1
|
Yang H, Chen Y, Rahman SU, Wang Y, Ni S, Jiang Y, Zhu F, Li D, Cao Q, Chang J, Wen Y, Chen D, Wentao M. Characterization and epidemiologic analysis of mycoplasmal pneumonia of sheep in Qinghai Province. PLoS One 2024; 19:e0299928. [PMID: 38771810 PMCID: PMC11108190 DOI: 10.1371/journal.pone.0299928] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 02/16/2024] [Indexed: 05/23/2024] Open
Abstract
Mycoplasmal pneumonia in sheep and goats usually result covert but huge economic losses in the sheep and goat industry. The disease is prevalent in various countries in Africa and Asia. Clinical manifestations in affected animals include anorexia, fever, and respiratory symptoms such as dyspnea, polypnea, cough, and nasal discharge. Due to similarities with other respiratory infections, accurate diagnosis can be challenging, and isolating the causative organism is often problematic. However, the utilization of molecular techniques, such as PCR, allows for rapid and specific identification of pathogens. Thus, a goat infection model with Mycoplasma was established and the pathogen was tested using PCR. The results indicated that this approach could be effectively utilized for the rapid detection of mycoplasma in clinical settings. Additionally, the prevalence of contagious pleuropneumonia of sheep in Qinghai Province was further investigated through PCR analysis. A total of 340 nasal swabs were collected from 17 sheep farms in Qinghai province. Among these samples, 84 tested positive for Mycoplasma mycoides subsp. capri (Mmc) and 148 tested positive for Mycoplasma ovipneumoniae (Movi), resulting in positive rates of 24.71% and 43.53% respectively. Furthermore, our investigation revealed positive PCR results for nasal swabs, trachea, and lung samples obtained from sheep exhibiting symptoms suggestive of mycoplasma infection. Moreover, three distinct strains were isolated from these positive samples. Additionally, the inflammatory cytokines of peripheral blood mononuclear cells (PBMCs) were assessed using RT-PCR. The findings demonstrated a high susceptibility of sheep to Movi in Qinghai province, with infected sheep displaying an inflammatory response. Consequently, the outcomes of this study will furnish valuable epidemiological insights for the effective prevention and control of this disease within Qinghai Province.
Collapse
Affiliation(s)
- Haoyue Yang
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Yiming Chen
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Siddiq Ur Rahman
- Department of Computer Science and Bioinformatics, Khushal Khan Khattak University, Karak, Khyber Pakhtunkhwa, Pakistan
| | - Yunpeng Wang
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Silu Ni
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Yuecai Jiang
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Fang Zhu
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Dengliang Li
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Qihang Cao
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Jianjun Chang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province, China
| | - Ying Wen
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, Qinghai Province, China
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, Qinghai Province, China
| | - Dekun Chen
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| | - Ma Wentao
- Veterinary Immunology Laboratory, College of Veterinary Medicine, Northwest Agriculture and Forestry University, Yangling, Shaanxi Province, China
| |
Collapse
|
2
|
Alkhammas AH, Al-Thuwaini TM, Al-Shuhaib MBS, Khazaal NM. Association of Novel C319T Variant of PITX2 Gene 3'UTR Region With Reproductive Performance in Awassi Sheep. Bioinform Biol Insights 2023; 17:11779322231179018. [PMID: 37313032 PMCID: PMC10259137 DOI: 10.1177/11779322231179018] [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: 11/13/2022] [Accepted: 05/13/2023] [Indexed: 06/15/2023] Open
Abstract
Several genes influence sheep's reproductive performance, among them the paired-like homeodomain transcription factor 2 (PITX2) gene. Thus, this study aimed to examine whether the variability within the PITX2 gene is associated with the reproductive performance of Awassi ewes. A total of 123 single-progeny ewes and 109 twin ewes were used to extract genomic DNA. An amplicon of 4 sequence fragments from exons 2, 4, 5 (upstream portion), and 5 (downstream portion) of the PITX2 gene was generated by polymerase chain reaction (PCR), 228, 304, 381, and 382 bp, respectively. Three genotypes of 382 bp amplicons were identified: CC, CT, and TT. Sequence analysis revealed a novel mutation in the CT genotype 319C > T. Statistical analysis revealed that single-nucleotide polymorphism (SNP) 319C > T was associated with reproductive performance. Single-nucleotide polymorphism 319C > T-carrying ewes had significantly (P ⩽ .01) lower litter sizes, twinning rates, lambing rates, and more days to lambing than those carrying CT and CC genotypes. Based on a logistic regression analysis, it was confirmed that the 319C > T SNP decreased litter size. Ewes with TT genotype produced fewer lambs than ewes with CT and CC genotypes. According to these results, the variant 319C> T SNP negatively affects the reproductive performance of Awassi sheep. Ewes carrying the 319C > T SNP have a lower litter size and are less prolific than those without the SNP.
Collapse
Affiliation(s)
- Ahmed H Alkhammas
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Iraq
| | - Tahreer M Al-Thuwaini
- Department of Animal Production, College of Agriculture, Al-Qasim Green University, Al-Qasim, Iraq
| | | | - Neam M Khazaal
- Department of Physiology, Biochemistry and Pharmacology, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq
| |
Collapse
|
3
|
Ji X, Cao Z, Hao Q, He M, Cang M, Yu H, Ma Q, Li X, Bao S, Wang J, Tong B. Effects of New Mutations in BMPRIB, GDF9, BMP15, LEPR, and B4GALNT2 Genes on Litter Size in Sheep. Vet Sci 2023; 10:vetsci10040258. [PMID: 37104413 PMCID: PMC10141719 DOI: 10.3390/vetsci10040258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/14/2023] [Accepted: 03/28/2023] [Indexed: 03/31/2023] Open
Abstract
Prolificacy is a crucial characteristic of livestock, particularly for species such as sheep that have many births. The objectives of this study were as follows: (1) to investigate the genetic diversity of the 13 new and 7 known variants in the BMPRIB, GDF9, BMP15, LEPR, and B4GALNT2 genes in Ujimqin (UM), the F1 population of Dorper × Ujimqin crossbred (DPU), the F1 population of Suffolk × Ujimqin crossbred (SFKU), Sonid sheep (SN), Tan sheep (Tan), Hu sheep (Hu), and Small-tailed Han sheep (STH) sheep breeds/populations; (2) to perform an association analysis of the above 20 variants with litter size in 325 UM, 304 DPU, and 66 SFKU sheep populations; (3) to compare the frequencies of the litter-size-related alleles of these 20 variants among 8 sheep breeds/populations (the above seven sheep breeds + Mongolia sheep breed). With the use of the Sequenom MassARRAY®SNP assay technology, these 20 mutations were genotyped. The association analysis results showed that the c.746A>G (FecB) mutation in BMPR1B was significantly associated with the litter size of UM and DPU, the c.994A>G (FecGA) in GDF9 was significantly associated with the litter size of SFKU, and the c.31_33CTTinsdel (B1) in BMP15 was significantly associated with the litter size of UM. Our findings might provide valuable genetic markers for expanding sheep litter sizes.
Collapse
Affiliation(s)
- Xuewen Ji
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Ziwei Cao
- Xilingol Mengzhiyuan Animal Husbandry Company, Xilingol 026000, China
| | - Qi Hao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Mei He
- Xilingol Mengzhiyuan Animal Husbandry Company, Xilingol 026000, China
| | - Ming Cang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Haiquan Yu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Qing Ma
- Institute of Animal Sciences, Ningxia Academy of Agricultural and Forestry Sciences, Yinchuan 750001, China
| | - Xihe Li
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Siqin Bao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
| | - Jianguo Wang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
- Correspondence: (J.W.); (B.T.)
| | - Bin Tong
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot 010070, China
- Correspondence: (J.W.); (B.T.)
| |
Collapse
|
4
|
Zhang Y, Wang Y, Chen Q, Song Y, Zhang H, Jia J. Evaluation of the BMPR-1B gene functional polymorphisms and their association with litter size in Qinghai Tibetan sheep. Small Rumin Res 2022. [DOI: 10.1016/j.smallrumres.2022.106816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
5
|
Chi C, He J, Du Z, Zheng Y, D’Alessandro E, Chen C, Moawad AS, Asare E, Song C, Wang X. Two Retrotransposon Elements in Intron of Porcine BMPR1B Is Associated with Phenotypic Variation. Life (Basel) 2022; 12:life12101650. [PMID: 36295085 PMCID: PMC9604734 DOI: 10.3390/life12101650] [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: 08/31/2022] [Revised: 09/28/2022] [Accepted: 10/16/2022] [Indexed: 11/16/2022] Open
Abstract
It has been established that through binding to bone morphogenetic proteins (BMPs), bone morphogenetic protein receptor I B (BMPR1B) can mediate transforming growth factor β (TGF-β) signal transduction, and is involved in the regulation of several biological processes, such as bone and muscle formation and homeostasis, as well as folliculogenesis. Also known as FecB, BMPR1B has been reported as the major gene for sheep prolificacy. A number of previous studies have analyzed the relationship between single nucleotide polymorphisms (SNPs) in this gene and its related performance. In recent years, with the illustration of the effect of retrotransposon insertion on the expression of the proximal genes or phenotypic variation, retrotransposon insertion polymorphisms (RIPs) have been used as a novel type of molecular marker in the evaluation of evolution, population structure and breeding of plant and domestic animals. In this study, the RIPs in porcine BMPR1B gene were excavated, and thereafter verified using a comparative genome and polymerase chain reaction (PCR). The potential effects of phenotype, gene expression and functions related to RIPs were also explored. The results showed that 13 distinct RIPs were identified in introns of porcine BMPR1B. Among these, only BMPR1B-SINE-RIP9 and BMPR1B-LINE-RIP13 displayed a close relationship with the growth traits of Large White pigs. Moreover, the total number of BMPR1B-SINE+/+-RIP9 individuals born was found to be significantly higher than that of SINE−/− (p < 0.05). These two RIPs showed an obvious distribution pattern among Chinese indigenous breeds and Western commercial breeds. The expression of BMPR1B in ovaries of adult BMPR1B-SINE+/+-RIP9 Sushan pigs was found to be significantly higher in comparison to those of BMPR1B-SINE−/−-RIP9 (p < 0.05). SINE insertion of BMPR1B-SINE-RIP9 and LINE insertion of BMPR1B-LINE-RIP13 were observed to significantly increase the activity of Octamer binding transcription factor 4 (OCT4) minipromoter in CHO and C2C12 cells (p < 0.01). Therefore, these two RIPs could serve as useful molecular markers for modulating the growth or reproductive traits in assisted selection of pig breeding, while the mechanisms of the insertion function should be studied further.
Collapse
Affiliation(s)
- Chenglin Chi
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Jia He
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Zhanyu Du
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Yao Zheng
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Enrico D’Alessandro
- Department of Veterinary Science, Division of Animal Production, University of Messina, 98168 Messina, Italy
| | - Cai Chen
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Ali Shoaib Moawad
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
- Department of Animal Production, Faculty of Agriculture, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Emmanuel Asare
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Chengyi Song
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
| | - Xiaoyan Wang
- College of Animal Science & Technology, Yangzhou University, Yangzhou 225009, China
- Correspondence: ; Tel./Fax: +86-013511768881
| |
Collapse
|
6
|
Shen W, Wang L, Ma Y, Cao Y, Zhang X, Han Q, Wu S, Wu G. Association between BMP15 Gene Polymorphisms of Growth Traits and Litter Size in Qinghai Bamei Pigs. RUSS J GENET+ 2022. [DOI: 10.1134/s1022795422080075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
7
|
Akhatayeva Z, Bi Y, He Y, Khan R, Li J, Li H, Pan C, Lan X. Survey of the relationship between polymorphisms within the BMPR1B gene and sheep reproductive traits. Anim Biotechnol 2021:1-10. [PMID: 34586970 DOI: 10.1080/10495398.2021.1979023] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The BMPRIB gene is one of the main genes that can be used as a molecular genetic marker for the early selection of highly productive ewes. It is well-documented that the p.Q249R (g.746A > G) is the first mutation in the kinase domain of the BMPR1B gene that is highly related to increased ovulation rate and litter size. It is likely that the presence of the p.Q249R mutation in the sheep population is one of the factors contributing to the outstanding productivity of the sheep. Moreover, in recent years, researchers have been explored other polymorphisms in the BMPR1B gene with respect to reproductive traits in sheep. Therefore, we carried out the current study to evaluate the association between polymorphisms in this gene and sheep litter size from all appropriate studies. As a result, among 41 polymorphisms in the ovine BMPRIB gene, eight variants, including p.Q249R (g.746A > G), g.29362047T > C, g.29427689G > A, BMPR1B-2 (ss:1960972599), g.29382337G > A, g.29382340G > A, rs1092293287 (10 bp insertion/deletion) and g.29380965A > G were found to be associated with litter size in sheep. This systematic analysis presents the most current data evidence for BMPRIB polymorphisms, highlighting the need for further large-scale studies to determine more important variants.
Collapse
Affiliation(s)
- Zhanerke Akhatayeva
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yi Bi
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Yiwen He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China.,Library of Northwest A&F University, Northwest A&F University, Yangling, Shaanxi, China
| | - Rajwali Khan
- Department of Livestock Management, Breeding and Genetics, The University of Agriculture, Peshawar, Pakistan
| | - Jie Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Haixia Li
- 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
| | - 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
| |
Collapse
|
8
|
Gao Y, Hao Q, Cang M, Wang J, Yu H, Liu Y, Zhang W, Tong B. Association between novel variants in BMPR1B gene and litter size in Mongolia and Ujimqin sheep breeds. Reprod Domest Anim 2021; 56:1562-1571. [PMID: 34543455 DOI: 10.1111/rda.14020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 09/17/2021] [Indexed: 11/27/2022]
Abstract
Prolificacy is an important trait of animals, specifically for sheep. The Bone morphogenetic protein receptor 1B (BMPR1B) is a major gene affecting the litter size of many sheep breeds. The well-known FecB mutation (Q249R) was associated fully with the hyper prolific phenotype of Booroola Merino. However, the identification of variation in all exonic regions of BMPR1B was rare. In this study, we sequenced all exonic regions of BMPR1B gene of Mongolia sheep breed, and ten novel variants were detected by direct sequencing. Among them, the litter size of the Mongolia ewes with the CC genotype was significantly higher (0.34 additional lambs, p < .05) than those with the TT genotype of the g.29346567C>T single nucleotide polymorphism (SNP). The litter size of the Mongolia ewes with the TT genotype was significantly higher (0.19 additional lambs, p < .05 and .31 additional lambs, p < .01, respectively) than those with the GT and GG genotypes of the c.1470G>T SNP. The silent c.1470G>T mutation is predicted to increase the stability of the mRNA secondary structure through reducing minimum free energy and is predicted to change the mRNA secondary structure of BMPR1B. Our findings may give potentially useful genetic markers for increasing litter size in sheep.
Collapse
Affiliation(s)
- Yuanyuan Gao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Qi Hao
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Ming Cang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Jianguo Wang
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Haiquan Yu
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| | - Yongbin Liu
- Institute of Animal Science, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences, Hohhot, China
| | - Wenguang Zhang
- College of Animal Sciences, Inner Mongolia Agricultural University, Hohhot, China
| | - Bin Tong
- The State Key Laboratory of Reproductive Regulation and Breeding of Grassland Livestock, School of Life Sciences, Inner Mongolia University, Hohhot, China
| |
Collapse
|
9
|
Medina-Montes A, Carrillo-Gonzalez DF, Hernández-Herrea DY. Association of a genetic polymorphism in the BMPR-1B gene, and non-genetic factors with the natural prolificacy of the Colombian-haired sheep. Trop Anim Health Prod 2021; 53:206. [PMID: 33712982 DOI: 10.1007/s11250-021-02651-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 03/09/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Colombian-haired sheep (OPC) is a creole breed with very good adaptation to the tropical conditions of our country. In sheep, it has been shown that the litter size (LS) is associated with ovulation rate, the number of fertilized eggs, and embryo survival. Also, LS is determined by genetic and environmental effects. In this sense, the receptor 1B of bone morphogenetic protein (BMPR-1B) has been described as a genetic factor. Therefore, the aim of the present work was to characterize and associate the SNP C864T in the BMPR-1B gene with LS in the specific OPC biotypes Ethiopian and Sudan. MATERIALS AND METHODS Reproductive history (LS, number of calving in the mother, identification of the father, conception year, and conception period) of 200 OPC sheep was assessed. Additionally, sheep were genotyped by sequencing for the SNP C864T. An association between LS, reproductive history, and C864T variation was performed using a GLM fixed-effect model. RESULTS The frequency of the T allele (0.75 ± 0.03) was higher than that of the C allele (P<0.05). The genotypic frequencies were 0.55 ± 0.06, 0.38 ± 0.04, and 0.07 ± 0.01, for TT, TC, and CC, respectively. An average value of He (0.37 ± 0.03) and HWE (P=0.97) was found. The LS found was 1.45 ± 0.15. This varied, between biotypes, with number of calving in the mother, with the father, and at the time of conception (P <0.05). CONCLUSION The LS varied between genotypes (P<0.05). The CC genotype was the most prolific (1.81 ± 0.4), followed by the heterozygous (1.45 ± 0.04) and the TT homozygous (1.09 ± 0.04). However, we did not find a variation between biotypes within the genotypes (P>0.05). In conclusion, the polymorphism target in the exon 9 of the BMPR-1B gene and non-genetic factors affected significantly the litter size in the OPC.
Collapse
Affiliation(s)
- Adrian Medina-Montes
- Faculty of Agricultural Sciences, Research group in Animal Reproduction and Genetic Improvement, University of Sucre, Sucre, Colombia
| | - Diego F Carrillo-Gonzalez
- Faculty of Agricultural Sciences, Research group in Animal Reproduction and Genetic Improvement, University of Sucre, Sucre, Colombia.
| | - Darwin Y Hernández-Herrea
- Faculty of Agricultural Sciences, Research group in Animal Reproduction and Genetic Improvement, University of Sucre, Sucre, Colombia
| |
Collapse
|
10
|
Li H, Xu H, Akhatayeva Z, Liu H, Lin C, Han X, Lu X, Lan X, Zhang Q, Pan C. Novel indel variations of the sheep FecB gene and their effects on litter size. Gene 2020; 767:145176. [PMID: 33002573 DOI: 10.1016/j.gene.2020.145176] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/02/2020] [Accepted: 09/23/2020] [Indexed: 12/14/2022]
Abstract
Various studies had shown that the FecB gene (also known as BMPRIB, BMPR1B or ALK-6) was the major gene influencing sheep litter size, for which its SNPs' variations were reportedly linked. Yet, surprisingly, there was no published information on the insertion/deletion (indel) variation of this gene. Herein, using a population of Chinese Australian White sheep (n = 932), we identified five novel indels in the different introns of the FecB gene. Among them, the 12-bp indel was distinguished as a splicing region variation that was completely linked to the 17-bp indel. Analysis of variance revealed that only the 10-bp indel was significantly associated with sheep litter size (P = 0.010), for which the deletion/deletion (DD) genotype was the harmful one for fecundity. Nevertheless, the combined genotypes of these five indels were significantly (P = 0.033) correlated with the litter size. These findings would provide fresh insight into developing a sounder basis to accelerate molecular breeding in sheep via DNA markers in a marker-assisted selection strategy.
Collapse
Affiliation(s)
- Haixia Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hongwei Xu
- College of Life Science and Engineering, Northwest Minzu University, Lanzhou, Gansu 730030, China
| | - Zhanerke Akhatayeva
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Hongfei Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Chunjian Lin
- Tianjin Aoqun Sheep Industry Academy Company, Tianjin 300000, China
| | - Xufei Han
- Tianjin Aoqun Sheep Industry Academy Company, Tianjin 300000, China
| | - Xiaofang Lu
- Tianjin Aoqun Sheep Industry Academy Company, Tianjin 300000, China
| | - Xianyong Lan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qingfeng Zhang
- Tianjin Aoqun Sheep Industry Academy Company, Tianjin 300000, China.
| | - Chuanying Pan
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
| |
Collapse
|
11
|
|