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He L, Wang W, Wang X, Zhang D, Zhang Y, Zhao Y, Zhao L, Li X, Cheng J, Xu D, Ma Z, Yang X, Huang Z, Cai Y, Liu X, Chen Z, Weng X, Lin C, Gong P, Zhang X. Identification of the FGB gene polymorphism and analysis of its association with fat deposition traits in Hu sheep. Anim Biotechnol 2024; 35:2344207. [PMID: 38669223 DOI: 10.1080/10495398.2024.2344207] [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: 04/28/2024]
Abstract
As a crucial economic trait, fat deposition is directly related to carcass quality and feed efficiency in sheep. The purpose of this study was to investigate the polymorphisms of the FGB gene related to fat deposition and detect the expression features of the FGB gene in different adipose tissues of sheep by using Sanger sequencing, MassARRAY® SNP technique, and quantitative real-time PCR (qRT-PCR). Results showed that in the intron region of the FGB gene, a SNP g. 3378953 A > T has been identified, and significant association was found between perirenal fat weight, perirenal fat relative weight, mesenteric fat weight, and mesenteric fat relative weight (P < 0.05). Moreover, qRT-PCR analysis showed that FGB was expressed in all three adipose tissues, and FGB gene expression level in the AA genotype was significantly lower than that in the AT or TT genotypes (P < 0.05). Therefore, the FGB gene can be used as a candidate gene to reduce fat deposition in Hu sheep breeding, and the selection of the AA genotype in Hu sheep in production practice is more conducive to improving production efficiency.
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Affiliation(s)
- Lijuan He
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Weimin Wang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaojuan Wang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Deyin Zhang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Yukun Zhang
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Yuan Zhao
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Liming Zhao
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Xiaolong Li
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Jiangbo Cheng
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Dan Xu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Zongwu Ma
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Xiaobin Yang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Zhiqiang Huang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Youxin Cai
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Xiaoqiang Liu
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Zhanyu Chen
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
| | - Xiuxiu Weng
- State Key Laboratory of Herbage Improvement and Grassland Agro-ecosystems, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, Gansu, China
| | - Changchun Lin
- Institute of Animal Husbandry Quality Standards, Xinjiang Academy of Animal Science, Urumqi, China
| | - Ping Gong
- Institute of Animal Husbandry Quality Standards, Xinjiang Academy of Animal Science, Urumqi, China
| | - Xiaoxue Zhang
- College of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, China
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Javier ELR, Gabriel MMJ, Candelario SCJ, Manuel PBG. Maternal effects and its importance in the genetic evaluations of preweaning live weight traits of beef cattle. A review. Trop Anim Health Prod 2024; 56:260. [PMID: 39292374 DOI: 10.1007/s11250-024-04142-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 09/11/2024] [Indexed: 09/19/2024]
Abstract
Maternal effects in cattle genetics are defined as the causal influence of the phenotype or maternal genotype on the offspring's phenotype by effects occurring when the genetic and environmental characteristics of the mother influence the phenotype of the offspring beyond the direct inheritance of genes. Its relevance has been strongly described in genetic models focused on the genetic improvement of preweaning traits in cow-calf beef cattle production systems. Here, basic concepts and the importance of maternal effects when using linear and animal model procedures for genetic evaluations of growth and live-weight traits in beef cattle are reviewed and discussed. A brief history of estimation methods from classical studies to recent studies used for the development of animal models for studying maternal effects is also provided. Some important biometric concepts for maternal effect estimation are described, and the antagonism between direct genetic effects and maternal effects, its biological basis, and sources of error in the estimation of direct genetic and maternal covariance are discussed. Finally, some genomic perspectives are presented.
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Affiliation(s)
- Estrada-León Raciel Javier
- Tecnológico Nacional de México, Instituto Tecnológico Superior de Calkiní. 24900, Calkiní, Campeche, México
| | - Magaña-Monforte Juan Gabriel
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Campus de Ciencias Biológicas y Agropecuarias. 97100, Mérida, Yucatán, México
| | - Segura-Correa José Candelario
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Campus de Ciencias Biológicas y Agropecuarias. 97100, Mérida, Yucatán, México
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Kusza S, Badaoui B, Wanjala G. Insights into the genomic homogeneity of Moroccan indigenous sheep breeds though the lens of runs of homozygosity. Sci Rep 2024; 14:16515. [PMID: 39019985 PMCID: PMC11255268 DOI: 10.1038/s41598-024-67558-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 07/12/2024] [Indexed: 07/19/2024] Open
Abstract
Numerous studies have indicated that Morocco's indigenous sheep breeds are genetically homogenous, posing a risk to their survival in the challenging harsh climate conditions where they predominantly inhabit. To understand the genetic behind genetic homogeneity through the lens of runs of homozygosity (ROH), we analyzed the whole genome sequences of five indigenous sheep breeds (Beni Guil, Ouled Djellal, D'man, Sardi, Timahdite and Admixed).The results from principal component, admixture, Fst, and neighbour joining tree analyses consistently showed a homogenous genetic structure. This structure was characterized by an average length of 1.83 Mb for runs of homozygosity (ROH) segments, with a limited number of long ROH segments (24-48 Mb and > 48 Mb). The most common ROH segments were those ranging from 1-6 Mb. The most significant regions of homozygosity (ROH Islands) were mostly observed in two chromosomes, namely Chr1 and Chr5. Specifically, ROH Islands were exclusively discovered in the Ouled Djellal breed on Chr1, whereas Chr5 exhibited ROH Islands in all breeds. The analysis of ROH Island and iHS technique was employed to detect signatures of selection on Chr1 and Chr5. The results indicate that Chr5 had a high level of homogeneity, with the same genes being discovered across all breeds. In contrast, Chr1 displays some genetic variances between breeds. Genes identified on Chr5 included SLC39A1, IL23A, CAST, IL5, IL13, and IL4 which are responsible for immune response while genes identified on Chr1 include SOD1, SLAMF9, RTP4, CLDN1, and PRKAA2. ROH segment profile and effective population sizes patterns suggests that the genetic uniformity of studied breeds is the outcome of events that transpired between 250 and 300 generations ago. This research not only contributes to the understanding of ROH distribution across breeds but helps design and implement native sheep breeding and conservation strategies in Morocco. Future research, incorporating a broader sample size and utilizing the pangenome for reference, is recommended to further elucidate these breeds' genomic landscapes and adaptive mechanisms.
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Affiliation(s)
- Szilvia Kusza
- Faculty of Agricultural and Food Sciences and Environmental Management, Centre for Agricultural Genomics and Biotechnology, University of Debrecen, Egyetem tér 1., 4032, Debrecen, Hungary.
| | - Bouabid Badaoui
- Faculty of Sciences, Centre de Biotechnologies Végétales et Microbiennes, Biodiversité et Environnement, Mohammed V University in Rabat, Rabat, Morocco
- African Sustainable Agriculture Research Institute (ASARI),, Mohammed VI Polytechnic University (UM6P), Laâyoune, Morocco
| | - George Wanjala
- Faculty of Agricultural and Food Sciences and Environmental Management, Centre for Agricultural Genomics and Biotechnology, University of Debrecen, Egyetem tér 1., 4032, Debrecen, Hungary
- Doctoral School of Animal Science, University of Debrecen, Böszörményi út 138., 4032, Debrecen, Hungary
- Institute of Animal Sciences and Wildlife Management, University of Szeged, Andrássy út 15., 6800, Hódmezővásárhely, Hungary
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Halli K, König S, Giambra IJ. Association study between SNP markers located in meat quality candidate genes with intramuscular fat content in an endangered dual-purpose cattle population. Transl Anim Sci 2024; 8:txae066. [PMID: 38737521 PMCID: PMC11088282 DOI: 10.1093/tas/txae066] [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: 12/07/2023] [Accepted: 04/22/2024] [Indexed: 05/14/2024] Open
Abstract
The aim of this study was to associate single nucleotide polymorphisms (SNP) of the bovine calcium-activated neutral protease µ-calpain, calpastatin, diacylglycerol-O-acyltransferase, adipose fatty acid binding protein, retinoic acid receptor-related orphan receptor C (RORC), and thyroglobulin (TG) gene with intramuscular fat content (IMF). Therefore, 542 animals of the cattle breed "Rotes Höhenvieh" (RHV) were phenotyped for IMF. Genotyping of the animals was performed using polymerase chain reaction-restriction fragment length polymorphism tests for six SNP from candidate genes for meat quality traits. In addition, we calculated allele substitution and dominance effects on IMF. A subgroup of animals (n = 44, reduced dataset) with extraordinary high IMF was analyzed separately. The mean IMF content was 2.5% (SD: 2.8) but ranged from 0.02% to 23.9%, underlining the breeds' potential for quality meat production. Allele and genotype frequencies for all SNP were similar in the complete and reduced dataset. Association analyses in the complete dataset revealed the strongest effects of RORC on IMF (P = 0.075). The log-transformed least-squares mean for IMF of genotype g.3290GG was 0.45 ± 0.16, 0.26 ± 0.14 for genotype g.3290GT, and 0.32 ± 0.14 for genotype g.3290TT. In the reduced dataset, we found a significant effect (P < 0.05) of the g.422C>T-SNP of TG on IMF, with highest IMF for genotype CT (0.91 ± 0.17), lowest IMF for genotype TT (0.37 ± 0.25), and medium IMF for genotype CC (0.59 ± 0.16; log-transformed values). Compared to the complete dataset, allele substitution effects increased in the reduced dataset for most of the SNP, possibly due to the selective genotyping strategy, with focus on animals with highest IMF implying strong phenotypic IMF contrast. Dominance effects were small in both datasets, related to the high heritability of IMF. Results indicated RHV breed particularities regarding the effects of meat quality genes on IMF. An explanation might be the breeding history of RHV with focus on adaptation and resilience in harsh outdoor systems. Consequently, it is imperative to develop breed-specific selection strategies. Allele substitution and dominance effects were in a similar direction in both datasets, suggesting the same breeding approaches for different RHV strains in different regions. Nevertheless, a selective genotyping approach (reduced dataset), contributed to more pronounced genotype effect differences on IMF and dominance values.
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Affiliation(s)
- Kathrin Halli
- Institute of Animal Breeding and Genetics, Justus-Liebig-University, 35390 Giessen, Germany
| | - Sven König
- Institute of Animal Breeding and Genetics, Justus-Liebig-University, 35390 Giessen, Germany
| | - Isabella J Giambra
- Institute of Animal Breeding and Genetics, Justus-Liebig-University, 35390 Giessen, Germany
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Drachmann FF, Christensen M, Esberg J, Lauridsen T, Fogh A, Young JF, Therkildsen M. Beef-on-dairy: Meat quality of veal and prediction of intramuscular fat using the Q-FOM™ Beef camera at the 5th-6th thoracic vertebra. Meat Sci 2024; 213:109503. [PMID: 38579510 DOI: 10.1016/j.meatsci.2024.109503] [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: 11/01/2023] [Revised: 03/12/2024] [Accepted: 03/25/2024] [Indexed: 04/07/2024]
Abstract
This study aims to describe the meat quality of young Holstein (HOL) beef-on-dairy heifers and bulls sired by Angus (ANG, n = 109), Charolais (CHA, n = 101) and Danish Blue (DBL, n = 127), and to investigate the performance of the handheld vision-based Q-FOM™ Beef camera in predicting the intramuscular fat concentration (IMF%) in M. longissimus thoracis from carcasses quartered at the 5th-6th thoracic vertebra. The results showed significant differences between crossbreeds and sexes on carcass characteristics and meat quality. DBL × HOL had the highest EUROP conformation scores, whereas ANG × HOL had darker meat with higher IMF% (3.52%) compared to CHA × HOL (2.99%) and DBL × HOL (2.51%). Bulls had higher EUROP conformation scores than heifers, and heifers had higher IMF% (3.70%) than bulls (2.31%). These findings indicate the potential for producing high-quality meat from beef-on-dairy heifers and ANG bulls. The IMF% prediction model for Q-FOM performed well with R2 = 0.91 and root mean squared error of cross validation, RMSECV = 1.33%. The performance of the prediction model on the beef-on-dairy veal subsample ranging from 0.9 to 7.4% IMF had lower accuracy (R2 = 0.48) and the prediction error (RMSEveal) was 1.00%. When grouping beef-on-dairy veal carcasses into three IMF% classes (2.5% IMF bins), 62.6% of the carcasses were accurately predicted. Furthermore, Q-FOM IMF% predictions and chemically determined IMF% were similar for each combination of sex and crossbreed, revealing a potential of Q-FOM IMF% predictions to be used in breeding, when aiming for higher meat quality.
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Affiliation(s)
- Fie F Drachmann
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark
| | | | - Jakob Esberg
- Frontmatec A/S, Hassellunden 9, 2765 Smoerum, Denmark
| | | | - Anders Fogh
- SEGES Innovation P/S, Agro Food Park 15, 8200 Aarhus N, Denmark
| | - Jette F Young
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark
| | - Margrethe Therkildsen
- Department of Food Science, Aarhus University, Agro Food Park 48, 8200 Aarhus N, Denmark.
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Chen G, Lin Z, Peng H, Zhang S, Zhang Z, Zhang X, Nie Q, Luo W. The transmembrane protein TMEM182 promotes fat deposition and alters metabolomics and lipidomics. Int J Biol Macromol 2024; 259:129144. [PMID: 38181918 DOI: 10.1016/j.ijbiomac.2023.129144] [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: 10/29/2023] [Revised: 12/10/2023] [Accepted: 12/28/2023] [Indexed: 01/07/2024]
Abstract
TMEM182, a transmembrane protein highly expressed in muscle and adipose tissues, plays a crucial role in muscle cell differentiation, metabolism, and signaling. However, its role in fat deposition and metabolism is still unknown. In this study, we used overexpression and knockout models to examine the impact of TMEM182 on fat synthesis and metabolism. Our results showed that TMEM182 overexpression increased the expression of fat synthesis-related genes and promoted the differentiation of preadipocytes into fat cells. In TMEM182 knockout mice, there was a significant decrease in abdominal fat deposition. RNA sequencing results showed that TMEM182 overexpression in preadipocytes enhanced the activity of pathways related to fat formation, ECM-receptor interaction, and cell adhesion. Furthermore, our analysis using UPLC-MS/MS showed that TMEM182 significantly altered the metabolite and lipid content and composition in chicken breast muscle. Specifically, TMEM182 increased the content of amino acids and their derivatives in chicken breast muscle, promoting amino acid metabolic pathways. Lipidomics also revealed a significant increase in the content of glycerophospholipids, sphingolipids, and phospholipids in the breast muscle after TMEM182 overexpression. These findings suggest that TMEM182 plays a crucial role in regulating fat deposition and metabolism, making it a potential target for treating obesity-related diseases and animal breeding.
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Affiliation(s)
- Genghua Chen
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Zetong Lin
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Haoqi Peng
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Shuai Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Zihao Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Xiquan Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Qinghua Nie
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China
| | - Wen Luo
- College of Animal Science, South China Agricultural University, Guangzhou, Guangdong 510642, China; Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou, Guangdong 510642, China; State Key Laboratory of Livestock and Poultry Breeding, Lingnan Guangdong Laboratory of Agriculture, South China Agricultural University, Guangzhou 510642, China.
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Peng W, Fu C, Shu S, Wang G, Wang H, Yue B, Zhang M, Liu X, Liu Y, Zhang J, Zhong J, Wang J. Whole-genome resequencing of major populations revealed domestication-related genes in yaks. BMC Genomics 2024; 25:69. [PMID: 38233755 PMCID: PMC10795378 DOI: 10.1186/s12864-024-09993-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 01/08/2024] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND The yak is a symbol of the Qinghai-Tibet Plateau and provides important basic resources for human life on the plateau. Domestic yaks have been subjected to strong artificial selection and environmental pressures over the long-term. Understanding the molecular mechanisms of phenotypic differences in yak populations can reveal key functional genes involved in the domestication process and improve genetic breeding. MATERIAL AND METHOD Here, we re-sequenced 80 yaks (Maiwa, Yushu, and Huanhu populations) to identify single-nucleotide polymorphisms (SNPs) as genetic variants. After filtering and quality control, remaining SNPs were kept to identify the genome-wide regions of selective sweeps associated with domestic traits. The four methods (π, XPEHH, iHS, and XP-nSL) were used to detect the population genetic separation. RESULTS By comparing the differences in the population stratification, linkage disequilibrium decay rate, and characteristic selective sweep signals, we identified 203 putative selective regions of domestic traits, 45 of which were mapped to 27 known genes. They were clustered into 4 major GO biological process terms. All known genes were associated with seven major domestication traits, such as dwarfism (ANKRD28), milk (HECW1, HECW2, and OSBPL2), meat (SPATA5 and GRHL2), fertility (BTBD11 and ARFIP1), adaptation (NCKAP5, ANTXR1, LAMA5, OSBPL2, AOC2, and RYR2), growth (GRHL2, GRID2, SMARCAL1, and EPHB2), and the immune system (INPP5D and ADCYAP1R1). CONCLUSIONS We provided there is an obvious genetic different among domestic progress in these three yak populations. Our findings improve the understanding of the major genetic switches and domestic processes among yak populations.
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Affiliation(s)
- Wei Peng
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, 810016, China
| | - Changqi Fu
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, 810016, China
| | - Shi Shu
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, 810016, China
| | - Guowen Wang
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, 810016, China
| | - Hui Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Sichuan Province and Ministry of Education), Southwest Minzu University, Chengdu, 610041, China
| | - Binglin Yue
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Sichuan Province and Ministry of Education), Southwest Minzu University, Chengdu, 610041, China
| | - Ming Zhang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Sichuan Province and Ministry of Education), Southwest Minzu University, Chengdu, 610041, China
| | - Xinrui Liu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Sichuan Province and Ministry of Education), Southwest Minzu University, Chengdu, 610041, China
| | - Yaxin Liu
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Sichuan Province and Ministry of Education), Southwest Minzu University, Chengdu, 610041, China
| | - Jun Zhang
- Qinghai Academy of Animal Science and Veterinary Medicine, Qinghai University, Xining, 810016, China.
| | - Jincheng Zhong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Sichuan Province and Ministry of Education), Southwest Minzu University, Chengdu, 610041, China.
| | - Jiabo Wang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization (Sichuan Province and Ministry of Education), Southwest Minzu University, Chengdu, 610041, China.
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EL Nagar AG, Heddi I, Sosa-Madrid BS, Blasco A, Hernández P, Ibáñez-Escriche N. Genome-Wide Association Study of Maternal Genetic Effects on Intramuscular Fat and Fatty Acid Composition in Rabbits. Animals (Basel) 2023; 13:3071. [PMID: 37835677 PMCID: PMC10571580 DOI: 10.3390/ani13193071] [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: 08/31/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Maternal genetic effects (MGE) could affect meat quality traits such as intramuscular fat (IMF) and its fatty acid composition. However, it has been scarcely studied, especially in rabbits. The objectives of the present study were, first, to assess the importance of MGE on intramuscular fat and fatty acid composition by applying a Bayesian maternal animal model in two rabbit lines divergently selected for IMF. The second objective was to identify genomic regions and candidate genes of MGE that are associated with the traits of these offspring, using Bayesian methods in a Genome Wide Association Study (GWAS). Quantitative analyses were performed using data from 1982 rabbits, and 349 animals from the 9th generation and 76 dams of the 8th generation with 88,512 SNPs were used for the GWAS. The studied traits were IMF, saturated fatty acids (total SFA, C14:0; myristic acid, C16:0; palmitic acid and C18:0; stearic acid), monounsaturated fatty acids (total MUFA, C16:1n-7; palmitoleic acid and C18:1n-9; oleic acid), polyunsaturated fatty acids (total PUFA, C18:2n-6; linoleic acid, C18:3n-3; α-linolenic acid and C20:4n-6; arachidonic acid), MUFA/SFA and PUFA/SFA. The proportion of phenotypic variance explained by the maternal genetic effect ranged from 8 to 22% for IMF, depending on the model. For fatty acid composition, the proportion of phenotypic variance explained by maternal genetic effects varied from 10% (C18:0) to 46% (MUFA) in a model including both direct and additive maternal genetic effects, together with the common litter effect as a random variable. In particular, there were significant direct maternal genetic correlations for C16:0, C18:1n9, C18:2n6, SFA, MUFA, and PUFA with values ranging from -0.53 to -0.89. Relevant associated genomic regions were located on the rabbit chromosomes (OCU) OCU1, OCU5 and OCU19 containing some relevant candidates (TANC2, ACE, MAP3K3, TEX2, PRKCA, SH3GL2, CNTLN, RPGRIP1L and FTO) related to lipid metabolism, binding, and obesity. These regions explained about 1.2 to 13.9% of the total genomic variance of the traits studied. Our results showed an important maternal genetic effect on IMF and its fatty acid composition in rabbits and identified promising candidate genes associated with these traits.
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Affiliation(s)
- Ayman G. EL Nagar
- Institute for Animal Science and Technology, Universitat Politècnica de València, 46022 Valencia, Spain; (A.G.E.N.)
- Department of Animal Production, Faculty of Agriculture at Moshtohor, Benha University, Benha 13736, Egypt
| | - Imen Heddi
- Centro Regional de Selección y Reproducción Animal (CERSYRA), Av. del Vino, 10, 13300 Valdepeñas, Spain
| | - Bolívar Samuel Sosa-Madrid
- Institute for Animal Science and Technology, Universitat Politècnica de València, 46022 Valencia, Spain; (A.G.E.N.)
| | - Agustín Blasco
- Institute for Animal Science and Technology, Universitat Politècnica de València, 46022 Valencia, Spain; (A.G.E.N.)
| | - Pilar Hernández
- Institute for Animal Science and Technology, Universitat Politècnica de València, 46022 Valencia, Spain; (A.G.E.N.)
| | - Noelia Ibáñez-Escriche
- Institute for Animal Science and Technology, Universitat Politècnica de València, 46022 Valencia, Spain; (A.G.E.N.)
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Zegeye T, Belay G, Vallejo-Trujillo A, Han J, Hanotte O. Genome-wide diversity and admixture of five indigenous cattle populations from the Tigray region of northern Ethiopia. Front Genet 2023; 14:1050365. [PMID: 37600659 PMCID: PMC10432725 DOI: 10.3389/fgene.2023.1050365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 07/14/2023] [Indexed: 08/22/2023] Open
Abstract
The Tigray region, where we found around eight per cent of the indigenous cattle population of Ethiopia, is considered as the historic centre of the country, with the ancient pre-Aksumite and Aksumite civilisations in contact with the civilisations of the Fertile Crescent and the Indian subcontinent. Here, we used whole genome sequencing data to characterise the genomic diversity, relatedness, and admixture of five cattle populations (Abergelle, Arado, Begait, Erob, and Raya) indigenous to the Tigray region of Ethiopia. We detected 28 to 29 million SNPs and 2.7 to 2.9 million indels in each population, of which 7% of SNPs and 34% of indels were novel. Functional annotation of the variants showed around 0.01% SNPs and 0.22%-0.27% indels in coding regions. Enrichment analysis of genes overlapping missense private SNPs revealed 20 significant GO terms and KEGG pathways that were shared by or specific to breeds. They included important genes associated with morphology (SCN4A, TAS1R2 and KCNG4), milk yield (GABRG1), meat quality (MMRN2, VWC2), feed efficiency (PCDH8 and SLC26A3), immune response (LAMC1, PCDH18, CELSR1, TLR6 and ITGA5), heat resistance (NPFFR1 and HTR7) and genes belonging to the olfactory gene family, which may be related to adaptation to harsh environments. Tigray indigenous cattle are very diverse. Their genome-wide average nucleotide diversity ranged from 0.0035 to 0.0036. The number of heterozygous SNPs was about 0.6-0.7 times higher than homozygous ones. The within-breed average number of ROHs ranged from 777.82 to 1000.45, with the average sum of the length of ROHs ranging from 122.01 Mbp to 163.88 Mbp. The genomic inbreeding coefficients differed among animals and breeds, reaching up to 10% in some Begait and Raya animals. Tigray indigenous cattle shared a common ancestry with Asian indicine (85.6%-88.7%) and African taurine (11.3%-14.1%) cattle, with very small, if any, European taurine introgression. This study identified high within-breed genetic diversity representing an opportunity for breeding improvement programs and, also, significant novel variants that could increase the number of known cattle variants, an important contribution to the knowledge of domestic cattle genetic diversity.
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Affiliation(s)
- Tsadkan Zegeye
- Mekelle Agricultural Research Center, Tigray Agricultural Research Institute, Mekelle, Ethiopia
- Department of Microbial, Cellular and Molecular Biology, Addis Ababa University, Addis Ababa, Ethiopia
- Live Gene—CTLGH, International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
| | - Gurja Belay
- Department of Microbial, Cellular and Molecular Biology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Adriana Vallejo-Trujillo
- Centre for Tropical Livestock Genetics and Health (CTLGH), The Roslin Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - Jianlin Han
- Live Gene—CTLGH, International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
- CAAS-ILRI Joint Laboratory on Livestock and Forage Genetic Resources, Institute of Animal Science, Chinese Academy of Agricultural Sciences (CAAS), Beijing, China
| | - Olivier Hanotte
- Live Gene—CTLGH, International Livestock Research Institute (ILRI), Addis Ababa, Ethiopia
- Centre for Tropical Livestock Genetics and Health (CTLGH), The Roslin Institute, The University of Edinburgh, Edinburgh, United Kingdom
- Cells, Organism and Molecular Genetics, School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
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