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Bai Y, Bo D, Bi Y, Areb E, Zhu H, Pan C, Lan X. Analysis of goat PPP6C mRNA profile, detection of genetic variations, and their associations with litter size. Anim Reprod Sci 2024; 268:107544. [PMID: 38981196 DOI: 10.1016/j.anireprosci.2024.107544] [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: 03/11/2024] [Revised: 06/24/2024] [Accepted: 06/27/2024] [Indexed: 07/11/2024]
Abstract
The Protein Phosphatase 6 Catalytic Subunit (PPP6C) is evolutionarily a conserved gene in eukaryotes known to play a significant role in mammalian reproduction. This study aimed to investigate expression patterns of PPP6C and explore its association with litter size in Shaanbei white cashmere (SBWC) goats. Initially, we determined the mRNA expression levels of PPP6C in both male and female goats across multiple tissues. The results showed that PPP6C mRNA was expressed in multiple tissues, with higher levels in the testis and fallopian tubes, suggesting its involvement in goat reproduction. Additionally, we identified a novel 19 bp InDel within the PPP6C gene in a population of 1030 SBWC goats, which exhibited polymorphism. Statistical analysis revealed a significant association between the19 bp InDel mutation and litter size (P < 0.05). Subsequent, bioinformatics analysis, including linkage disequilibrium (LD) block and selective scanning, highlighted the linkage tendency among most InDel loci did not stand out within B-8 block, there were still some InDel loci linked to the 19 bp within a relatively narrow region. Furthermore, comparative analysis with Bezoars, these selective signals all indicated that this gene was under higher selection pressure, implying that the 19 bp InDel locus within the PPP6C is potentially associated with domesticated traits, particularly in relation to litter size. The results of the present study suggest that the PPP6C is a vital candidate gene affecting prolificacy in goats, with implications for selective breeding programs for goat breeds.
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Affiliation(s)
- Yangyang Bai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Didi Bo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yutian Bi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ebadu Areb
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China; Central Ethiopia Agricultural Research Institute at Worabe Agricultural Research Center, Worabe, Ethiopia
| | - Haijing Zhu
- Shaanxi Provincial Engineering and Technology Research Center of Cashmere Goats, Yulin University, Yulin, Shaanxi 719000, China
| | - Chuanying Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xianyong Lan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Deng K, Li X, Liu Z, Su Y, Sun X, Wei W, Fan Y, Zhang Y, Wang F. IGF2BP2 regulates the proliferation and migration of endometrial stromal cells through the PI3K/AKT/mTOR signaling pathway in Hu sheep. J Anim Sci 2024; 102:skae129. [PMID: 38727196 PMCID: PMC11151927 DOI: 10.1093/jas/skae129] [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: 03/11/2024] [Accepted: 05/09/2024] [Indexed: 06/06/2024] Open
Abstract
Insulin-like growth factor 2 mRNA binding protein 2 (IGF2BP2), a significant member of the conserved RNA-binding protein family, plays various roles in numerous physiological and pathological processes. However, the specific function of IGF2BP2 in regulating endometrial function in sheep remains largely unknown. In this study, we observed a significant upregulation in IGF2BP2 mRNA abundance in the endometrium during the luteal phase compared to the follicular phase in Hu sheep. The knockdown of IGF2BP2 resulted in accelerated cell proliferation and migration of Hu sheep endometrial stromal cells (ESCs). Moreover, RNA sequencing analysis revealed that genes with significantly altered expression in IGF2BP2 knockdown cells were predominantly enriched in endometrial receptivity-related signaling pathways, such as cytokine-cytokine receptor interaction, NOD-like receptor, PI3K-AKT, and JAK-STAT signaling pathway. Additionally, the knockdown of IGF2BP2 significantly increased the expression of matrix metalloprotein 9 (MMP9), vascular endothelial growth factor, and prolactin (PRL) in ESCs. The knockdown of IGF2BP2 was also observed to stimulate the PI3K/AKT/mTOR pathway by upregulating integrin β4 (ITGB4) expression. Notably, the downregulation of ITGB4 attenuates IGF2BP2 knockdown-induced facilitation of proliferation and migration of Hu sheep ESCs by inhibiting the PI3K/AKT/mTOR pathway. Collectively, these findings highlight the important role of IGF2BP2 in regulating endometrial function, particularly through the modulation of ESC proliferation and migration via the PI3K/AKT/mTOR pathway.
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Affiliation(s)
- Kaiping Deng
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xiaodan Li
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhipeng Liu
- Sanya Institute of Nanjing Agricultural University, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yalong Su
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Xuan Sun
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Wurilege Wei
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Inner Mongolia Academy of Agricultural & Animal Husbandry Sciences, Hohhot, 010000, China
| | - Yixuan Fan
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanli Zhang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Wang
- Hu Sheep Academy, Nanjing Agricultural University, Nanjing, 210095, China
- Jiangsu Livestock Embryo Engineering Laboratory, Nanjing Agricultural University, Nanjing, 210095, China
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Zhou Q, Hu H, Yang Y, Kang Y, Lan X, Wu X, Guo Z, Pan C. Insertion/deletion (Indel) variant of the goat RORA gene is associated with growth traits. Anim Biotechnol 2023; 34:2175-2182. [PMID: 35622416 DOI: 10.1080/10495398.2022.2078980] [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: 11/01/2022]
Abstract
RAR related orphan receptor A (RORA), which encodes the retinoid-acid-related orphan receptor alpha (RORα), is a clock gene found in skeletal muscle. Several studies have shown that RORα plays an important role in bone formation, suggesting that RORA gene may take part in the regulation of growth and development. The purpose of this research is to study the insertion/deletion (indel) variations of the RORA gene and investigate the relationship with the growth traits of Shaanbei white cashmere (SBWC) goats. Herein, the current study identified that the P4-11-bp and P11-28-bp deletion sites are polymorphic among 12 pairs of primers within the RORA gene in the SBWC goats (n = 641). Moreover, the P11-28-bp deletion locus was significantly related to the body height (p = 0.046), height at hip cross (p = 0.012), and body length (p = 0.003). Both of P4-11-bp and P11-28-bp indels showed the moderate genetic diversity (0.25
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Affiliation(s)
- Qian Zhou
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Huina Hu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuta Yang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yuxin Kang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xianyong Lan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xianfeng Wu
- Institute of Animal Husbandry and Veterinary, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian, China
| | - Zhengang Guo
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
- Animal Husbandry and Veterinary Science Institute of Bijie city, Bijie, Guizhou, China
| | - Chuanying Pan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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Wijayanti D, Zhang S, Bai Y, Pan C, Chen H, Qu L, Guo Z, Lan X. Investigation on mRNA expression and genetic variation within goat SMAD2 gene and its association with litter size. Anim Biotechnol 2023; 34:2111-2119. [PMID: 35584800 DOI: 10.1080/10495398.2022.2077214] [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: 11/01/2022]
Abstract
The SMAD family member 2 (SMAD2), a member of the TGF-beta superfamily, executes a significant part in the oogenesis and ovulation process. A genome-wide selective sweep analysis also found SMAD2 was different in the fertility groups of Laoshan dairy goats; whether this gene was linked to litter size was unknown. Therefore, SMAD2 was chosen to study its effects on Shaanbei white cashmere goat reproduction and mRNA expression profile. Herein, the mRNA expression level of SMAD2 was firstly determined in female goat tissues, revealing significant differences in mRNA levels of different tissues (p < 0.05), including ovary tissue, indicating a potential role for SMAD2 in goat prolificacy. Then, using six pairs of primers, only one indel locus (P3-Del-12-bp) was found to be polymorphic in goat SMAD2 (n = 501). ANOVA also revealed that a P3-Del-12-bp deletion was significantly related to first-born litter size (p = 0.037). The Chi-square (χ2) test revealed that the ID genotype was significantly more prevalent in mothers with multiple lambs (p = 0.01), indicating that heterozygous individuals (ID) are more likely to produce multiple lambs. Our findings suggest that the SMAD2 gene's P3-Del-12-bp deletion could be used to improve goat breeds by assisting with litter size selection.
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Affiliation(s)
- Dwi Wijayanti
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
- Department of Animal Science, Perjuangan University of Tasikmalaya, Tasikmalaya, West Java, Indonesia
| | - Sihuan Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yangyang Bai
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Chuanying Pan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Hong Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Lei Qu
- Shaanxi Provincial Engineering and Technology Research Center of Cashmere Goats, Yulin University, Yulin, Shaanxi, PR China; Life Science Research Center, Yulin University, Yulin, Shaanxi, PR China
| | - Zhengang Guo
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
- Institute of Animal Husbandry and Veterinary Science of Bijie City, Guizhou, China
| | - Xianyong Lan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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Wang Z, Wang X, Lan X, Zhu H, Qu L, Pan C. Polymorphism within the GATA binding protein 4 gene is significantly associated with goat litter size. Anim Biotechnol 2023; 34:4291-4300. [PMID: 36421983 DOI: 10.1080/10495398.2022.2147533] [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: 11/27/2022]
Abstract
GATA binding protein 4 (GATA4) is a typical transcription binding factor, and its main functions include regulating the proliferation, differentiation and apoptosis of ovarian granulosa cells, promoting spermatogenesis and sex differentiation, implying that this gene have possibly roles in animal reproduction. This study aims to detect five potential insertion/deletions (indels) of the GATA4 gene in 606 healthy unrelated Shaanbei white cashmere (SBWC) goats and analyze its association with the litter size. The electrophoresis and DNA sequencing identified two polymorphic indels (e.g., P4-Del-8bp and P5-Ins-9bp indel). Then T-test analysis showed that P4-Del-8bp was significantly correlated with litter size (p = 0.022) because of two different genotypes detected, e.g., insertion-deletion (ID) and deletion-deletion (DD), and the average litter size of individuals with DD genotype goats was higher than that of others. However, there was no correlation between P5-Ins-9bp and lambing of goats. Chi-square (X2) test found that the distribution of and P4-Del-8bp genotypes (X2 = 6.475, p = 0.011) was significantly different between single and multiple-lamb groups, while P5-Ins-9bp (X2 = 0.030, p = 0.862) was not. Therefore, these findings revealed that P4-Del-8bp polymorphism of goat GATA4 gene was a potential molecular marker significantly associated with litter size, which can be used for the marker-assisted selection (MAS) breeding to improve goat industry.
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Affiliation(s)
- Zhiying Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xinyu Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Xianyong Lan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
| | - Haijing Zhu
- Life Science Research Center, Shaanxi Provincial Engineering and Technology Research Center of Cashmere Goats, Yulin University, Yulin, China
| | - Lei Qu
- Life Science Research Center, Shaanxi Provincial Engineering and Technology Research Center of Cashmere Goats, Yulin University, Yulin, China
| | - Chuanying Pan
- College of Animal Science and Technology, Northwest A&F University, Yangling, China
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Sun X, Jiang J, Wang G, Zhou P, Li J, Chen C, Liu L, Li N, Xia Y, Ren H. Genome-wide association analysis of nine reproduction and morphological traits in three goat breeds from Southern China. Anim Biosci 2023; 36:191-199. [PMID: 35760404 PMCID: PMC9834730 DOI: 10.5713/ab.21.0577] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 05/18/2022] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE This study aimed to investigate the significant single nucleotide polymorphisms (SNPs) and genes associated with nine reproduction and morphological traits in three breed populations of Chinese goats. METHODS The genome-wide association of nine reproduction and morphological traits (litter size, nipple number, wattle, skin color, coat color, black dorsal line, beard, beard length, and hind leg hair) were analyzed in three Chinese native goat breeds (n = 336) using an Illumina Goat SNP50 Beadchip. RESULTS A total of 17 genome-wide or chromosome-wide significant SNPs associated with one reproduction trait (litter size) and six morphological traits (wattle, coat color, black dorsal line, beard, beard length, and hind leg hair) were identified in three Chinese native goat breeds, and the candidate genes were annotated. The significant SNPs and corresponding putative candidate genes for each trait are as follows: two SNPs located on chromosomes 6 (CSN3) and 24 (TCF4) for litter size trait; two SNPs located on chromosome 9 (KATNA1) and 1 (UBASH3A) for wattle trait; three SNPs located on chromosome 26 (SORCS3), 24 (DYM), and 20 (PDE4D) for coat color trait; two SNPs located on chromosome 18 (TCF25) and 15 (CLMP) for black dorsal line trait; four SNPs located on chromosome 8, 2 (PAX3), 5 (PIK3C2G), and 28 (PLA2G12B and OIT3) for beard trait; one SNP located on chromosome 18 (KCNG4) for beard length trait; three SNPs located on chromosome 17 (GLRB and GRIA2), 28 (PGBD5), and 4 for hind leg hair trait. In contrast, there were no SNPs identified for nipple number and skin color. CONCLUSION The significant SNPs or genes identified in this study provided novel insights into the genetic mechanism underlying important reproduction and morphological traits of three local goat breeds in Southern China as well as further potential applications for breeding goats.
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Affiliation(s)
- Xiaoyan Sun
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China
| | - Jing Jiang
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China
| | - Gaofu Wang
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China,Chongqing Engineering Research Center for Goats, Chongqing, 402460,
China
| | - Peng Zhou
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China,Chongqing Engineering Research Center for Goats, Chongqing, 402460,
China
| | - Jie Li
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China,Chongqing Engineering Research Center for Goats, Chongqing, 402460,
China
| | - Cancan Chen
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China,Chongqing Engineering Research Center for Goats, Chongqing, 402460,
China
| | - Liangjia Liu
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China,Chongqing Engineering Research Center for Goats, Chongqing, 402460,
China
| | - Nianfu Li
- Youyang County Livestock Industry Development Center, Chongqing, 409800,
China
| | - Yuanyou Xia
- Youyang County Livestock Industry Development Center, Chongqing, 409800,
China
| | - Hangxing Ren
- Chongqing Academy of Animal Sciences, Chongqing, 402460,
China,Chongqing Engineering Research Center for Goats, Chongqing, 402460,
China,Corresponding Author: Hangxing Ren, Tel: +86-023-46777341, E-mail:
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Mi F, Wu X, Wang Z, Wang R, Lan X. Relationships between the Mini-InDel Variants within the Goat CFAP43 Gene and Body Traits. Animals (Basel) 2022; 12:ani12243447. [PMID: 36552367 PMCID: PMC9774114 DOI: 10.3390/ani12243447] [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: 10/11/2022] [Revised: 11/26/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022] Open
Abstract
The cilia- and flagella-associated protein 43 (CFAP43) gene encodes a member of the cilia- and flagellum-associated protein family. Cilia on the cell surface influence intercellular signaling and are involved in biological processes such as osteogenesis and energy metabolism in animals. Previous studies have shown that insertion/deletion (InDel) variants in the CFAP43 gene affect litter size in Shaanbei white cashmere (SBWC) goats, and that litter size and body traits are correlated in this breed. Therefore, we hypothesized that there is a significant relationship between InDel variants within the CFAP43 gene and body traits in SBWC goats. Herein, we first investigated the association between three InDel variant loci (L-13, L-16, and L-19 loci) within CFAP43 and body traits in SBWC goats (n = 1827). Analyses revealed that the L-13, L-16, and L-19 loci were significantly associated with chest depth, four body traits, and three body traits, respectively. The results of this study are in good agreement with those previously reported and could provide useful molecular markers for the selection and breeding of goats for body traits.
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Affiliation(s)
- Fang Mi
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350000, China
- College of Animal Science and Technology, Northwest Agriculture and Forestry University, No. 22, Xinong Road, Xianyang 712100, China
| | - Xianfeng Wu
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou 350000, China
- Correspondence: (X.W.); (X.L.)
| | - Zhen Wang
- College of Animal Science and Technology, Northwest Agriculture and Forestry University, No. 22, Xinong Road, Xianyang 712100, China
| | - Ruolan Wang
- College of Animal Science and Technology, Northwest Agriculture and Forestry University, No. 22, Xinong Road, Xianyang 712100, China
| | - Xianyong Lan
- College of Animal Science and Technology, Northwest Agriculture and Forestry University, No. 22, Xinong Road, Xianyang 712100, China
- Correspondence: (X.W.); (X.L.)
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Zhang Z, Sui Z, Zhang J, Li Q, Zhang Y, Wang C, Li X, Xing F. Identification of Signatures of Selection for Litter Size and Pubertal Initiation in Two Sheep Populations. Animals (Basel) 2022; 12:ani12192520. [PMID: 36230262 PMCID: PMC9559472 DOI: 10.3390/ani12192520] [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: 08/09/2022] [Revised: 09/13/2022] [Accepted: 09/19/2022] [Indexed: 11/23/2022] Open
Abstract
Fecundity is an important economic trait in sheep that directly affects their economic and productive efficiency. Our study aimed to identify SNP loci associated with sheep puberty or litter size which could be used in future breeding programs to improve fertility. Genomic DNA was obtained from Hetian and Cele Black sheep breeds and used for reduced-representation genome sequencing to identify SNP loci associated with pubertal initiation and litter size. Selective signatures analysis was performed based on the fixation index and nucleotide diversity, followed by pathway analysis of the genes contained in the selected regions. The selected SNP loci in the genes associated with pubertal initiation and litter size were validated using both sheep breeds. In total, 384,718 high quality SNPs were obtained and 376 genes were selected. Functional annotation of genes and enrichment analysis identified 12 genes associated with pubertal initiation and 11 genes associated with litter size. SNP locus validation showed that two SNP on PAK1 and four on ADCY1 may be associated with pubertal initiation, and one SNP on GNAQ gene (NC_040253.1: g.62677376G > A) was associated with litter size in Cele Black sheep. Our results provide new theoretical support for sheep breeding.
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Genetic Variations within the Bovine CRY2 Gene Are Significantly Associated with Carcass Traits. Animals (Basel) 2022; 12:ani12131616. [PMID: 35804515 PMCID: PMC9264869 DOI: 10.3390/ani12131616] [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: 05/19/2022] [Revised: 06/16/2022] [Accepted: 06/21/2022] [Indexed: 12/02/2022] Open
Abstract
As an important part of the circadian rhythm, the circadian regulation factor 2 of cryptochrome (CRY2), regulates many physiological functions. Previous studies have reported that CRY2 is involved in growth and development. However, the relationship between CRY2 gene polymorphism and cattle carcass traits remains unclear. The aim of this study was to detect the possible variations of the CRY2 gene and elucidate the association between the CRY2 gene and carcass traits in the Shandong Black Cattle Genetic Resource (SDBCGR) population (n = 705). We identified a 24-bp deletion variation (CRY2-P6) and a 6-bp insertion variation (CRY2-P7) in the bovine CRY2 gene. The frequency of the homozygous II genotype is higher than the heterozygous ID genotype in both two loci. In addition, CRY2-P6 was consistent with HWE (p > 0.05). Importantly, the CRY2-P6 variant was significantly associated with 12 carcass traits, including gross weight, ribeye, high rib, thick flank, etc. and the II was the dominant genotype. The CRY2-P7 site was also significantly correlated with five traits (gross weight, beef-tongue, etc.). Collectively, these outcomes indicated that the two Indel loci in the CRY2 gene could be used for marker-assisted selection of cattle carcass traits.
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