feral Phenotype Swine with Japanese Encephalitis Virus. Vector Borne Zoonotic Dis 2023; 23:645-652. [PMID: 37672628 PMCID: PMC10698774 DOI: 10.1089/vbz.2023.0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/08/2023] Open
Abstract
Background: Japanese encephalitis virus (JEV) is a mosquito-borne zoonotic flavivirus and the leading cause of pediatric encephalitis in the Asian Pacific region. The transmission cycle primarily involves Culex spp. mosquitoes and Ardeid birds, with domestic pigs (Sus scrofa domestica) being the source of infectious viruses for the spillover of JEV from the natural endemic transmission cycle into the human population. Although many studies have concluded that domestic pigs play an important role in the transmission cycle of JEV, and infection of humans, the role of feral pigs in the transmission of JEV remains unclear. Since domestic and feral pigs are the same species, and because feral pig populations in the United States are increasing and expanding geographically, the current study aimed to test the hypothesis that if JEV were introduced into the United States, feral pigs might play a role in the transmission cycle. Materials and Methods: Sinclair miniature pigs, that exhibit the feral phenotype, were intradermally inoculated with JEV genotype Ib. These pigs were derived from crossing miniature domestic pig with four strains of feral pigs and were used since obtaining feral swine was not possible. Results: The Sinclair miniature pigs became viremic and displayed pathological outcomes similar to those observed in domestic swine. Conclusion: Based on these findings, we conclude that in the event of JEV being introduced into the United States, feral pig populations could contribute to establishment and maintenance of a transmission cycle of JEV and could lead to the virus becoming endemic in the United States.
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Affiliation(s)
- So Lee Park
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
| | - Yan-Jang S. Huang
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
| | - Amy C. Lyons
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
| | - Victoria B. Ayers
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
| | - Susan M. Hettenbach
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
| | - D. Scott McVey
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Leela E. Noronha
- Arthropod-Borne Animal Diseases Research Unit, Center for Grain and Animal Health Research, Agricultural Research Service, United States Department of Agriculture, Manhattan, Kansas, USA
| | - Kenneth R. Burton
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
| | - Stephen Higgs
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
| | - Dana L. Vanlandingham
- Department of Diagnostic Medicine and Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, Kansas, USA
- Biosecurity Research Institute, Kansas State University, Manhattan, Kansas, USA
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Shall the Wild Boar Pass? A Genetically Assessed Ecological Corridor in the Geneva Region. SUSTAINABILITY 2022. [DOI: 10.3390/su14127463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Landscape fragmentation caused by road infrastructures represents a major threat to the genetic diversity of a region. The resulting genetic isolation between subpopulations may lead to consanguinity, and consequently to population collapse and extinction. However, the construction of wildlife crossings can help maintain connectivity. In the present paper, we evaluated the genetic spatial structuring of populations of wild boars (Sus scrofa) in three areas of the Geneva region connected by an ecological corridor. Those areas are cut off either by a highway that is crossed by a wildlife overpass or by an anthropized sector. Genetic profiling with 9 nuclear microsatellite markers yielded 61 single profiles, which allowed for clustering, parentage, and linkage disequilibrium analyses, uncovering the populations’ genetic structure. We also evaluated whether the genetic structure was affected by the sex of individuals. In our analyses, all individuals clustered into a single genetic group, suggesting that no structure limited significantly the gene flow in the region. However, a recent admixture indicated a potential increase in the gene flow between two of the subpopulations due to the wildlife overpass, while the other part of the ecological corridor was not or was only partially functional. Genetic distances between males were significantly higher than between females, although the role of sex remains unclear as to its influence on population genetics. Finally, in order to avoid a subregion becoming fully isolated, urbanization planning should consider this genetic evaluation and proceed with further monitoring, especially by focusing on species more sensitive to landscape fragmentation.
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Wu Z, Gong H, Zhou Z, Jiang T, Lin Z, Li J, Xiao S, Yang B, Huang L. Mapping short tandem repeats for liver gene expression traits helps prioritize potential causal variants for complex traits in pigs. J Anim Sci Biotechnol 2022; 13:8. [PMID: 35034641 PMCID: PMC8762894 DOI: 10.1186/s40104-021-00658-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/25/2021] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Short tandem repeats (STRs) were recently found to have significant impacts on gene expression and diseases in humans, but their roles on gene expression and complex traits in pigs remain unexplored. This study investigates the effects of STRs on gene expression in liver tissues based on the whole-genome sequences and RNA-Seq data of a discovery cohort of 260 F6 individuals and a validation population of 296 F7 individuals from a heterogeneous population generated from crosses among eight pig breeds. RESULTS We identified 5203 and 5868 significantly expression STRs (eSTRs, FDR < 1%) in the F6 and F7 populations, respectively, most of which could be reciprocally validated (π1 = 0.92). The eSTRs explained 27.5% of the cis-heritability of gene expression traits on average. We further identified 235 and 298 fine-mapped STRs through the Bayesian fine-mapping approach in the F6 and F7 pigs, respectively, which were significantly enriched in intron, ATAC peak, compartment A and H3K4me3 regions. We identified 20 fine-mapped STRs located in 100 kb windows upstream and downstream of published complex trait-associated SNPs, which colocalized with epigenetic markers such as H3K27ac and ATAC peaks. These included eSTR of the CLPB, PGLS, PSMD6 and DHDH genes, which are linked with genome-wide association study (GWAS) SNPs for blood-related traits, leg conformation, growth-related traits, and meat quality traits, respectively. CONCLUSIONS This study provides insights into the effects of STRs on gene expression traits. The identified eSTRs are valuable resources for prioritizing causal STRs for complex traits in pigs.
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Affiliation(s)
- Zhongzi Wu
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China
| | - Huanfa Gong
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China
| | - Zhimin Zhou
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China
| | - Tao Jiang
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China
| | - Ziqi Lin
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China
| | - Jing Li
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China
| | - Shijun Xiao
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China
| | - Bin Yang
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China.
| | - Lusheng Huang
- State Key Laboratory for Pig Genetic Improvement and Production Technology, Jiangxi Agricultural University, Nanchang, China.
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Development of Wild Boar Species-Specific DNA Markers for a Potential Quality Control and Traceability Method in Meat Products. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-020-01840-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractIn the food supply chain, quality control has a very important role in maintaining customer confidence. In the EU, food safety aspects are strictly regulated; however, composition requirements and standard control methods are generally undefined. The rapidly increasing wild boar population has a growing market share in venison or game meat production. Several methods have been described for species identification and control of composition in food products, but only some of these are suitable for routine measurements. The aim of our research was to design a rapid, reliable and simple PCR insertion/deletion (InDel)-based genetic tool suitable for species identification in food quality control laboratories. In total, 59 different swine (Sus scrofa) whole genomes were tested with bioinformatic tools to identify wild boar-specific insertions or deletions. Three independent InDels were suitable for marker development, multiplex PCR amplification and separation in agarose gel. Altogether, 209 samples of wild boar and ten other domestic pig breeds were taken for DNA extraction and validation of the three multiplexed InDel markers. Statistical analysis showed a very high combined predictive value (0.996), indicating the capability of the newly developed markers to detect wild boars with a probability over 99%. Breed assignment tests confirm that the InDel markers developed are suitable for rapid, sensitive and reliable identification of the wild boar meat content of food products. The use of the reported method in food quality control can mean a simple and cost-effective way to maintain consumer confidence and to support the competitiveness of fair producers.
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Wang H, Fu Y, Gu P, Zhang Y, Tu W, Chao Z, Wu H, Cao J, Zhou X, Liu B, Michal JJ, Fan C, Tan Y. Genome-Wide Characterization and Comparative Analyses of Simple Sequence Repeats among Four Miniature Pig Breeds. Animals (Basel) 2020; 10:ani10101792. [PMID: 33023098 PMCID: PMC7600727 DOI: 10.3390/ani10101792] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/15/2020] [Accepted: 09/28/2020] [Indexed: 12/13/2022] Open
Abstract
Simple Summary Simple sequence repeats (SSRs) are present at high densities in regulatory elements, suggesting that they may affect gene function and phenotypic traits. Therefore, SSRs can be exploited in marker-assisted selection. In addition, they can be widely used as molecular markers to study genetic diversity, population structure, and evolution. While SSRs have been widely studied in many mammalian species, very little research has focused on genome-wide SSRs of miniature pigs, a small but special group of pigs that express the dwarf phenotype. Based on the SSR-enriched library building and sequencing, about 30,000 novel polymorphic SSRs for four miniature pig breeds were mapped to the Duroc pig reference genome. The four miniature pig breeds had different numbers and types of SSRs and distributions of repeat units. There were 2518 polymorphic SSRs in the intron or exon regions that were common to all four breeds and functional analyses revealed 17 genes that were associated with body size and other genes that were associated with growth and development. In conclusion, the SSRs detected in the miniature pigs in this study may provide useful genetic markers for the selection of farm animals and the polymorphic SSRs provide valuable insights into the determination of mature body size, as well as the immunity, growth and development of animals. Abstract Simple sequence repeats (SSRs) are commonly used as molecular markers in research on genetic diversity and discrimination among taxa or breeds because polymorphisms in these regions contribute to gene function and phenotypically important traits. In this study, we investigated genome-wide characteristics, repeat units, and polymorphisms of SSRs using sequencing data from SSR-enriched libraries created from Wuzhishan (WZS), Bama (BM), inbred Luchuan (LC) and Zangxiang (ZX) miniature pig breeds. The numbers and types of SSRs, distributions of repeat units and polymorphic SSRs varied among the four breeds. Compared to the Duroc pig reference genome, 2518 polymorphic SSRs were unique and common to all four breeds and functional annotation revealed that they may affect the coding and regulatory regions of genes. Several examples, such as FGF23, MYF6, IGF1R, and LEPROT, are associated with growth and development in pigs. Three of the polymorphic SSRs were selected to confirm the polymorphism and the corresponding alleles through fluorescence polymerase chain reaction (PCR) and capillary electrophoresis. Together, this study provides useful insights into the discovery, characteristics and distribution of SSRs in four pig breeds. The polymorphic SSRs, especially those common and unique to all four pig breeds, might affect associated genes and play important roles in growth and development.
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Affiliation(s)
- Hongyang Wang
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (H.W.); (Y.Z.); (W.T.); (H.W.); (J.C.)
- Shanghai Engineering Research Center of Breeding Pig, Shanghai 201302, China
| | - Yang Fu
- Research Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Shanghai 201403, China;
| | - Peng Gu
- Institute of Comparative Medicine & Laboratory Animal Management Center, Southern Medical University, Guangzhou 510515, China;
| | - Yingying Zhang
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (H.W.); (Y.Z.); (W.T.); (H.W.); (J.C.)
- Shanghai Engineering Research Center of Breeding Pig, Shanghai 201302, China
| | - Weilong Tu
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (H.W.); (Y.Z.); (W.T.); (H.W.); (J.C.)
- Shanghai Engineering Research Center of Breeding Pig, Shanghai 201302, China
| | - Zhe Chao
- Institute of Animal Science and Veterinary Medicine, Hainan Academy of Agricultural Sciences, Haikou 571100, China;
| | - Huali Wu
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (H.W.); (Y.Z.); (W.T.); (H.W.); (J.C.)
- Shanghai Engineering Research Center of Breeding Pig, Shanghai 201302, China
| | - Jianguo Cao
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (H.W.); (Y.Z.); (W.T.); (H.W.); (J.C.)
- Shanghai Engineering Research Center of Breeding Pig, Shanghai 201302, China
| | - Xiang Zhou
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; (X.Z.); (B.L.)
| | - Bang Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding, and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China; (X.Z.); (B.L.)
| | - Jennifer J. Michal
- Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA;
| | - Chun Fan
- Shanghai Laboratory Animal Research Center, Shanghai 201203, China;
| | - Yongsong Tan
- Institute of Animal Husbandry and Veterinary Science, Shanghai Academy of Agricultural Sciences, Shanghai 201106, China; (H.W.); (Y.Z.); (W.T.); (H.W.); (J.C.)
- Shanghai Engineering Research Center of Breeding Pig, Shanghai 201302, China
- Correspondence: ; Tel.: +86-021-34505325
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Nosova AY, Kipen VN, Tsar AI, Lemesh VA. Differentiation of Hybrid Progeny of Silver Carp (Hypophthalmichthys molitrix Val.) and Bighead Carp (H. nobilis Rich.) Based on Microsatellite Polymorphism. RUSS J GENET+ 2020. [DOI: 10.1134/s1022795420030126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Lorenzini R, Fanelli R, Tancredi F, Siclari A, Garofalo L. Matching STR and SNP genotyping to discriminate between wild boar, domestic pigs and their recent hybrids for forensic purposes. Sci Rep 2020; 10:3188. [PMID: 32081854 PMCID: PMC7035276 DOI: 10.1038/s41598-020-59644-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/13/2020] [Indexed: 11/09/2022] Open
Abstract
The genetic discrimination between phylogenetically close taxa can be challenging if their gene pools are not differentiated and there are many shared polymorphisms. The gene flow between wild boar (Sus scrofa) and domestic pig (S. s. domesticus) has never been interrupted from domestication onwards, due to non-stop natural and human-mediated crossbreeding. To date there are no individual genetic markers that are able to distinguish between the two forms, nor even to identify effectively their hybrids. We developed a combined molecular protocol based on multiplex porcine-specific STR-profiling system and new real time PCR-based assays of single polymorphisms in the NR6A1 and MC1R genes to gain high diagnostic power in the differentiation of wild boar, pig and hybrids for forensic purposes. The combined approach correctly assigned individuals to one or the other parental gene pool and identified admixed genotypes. Evidence was found for substantial reduction of false negative results by using multiple marker systems jointly, compared to their use individually. Our protocol is a powerful and cost-effective diagnostic tool that can easily be adopted by most forensic laboratories to assist authorities contrast food adulteration, assure veterinary public health and fight against wildlife crimes, like poaching and illegal detention of wild animals.
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Affiliation(s)
- Rita Lorenzini
- Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana "M. Aleandri", Centro di Referenza Nazionale per la Medicina Forense Veterinaria, Via Tancia 21, 02100, Rieti, Italy.
| | - Rita Fanelli
- Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana "M. Aleandri", Centro di Referenza Nazionale per la Medicina Forense Veterinaria, Via Tancia 21, 02100, Rieti, Italy
| | - Francesco Tancredi
- Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana "M. Aleandri", Via Tancia 21, 02100, Rieti, Italy
| | - Antonino Siclari
- Ente Parco Nazionale dell'Aspromonte, Via Aurora 1, 89057 Gambarie di S. Stefano in Aspromonte, Reggio Calabria, Italy
| | - Luisa Garofalo
- Istituto Zooprofilattico Sperimentale delle Regioni Lazio e Toscana "M. Aleandri", Centro di Referenza Nazionale per la Medicina Forense Veterinaria, Via Tancia 21, 02100, Rieti, Italy
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Rębała K, Rabtsava AA, Kotova SA, Kipen VN, Zhurina NV, Gandzha AI, Tsybovsky IS. STR Profiling for Discrimination between Wild and Domestic Swine Specimens and between Main Breeds of Domestic Pigs Reared in Belarus. PLoS One 2016; 11:e0166563. [PMID: 27851802 PMCID: PMC5112791 DOI: 10.1371/journal.pone.0166563] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 10/30/2016] [Indexed: 12/04/2022] Open
Abstract
A panel comprising 16 short tandem repeats (STRs) and a gender-specific amelogenin marker was worked out and tested for robustness in discrimination between wild and domestic swine subspecies encountered in Europe, between regional populations of wild boars and between main breeds of domestic pigs reared in Belarus. The STR dataset comprised 310 wild boars, inhabiting all administrative regions of Belarus, and 313 domestic pigs, representing three local and three cosmopolitan lines. Additionally, a total of 835 wild boars were genotyped for the presence of melanocortin 1 receptor (MC1R) alleles specific for domestic pigs. Correctness of assignment of STR profiles to appropriate populations was measured by log-likelihood ratios (log-LRs). All samples were correctly identified as wild boars or domestic pigs with average log-LR of 42.4 (LR = 2.6×1018). On the other hand, as many as 50 out of 835 (6.0%) genotyped wild boars from Belarus possessed MC1R alleles specific to domestic pigs, demonstrating supremacy of our STR profiling system over traditional differentiation between wild boars and domestic pigs, based on single binary markers. Mean log-LRs for allocation of wild boars to their regions of origin and of domestic pigs to appropriate breeds were 2.3 (LR = 9.7) and 13.4 (LR = 6.6×105), respectively. Our results demonstrate the developed STR profiling system to be a highly efficient tool for differentiation between wild and domestic swine subspecies and between diverse breeds of domestic pigs as well as for verification of genetic identity of porcine specimens for the purpose of forensic investigations of wildlife crimes, assurance of veterinary public health, parentage control in animal husbandry, food safety management and traceability of livestock products.
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Affiliation(s)
- Krzysztof Rębała
- Department of Forensic Medicine, Medical University of Gdansk, Gdansk, Poland
- * E-mail:
| | - Alina A. Rabtsava
- Scientific and Practical Centre of the State Committee of Forensic Expertises, Minsk, Belarus
| | - Svetlana A. Kotova
- Scientific and Practical Centre of the State Committee of Forensic Expertises, Minsk, Belarus
| | - Viachaslau N. Kipen
- Scientific and Practical Centre of the State Committee of Forensic Expertises, Minsk, Belarus
| | - Natalja V. Zhurina
- Scientific and Practical Centre of the National Academy of Sciences on Animal Husbandry, Zhodino, Belarus
| | - Alla I. Gandzha
- Scientific and Practical Centre of the National Academy of Sciences on Animal Husbandry, Zhodino, Belarus
| | - Iosif S. Tsybovsky
- Scientific and Practical Centre of the State Committee of Forensic Expertises, Minsk, Belarus
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Bloch MS, Paunescu D, Stoessel PR, Mora CA, Stark WJ, Grass RN. Labeling milk along its production chain with DNA encapsulated in silica. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:10615-10620. [PMID: 25295707 DOI: 10.1021/jf503413f] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The capability of tracing a food product along its production chain is important to ensure food safety and product authenticity. For this purpose and as an application example, recently developed Silica Particles with Encapsulated DNA (SPED) were added to milk at concentrations ranging from 0.1 to 100 ppb (μg per kg milk). Thereby the milk, as well as the milk-derived products yoghurt and cheese, could be uniquely labeled with a DNA tag. Procedures for the extraction of the DNA tags from the food matrixes were elaborated and allowed identification and quantification of previously marked products by quantitative polymerase chain reaction (qPCR) with detection limits below 1 ppb of added particles. The applicability of synthetic as well as naturally occurring DNA sequences was shown. The usage of approved food additives as DNA carrier (silica = E551) and the low cost of the technology (<0.1 USD per ton of milk labeled with 10 ppb of SPED) display the technical applicability of this food labeling technology.
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Affiliation(s)
- Madeleine S Bloch
- Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Zurich , Vladimir-Prelog-Weg 1, 8093 Zurich, Switzerland
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Fontanesi L, Ribani A, Scotti E, Utzeri VJ, Veličković N, Dall'Olio S. Differentiation of meat from European wild boars and domestic pigs using polymorphisms in the MC1R and NR6A1 genes. Meat Sci 2014; 98:781-4. [PMID: 25134014 DOI: 10.1016/j.meatsci.2014.07.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Revised: 07/18/2014] [Accepted: 07/24/2014] [Indexed: 11/16/2022]
Abstract
Wild boar meat cannot be easily distinguished from domestic pig meat, especially in processed products, thus it can be fraudulently substituted with cheaper domestic pork. In this study we genotyped polymorphisms in two genes (MC1R, affecting coat color and NR6A1, associated with number of vertebrae) in 293 domestic pigs of five commercial breeds, 111 wild boars sampled in Italy, and 90 in Slovenia and other Western Balkan regions. Allele and genotype frequency data were used to set up a DNA-based method to distinguish meat of wild boars and domestic pigs. Genotyping results indicated that domesticated genes were introgressed into wild boar populations. This complicated the determination of the origin of the meat and would cause a high error rate if markers of only one gene were used. The combined use of polymorphisms in the two analyzed genes substantially reduced false negative results.
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Affiliation(s)
- L Fontanesi
- Department of Agricultural and Food Sciences, Division of Animal Sciences, University of Bologna, Viale Fanin 46, 40127 Bologna, Italy.
| | - A Ribani
- Department of Agricultural and Food Sciences, Division of Animal Sciences, University of Bologna, Viale Fanin 46, 40127 Bologna, Italy
| | - E Scotti
- Department of Agricultural and Food Sciences, Division of Animal Sciences, University of Bologna, Viale Fanin 46, 40127 Bologna, Italy
| | - V J Utzeri
- Department of Agricultural and Food Sciences, Division of Animal Sciences, University of Bologna, Viale Fanin 46, 40127 Bologna, Italy
| | - N Veličković
- Department of Biology and Ecology, Faculty of Sciences, University of Novi Sad, Trg Dositeja Obradovica 2, 21000 Novi Sad, Serbia
| | - S Dall'Olio
- Department of Agricultural and Food Sciences, Division of Animal Sciences, University of Bologna, Viale Fanin 46, 40127 Bologna, Italy
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Establishing a DNA identification system for pigs (Sus scrofa) using a multiplex STR amplification. Forensic Sci Int Genet 2014; 9:12-9. [DOI: 10.1016/j.fsigen.2013.10.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Revised: 10/15/2013] [Accepted: 10/21/2013] [Indexed: 11/18/2022]
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