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Gonzalez-Castro RA, Carnevale EM. Phospholipase C Zeta 1 (PLCZ1): The Function and Potential for Fertility Assessment and In Vitro Embryo Production in Cattle and Horses. Vet Sci 2023; 10:698. [PMID: 38133249 PMCID: PMC10747197 DOI: 10.3390/vetsci10120698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 12/01/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
Phospholipase C Zeta 1 (PLCZ1) is considered a major sperm-borne oocyte activation factor. After gamete fusion, PLCZ1 triggers calcium oscillations in the oocyte, resulting in oocyte activation. In assisted fertilization, oocyte activation failure is a major cause of low fertility. Most cases of oocyte activation failures in humans related to male infertility are associated with gene mutations and/or altered PLCZ1. Consequently, PLCZ1 evaluation could be an effective diagnostic marker and predictor of sperm fertilizing potential for in vivo and in vitro embryo production. The characterization of PLCZ1 has been principally investigated in men and mice, with less known about the PLCZ1 impact on assisted reproduction in other species, such as cattle and horses. In horses, sperm PLCZ1 varies among stallions, and sperm populations with high PLCZ1 are associated with cleavage after intracytoplasmic sperm injection (ICSI). In contrast, bull sperm is less able to initiate calcium oscillations and undergo nuclear remodeling, resulting in poor cleavage after ICSI. Advantageously, injections of PLCZ1 are able to rescue oocyte failure in mouse oocytes after ICSI, promoting full development and birth. However, further research is needed to optimize PLCZ1 diagnostic tests for consistent association with fertility and to determine whether PLCZ1 as an oocyte-activating treatment is a physiological, efficient, and safe method for improving assisted fertilization in cattle and horses.
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Affiliation(s)
| | - Elaine M. Carnevale
- Equine Reproduction Laboratory, Department of Biomedical Sciences, Colorado State University, Fort Collins, CO 80523, USA;
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Search for Associations of FSHR, INHA, INHAB, PRL, TNP2 and SPEF2 Genes Polymorphisms with Semen Quality in Russian Holstein Bulls (Pilot Study). Animals (Basel) 2021; 11:ani11102882. [PMID: 34679903 PMCID: PMC8532936 DOI: 10.3390/ani11102882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/27/2021] [Accepted: 09/29/2021] [Indexed: 11/16/2022] Open
Abstract
The aim of the study was to search for new mutations in the previously studied gene loci of follicle-stimulating hormone receptor (FSHR), inhibin α (INHA), inhibin β A (INHAB), prolactin (PRL), transition protein 2 (TNP2), and sperm flagella 2 (SPEF2) by sequencing, as well as the search for associations of previously identified mutations at these loci with fresh semen quality in Russian Holstein bulls. Phenotypic data from 189 bulls was collected. Data was analyzed for most bulls for three years of semen collection. The maximum value of each semen quality indicator (doublet ejaculate volume, sperm concentration, progressive motility and total number of spermatozoa) were selected. SNPs were identified in the FSHR, INHA, INHAB, TNP2, SPEF2 genes. The PRL gene did not have polymorphism. Significant (p < 0.05) associations of polymorphisms in the FSHR gene with double ejaculate volume, concentration and total number of spermatozoa were identified. Polymorphism in the INHA gene was significantly associated (p < 0.05) with sperm concentration. Polymorphism in the INHAB gene was significantly associated (p < 0.05) with doublet ejaculate volume and total number of spermatozoa. Polymorphisms in the TNP2 and SPEF2 genes did not have significant associations with semen quality. The SNPs studied in our pilot work may be considered as candidate genetic markers in the selection of bulls.
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Laseca N, Anaya G, Peña Z, Pirosanto Y, Molina A, Demyda Peyrás S. Impaired Reproductive Function in Equines: From Genetics to Genomics. Animals (Basel) 2021; 11:393. [PMID: 33546520 PMCID: PMC7913728 DOI: 10.3390/ani11020393] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 01/29/2021] [Accepted: 01/31/2021] [Indexed: 12/15/2022] Open
Abstract
Fertility is one of the key factors in the economic and productive success of the equine industry. Despite this, studies on the genetic causes affecting reproductive performance are scarce, especially in mares, where the genetic architecture of the reproductive traits is extremely complex. Today, with the increasing availability of new genomic methodologies for this species, we are presented with an interesting opportunity to understand the genetic basis of equine reproductive disorders. These include, among others, novel techniques for detecting chromosomal abnormalities, whose association with infertility in horses was established over 50 years ago; new sequencing technologies permitting an accurate detection of point mutations influencing fertility, as well as the study of inbreeding and molecular homozygosity, which has been widely suggested as one of the main causes of low reproductive performance in horses. Finally, over the last few years, reproductive performance has also been associated with copy number variants and candidate genes detected by genome-wide association studies on fertility traits. However, such studies are still scarce, probably because they depend on the existence of large and accurate phenotypic datasets of reproductive and/or fertility traits, which are still difficult to obtain in equines.
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Affiliation(s)
- Nora Laseca
- Departamento de genética, Universidad de Córdoba, Campus de Rabanales Ctra, Madrid-Cádiz, km 396, 14071 Córdoba, Spain; (N.L.); (G.A.); (Z.P.); (A.M.)
| | - Gabriel Anaya
- Departamento de genética, Universidad de Córdoba, Campus de Rabanales Ctra, Madrid-Cádiz, km 396, 14071 Córdoba, Spain; (N.L.); (G.A.); (Z.P.); (A.M.)
| | - Zahira Peña
- Departamento de genética, Universidad de Córdoba, Campus de Rabanales Ctra, Madrid-Cádiz, km 396, 14071 Córdoba, Spain; (N.L.); (G.A.); (Z.P.); (A.M.)
| | - Yamila Pirosanto
- Departamento de Producción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Argentina;
- Consejo Superior de Investigaciones Científicas y Tecnológicas (CONICET), CCT-La Plata, La Plata 1900, Argentina
| | - Antonio Molina
- Departamento de genética, Universidad de Córdoba, Campus de Rabanales Ctra, Madrid-Cádiz, km 396, 14071 Córdoba, Spain; (N.L.); (G.A.); (Z.P.); (A.M.)
| | - Sebastián Demyda Peyrás
- Departamento de Producción Animal, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata 1900, Argentina;
- Consejo Superior de Investigaciones Científicas y Tecnológicas (CONICET), CCT-La Plata, La Plata 1900, Argentina
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Long JA. The ‘omics’ revolution: Use of genomic, transcriptomic, proteomic and metabolomic tools to predict male reproductive traits that impact fertility in livestock and poultry. Anim Reprod Sci 2020; 220:106354. [DOI: 10.1016/j.anireprosci.2020.106354] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 03/20/2020] [Accepted: 03/21/2020] [Indexed: 12/17/2022]
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Yu DY, Wu RZ, Zhao Y, Nie ZH, Wei L, Wang TY, Liu ZP. Polymorphisms of four candidate genes and their correlations with growth traits in blue fox (Alopex lagopus). Gene 2019; 717:143987. [PMID: 31362037 DOI: 10.1016/j.gene.2019.143987] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 07/16/2019] [Accepted: 07/16/2019] [Indexed: 11/16/2022]
Abstract
To improve the accuracy and genetic progress of blue fox breeding, the relationships between genetic polymorphisms and growth and reproductive traits of the blue fox were investigated. MC4R, MC3R, INHA and INHBA were selected as candidate genes for molecular evolution and statistical analyses. Single-factor variance analyses showed that the MC4R (g.267C > T, g.423C > T, and g.731C > A) and MC3R (g.677C > T) genotypes had significant impacts on body weight, chest circumference, abdominal perimeter and body mass index (BMI) (P < 0.05) in blue fox. The MC4R and MC3R combined genotypes had significant effects on the body weight and abdominal circumference. The different genotypes of INHA g.75G > A had significant effects on female fecundity, whereas the different genotypes of INHBA g.404G > T and g.467G > T and the INHA and INHBA combined genotypes had significant effects on male fecundity. The proteins encoded by the open reading frames (ORFs) of different polymorphic loci were predicted and analysed. The aims of this study were to identify genetic markers related to growth and reproduction in the blue fox and to provide an efficient, economical and accurate theoretical approach for auxiliary fox breeding.
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Affiliation(s)
- Dong-Yue Yu
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Ru-Zi Wu
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Yao Zhao
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Zi-Han Nie
- College of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Lai Wei
- Hualong Blue Fox Breeding Company, Harbin, China
| | - Tian-Yi Wang
- Hualong Blue Fox Breeding Company, Harbin, China
| | - Zhi-Ping Liu
- College of Wildlife Resources, Northeast Forestry University, Harbin, China.
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Zhou X, Yang S, Yan F, He K, Zhao A. Genome-wide DNA methylation profiles of porcine ovaries in estrus and proestrus. Physiol Genomics 2018; 50:714-723. [PMID: 29775429 DOI: 10.1152/physiolgenomics.00052.2017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
DNA methylation is an important epigenetic modification involved in the estrous cycle and the regulation of reproduction. Here, we investigated the genome-wide profiles of DNA methylation in porcine ovaries in proestrus and estrus using methylated DNA immunoprecipitation sequencing. The results showed that DNA methylation was enriched in intergenic and intron regions. The methylation levels of coding regions were higher than those of the 5'- and 3'-flanking regions of genes. There were 4,813 differentially methylated regions (DMRs) of CpG islands in the estrus vs. proestrus ovarian genomes. Additionally, 3,651 differentially methylated genes (DMGs) were identified in pigs in estrus and proestrus. The DMGs were significantly enriched in biological processes and pathways related to reproduction and hormone regulation. We identified 90 DMGs associated with regulating reproduction in pigs. Our findings can serve as resources for DNA methylome research focused on porcine ovaries and further our understanding of epigenetically regulated reproduction in mammals.
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Affiliation(s)
- Xiaolong Zhou
- College of Animal Science and Technology, Zhejiang Agriculture and Forestry University, Lin'an, China
| | - Songbai Yang
- College of Animal Science and Technology, Zhejiang Agriculture and Forestry University, Lin'an, China
| | - Feifei Yan
- College of Animal Science and Technology, Zhejiang Agriculture and Forestry University, Lin'an, China
| | - Ke He
- College of Animal Science and Technology, Zhejiang Agriculture and Forestry University, Lin'an, China
| | - Ayong Zhao
- College of Animal Science and Technology, Zhejiang Agriculture and Forestry University, Lin'an, China
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Nikbin S, Panandam JM, Yaakub H, Murugaiyah M. Association of novel SNPs in gonadotropin genes with sperm quality traits of Boer goats and Boer crosses. JOURNAL OF APPLIED ANIMAL RESEARCH 2018. [DOI: 10.1080/09712119.2017.1336441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Saeid Nikbin
- Department of Animal Science, Faculty of Agriculture, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Jothi Malar Panandam
- Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Malaysia
| | - Halimatun Yaakub
- Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, Serdang, Malaysia
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Reen JK, Kerekoppa R, Deginal R, Ahirwar MK, Kannegundla U, Chandra S, Palat D, Das DN, Kataktalware MA, Jeyakumar S, Isloor SK. Luteinizing hormone beta gene polymorphism and its effect on semen quality traits and luteinizing hormone concentrations in Murrah buffalo bulls. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2017; 31:1119-1126. [PMID: 29268581 PMCID: PMC6043452 DOI: 10.5713/ajas.17.0679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Accepted: 11/24/2017] [Indexed: 11/27/2022]
Abstract
Objective Present investigation was aimed to study the Single Nucleotide Variants of the luteinizing hormone beta (LHβ) gene and to analyze their association with the semen quality (fresh and post-thawed frozen semen) and luteinizing hormone (LH) concentrations in Murrah buffalo bulls. Methods Polymerase chain reaction–single stranded conformational polymorphism (PCR–SSCP) and Sanger sequencing method is used to study genetic variability in LHβ gene. LH assay was carried out using enzyme-linked immunosorbent assay method. A fixed general linear model was used to analyze association of single nucleotide polymorphism (SNP) of LHβ gene with semen quality in 109 and LH concentrations in 80 Murrah bulls. Results LHβ gene was found to be polymorphic. Total six SNPs were identified in LHβ gene g C356090A, g C356113T, g A356701G, g G355869A, g G356330C, and g G356606T. Single Stranded Conformational Polymorphism variants of pattern 2 of exon 1+pattern 2 of exon 2+pattern 1 of exon 3 had highly significant (p<0.01) effect on sperm concentration (million/mL), percent mass motility, acrosome integrity and membrane integrity in fresh and frozen semen whereas significant (p<0.05) effect was observed on percent live spermatozoa. SSCP variants of pattern 2 of exon 1+pattern 2 of exon 2+pattern 1 of exon 3 had highly significant (p<0.01) effect on luteinizing hormone concentrations too. Conclusion The observed association between SSCP variants of LHβ gene with semen quality parameters and LH concentrations indicated the possibilities of using LHβ as a candidate gene for identification of markers for semen quality traits and LH concentrations in Murrah buffaloes.
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Affiliation(s)
- Jagish Kour Reen
- Genetics Laboratory, Dairy Production Section, ICAR - National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030, India
| | - Ramesha Kerekoppa
- Genetics Laboratory, Dairy Production Section, ICAR - National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030, India
| | - Revanasiddu Deginal
- Genetics Laboratory, Dairy Production Section, ICAR - National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030, India
| | - Maneesh Kumar Ahirwar
- Livestock Research Centre, ICAR-National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030 India
| | - Uday Kannegundla
- Genetics Laboratory, Dairy Production Section, ICAR - National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030, India
| | - Satish Chandra
- Genetics Laboratory, Dairy Production Section, ICAR - National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030, India
| | - Divya Palat
- Genetics Laboratory, Dairy Production Section, ICAR - National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030, India
| | - Dayal Nitai Das
- Genetics Laboratory, Dairy Production Section, ICAR - National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030, India
| | - Mukund Amritrao Kataktalware
- Livestock Research Centre, ICAR-National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030 India
| | - Sakthivel Jeyakumar
- Livestock Research Centre, ICAR-National Dairy Research Institute, Southern Regional Station, Adugodi, Bengaluru-560030 India
| | - Shri Krishna Isloor
- Department of Microbiology, Veterinary College, Hebbal, Bengaluru 560024, India
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Kjöllerström HJ, do Mar Oom M, Chowdhary BP, Raudsepp T. Fertility Assessment in Sorraia Stallions by Sperm-Fish and Fkbp6 Genotyping. Reprod Domest Anim 2016; 51:351-9. [PMID: 27020485 DOI: 10.1111/rda.12686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 02/27/2016] [Indexed: 01/10/2023]
Abstract
The Sorraia, a critically endangered indigenous Iberian horse breed, is characterized by low genetic variability, high rate of inbreeding, bad sperm quality and subfertility. Here, we studied 11 phenotypically normal but subfertile Sorraia stallions by karyotyping, sex chromosome sperm-FISH and molecular analysis of FKBP6 - a susceptibility locus for impaired acrosome reaction (IAR). The stallions had normal sperm concentration (>300 million cells/ml), but the numbers of progressively motile sperm (21%) and morphologically normal sperm (28%) were invariably low. All stallions had a normal 64,XY karyotype. The majority of sperm (89%) had normal haploid sex chromosome content, although 11% of sperm carried various sex chromosome aneuploidies. No correlation was found between the percentage of sperm sex chromosome abnormalities and inbreeding, sperm morphology or stallion age. Direct sequencing of FKBP6 exon 4 for SNPs g.11040315G>A and g.11040379C>A revealed that none of the stallions had the susceptibility genotype (A/A-A/A) for IAR. Instead, all animals had a G/G-A/A genotype - a testimony of low genetic variability. The findings ruled out chromosomal abnormalities and genetic predisposition for IAR as contributing factors for subfertility. However, low fertility of the Sorraia stallions could be partly attributed to relatively higher rate of sex chromosome aneuploidies in the sperm.
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Affiliation(s)
- H J Kjöllerström
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.,Department of Veterinary Integrative Biosciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
| | - M do Mar Oom
- cE3c - Centre for Ecology, Evolution and Environmental Changes, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | | | - T Raudsepp
- Department of Veterinary Integrative Biosciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, Texas, USA
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Seminal plasma and serum fertility biomarkers in dromedary camels (Camelus dromedarius). Theriogenology 2015; 83:650-4. [DOI: 10.1016/j.theriogenology.2014.10.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/31/2014] [Accepted: 10/31/2014] [Indexed: 11/22/2022]
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Schrimpf R, Dierks C, Martinsson G, Sieme H, Distl O. Genome-wide association study identifies phospholipase C zeta 1 (PLCz1) as a stallion fertility locus in Hanoverian warmblood horses. PLoS One 2014; 9:e109675. [PMID: 25354211 PMCID: PMC4212906 DOI: 10.1371/journal.pone.0109675] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 09/02/2014] [Indexed: 12/13/2022] Open
Abstract
A consistently high level of stallion fertility plays an economically important role in modern horse breeding. We performed a genome-wide association study for estimated breeding values of the paternal component of the pregnancy rate per estrus cycle (EBV-PAT) in Hanoverian stallions. A total of 228 Hanoverian stallions were genotyped using the Equine SNP50 Beadchip. The most significant association was found on horse chromosome 6 for a single nucleotide polymorphism (SNP) within phospholipase C zeta 1 (PLCz1). In the close neighbourhood to PLCz1 is located CAPZA3 (capping protein (actin filament) muscle Z-line, alpha 3). The gene PLCz1 encodes a protein essential for spermatogenesis and oocyte activation through sperm induced Ca2+-oscillation during fertilization. We derived equine gene models for PLCz1 and CAPZA3 based on cDNA and genomic DNA sequences. The equine PLCz1 had four different transcripts of which two contained a premature termination codon. Sequencing all exons and their flanking sequences using genomic DNA samples from 19 Hanoverian stallions revealed 47 polymorphisms within PLCz1 and one SNP within CAPZA3. Validation of these 48 polymorphisms in 237 Hanoverian stallions identified three intronic SNPs within PLCz1 as significantly associated with EBV-PAT. Bioinformatic analysis suggested regulatory effects for these SNPs via transcription factor binding sites or microRNAs. In conclusion, non-coding polymorphisms within PLCz1 were identified as conferring stallion fertility and PLCz1 as candidate locus for male fertility in Hanoverian warmblood. CAPZA3 could be eliminated as candidate gene for fertility in Hanoverian stallions.
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Affiliation(s)
- Rahel Schrimpf
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Claudia Dierks
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Hannover, Germany
| | | | - Harald Sieme
- Clinic for Horses, Unit for Reproduction Medicine, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ottmar Distl
- Institute for Animal Breeding and Genetics, University of Veterinary Medicine Hannover, Hannover, Germany
- * E-mail:
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Tripathi UK, Aslam MKM, Pandey S, Nayak S, Chhillar S, Srinivasan A, Mohanty TK, Kadam PH, Chauhan MS, Yadav S, Kumaresan A. Differential proteomic profile of spermatogenic and Sertoli cells from peri-pubertal testes of three different bovine breeds. Front Cell Dev Biol 2014; 2:24. [PMID: 25364731 PMCID: PMC4206989 DOI: 10.3389/fcell.2014.00024] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Accepted: 05/14/2014] [Indexed: 12/11/2022] Open
Abstract
Sub-fertility is one of the most common problems observed in crossbred males, but the etiology remains unknown in most of the cases. Although proteomic differences in the spermatozoa and seminal plasma between breeds have been investigated, the possible differences at the sperm precursor cells and supporting/nourishing cells have not been studied. The present study reports the differential proteomic profile of spermatogenic and Sertoli cells in crossbred and purebred bulls. Testis was removed by unilateral castration of 12 peri-pubertal bulls (10 months age), four each from crossbred (Holstein Friesian × Tharparkar), exotic purebred [Holstein Friesian (HF)] and indigenous purebred [Tharparkar (TP)] bulls. Spermatogenic and Sertoli cells were isolated and subjected to proteomic analysis. Protein extracts from the Sertoli and spermatogenic cells of each breed were analyzed with 2-dimensional difference gel electrophoresis (2D-DIGE) and analyzed with Decyder™ software. Compared to HF, 26 protein spots were over expressed and 14 protein spots were under expressed in spermatogenic cells of crossbred bulls. Similarly, 7 protein spots were over expressed and 15 protein spots were under expressed in the spermatogenic cells of TP bulls compared to that of crossbred bulls. Out of 12 selected protein spots identified through mass spectrometry, Phosphatidyl ethanolamine binding protein was found to be over expressed in the spermatogenic cells of crossbred bulls compared to TP bulls. The protein, gamma actin was found to be over expressed in the Sertoli cells of HF bulls, whereas Speedy Protein-A was found to be over expressed in Sertoli cells of crossbred bulls. It may be concluded that certain proteomic level differences exist in sperm precursor cells and nourishing cells between breeds, which might be associated with differences in the fertility among these breeds.
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Affiliation(s)
- Utkarsh K Tripathi
- Theriogenology Lab, Livestock Production Management, National Dairy Research Institute Karnal, India
| | - Muhammad K M Aslam
- Theriogenology Lab, Livestock Production Management, National Dairy Research Institute Karnal, India
| | - Shashank Pandey
- Department of Biophysics, All India Institute of Medical Sciences New Delhi, India
| | - Samiksha Nayak
- Theriogenology Lab, Livestock Production Management, National Dairy Research Institute Karnal, India
| | - Shivani Chhillar
- Theriogenology Lab, Livestock Production Management, National Dairy Research Institute Karnal, India
| | - A Srinivasan
- Department of Biophysics, All India Institute of Medical Sciences New Delhi, India
| | - T K Mohanty
- Theriogenology Lab, Livestock Production Management, National Dairy Research Institute Karnal, India
| | - Prashant H Kadam
- Embryo Biotechnology Lab, Animal Biotechnology Centre, National Dairy Research Institute Karnal, India
| | - M S Chauhan
- Embryo Biotechnology Lab, Animal Biotechnology Centre, National Dairy Research Institute Karnal, India
| | - Savita Yadav
- Department of Biophysics, All India Institute of Medical Sciences New Delhi, India
| | - Arumugam Kumaresan
- Theriogenology Lab, Livestock Production Management, National Dairy Research Institute Karnal, India
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Dyck MK, Foxcroft GR, Novak S, Ruiz-Sanchez A, Patterson J, Dixon WT. Biological markers of boar fertility. Reprod Domest Anim 2012; 46 Suppl 2:55-8. [PMID: 21884279 DOI: 10.1111/j.1439-0531.2011.01837.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The semen evaluation techniques used in most commercial artificial insemination centers, which includes sperm motility and morphology measurements, provides a very conservative estimate of the relative fertility of individual boars. As well, differences in relative boar fertility are masked by the widespread use of pooled semen for commercial artificial insemination (AI) in many countries. Furthermore, the relatively high sperm numbers used in commercial AI practice usually compensate for reduced fertility, as can be seen in some boars when lower numbers of sperm are used for AI. The increased efficiency of pork production should involve enhanced use of boars with strong reproductive efficiency and the highest genetic merit for important production traits. Given that the current measures of semen quality are not always indicative of fertility and reproductive performance in boars, accurate and predictive genetic and protein markers are still needed. Recently, significant efforts have been made to identify reliable markers that allow for the identification and exclusion of sires with reduced reproductive efficiency. This paper reviews the current status of proteomic and genomic markers of fertility in boars in relation to other livestock species.
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Affiliation(s)
- M K Dyck
- Swine Reproduction-Development Program, Swine Research & Technology Centre, University of Alberta, Edmonton, Alberta, Canada.
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Polymorphisms in follicle stimulation hormone receptor, inhibin alpha, inhibin bata A, and prolactin genes, and their association with sperm quality in Chinese Holstein bulls. Anim Reprod Sci 2011; 126:151-6. [PMID: 21684095 DOI: 10.1016/j.anireprosci.2011.04.023] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Revised: 04/17/2011] [Accepted: 04/26/2011] [Indexed: 11/22/2022]
Abstract
Candidate genes follicle stimulation hormone receptor (FSHR), inhibin alpha (INHA), inhibin bata A (INHBA) and prolactin (PRL) were investigated for their association with sperm quality traits of semen volume per ejaculate (VOL), sperm concentration (SCON), motility (MOT), sperm motility in frozen semen (FMOT), acrosome integrity rate (AIR) and abnormal sperm rate (ASR) in a total of 123 normal mature Holstein bulls. Three reported single nucleotide polymorphisms (SNPs) of FSHR A-234500T (rs43676359), IHNA A192G (rs41257116), and IHNBA C7639T (rs43408735), and 3 novel SNPs (G7550A, C7661T, and T8370C) in exons 4 and 5 of bovine PRL gene (NC 007324) were analyzed. Analysis of variance revealed that FSHR A-234500T and INHBA C7639T polymorphisms significantly associated with VOL (P<0.05) and SCON (P<0.05), and the polymorphism of INHBA C7639T also had significant effects on MOT (P<0.05). Furthermore, the INHA A192G polymorphism significantly associated with AIR (P<0.05). No significant differences were found between the polymorphisms of PRL gene and sperm quality traits.
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SILVER IA, JEFFCOTT LB, ROSSDALE PD. Fifty years of the British Equine Veterinary Association as a facilitator of progress in equine clinical science. Equine Vet J 2011; 43:618-31. [DOI: 10.1111/j.2042-3306.2011.00379.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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