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Su M, Lin X, Xiao Z, She Y, Deng M, Liu G, Sun B, Guo Y, Liu D, Li Y. Genome-Wide Association Study of Lactation Traits in Chinese Holstein Cows in Southern China. Animals (Basel) 2023; 13:2545. [PMID: 37570353 PMCID: PMC10417049 DOI: 10.3390/ani13152545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/04/2023] [Accepted: 08/06/2023] [Indexed: 08/13/2023] Open
Abstract
Lactation traits are economically important for dairy cows. Southern China has a high-temperature and high-humidity climate, and environmental and genetic interactions greatly impact dairy cattle performance. The aim of this study was to identify novel single-nucleotide polymorphism sites and novel candidate genes associated with lactation traits in Chinese Holstein cows under high-temperature and humidity conditions in southern China. A genome-wide association study was performed for the lactation traits of 392 Chinese Holstein cows, using GGP Bovine 100 K SNP gene chips. Some 23 single nucleotide polymorphic loci significantly associated with lactation traits were screened. Among them, 16 were associated with milk fat rate, 7 with milk protein rate, and 3 with heat stress. A quantitative trait locus that significantly affects milk fat percentage in Chinese Holstein cows was identified within a window of approximately 0.5 Mb in the region of 0.4-0.9 Mb on Bos taurus autosome 14. According to Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses, ten genes (DGAT1, IDH2, CYP11B1, GFUS, CYC1, GPT, PYCR3, OPLAH, ALDH1A3, and NAPRT) associated with lactation fat percentage, milk yield, antioxidant activity, stress resistance, and inflammation and immune response were identified as key candidates for lactation traits. The results of this study will help in the development of an effective selection and breeding program for Chinese Holstein cows in high-temperature and humidity regions.
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Affiliation(s)
- Minqiang Su
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Xiaojue Lin
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Zupeng Xiao
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Yuanhang She
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Ming Deng
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Guangbin Liu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Baoli Sun
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Yongqing Guo
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Dewu Liu
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
| | - Yaokun Li
- College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (M.S.); (X.L.); (Z.X.); (Y.S.); (M.D.); (G.L.); (B.S.); (Y.G.)
- National Local Joint Engineering Research Center of Livestock and Poultry, South China Agricultural University, Guangzhou 510642, China
- Guangdong Key Laboratory of Agricultural Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510640, China
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Tian H, Luo J, Guo P, Li C, Zhang X. C/EBPα promotes triacylglycerol synthesis via regulating PPARG promoter activity in goat mammary epithelial cells. J Anim Sci 2023; 101:skac412. [PMID: 36547378 PMCID: PMC9863032 DOI: 10.1093/jas/skac412] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
CCAAT/enhancer binding protein α (C/EBPα) is the key transcription factor involved in lipid metabolism, however, the role of C/EBPα in milk fat synthesis of dairy goats remains unknown. The objective of the present research was to clarify the function of C/EBPα in goat mammary epithelial cells (GMECs) and its impact on peroxisome proliferator-activated receptor gamma (PPARG) promoter activity. In this study, C/EBPα overexpression increased its mRNA and protein levels by 42-fold and 6-fold, respectively. In contrast, transfecting siRNA targeting C/EBPα decreased its mRNA level to 20% and protein abundance to 80% of the basal level. The contents of lipid droplets, triacylglycerol (TAG), and cholesterol were increased (P < 0.05) in C/EBPα-overexpressing GMECs, and knockdown of C/EBPα led to the opposite results. Overexpression of C/EBPα significantly increased the expression levels of genes involved in TAG synthesis (AGPAT6, DGAT2, P < 0.01), lipid droplet formation (PLIN2, P < 0.01), and fatty acid synthesis (FADS2, P < 0.05; ELOVL6, P < 0.01). Knockdown of C/EBPα decreased (P < 0.05) the expression levels of AGPAT6, DGAT1, DGAT2, PLIN2, FADS2, and ELOVL6. C/EBPα upregulated the expression level of PPARG (P < 0.05), and four C/EBPα binding regions were identified in the PPARG promoter at -1,112 to -1,102 bp, -734 to -724 bp, -248 to -238 bp, and -119 to -109 bp. Knockdown of C/EBPα reduced (P < 0.05) the PPARG promoter activity when the C/EBPα binding regions were mutated at -1,112 to -1,102 bp, -734 to -724 bp, and -248 to -238 bp locations of the promoter. However, the promoter activity did not change when the mutation was located at -119 bp. In conclusion, our results suggest that C/EBPα can promote TAG synthesis in GMECs through its effects on mRNA abundance of genes related to lipid metabolism and regulation of the PPARG promoter activity via C/EBPα binding regions.
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Affiliation(s)
- Huibin Tian
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Jun Luo
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Peng Guo
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Chun Li
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Xueying Zhang
- College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, P. R. China
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Cheng J, Xu D, Chen L, Guo W, Hu G, Liu J, Fu S. CIDEA Regulates De Novo Fatty Acid Synthesis in Bovine Mammary Epithelial Cells by Targeting the AMPK/PPARγ Axis and Regulating SREBP1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:11324-11335. [PMID: 36040348 DOI: 10.1021/acs.jafc.2c05226] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Cell-death-inducing DNA fragmentation factor-α-like effector A (CIDEA) is a lipid-droplet-associated protein that helps to promote lipid metabolism in adipocytes of mice and humans. However, studies on the regulatory mechanism of CIDEA on lipid metabolism in the mammary glands of dairy cows are rare. Therefore, the role of CIDEA in bovine mammary epithelial cells (bMECs) was investigated in this study. The CIDEA expression levels in the mammary glands of high-fat-milk-producing cows were significantly higher compared to those in low-fat-milk-producing cows. Results of in vitro studies in bMECs showed that the inhibition of CIDEA inhibited the expression of fatty acid synthesis-related genes and triglyceride (TAG) synthesis-related genes. Conversely, the overexpression of CIDEA leads to an increase in the content of TAG and fatty acid. The results of mechanistic studies indicated that the overexpression of CIDEA inhibits AMP-activated protein kinase (AMPK) activity, which enhances the expression of peroxisome proliferator-activated receptor-γ (PPARγ) and consequently increases the TAG content. Furthermore, the overexpression of CIDEA promoted the nuclear translocation of sterol regulatory element-binding protein 1 (SREBP1). Therefore, a theoretical framework is provided by this study for the regulation of lipid metabolism in dairy cows by means of nutrition and the hormone targeting of CIDEA.
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Affiliation(s)
- Ji Cheng
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin130062, China
| | - Dianwen Xu
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin130062, China
| | - Lisha Chen
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin130062, China
| | - Wenjin Guo
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin130062, China
| | - Guiqiu Hu
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin130062, China
| | - Juxiong Liu
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin130062, China
| | - Shoupeng Fu
- College of Animal Science and Veterinary Medicine, Jilin University, Changchun, Jilin130062, China
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Yu H, Iqbal A, Fang X, Jiang P, Zhao Z. Transcriptome analysis of CRISPR/Cas9-mediated GPAM -/- in bovine mammary epithelial cell-line unravelled the effects of GPAM gene on lipid metabolism. Gene X 2022; 834:146574. [PMID: 35618221 DOI: 10.1016/j.gene.2022.146574] [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: 11/21/2021] [Revised: 05/05/2022] [Accepted: 05/09/2022] [Indexed: 11/04/2022] Open
Abstract
Glycerol-3-phosphate acyltransferase mitochondrial (GPAM) is an enzyme in animal lipid metabolism pathways that catalyzes the initial and most committed step of glycerolipid biosynthesis. The present study mainly focused on exploring the relationship between the GPAM gene and the lipid metabolism of mammary epithelial cells and the effect of GPAM on the related pathways of lipid metabolism. The GPAM gene was knocked out entirely in bovine mammary epithelial cells(BMECs) using CRISPR/Cas9 technology, and the mechanism by which the GPAM gene regulates lipid metabolism in BMECs was confirmed. Furthermore, after the complete loss of GPAM, BMECs' triglycerides (TGs) and cholesterol (CHOL) levels were significantly decreased (p < 0.05). Concurrently, the content of octanoic acid, a medium-chain saturated fatty acid, increased substantially in BMECs. RNA-seq of GPAM-/- BMECs revealed that GPAM could affect the expression of genes related to lipid metabolism, downregulated the expression of Acyl-CoA synthetase long-chain family member 5 (ACSL5), Fatty Acid Binding Protein 3 (FABP3), Hormone-sensitive lipase (HSL), Protease, serine-2 (PRSS2), 1-Acylglycerol-3-Phosphate O Acyltransferase 4 (AGPAT4), and regulated the milk synthesis metabolism pathway.The findings revealed that a number of genes were expressed, a number of genes were differentially expressed genes (DEGs), and a number of GO terms were enriched, with a number of GO terms considerably increased. Further, the differentially expressed genes (DEGs) were significantly enriched in Fat digestion and absorption pathway, Fatty acid metabolic pathway, Biosynthesis of unsaturated fatty acids, Biosynthesis of unsaturated fatty acids and steroids, NF-kappa B signalling pathway, MAPK signalling pathway. In conclusion, the current research results show that GPAM is a crucial regulator of BMEC lipid metabolism. GPAM-/- BMEC may also become useful genetic materials and tools for future research on gene functions related to lipid and fatty acid metabolism. This study will contribute to the discovery of gene regulation and molecular mechanisms in milk fat synthesis.
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Affiliation(s)
- Haibin Yu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong 524088, PR China
| | - Ambreen Iqbal
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong 524088, PR China
| | - Xibi Fang
- College of Animal Science, Jilin University, Changchun 130062, PR China
| | - Ping Jiang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong 524088, PR China.
| | - Zhihui Zhao
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong 524088, PR China.
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Yuan X, Shi W, Jiang J, Li Z, Fu P, Yang C, Rehman SU, Pauciullo A, Liu Q, Shi D. Comparative metabolomics analysis of milk components between Italian Mediterranean buffaloes and Chinese Holstein cows based on LC-MS/MS technology. PLoS One 2022; 17:e0262878. [PMID: 35077464 PMCID: PMC8789157 DOI: 10.1371/journal.pone.0262878] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 01/06/2022] [Indexed: 01/08/2023] Open
Abstract
Buffalo and cow milk have a very different composition in terms of fat, protein, and total solids. For a better knowledge of such a difference, the milk metabolic profiles and characteristics of metabolites was investigated in Italian Mediterranean buffaloes and Chinese Holstein cows were investigated by liquid chromatography tandem-mass spectrometry (LC-MS/MS) in this study. Totally, 23 differential metabolites were identified to be significantly different in the milk from the two species of which 15 were up-regulated and 8 down-regulated in Italian Mediterranean buffaloes. Metabolic pathway analysis revealed that 4 metabolites (choline, acetylcholine, nicotinamide and uric acid) were significantly enriched in glycerophospholipid metabolism, nicotinate and nicotinamide metabolism, glycine, serine and threonine metabolism, as well as purine metabolism. The results provided further insights for a deep understanding of the potential metabolic mechanisms responsible for the different performance of Italian Mediterranean buffaloes' and Chinese Holstein cows' milk. The findings will offer new tools for the improvement and novel directions for the development of dairy industry.
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Affiliation(s)
- Xiang Yuan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Wen Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Jianping Jiang
- Guangxi Engineering Technology Research Center of Chinese Medicinal Materials Stock Breeding, Guangxi Botanical Garden of Medicinal Plants, Nanning, China
| | - Zhipeng Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Penghui Fu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Chunyan Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Saif ur Rehman
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
| | - Alfredo Pauciullo
- Department of Agricultural, Forest and Food Sciences, University of Torino, Grugliasco (TO), Italy
- * E-mail: (AP); (QL); (DS)
| | - Qingyou Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
- * E-mail: (AP); (QL); (DS)
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, China
- * E-mail: (AP); (QL); (DS)
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The variation in promoter sequences of the Akt3 gene between cow and buffalo revealed different responses against mastitis. J Genet Eng Biotechnol 2021; 19:164. [PMID: 34677734 PMCID: PMC8536807 DOI: 10.1186/s43141-021-00258-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Accepted: 09/28/2021] [Indexed: 11/23/2022]
Abstract
Background Serine/threonine kinase 3 (AKT3) is a protein-coding gene that is associated with several cattle immune diseases including different tumors and cancers. The objective of this study was to investigate the differences in structures and functions of AKT3 of cow and buffalo cattle. Methods The sequence differences of gene-coding sequence (CDS) and core promoter region of AKT3 in cow and buffalo were analyzed by using bioinformatics tools and PCR sequencing. Also, the functional analysis of promoter regulating gene expression by RT-PCR was performed using 500 Holstein cows and buffalos. And, evaluation of AKT3 inflammatory response to the lipopolysaccharide (LPS)-induced mastitis was performed between both species. Results The results revealed the variation in 6 exons out of 13 exons of the two species of CDS. Also, 4 different regions in 3-kb promoters of the AKT3 gene were significantly different between cow and buffalo species, in which cow’s AKT3 promoter sequence region was started from − 371 to − 1247, while in buffalo, the sequence was started from − 371 to − 969 of the promoter crucial region. Thus, the promoter was overexpressed in cows compared to buffaloes. As a result, significant differences (P < 0.05) between the two species in the AKT3 gene expression level related to the LPS stimulation in their mammary epithelial cell line. Conclusions This study emphasized the great importance of the structural differences of AKT3 between the animal species on their different responses against immune diseases like mastitis.
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