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Hu G, Song M, Wang Y, Hao K, Wang J, Zhang Y. Using a modified piggyBac transposon-combined Cre/loxP system to produce selectable reporter-free transgenic bovine mammary epithelial cells for somatic cell nuclear transfer. Genesis 2023:e23510. [PMID: 36748563 DOI: 10.1002/dvg.23510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 01/05/2023] [Accepted: 01/09/2023] [Indexed: 02/08/2023]
Abstract
Transposon systems are widely used for genetic engineering in various model organisms. PiggyBac (PB) has recently been confirmed to have highly efficient transposition in the mouse germ line and mammalian cell lines. In this study, we used a modified PB transposon system mediated by PB transposase (PBase) mRNA carrying the human lactoferrin gene driven by bovine β-casein promoter to transfect bovine mammary epithelial cells (BMECs), and the selectable reporter in two stable transgenic BMEC clones was removed using cell-permeant Cre recombinase. These reporter-free transgenic BMECs were used as donor cells for somatic cell nuclear transfer (SCNT) and exhibited a competence of SCNT embryos similar to stable transgenic BMECs and nontransgenic BMECs. The comprehensive information from this study provided a modified approach using an altered PB transposon system mediated by PBase mRNA in vitro and combined with the Cre/loxP system to produce transgenic and selectable reporter-free donor nuclei for SCNT. Consequently, the production of safe bovine mammary bioreactors can be promoted.
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Affiliation(s)
- Guangdong Hu
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Meijun Song
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Yan Wang
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Kexing Hao
- College of Animal Science and Technology, Shihezi University, Shihezi, China
| | - Jing Wang
- College of Animal Science and Technology, Shihezi University, Shihezi, China.,College of Veterinary Medicine, Northwest A&F University, Yangling, China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Yangling, China
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2
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Sampaio de Oliveira KB, Leite ML, Rodrigues GR, Duque HM, da Costa RA, Cunha VA, de Loiola Costa LS, da Cunha NB, Franco OL, Dias SC. Strategies for recombinant production of antimicrobial peptides with pharmacological potential. Expert Rev Clin Pharmacol 2020; 13:367-390. [PMID: 32357080 DOI: 10.1080/17512433.2020.1764347] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
INTRODUCTION The need to develop new drugs for the control of pathogenic microorganisms has redoubled efforts to prospect for antimicrobial peptides (AMPs) from natural sources and to characterize its structure and function. These molecules present a broad spectrum of action against different microorganisms and frequently present promiscuous action, with anticancer and immunomodulatory activities. Furthermore, AMPs can be used as biopharmaceuticals in the treatment of hospital-acquired infections and other serious diseases with relevant social and economic impacts.Areas covered: The low yield and the therefore difficult extraction and purification process in AMPs are problems that limit their industrial application and scientific research. Thus, optimized heterologous expression systems were developed to significantly boost AMP yields, allow high efficiency in purification and structural optimization for the increase of therapeutic activity.Expert opinion: This review provides an update on recent developments in the recombinant production of ribosomal and non-ribosomal synthesis of AMPs and on strategies to increase the expression of genes encoding AMPs at the transcriptional and translational levels and regulation of the post-translational modifications. Moreover, there are detailed reports of AMPs that have already reached marketable status or are in the pipeline under advanced stages of preclinical testing.
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Affiliation(s)
- Kamila Botelho Sampaio de Oliveira
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Michel Lopes Leite
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Gisele Regina Rodrigues
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Harry Morales Duque
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Rosiane Andrade da Costa
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Victor Albuquerque Cunha
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Lorena Sousa de Loiola Costa
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Nicolau Brito da Cunha
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil
| | - Octavio Luiz Franco
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil.,Universidade de Brasília, Pós-graduação em Patologia Molecular, Campus Darcy Ribeiro , Brasília, Brazil.,S-Inova Biotech, Pós-graduação em Biotecnologia, Universidade Católica Dom Bosco , Campo Grande, Mato Grosso do Sul, Brazil
| | - Simoni Campos Dias
- Centro de Análises Proteômicas e Bioquímicas, Pós-graduação em Ciências Genômicas e Biotecnologia, Universidade Católica de Brasília , Brasília, Brazil.,Universidade de Brasília, Pós-graduação em Biologia Animal, Campus Darcy Ribeiro , Brasília, Brazil
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3
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Pinzon-Arteaga C, Snyder MD, Lazzarotto CR, Moreno NF, Juras R, Raudsepp T, Golding MC, Varner DD, Long CR. Efficient correction of a deleterious point mutation in primary horse fibroblasts with CRISPR-Cas9. Sci Rep 2020; 10:7411. [PMID: 32366884 PMCID: PMC7198616 DOI: 10.1038/s41598-020-62723-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 03/04/2020] [Indexed: 12/26/2022] Open
Abstract
Phenotypic selection during animal domestication has resulted in unwanted incorporation of deleterious mutations. In horses, the autosomal recessive condition known as Glycogen Branching Enzyme Deficiency (GBED) is the result of one of these deleterious mutations (102C > A), in the first exon of the GBE1 gene (GBE1102C>A). With recent advances in genome editing, this type of genetic mutation can be precisely repaired. In this study, we used the RNA-guided nuclease CRISPR-Cas9 (clustered regularly-interspaced short palindromic repeats/CRISPR-associated protein 9) to correct the GBE1102C>A mutation in a primary fibroblast cell line derived from a high genetic merit heterozygous stallion. To correct this mutation by homologous recombination (HR), we designed a series of single guide RNAs (sgRNAs) flanking the mutation and provided different single-stranded donor DNA templates. The distance between the Cas9-mediated double-stranded break (DSB) to the mutation site, rather than DSB efficiency, was the primary determinant for successful HR. This framework can be used for targeting other harmful diseases in animal populations.
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Affiliation(s)
- Carlos Pinzon-Arteaga
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas, USA
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, 75390, USA
| | - Matthew D Snyder
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas, USA
| | | | - Nicolas F Moreno
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas, USA
| | - Rytis Juras
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA
| | - Terje Raudsepp
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA
| | - Michael C Golding
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas, USA
| | - Dickson D Varner
- Department of Large Animal Clinical Sciences, Texas A&M University, College Station, TX, USA
| | - Charles R Long
- Department of Veterinary Physiology and Pharmacology, Texas A&M University, College Station, Texas, USA.
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He XY, Ma LB, He XN, Si WT, Zheng YM. Improved development of somatic cell cloned bovine embryos by a mammary gland epithelia cells in vitro model. J Vet Sci 2017; 17:145-52. [PMID: 26243608 PMCID: PMC4921662 DOI: 10.4142/jvs.2016.17.2.145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 06/17/2015] [Accepted: 07/31/2015] [Indexed: 12/18/2022] Open
Abstract
Previous studies have established a bovine mammary gland epithelia cells in vitro model by the adenovirus-mediated telomerase (hTERT-bMGEs). The present study was conducted to confirm whether hTERT-bMGEs were effective target cells to improve the efficiency of transgenic expression and somatic cell nuclear transfer (SCNT). To accomplish this, a mammary-specific vector encoding human lysozyme and green fluorescent protein was used to verify the transgenic efficiency of hTERT-bMGEs, and untreated bovine mammary gland epithelial cells (bMGEs) were used as a control group. The results showed that the hTERT-bMGEs group had much higher transgenic efficiency and protein expression than the bMGEs group. Furthermore, the nontransgenic and transgenic hTERT-bMGEs were used as donor cells to evaluate the efficiency of SCNT. There were no significant differences in rates of cleavage or blastocysts or hatched blastocysts of cloned embryos from nontransgenic hTERT-bMGEs at passage 18 and 28 groups (82.8% vs. 81.9%, 28.6% vs. 24.8%, 58.6% vs. 55.3%, respectively) and the transgenic group (80.8%, 26.5% and 53.4%); however, they were significantly higher than the bMGEs group (71.2%, 12.8% and 14.8%), (p < 0.05). We confirmed that hTERT-bMGEs could serve as effective target cells for improving development of somatic cell cloned cattle embryos.
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Affiliation(s)
- Xiao-Ying He
- School of Life Science and Technology, Inner Mongolia University of Science & Technology, Baotou 014010, China
| | - Li-Bing Ma
- School of Life Science and Technology, Inner Mongolia University of Science & Technology, Baotou 014010, China
| | - Xiao-Ning He
- Research and Development Center for Tissue Engineering, Xi'an 710048, China
| | - Wan-Tong Si
- School of Life Science and Technology, Inner Mongolia University of Science & Technology, Baotou 014010, China
| | - Yue-Mao Zheng
- College of Veterinary Medicine, Northwest A&F University, Shenyang 712100, China.,Key Laboratory of Animal Reproductive Endocrinology & Embryo Engineering, Ministry of Agriculture, Shenyang 712100, China
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5
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Zhang M, Zheng Y, Chen W, Zhang Y, Guo Z, Zhang Y, Liu J. Identifying an optimal promoter sequence of goat β-lactoglobulin gene for constructing high-expression vectors in mammary epithelial cells. Small Rumin Res 2015. [DOI: 10.1016/j.smallrumres.2015.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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6
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Cooper CA, Maga EA, Murray JD. Production of human lactoferrin and lysozyme in the milk of transgenic dairy animals: past, present, and future. Transgenic Res 2015; 24:605-14. [PMID: 26059245 DOI: 10.1007/s11248-015-9885-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 06/03/2015] [Indexed: 12/29/2022]
Abstract
Genetic engineering, which was first developed in the 1980s, allows for specific additions to animals' genomes that are not possible through conventional breeding. Using genetic engineering to improve agricultural animals was first suggested when the technology was in the early stages of development by Palmiter et al. (Nature 300:611-615, 1982). One of the first agricultural applications identified was generating transgenic dairy animals that could produce altered or novel proteins in their milk. Human milk contains high levels of antimicrobial proteins that are found in low concentrations in the milk of ruminants, including the antimicrobial proteins lactoferrin and lysozyme. Lactoferrin and lysozyme are both part of the innate immune system and are secreted in tears, mucus, and throughout the gastrointestinal (GI) tract. Due to their antimicrobial properties and abundance in human milk, multiple lines of transgenic dairy animals that produce either human lactoferrin or human lysozyme have been developed. The focus of this review is to catalogue the different lines of genetically engineered dairy animals that produce either recombinant lactoferrin or lysozyme that have been generated over the years as well as compare the wealth of research that has been done on the in vitro and in vivo effects of the milk they produce. While recent advances including the development of CRISPRs and TALENs have removed many of the technical barriers to predictable and efficient genetic engineering in agricultural species, there are still many political and regulatory hurdles before genetic engineering can be used in agriculture. It is important to consider the substantial amount of work that has been done thus far on well established lines of genetically engineered animals evaluating both the animals themselves and the products they yield to identify the most effective path forward for future research and acceptance of this technology.
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Affiliation(s)
- Caitlin A Cooper
- Department of Animal Science, University of California-Davis, 1 Shields Ave, Davis, CA, USA,
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Ru K, Su F, Zheng Y, Zhang Y, Luo Y, Guo Z, He X, Liu X, Zhang J, Liu J, Zhang Y. Inducible expression of enhanced green fluorescent protein by interleukin-1α, interleukin-1β and Toll-like receptor 2 promoters in goat mammary epithelial cells in response to bacterial challenges. Vet J 2014; 203:85-91. [PMID: 25496912 DOI: 10.1016/j.tvjl.2014.10.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 10/21/2014] [Accepted: 10/27/2014] [Indexed: 10/24/2022]
Abstract
The development of a bacteria-inducible expression system has several advantages compared with persistent expression of anti-bacterial proteins in milk to prevent and treat mastitis. The present study determined whether mastitis responsive promoters could regulate enhanced green fluorescent protein (EGFP) expression in goat mammary epithelial cells (GMECs) in response to challenges with Escherichia coli, Staphylococcus aureus or Streptococcus agalactiae. The level of expression of interleukin (IL)-1α was significantly increased in GMECs challenged with E. coli, S. aureus or S. agalactiae compared with untreated GMECs. IL-1β was induced by E. coli and S. aureus, while Toll-like receptor 2 (TLR2) was induced by E. coli only. GMECs were transfected with IL-1α, IL-1β and TLR2 promoter-EGFP reporter gene lentiviral expression vectors and the levels of expression of EGFP were measured by flow cytometry and Western blot analysis after bacterial challenge. EGFP expression driven by the IL-1α and IL-1β promoters was higher in GMECs challenged with E. coli, S. aureus or S. agalactiae than in untreated GMECs. There were no differences in EGFP expression driven by the TLR2 promoter between GMECs challenged with S. aureus or S. agalactiae and untreated GMECs, but EGFP expression was significantly increased in GMECs challenged with E. coli. Overall, these results indicate that the promoters of some bacteria-inducible genes can regulate EGFP expression in GMECs in response to bacterial challenges. This bacteria-inducible expression strategy could be used for production of mastitis resistant animals by regulating the expression of anti-bacterial proteins in the mammary gland.
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Affiliation(s)
- Kun Ru
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Feng Su
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Yuemao Zheng
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Yijun Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Yan Luo
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Zekun Guo
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Xiaoli He
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Xin Liu
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Jingcheng Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
| | - Jun Liu
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China.
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling 712100, Shaanxi, China
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Construction of a recombinant human insulin expression vector for mammary gland-specific expression in buffalo (Bubalus bubalis) mammary epithelial cell line. Mol Biol Rep 2014; 41:5891-902. [DOI: 10.1007/s11033-014-3464-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2013] [Accepted: 06/14/2014] [Indexed: 11/29/2022]
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9
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Liu J, Luo Y, Ge H, Han C, Zhang H, Wang Y, Su J, Quan F, Gao M, Zhang Y. Anti-bacterial activity of recombinant human β-defensin-3 secreted in the milk of transgenic goats produced by somatic cell nuclear transfer. PLoS One 2013; 8:e65379. [PMID: 23799010 PMCID: PMC3683007 DOI: 10.1371/journal.pone.0065379] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Accepted: 04/24/2013] [Indexed: 11/28/2022] Open
Abstract
The present study was conducted to determine whether recombinant human β-defensin-3 (rHBD3) in the milk of transgenic goats has an anti-bacterial activity against Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) and Streptococcus agalactiae (S. agalactiae) that could cause mastitis. A HBD3 mammary-specific expression vector was transfected by electroporation into goat fetal fibroblasts which were used to produce fourteen healthy transgenic goats by somatic cell nuclear transfer. The expression level of rHBD3 in the milk of the six transgenic goats ranged from 98 to 121 µg/ml at 15 days of lactation, and was maintained at 90–111 µg/ml during the following 2 months. Milk samples from transgenic goats showed an obvious inhibitory activity against E. coli, S. aureus and S. agalactiae in vitro. The minimal inhibitory concentrations of rHBD3 in milk against E. coli, S. aureus and S. agalactiae were 9.5–10.5, 21.8–23.0 and 17.3–18.5 µg/mL, respectively, which was similar to those of the HBD3 standard (P>0.05). The in vivo anti-bacterial activities of rHBD3 in milk were examined by intramammary infusion of viable bacterial inoculums. We observed that 9/10 and 8/10 glands of non-transgenic goats infused with S. aureus and E. coli became infected. The mean numbers of viable bacteria went up to 2.9×103 and 95.4×103 CFU/ml at 48 h after infusion, respectively; the mean somatic cell counts (SCC) in infected glands reached up to 260.4×105 and 622.2×105 cells/ml, which were significantly higher than the SCC in uninfected goat glands. In contrast, no bacteria was presented in glands of transgenic goats and PBS-infused controls, and the SSC did not significantly change throughout the period. Moreover, the compositions and protein profiles of milk from transgenic and non-transgenic goats were identical. The present study demonstrated that HBD3 were an effective anti-bacterial protein to enhance the mastitis resistance of dairy animals.
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Affiliation(s)
- Jun Liu
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Yan Luo
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Hengtao Ge
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Chengquan Han
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Hui Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Yongsheng Wang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Jianmin Su
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Fusheng Quan
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Mingqing Gao
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
| | - Yong Zhang
- College of Veterinary Medicine, Northwest A&F University, Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, Yangling, Shaanxi, China
- * E-mail:
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