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Tang H, Ma Y, Li J, Zhang Z, Li W, Cai C, Zhang L, Li Z, Tian Y, Zhang Y, Ji J, Han L, Kang X, Jiang R, Han R. Identification and genetic analysis of major gene ST3GAL4 related to serum alkaline phosphatase in chicken. Res Vet Sci 2023; 155:115-123. [PMID: 36680949 DOI: 10.1016/j.rvsc.2022.12.001] [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: 02/17/2022] [Revised: 11/18/2022] [Accepted: 12/02/2022] [Indexed: 12/14/2022]
Abstract
Alkaline phosphatase (ALP) is a marker of osteoblast maturation and an important indicator of bone metabolism. The activity of ALP can reflect the bone metabolism and growth traits of animals, so the polymorphism affecting ALP expression deserves further study. In this study, we identified an SNP site in ST3GAL4 found by genome-wide association studies (GWAS) in previous studies, 8 SNPs were also identified by DNA sequencing. Interestingly, there were 4 SNPs (rs475471G > A, rs475533C > T, rs475621A > G, rs475647C > A) completely linked by haplotype analysis. Therefore, we selected a tag SNP rs475471G > A to further analyze the ALP level of different genotypes in Hubbard leg disease population and an F2 chicken resource population produced by Anka and Gushi chickens and carried out population genetic analysis in 18 chicken breeds. Association analysis showed that this QTL within ST3GAL4 was highly correlated with ALP level. The mutant individuals with genotype AA had the highest ALP level, followed by GA and GG carriers. The mutant individual carriers of AA and GA genotype had higher values for body weight (BW), chest width (CW), body slanting length (BSL), pelvis width (PW) at 4-week, the semi-evisceration weight (SEW), evisceration weight (EW) and Leg weight (LW) than GG genotypes. The amplification and typing of 4852 DNA samples from 18 different breeds showed GG genotype mainly existed in egg-type chickens and dual-type chickens, while the AA genotype was mainly distributed in commercial broilers and F2 resource population. The individual carriers of the AA genotype had the highest ALP and showed better growth performance. Besides, tissue expression analysis used Cobb broiler showed significant differences between different genotypes in the spleen and duodenum. Taken together, this was the first time to determine 9 SNPs within ST3GAL4 related to ALP in chickens, 4 of them were complete linkage with each other, which provides useful information on the mutation of ST3GAL4 and could predict the serum ALP level of chicken early and as an effective potential molecular breeding marker for chickens.
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Affiliation(s)
- Hehe Tang
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Yanchao Ma
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Jianzeng Li
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Zhenzhen Zhang
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Wenting Li
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Chunxia Cai
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Lujie Zhang
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Zhuanjian Li
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Yadong Tian
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Yanhua Zhang
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China
| | - Jinqing Ji
- Henan Husbandry Breau, Zhengzhou 450008, China
| | - Lu Han
- Henan Husbandry Breau, Zhengzhou 450008, China
| | - Xiangtao Kang
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China.
| | - Ruirui Jiang
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China.
| | - Ruili Han
- College of animal science and technology, Henan Agricultural University, Zhengzhou, Henan Province 4500046, China; Henan Key Laboratory for Innovation and Utilization of Chicken Germplasm Resources, Zhengzhou, Henan Province 450046, China.
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Molecular Characterization, Expression Profile, and A 21-bp Indel within the ASB9 Gene and Its Associations with Chicken Production Traits. Genes (Basel) 2023; 14:genes14020339. [PMID: 36833266 PMCID: PMC9957280 DOI: 10.3390/genes14020339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/24/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
A growing number of studies have shown that members of the ankyrin repeat and suppressors of cytokine signaling (SOCS) box-containing protein (ASB) family are extensively involved in biological processes such as cell growth, tissue development, insulin signaling, ubiquitination, protein degradation, and skeletal muscle membrane protein formation, while the specific biological role of ankyrin-repeat and SOCS box protein 9 (ASB9) remains unclear. In this study, a 21 bp indel in the intron of ASB9 was identified for the first time in 2641 individuals from 11 different breeds and an F2 resource population, and differences were observed among individuals with different genotypes (II, ID, and DD). An association study of a cross-designed F2 resource population revealed that the 21-bp indel was significantly related to growth and carcass traits. The significantly associated growth traits were body weight (BW) at 4, 6, 8, 10, and 12 weeks of age; sternal length (SL) at 4, 8, and 12 weeks of age; body slope length (BSL) at 4, 8, and 12 weeks of age; shank girth (SG) at 4 and 12 weeks of age; tibia length (TL) at 12 weeks of age; and pelvic width (PW) at 4 weeks of age (p < 0.05). This indel was also significantly correlated with carcass traits including semievisceration weight (SEW), evisceration weight (EW), claw weight (CLW), breast muscle weight (BMW), leg weight (LeW), leg muscle weight (LMW), claw rate (CLR), and shedding weight (ShW) (p < 0.05). In commercial broilers, the II genotype was the dominant genotype and underwent extensive selection. Interestingly, the ASB9 gene was expressed at significantly higher levels in the leg muscles of Arbor Acres broilers than those of Lushi chickens, while the opposite was true for the breast muscles. In summary, the 21-bp indel in the ASB9 gene significantly influenced the expression of the ASB9 gene in muscle tissue and was associated with multiple growth and carcass traits in the F2 resource population. These findings suggested that the 21-bp indel within the ASB9 gene could be used in marker-assisted selection breeding for traits related to chicken growth.
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Hou D, Qin P, Niu X, Li T, Chen B, Wei C, Jing Z, Han R, Li H, Liu X, Tian Y, Li D, Li Z, Cai H, Kang X. Genome-wide identification evolution and expression of vestigial-like gene family in chicken. Anim Biotechnol 2022; 33:1602-1612. [PMID: 34032551 DOI: 10.1080/10495398.2021.1920425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Vestigial-like (Vgll) genes are widespread in vertebrates and play an important role in muscle development. In this study, we used bioinformatics methods to systematically identify the chicken VGLL family in the whole genome and investigated its evolutionary history and gene structure features. Tissue expression spectra combined with real-time PCR data were used to analyze the organizational expression pattern of the genes. Based on the maximum likelihood method, a phylogenetic tree of the VGLL family was constructed, and 94 VGLL genes were identified in 24 breeds, among which four VGLL family genes were identified in the chicken genome. Ten motifs were detected in the VGLL genes, and the analysis of introns combined with gene structure revealed that the family was conserved during evolution. Tissue expression analysis suggested that the expression profiles of the VGLL family genes in 16 tissues differed between LU Shi and AA broilers. In addition, a single gene (VGLL2) showed increased expression in chickens at embryonic days 10-16 and was involved in the growth and development of skeletal muscle in chickens in the embryonic stage. In summary, VGLL genes are involved in chicken muscle growth and development, which provides useful information for subsequent functional studies of VGLL genes.
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Affiliation(s)
- Dan Hou
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Panpan Qin
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Xinran Niu
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Tong Li
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Bingjie Chen
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Chengjie Wei
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Zhenzhu Jing
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Ruili Han
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Hong Li
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Xiaojun Liu
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Yadong Tian
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Donghua Li
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Zhuanjian Li
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Hanfang Cai
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
| | - Xiangtao Kang
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, College of Animal Science and Technology, Henan Agricultural University, Zhengzhou, China
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Vallejo-Trujillo A, Kebede A, Lozano-Jaramillo M, Dessie T, Smith J, Hanotte O, Gheyas AA. Ecological niche modelling for delineating livestock ecotypes and exploring environmental genomic adaptation: The example of Ethiopian village chicken. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.866587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In evolutionary ecology, an “ecotype” is a population that is genetically adapted to specific environmental conditions. Environmental and genetic characterisation of livestock ecotypes can play a crucial role in conservation and breeding improvement, particularly to achieve climate resilience. However, livestock ecotypes are often arbitrarily defined without a detailed characterisation of their agro-ecologies. In this study, we employ a novel integrated approach, combining ecological niche modelling (ENM) with genomics, to delineate ecotypes based on environmental characterisation of population habitats and unravel the signatures of adaptive selection in the ecotype genomes. The method was applied on 25 Ethiopian village chicken populations representing diverse agro-climatic conditions. ENM identified six key environmental drivers of adaptation and delineated 12 ecotypes. Within-ecotype selection signature analyses (using Hp and iHS methods) identified 1,056 candidate sweep regions (SRs) associated with diverse biological processes. While most SRs are ecotype-specific, the biological pathways perturbed by overlapping genes are largely shared among ecotypes. A few biological pathways were shared amongst most ecotypes and the genes involved showed functions important for scavenging chickens, e.g., neuronal development/processes, immune response, vision development, and learning. Genotype-environment association using redundancy analysis (RDA) allowed for correlating ∼33% of the SRs with major environmental drivers. Inspection of some strong candidate genes from selection signature analysis and RDA showed highly relevant functions in relation to the major environmental drivers of corresponding ecotypes. This integrated approach offers a powerful tool to gain insight into the complex processes of adaptive evolution including the genotype × environment (G × E) interactions.
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Bassitta M, Brown RP, Pérez-Cembranos A, Pérez-Mellado V, Castro JA, Picornell A, Ramon C. Genomic signatures of drift and selection driven by predation and human pressure in an insular lizard. Sci Rep 2021; 11:6136. [PMID: 33731784 PMCID: PMC7971075 DOI: 10.1038/s41598-021-85591-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 03/02/2021] [Indexed: 01/27/2023] Open
Abstract
Genomic divergence was studied in 10 small insular populations of the endangered Balearic Islands lizard (Podarcis lilfordi) using double digest restriction-site associated DNA sequencing. The objectives were to establish levels of divergence among populations, investigate the impact of population size on genetic variability and to evaluate the role of different environmental factors on local adaptation. Analyses of 72,846 SNPs supported a highly differentiated genetic structure, being the populations with the lowest population size (Porros, Foradada and Esclatasang islets) the most divergent, indicative of greater genetic drift. Outlier tests identified ~ 2% of loci as candidates for selection. Genomic divergence-Enviroment Association analyses were performed using redundancy analyses based on SNPs putatively under selection, detecting predation and human pressure as the environmental variables with the greatest explanatory power. Geographical distributions of populations and environmental factors appear to be fundamental drivers of divergence. These results support the combined role of genetic drift and divergent selection in shaping the genetic structure of these endemic island lizard populations.
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Affiliation(s)
- Marta Bassitta
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain.
| | - Richard P Brown
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Ana Pérez-Cembranos
- Departamento de Biología Animal, Edificio de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain
| | - Valentín Pérez-Mellado
- Departamento de Biología Animal, Edificio de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain
| | - José A Castro
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain
| | - Antònia Picornell
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain
| | - Cori Ramon
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain
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Copy number variation of the HPGDS gene in the Ashidan yak and its associations with growth traits. Gene 2020; 772:145382. [PMID: 33373661 DOI: 10.1016/j.gene.2020.145382] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/05/2020] [Accepted: 12/18/2020] [Indexed: 02/06/2023]
Abstract
Copy number variation (CNV) is a structural variation at the submicroscopic level of the genome, which can affect gene-related phenotypes by changing genes dosage and transcript structure. Hematopoietic prostaglandin D synthase (HPGDS) is a member whose functions are closely related to weight gain and inflammatory diseases of the glutathione S-transferase (GSTs) family. In this study, the growth characteristics (body weight, withers height, body length, and chest girth) of 336 Ashidan yaks were monitored at four stages (6 months, 12 months, 18 months, and 30 months). In addition, CNV of the HPGDS gene was detected, discovered relationships of CNV with growth traits, and explored the level of gene expression. Based on the statistical analysis by IBM SPSS software, significant correlations were observed between HPGDS-CNV and body weight in 12-month-old yak (P < 0.01), 18-month-old yak (P < 0.001) and 30-month-old yak (P < 0.001) and body length in 18-month-old yak (P < 0.05) and 30-month-old yak (P < 0.05), respectively. Additionally, the individuals with gain copy number type performed better in body weight and body length than those with normal or loss copy number type. To our best of knowledge, this is the first time to make efforts to probe into the role of HPGDS-CNV and its interaction with livestock growth traits. Our results suggested that the CNV of the HPGDS gene may be an active candidate gene for the marker-assisted selection (MAS) of yaks.
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Molecular characterization and a duplicated 31-bp indel within the LDB2 gene and its associations with production performance in chickens. Gene 2020; 761:145046. [PMID: 32781192 DOI: 10.1016/j.gene.2020.145046] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 08/01/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023]
Abstract
Many studies have shown that the LDB2 gene plays a regulatory role in retinal development and the cell cycle, but its biological role remains unclear. In this study, a 31-bp indel in the LDB2 gene was found for the first time on the basis of 2797 individuals from 10 different breeds, which led to different genotypes among individuals (II, ID and DD). Among these genotypes, DD was the most dominant. Association analysis of an F2 resource population crossed with the Gushi (GS) chicken and Anka chicken showed that the DD genotype conferred a significantly greater semi-evisceration weight (SEW, 1108.665 g ± 6.263), evisceration weight (EW, 927.455 g ± 5.424), carcass weight (CW, 1197.306 g ± 6.443), breast muscle weight (BMW, 71.05 g ± 0.574), and leg muscle weight (LMW, 100.303 g ± 0.677) than the ID genotype (SEW, 1059.079 g ± 16.86; EW, 879.459 g ± 14.446; CW, 1141.821 g ± 17.176; BMW, 67.164 g ± 1.523; and LMW, 96.163 g ± 1.823). In addition, LDB2 gene expression in different breeds was significantly higher in the breast muscles and leg muscles than in other tissues. The expression level in the breast muscle differed significantly among stages of GS chicken development, with the highest expression observed at 6 weeks. The expression levels in the pectoral muscles differed significantly among Ross 308 genotypes. In summary, we studied the relationships between a 31-bp indel in the LDB2 gene and economic traits in chickens. The indel was significantly correlated with multiple growth and carcass traits in the F2 resource population and affected the expression of the LDB2 gene in muscle tissue. In short, our study revealed that the LDB2 gene 31-bp indel can be used as a potential genetic marker for molecular breeding.
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Fu R, Ren T, Li W, Liang J, Mo G, Luo W, He D, Liang S, Zhang X. A Novel 65-bp Indel in the GOLGB1 Gene Is Associated with Chicken Growth and Carcass Traits. Animals (Basel) 2020; 10:ani10030475. [PMID: 32178328 PMCID: PMC7142648 DOI: 10.3390/ani10030475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 02/28/2020] [Accepted: 03/04/2020] [Indexed: 01/18/2023] Open
Abstract
Simple Summary Many Chinese-local chickens show slow-growing and low-producing performance, which is not conductive to the development of the poultry industry. The identification of thousands of indels in the last twenty years has helped us to make progress in animal genetics and breeding. Golgin subfamily B member 1 (GOLGB1) is located on chromosome 1 in chickens. Previous study showed that a large number of QTLs on the chicken chromosome 1 were related to the important economic traits. However, the biological function of GOLGB1 gene in chickens is still unclear. In this study, we detected a novel 65-bp indel in the fifth intron of the chicken GOLGB1 gene. Correlation analysis between the 65-bp indel and chicken growth and carcass traits was performed through a yellow chicken population, which is commercial. Results revealed that this 65-bp indel was significantly associated with chicken body weight, highly significantly associated with neck weight, abdominal fat weight, abdominal fat percentage, and the yellow index b of breast. These findings hinted that the 65-bp indel in GOLGB1 could be assigned to a molecular marker in chicken breeding and enhance production in the chicken industry. Abstract Golgin subfamily B member 1 (GOLGB1) gene encodes the coat protein 1 vesicle inhibiting factor, giantin. Previous study showed that mutations of the GOLGB1 gene are associated with dozens of human developmental disorders and diseases. However, the biological function of GOLGB1 gene in chicken is still unclear. In this study, we detected a novel 65-bp insertion/deletion (indel) polymorphism in the chicken GOLGB1 intron 5. Association of this indel with chicken growth and carcass traits was analyzed in a yellow chicken population. Results showed that this 65-bp indel was significantly associated with chicken body weight (p < 0.05), highly significantly associated with neck weight, abdominal fat weight, abdominal fat percentage and the yellow index b of breast (p < 0.01). Analysis of genetic parameters indicated that “I” was the predominant allele. Except for the yellow index b of breast, II genotype individuals had the best growth characteristics, by comparison with the ID genotype and DD genotype individuals. Moreover, the mRNA expression of GOLGB1 was detected in the liver tissue of chicken with different GOLGB1 genotypes, where the DD genotype displayed high expression levels. These findings hinted that the 65-bp indel in GOLGB1 could be assigned to a molecular marker in chicken breeding and enhance production in the chicken industry.
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Affiliation(s)
- Rong Fu
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Tuanhui Ren
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Wangyu Li
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Jiaying Liang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Guodong Mo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Wen Luo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Danlin He
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Shaodong Liang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
| | - Xiquan Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou 510642, China; (R.F.); (T.R.); (W.L.); (J.L.); (G.M.); (W.L.); (D.H.); (S.L.)
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, and Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, Guangzhou 510642, China
- Correspondence:
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Jing Z, Wang X, Cheng Y, Wei C, Hou D, Li T, Li W, Han R, Li H, Sun G, Tian Y, Liu X, Kang X, Li Z. Detection of CNV in the SH3RF2 gene and its effects on growth and carcass traits in chickens. BMC Genet 2020; 21:22. [PMID: 32111154 PMCID: PMC7048116 DOI: 10.1186/s12863-020-0831-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 02/25/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND The SH3RF2 gene is a protein-coding gene located in a quantitative trait locus associated with body weight, and its deletion has been shown to be positively associated with body weight in chickens. RESULTS In the present study, CNV in the SH3RF2 gene was detected in 4079 individuals from 17 populations, including the "Gushi ×Anka" F2 resource population and populations of Chinese native chickens, commercial layers, and commercial broilers. The F2 resource population was then used to investigate the genetic effects of the chicken SH3RF2 gene. The results showed that the local chickens and commercial layers were all homozygous for the wild-type allele. Deletion mutation individuals were detected in all of the commercial broiler breeds except Hubbard broiler. A total of, 798 individuals in the F2 resource group were used to analyze the effects of genotype (DD/ID/II) on chicken production traits. The results showed that CNV was associated with 2-, 6-, 10-, and 12-week body weight (P = 0.026, 0.042, 0.021 and 0.039 respectively) and significantly associated with 8-week breast bone length (P = 0.045). The mutation was significantly associated with 8-week body weight (P = 0.007) and 4-week breast bone length (P = 0.010). CNV was significantly associated with evisceration weight, leg muscle weight, carcass weight, breast muscle weight and gizzard weight (P = 0.032, 0.033, 0.045, 0.004 and 0.000, respectively). CONCLUSIONS CNV of the SH3RF2 gene contributed to variation in the growth and weight gain of chickens.
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Affiliation(s)
- Zhenzhu Jing
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Xinlei Wang
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Yingying Cheng
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Chengjie Wei
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Dan Hou
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Tong Li
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Wenya Li
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Ruili Han
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Hong Li
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Guirong Sun
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Yadong Tian
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Xiaojun Liu
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Xiangtao Kang
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China
| | - Zhuanjian Li
- Department of Animal genetics and breeding, College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046, Henan, China.
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, 450002, Henan, China.
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10
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Association of a new 99-bp indel of the CEL gene promoter region with phenotypic traits in chickens. Sci Rep 2020; 10:3215. [PMID: 32081917 PMCID: PMC7035288 DOI: 10.1038/s41598-020-60168-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 02/04/2020] [Indexed: 02/08/2023] Open
Abstract
Carboxyl ester lipase (CEL) encodes a cholesterol ester hydrolase that is secreted into the duodenum as a component of pancreatic juice. The objective of this study was to characterize the CEL gene, investigate the association between the CEL promoter variants and chicken phenotypic traits, and explore the CEL gene regulatory mechanism. An insertion/deletion (indel) caused by a 99-bp insertion fragment was shown for the first time in the chicken CEL promoter, and large differences in allelic frequency were found among commercial breeds, indigenous and feral birds. Association analysis demonstrated that this indel site had significant effects on shank length, shank girth, chest breadth at 8 weeks (p < 0.01), evisceration weight, sebum weight, breast muscle weight, and leg weight (p < 0.05). Tissue expression profiles showed extremely high levels of the CEL gene in pancreatic tissue. Moreover, the expression levels of the genes APOB, MTTP, APOV1 and SREBF1, which are involved in lipid transport, were significantly reduced by adding a 4% oxidized soybean oil diet treatment at the individual level and transfecting the embryonic primary hepatocytes with a CEL-overexpression vector. Interestingly, the results showed that the expression level of the II homozygous genotype was significantly higher than that of the ID and DD genotypes, while individuals with DD genotypes had higher phenotypic values. Therefore, these data suggested that the CEL gene might affect body growth by participating in hepatic lipoprotein metabolism and that the 99-bp indel polymorphism could be a potentially useful genetic marker for improving the economically important traits of chickens.
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11
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Jia C, Li C, Fu D, Chu M, Zan L, Wang H, Liang C, Yan P. Identification of genetic loci associated with growth traits at weaning in yak through a genome-wide association study. Anim Genet 2019; 51:300-305. [PMID: 31877578 DOI: 10.1111/age.12897] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2019] [Indexed: 12/18/2022]
Abstract
A multilocus GWAS was performed to explore the genetic architecture of four growth traits in yak. In total, 354 female yaks for which measurements of body weight (BW), withers height (WH), body length (BL) and chest girth (CG) at weaning were available underwent genotyping with the Illumina BovineHD BeadChip (770K). After quality control, we retained 98 688 SNPs and 354 animals for GWAS analysis. We identified seven, 18, seven and nine SNPs (corresponding to seven, 17, seven and eight candidate genes) associated with BW, WH, BL and CG at weaning respectively. Interestingly, most of these candidate genes were reported to be involved in growth-related processes such as muscle formation, lipid deposition, feed efficiency, carcass composition and development of the central and peripheral nervous system. Our results offer novel insight into the molecular architecture underpinning yak growth traits. Further functional analyses are thus warranted to explore the molecular mechanisms whereby these genes affect these traits of interest.
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Affiliation(s)
- C Jia
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.,College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - C Li
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - D Fu
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - M Chu
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - L Zan
- College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - H Wang
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - C Liang
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - P Yan
- Key Laboratory of Yak Breeding Engineering of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
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12
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Copy Number Variation of the CADM2 Gene and Its Association with Growth Traits in Yak. Animals (Basel) 2019; 9:ani9121008. [PMID: 31766342 PMCID: PMC6940794 DOI: 10.3390/ani9121008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Cell adhesion molecule 2 (CADM2), also known as synaptic cell adhesion molecule 2 (SYNCAM2), is the mediator of synaptic signals enriched in the brain. Overlaps between copy number variation (CNV) regions in CADM2 and quantitative trait loci (QTL) related to body weight have been clarified in a previous study. In this study, two loci were amplified in the CADM2 gene (CNV1: 235,915 bp, exon 1 and partial intron 1; CNV2: 60,430 bp, intron 9) to explore the relationship between CNV types in the CADM2 gene and growth traits in 350 Ashidan yaks. Association analysis illustrated that no significant effect was found on growth traits in CNV1. However, the CNV2 mutation had a significant effect on body weight at the sixth month (p < 0.05). Individuals with the gain-type copy number variation CNV2 were significantly superior to those with loss- or normal-type in terms of body weight (p < 0.05). In summary, this study confirmed that CADM2-CNVs affect growth traits in yaks, and may be candidate genes for successful yak breeding and genetics projects. Abstract Copy number variation (CNV) is currently accepted as a common source of genetic variation. It is reported that CNVs may influence the resistance to disease and complex economic traits, such as residual feed intake, muscle formation, and fat deposition in livestock. Cell adhesion molecule 2 (CADM2) is expressed widely in the brain and adipose tissue and can regulate body weight through the central nervous system. Growth traits are important economic traits for animal selection. In this study, we aimed to explore the effect of CADM2 gene copy number variants on yak growth traits. Here, two CNVs in the CADM2 gene were investigated using the quantitative polymerase chain reaction (qPCR), and the association of the CNVs with growth traits in yak was analyzed using statistical methods by SPSS software. Differences were considered significant if the p value was < 0.05. Statistical analysis indicated significant association of CADM2-CNV2 with the body weight of the Chinese Ashidan yak. A significant effect of CNV2 (p < 0.05) was found on body weight at 6 months. In CNV2, the gain-type copy number variation exhibited greater performance than the other variants, with greater body weight observed at 6 months (p < 0.05). To the best of our knowledge, this is the first attempt to investigate the function of CADM2-CNVs and their association with growth traits in animals. This may be a useful candidate marker in marker-assisted selection of yaks.
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13
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Liang K, Wang X, Tian X, Geng R, Li W, Jing Z, Han R, Tian Y, Liu X, Kang X, Li Z. Molecular characterization and an 80-bp indel polymorphism within the prolactin receptor ( PRLR) gene and its associations with chicken growth and carcass traits. 3 Biotech 2019; 9:296. [PMID: 31321200 DOI: 10.1007/s13205-019-1827-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/07/2019] [Indexed: 01/09/2023] Open
Abstract
The prolactin receptor (PRLR), a type I cytokine receptor, must bind prolactin (PRL) to act on target cells to mediate various physiological functions, including reproduction and lactation. This study identified an 80-bp insertion/deletion (indel) polymorphism in the 3'-untranslated region (3'-UTR) of the chicken PRLR gene in 3736 individuals from 15 breeds and analyzed its associations with growth and carcass traits in an F2 resource population. The results of the association analysis indicated that the 80-bp indel polymorphism was significantly (P < 0.05) or very significantly (P < 0.01) associated with multiple growth and carcass traits, such as body weight, leg weight, and shank length. In addition, we found that during the breeding process of commercial laying hens and commercial broilers, the 80-bp indel locus was artificially selected for the II genotype. Together, our findings reveal that this 80-bp indel polymorphism has potential as a new molecular marker for marker-assisted selection of chicken growth and carcass traits.
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Affiliation(s)
- Ke Liang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Xiangnan Wang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Xiaoxiao Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Rui Geng
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Wenya Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Zhenzhu Jing
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Ruili Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Yadong Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Xiaojun Liu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Xiangtao Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
| | - Zhuanjian Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450046 China
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14
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Cui W, Liu N, Zhang X, Zhang Y, Qu L, Yan H, Lan X, Dong W, Pan C. A 20-bp insertion/deletion (indel) polymorphism within the CDC25A gene and its associations with growth traits in goat. Arch Anim Breed 2019; 62:353-360. [PMID: 31807646 PMCID: PMC6852853 DOI: 10.5194/aab-62-353-2019] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Accepted: 05/17/2019] [Indexed: 12/28/2022] Open
Abstract
Cell division cycle 25A (CDC25A), a member of the CDC25 family of phosphatases, is
required for progression from G1 to the S phase of the cell cycle. CDC25A provides an essential function during early embryonic development in mice,
suggesting that it plays an important role in growth and development. In
this study, we used mathematical expectation (ME) methods to identify a
20-bp insertion/deletion (indel) polymorphism of CDC25A gene in Shaanbei White
Cashmere (SBWC) goats. We also investigated the association between this
20-bp indel and growth-related traits in SBWC goats. Association results
showed that the indel was related to growth traits (height at hip cross,
cannon circumference, and cannon circumference index) in SBWC goats. The
height at hip cross of individuals with insertion/insertion (II) genotype
was higher than those with insertion/deletion (ID) genotype (P=0.02); on
the contrary, the cannon circumference and cannon circumference index of
individuals with ID genotype were superior when compared with those with II
genotype (P=0.017 and P=0.009). These findings suggest that the 20-bp
indel in the CDC25A gene significantly affects growth-related traits, and could be
utilized as a candidate marker for marker-assisted selection (MAS) in
the cashmere goat industry.
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Affiliation(s)
- Wenbo Cui
- College of Animal Science and Technology, Northwest A&F University, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, Shaanxi, China
| | - Nuan Liu
- College of Animal Science and Technology, Northwest A&F University, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, Shaanxi, China
| | - Xuelian Zhang
- College of Animal Science and Technology, Northwest A&F University, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, Shaanxi, China
| | - Yanghai Zhang
- College of Animal Science and Technology, Northwest A&F University, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, Shaanxi, China
| | - Lei Qu
- Shaanxi Provincial Engineering and Technology Research Center of Cashmere Goats, Yulin University, Yulin, China.,Life Science Research Center, Yulin University, Yulin, China
| | - Hailong Yan
- Shaanxi Provincial Engineering and Technology Research Center of Cashmere Goats, Yulin University, Yulin, China.,Life Science Research Center, Yulin University, Yulin, China
| | - Xianyong Lan
- College of Animal Science and Technology, Northwest A&F University, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, Shaanxi, China
| | - Wuzi Dong
- College of Animal Science and Technology, Northwest A&F University, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, Shaanxi, China
| | - Chuanying Pan
- College of Animal Science and Technology, Northwest A&F University, Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, Yangling, Shaanxi, China.,College of Animals Science and Technology, Northwest A&F University, No. 22 Xinong Road, Yangling, Shaanxi 712100, China
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