1
|
Du Y, Xia Y, Xu J, Liu Z, Liu Z, Zhang M, Xu G, Xing X, Du F. Effects of donor age and reproductive history on developmental potential of ovum pickup oocytes in Japanese Black cattle (Wagyu). Theriogenology 2024; 221:25-30. [PMID: 38537318 DOI: 10.1016/j.theriogenology.2024.03.012] [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: 11/08/2023] [Revised: 03/16/2024] [Accepted: 03/22/2024] [Indexed: 04/09/2024]
Abstract
The objectives of this study were to analyze the (1) effects of donor age and multiparity on development of in vitro fertilization (IVF) embryos after ovum pickup (OPU), (2) effects of repeated and consecutive OPU-IVF procedures on embryo development, and (3) embryo production from OPU-IVF in donors with differing embryo yields after multiple ovulation and embryo transfer technology (MOET) in Japanese Black cattle (Wagyu). Donors were pre-treated with low-dosage follicle-stimulating hormone (FSH; 200 IU total), and oocytes were collected via OPU and fertilized by IVF to generate blastocysts. The number of oocytes collected per OPU session per donor was lower in heifers (2-4 years old, 5.3 oocytes) than in primiparous and pluriparous cows (2-10 years old, 13.6-19.1 oocytes; P < 0.05). Rates of blastocyst development for oocytes from heifers (33.1%) were lower than for those from cows (2-10 years old, 44.1-54.3%; P < 0.05), and average blastocyst yield/OPU/animal was lower in heifers (3.7) than in 5-6 years old cows (10.1; P < 0.05). Donors undergoing five consecutive OPU-IVF sessions after low-dosage FSH showed similar oocyte retrieval (12.2-15.1 oocytes per OPU/animal), blastocyst development rates (35.6-45.0%), and embryo yield/OPU/animal (4.8-5.8; P > 0.05) across sessions. Additionally, embryo yield from OPU-IVF was significantly improved in animals with previous low embryo yield from MOET (5.9 vs. 2.6, respectively, P < 0.05). These results indicate that Wagyu cows with previous births can be more productive as OPU-IVF donors than heifers, and oocytes from donors undergoing to five consecutive OPU-IVF cycles are competent for embryo development without loss of embryo yield/OPU/animal. Moreover, OPU-IVF can be used for embryo production and breeding from all elite Japanese Black cattle, regardless of previous low embryo yield in routine MOET.
Collapse
Affiliation(s)
- Yinyan Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Yuhan Xia
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Jiahui Xu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Zhihui Liu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China
| | - Zhentian Liu
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China
| | - Meijie Zhang
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China
| | - Guangyong Xu
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China
| | - Xuesong Xing
- Qingdao Longmingniu Embryo Biotechnologies Co. LTD, Qingdao, Shandong, 266400, PR China.
| | - Fuliang Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, 210023, PR China.
| |
Collapse
|
2
|
Dadarwal D, Pfeifer L, Cervantes M, Adams GP, Singh J. Effect of maternal age on ATP content and distribution of mitochondria in bovine oocytes. PLoS One 2024; 19:e0302444. [PMID: 38635580 PMCID: PMC11025864 DOI: 10.1371/journal.pone.0302444] [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: 10/30/2023] [Accepted: 04/03/2024] [Indexed: 04/20/2024] Open
Abstract
Our objective was to understand how maternal age influences the mitochondrial population and ATP content of in vivo matured bovine oocytes. We hypothesized that in vivo matured oocytes from older cows would have altered mitochondrial number and distribution patterns and lower cytoplasmic ATP content compared to the oocytes obtained from younger cows. Follicles ≥5mm were ablated in old cows (13 to 22 yrs, Old Group, n = 7) and their younger daughters (4 to 10 years old, Young Group; n = 7) to induce the emergence of a new follicular wave. Cows were treated twice daily with eight doses of FSH starting 24 hr after ablation (Day 0, day of wave emergence). Prostaglandin F2alpha (PGF) was given on Days 3 and 3.5, LH on Day 4.5, and cumulus-oocyte-complexes were collected 18-20 hours post-LH by ultrasound-guided follicular aspiration. Oocytes were either processed for staining with MitoTracker Deep Red FM or for ATP assay. Stained oocytes were imaged with a Zeiss LSM 710 confocal microscope, and mitochondria were segmented in the oocyte volume sets using Imaris Pro 7.4. In vivo matured oocytes obtained from old cows were similar in morphological grades to those from young cows. However, the oocytes of COC from older cows had 23% less intracellular ATP (27.4±1.9 vs 35.7±2.2 pmol per oocyte, P = 0.01) than those of young cows. Furthermore, the average volume of individual mitochondria, indicated by the number of image voxels, was greater (P<0.05) in oocytes from older cows than in those from younger cows. Oocytes from older cows also tended to have a greater number of mitochondrial clusters (P = 0.06) and an increased number of clusters in the central region of the oocytes (P = 0.04) compared to those from younger cows. In conclusion, our study demonstrated that maternal age was associated with a decrease in the cytoplasmic ATP content of in vivo mature oocytes and an altered distribution of mitochondrial structures. These findings suggest that maternal age may negatively influence the developmental competence of oocytes from older cows.
Collapse
Affiliation(s)
- Dinesh Dadarwal
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK Canada
| | - Luiz Pfeifer
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK Canada
| | - Miriam Cervantes
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK Canada
| | - Gregg P. Adams
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK Canada
| | - Jaswant Singh
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK Canada
| |
Collapse
|
3
|
Ferré LB, Alvarez-Gallardo H, Romo S, Fresno C, Stroud T, Stroud B, Lindsey B, Kjelland ME. Transvaginal ultrasound-guided oocyte retrieval in cattle: State-of-the-art and its impact on the in vitro fertilization embryo production outcome. Reprod Domest Anim 2023; 58:363-378. [PMID: 36510745 DOI: 10.1111/rda.14303] [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: 06/17/2022] [Revised: 10/02/2022] [Accepted: 11/16/2022] [Indexed: 12/14/2022]
Abstract
Transvaginal ultrasound-guided oocyte retrieval (commonly called OPU) and in vitro embryo production (IVP) in cattle has shown significant progress in recent years, in part, as a result of a better understanding of the full potential of these tools by end users. The combination of OPU and IVP (OPU-IVP) has been successfully and widely commercially used worldwide. The main advantages are a greater number of embryos and pregnancies per unit of time, faster genetic progress due to donor quick turn around and more elite sires mating combinations, larger spectrum of female age (calves, prepuberal, heifer, cow) and condition (open, pregnant) from which to retrieve oocytes, a reduced number of sperm (even sexed) required to fertilize the oocytes, among other benefits. OPU-IVP requires significant less donor preparation in comparison to conventional embryo transfer (<50% of usual FSH injections needed) to the extent of no stimulating hormones (FSH) are necessary. Donor synchronization, stimulation, OPU technique, oocyte competence, embryo performance, and its impact on cryopreservation and pregnancy are discussed.
Collapse
Affiliation(s)
- Luis B Ferré
- National Institute of Agricultural Technology (INTA), Chacra Experimental Integrada Barrow (MDA-INTA), Tres Arroyos, Argentina
| | - Horacio Alvarez-Gallardo
- Centro Nacional de Recursos Genéticos, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Tepatitlán de Morelos, Jalisco, Mexico
| | - Salvador Romo
- Laboratorio de Reproducción, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán, Estado de Mexico, Mexico
| | - Cristóbal Fresno
- Health Sciences Research Center (CICSA), Anáhuac University of México, Huixquilucan, Mexico
| | | | - Brad Stroud
- Stroud Veterinary Embryo Services, Inc, Weatherford, Texas, USA
| | | | - Michael E Kjelland
- Conservation, Genetics and Biotech, LLC, Valley City, North Dakota, USA.,Mayville State University, Mayville, North Dakota, USA
| |
Collapse
|
4
|
Alvarez RH, Bayeux BM, Joaquim DA, Watanabe YF, Humblot P. Antral follicle count, oocyte production and embryonic developmental competence of senescent Nellore (Bos indicus) cows. Theriogenology 2021; 174:27-35. [PMID: 34416561 DOI: 10.1016/j.theriogenology.2021.08.016] [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: 03/10/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
Information on the follicular population and oocyte quality of cows in the final period of reproductive life is scarce. The present study aimed to compare the antral follicle count (AFC), oocyte production and embryonic developmental competence of young versus long-lived and senescent Bos indicus beef cows. Nellore cows (Bos indicus) were classified into three groups according to age: young (4-9 years, n = 10), long-lived (14-17 years, n = 10) and senescent (17-23 years, n = 10). At a random time in the estrus cycle, the cows received cloprostenol sodium salt (0.5 mg, IM), estradiol benzoate (1 mg, IM) and an intravaginal P4 device (1.4 g). Five days later, the P4 devise was removed and oocyte collection (OPU1) was performed. A second OPU (OPU2) was performed 5 days after the first in order to aspirate only growing follicles. During each OPU, AFC and the number and quality of cumulus-oocyte complexes (COCs) were evaluated. Then, the COCs were placed in standard maturation medium (IVM), fertilized and incubated for 9 days. The data were subjected to ANOVA and Multinomial Logistic Regression. The AFC was smaller in long-lived and senescent cows in both OPU1 and OPU2 when compared to younger cows. There was no difference in AFC between OPU1 (19.9 ± 1.8) and OPU2 (17.6 ± 1.9) in young cows, however, more follicles were punctured in long-lived and senescent cows in OPU1 (12.0 ± 2.6 and 19.3 ± 4.6) than in OPU2 (9.2 ± 1.9 and 10.3 ± 2.3), respectively (P < 0.01). The numbers of COCs recovered from young cows (OPU1 = 14.2 ± 1.8; OPU2 = 8.4 ± 0.9) were higher than those obtained from long-lived cows (OPU1 = 5.9 ± 2.3; OPU2 = 4.3 ± 1.0) and senescent cows (OPU1 = 7.2 ± 3.0; OPU2 = 4.1 ± 1.7), respectively (P < 0.05). The cleavage rate did not differ between groups. However, the rate of blastocyst formation was higher for young (64.8%) and long-lived (65.0%) compared to senescent (16.5%) cows (P < 0.01). In conclusion our results indicate that the AFC is lower in long-lived and senescent cows compared with young cows. However, unlike in senescent cows, the embryonic development of long-lived cows is similar to that of young cows. This suggests that Nellore cows aged >17 years begin to have reduced embryonic development capacity due to ovarian aging.
Collapse
Affiliation(s)
- Rafael Herrera Alvarez
- São Paulo Agribusiness Technology Agency (APTA/SAA), Polo Regional Centro Sul, Rod SP 127, Km 30 Caixa Postal 28, Piracicaba, SP, 13400-970, Brazil.
| | | | - Daniel A Joaquim
- Vitrogen, Av. Coronel José Nogueira Terra, 203, Cravinhos, SP, 14140-000, Brazil
| | - Yeda Fumie Watanabe
- Vitrogen, Av. Coronel José Nogueira Terra, 203, Cravinhos, SP, 14140-000, Brazil
| | - Patrice Humblot
- Division of Reproduction, Department of Clinical Sciences, SLU, Uppsala, Sweden
| |
Collapse
|
5
|
Magata F, Ideta A, Matsuda F, Urakawa M, Oono Y. Glutathione ethyl ester improved the age-induced decline in the developmental competence of bovine oocytes. Theriogenology 2021; 167:37-43. [PMID: 33744770 DOI: 10.1016/j.theriogenology.2021.03.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 03/02/2021] [Accepted: 03/06/2021] [Indexed: 01/27/2023]
Abstract
The aberrant redox regulation and anti-oxidative defense is one of the main causes of age-induced decline in oocytes quality and embryo development in mammals. The present study aimed to elucidate the effect of glutathione ethyl ester (GSH-OEt), a cell-permeable glutathione (GSH) donor, on the developmental competence of oocytes in cows with advanced reproductive age. Oocytes were collected from cows aged 30-50 months or >120 months, which were defined as young or aged, respectively, and subjected to in vitro maturation (IVM) in the presence of 5 mM of GSH-OEt. In aged cows, the GSH level in follicular fluid was lower, and the intracellular levels of reactive oxygen species (ROS) in post-IVM oocytes was higher than those in young cows. GSH-OEt supplementation during IVM reduced the ROS contents of oocyte in aged cows but not in young cows. GSH-OEt treatment promoted the meiotic progression and increased the proportion of oocytes with mature cytoplasm containing evenly dispersed cortical granules in aged cows. After in vitro fertilization, the normal fertilization and development to the blastocyst stage were enhanced by GSH-OEt in aged cows to levels comparable to those in young cows. Further, oocyte maturation in the presence of GSH-OEt increased the proportion of diploid blastocyst in aged cows. In contrast, GSH-OEt failed to enhance the oocyte maturation, fertilization, and embryo development in young cows. Taken together, the exogenous supplementation of GSH-OEt during IVM modulated the age-related oxidative damage of bovine oocytes and improved the developmental competence of oocytes in aged cows. Oocytes presented a distinct response to GSH-OEt treatment depending on the donor age. GSH-OEt supplementation during IVM could be of practical value through the efficiency improvement of chromosomally normal embryo production in aged cows.
Collapse
Affiliation(s)
- F Magata
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, Japan; Department of Veterinary Medical Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
| | - A Ideta
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, Japan
| | - F Matsuda
- Department of Veterinary Medical Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - M Urakawa
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, Japan
| | - Y Oono
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido, Japan
| |
Collapse
|
6
|
The blueprint of RNA storages relative to oocyte developmental competence in cattle (Bos taurus). Biol Reprod 2020; 102:784-794. [DOI: 10.1093/biolre/ioaa015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/04/2019] [Accepted: 01/22/2020] [Indexed: 12/22/2022] Open
Abstract
Abstract
From the time oocytes leave quiescence, there are constant microenvironmental influences contributing to development, thus acquiring developmental competence is not a simple, linear phenomenon. During folliculogenesis, oocytes experience many morphological and cytological changes that contribute toward the acquisition of developmental competence, a process defined by an oocyte’s ability to progress through folliculogenesis, be fertilized, undergo cleavage, and develop into an embryo. Many factors, such as ovarian follicle size, cow age, and the morphology of the cumulus–oocyte complex, have been extensively investigated to understand this process. In parallel to aiding in the understanding of oocyte biology, these features have been used to characterize an oocyte’s ability to achieve competence. In addition, oocytes undergo intense gene transcription and protein translation to accumulate the maternal stores. When the oocyte is fully grown, most genes are transcriptionally inactive, and the chromatin is densely compacted. More recently, RNA profiling has been used to further define the transcriptional parameters that are associated with oocyte development. Here, focusing on cattle, we provide an overview of the experimental models commonly used to understand the underlying biology related to oocyte developmental competence. We compiled public data and showed that cattle oocytes can express over 15 000 protein-coding genes, suggesting a complex transcriptome landscape. Surprisingly, less than 2% of the expressed genes have been linked to developmental competence. The identification of the gene products that contribute to oocyte development, and understanding their biological function, are a vital component of our quest toward defining oocyte developmental competence at the molecular level.
Collapse
|
7
|
Seneda MM, Zangirolamo AF, Bergamo LZ, Morotti F. Follicular wave synchronization prior to ovum pick-up. Theriogenology 2020; 150:180-185. [PMID: 31982155 DOI: 10.1016/j.theriogenology.2020.01.024] [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: 01/11/2020] [Accepted: 01/12/2020] [Indexed: 11/28/2022]
Abstract
Among the reproductive biotechnologies, in vitro embryo production (IVEP) is an important tool for multiplying genetic material of superior merit. Recently, the number of embryos produced and transferred in vitro became significantly higher than that produced in vivo worldwide. In this context, the enhancement was attributable to ovum pick-up (OPU). With the advent of genomic technology, shortened breeding intervals, and increased selection accuracy, IVEP has attracted increasing attention for commercial use. The IVEP technique is well-established, but the embryo production rate has reached a plateau at 30-40%. Despite constant advances, the OPU/IVEP programs face some challenges that hinder the efficient application of the technique. Previous studies have shown that the quantity and quality of aspirated oocytes are essential factors for successful IVEP. This paper presents a brief overview of alternatives that can be employed to improve the process-seeking methods that assist in the recovery of better-quality oocytes and higher competence in OPU to improve embryo production. These strategies include using follicular wave synchronization prior to OPU, employing the influence of antral follicle populations, using the pre-OPU gonadotrophic stimulus and applying non-hormonal methods for selecting female donors.
Collapse
Affiliation(s)
- Marcelo Marcondes Seneda
- Universidade Estadual de Londrina, Laboratório de Reprodução Animal, DCV-CCA-UEL, Londrina, Parana, Brazil; National Institute of Science and Technology for Dairy Production Chain (INCT-LEITE), Universidade Estadual de Londrina, Rodovia Celso Garcia Cid-Campus Universitário, PO Box 10011, Londrina, Parana, 86057-970, Brazil.
| | - Amanda Fonseca Zangirolamo
- Universidade Estadual de Londrina, Laboratório de Reprodução Animal, DCV-CCA-UEL, Londrina, Parana, Brazil; National Institute of Science and Technology for Dairy Production Chain (INCT-LEITE), Universidade Estadual de Londrina, Rodovia Celso Garcia Cid-Campus Universitário, PO Box 10011, Londrina, Parana, 86057-970, Brazil
| | - Larissa Zamparone Bergamo
- Universidade Estadual de Londrina, Laboratório de Reprodução Animal, DCV-CCA-UEL, Londrina, Parana, Brazil
| | - Fábio Morotti
- Universidade Estadual de Londrina, Laboratório de Reprodução Animal, DCV-CCA-UEL, Londrina, Parana, Brazil
| |
Collapse
|
8
|
Effect of Continuous Administration of Enalapril Maleate on the Oocyte Quality and In Vitro Production of Parthenote Embryos in Nulliparous and Multiparous Goats Undergoing Serial Laparoscopic Ovum Pick-Up. Animals (Basel) 2019; 9:ani9110868. [PMID: 31717727 PMCID: PMC6912557 DOI: 10.3390/ani9110868] [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: 09/26/2019] [Revised: 10/19/2019] [Accepted: 10/20/2019] [Indexed: 11/17/2022] Open
Abstract
The aim of this work was to determine the effect of enalapril maleate administration, during oocyte recovery by serial laparoscopic ovum pick-up (LOPU), on the ovarian response and in vitro embryo production (IVP). Twenty cross-bred goats were allocated equally into two groups: Nulliparous and Multiparous. In each group, five animals were selected to receive daily doses of enalapril maleate during the hormonal protocol. Estrus was synchronized by a PGF2α analog, followed 48 h later by insertion of an intravaginal device with progesterone. Forty-eight hours after, a single dose of FSH/eCG was administered. The FSH/eCG doses were repeated three times, on every four day. Oocytes were recovered by LOPU 24 h after each FSH/eCG dose. Viable oocytes were matured in vitro, to be parthenogenetically activated and cultured for 72 h to the cleavage stage. The drug treatment increased the proportion of total follicles observed at LOPU (p < 0.01) in multiparous goats. In both parity groups, enalapril administration had no effect on the proportion or quality of oocytes recovered. Furthermore, the number of embryos cleaved was similar between the groups. Thus, enalapril maleate affected the ovarian response in multiparous animals only and had no effect on the oocyte quality or IVP.
Collapse
|
9
|
Stronen AV, Pertoldi C, Iacolina L, Kadarmideen HN, Kristensen TN. Genomic analyses suggest adaptive differentiation of northern European native cattle breeds. Evol Appl 2019; 12:1096-1113. [PMID: 31293626 PMCID: PMC6597895 DOI: 10.1111/eva.12783] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 02/05/2019] [Accepted: 02/13/2019] [Indexed: 12/12/2022] Open
Abstract
Native domestic breeds represent important cultural heritage and genetic diversity relevant for production traits, environmental adaptation and food security. However, risks associated with low effective population size, such as inbreeding and genetic drift, have elevated concerns over whether unique within-breed lineages should be kept separate or managed as one population. As a conservation genomic case study of the genetic diversity represented by native breeds, we examined native and commercial cattle (Bos taurus) breeds including the threatened Danish Jutland cattle. We examined population structure and genetic diversity within breeds and lineages genotyped across 770K single nucleotide polymorphism loci to determine (a) the amount and distribution of genetic diversity in native breeds, and (b) the role of genetic drift versus selection. We further investigated the presence of outlier loci to detect (c) signatures of environmental selection in native versus commercial breeds, and (d) native breed adaptation to various landscapes. Moreover, we included older cryopreserved samples to determine (e) whether cryopreservation allows (re)introduction of original genetic diversity. We investigated a final set of 195 individuals and 677K autosomal loci for genetic diversity within and among breeds, examined population structure with principal component analyses and a maximum-likelihood approach and searched for outlier loci suggesting artificial or natural selection. Our findings demonstrate the potential of genomics for identifying the uniqueness of native domestic breeds, and for maintaining their genetic diversity and long-term evolutionary potential through conservation plans balancing inbreeding with carefully designed outcrossing. One promising opportunity is the use of cryopreserved samples, which can provide important genetic diversity for populations with few individuals, while helping to preserve their traditional genetic characteristics. Outlier tests for native versus commercial breeds identified genes associated with climate adaptation, immunity and metabolism, and native breeds may carry genetic variation important for animal health and robustness in a changing climate.
Collapse
Affiliation(s)
- Astrid V. Stronen
- Section of Biology and Environmental Science, Department of Chemistry and BioscienceAalborg UniversityAalborgDenmark
- Department of Biology, Biotechnical FacultyUniversity of LjubljanaLjubljanaSlovenia
- Department of Biotechnology and Life SciencesInsubria UniversityVareseItaly
| | - Cino Pertoldi
- Section of Biology and Environmental Science, Department of Chemistry and BioscienceAalborg UniversityAalborgDenmark
- Aalborg ZooAalborgDenmark
| | - Laura Iacolina
- Section of Biology and Environmental Science, Department of Chemistry and BioscienceAalborg UniversityAalborgDenmark
- Aalborg ZooAalborgDenmark
| | - Haja N. Kadarmideen
- Quantitative Genomics, Bioinformatics and Computational Biology Group, Department of Applied Mathematics and Computer ScienceTechnical University of DenmarkKongens LyngbyDenmark
| | - Torsten N. Kristensen
- Section of Biology and Environmental Science, Department of Chemistry and BioscienceAalborg UniversityAalborgDenmark
| |
Collapse
|
10
|
Effect of OPU Session Periods on the Efficiency of In Vitro Embryo Production in Elite Korean Native Cow. JOURNAL OF ANIMAL REPRODUCTION AND BIOTECHNOLOGY 2018. [DOI: 10.12750/jet.2018.33.4.265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
|
11
|
Magata F, Tsuchiya K, Okubo H, Ideta A. Application of intracytoplasmic sperm injection to the embryo production in aged cows. J Vet Med Sci 2018; 81:84-90. [PMID: 30473579 PMCID: PMC6361645 DOI: 10.1292/jvms.18-0284] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Reduction in oocyte quality is a major factor responsible for declining fertility associated with maternal aging in cows. The objective of the present study was to determine whether
intracytoplasmic sperm injection (ICSI) could increase the efficiency of embryo production in older cows. We used cows aged 30 to 50 months or >120 months, which were defined as young or
aged, respectively. The distribution of cortical granules in oocytes was affected by age as older cows had lower proportion of oocytes with mature cytoplasm containing evenly dispersed
cortical granules compared to young cows. Although fertilization rates did not differ significantly between the two groups after in vitro fertilization (IVF), the rate of
abnormal fertilization was higher, and the numbers of total and diploid blastocysts were lower for aged cows compared to young cows. However, in the embryos produced by ICSI, there was no
significant difference in these parameters between young and aged cows. Although ICSI did not improve the blastocyst development rate, ICSI increased the proportion of diploid blastocysts in
aged cows compared to IVF. In conclusion, maternal aging may negatively affect cytoplasmic maturation of bovine oocytes, which could be associated with abnormal fertilization or low
developmental competence of oocytes. Our data also suggests beneficial effects of ICSI on the production of chromosomally normal embryos in aged cows.
Collapse
Affiliation(s)
- Fumie Magata
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido 080-1407, Japan.,Department of Veterinary Medical Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Kanami Tsuchiya
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido 080-1407, Japan
| | - Haruna Okubo
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido 080-1407, Japan
| | - Atsushi Ideta
- Research and Development Group, Zen-noh Embryo Transfer Center, Kamishihoro, Hokkaido 080-1407, Japan
| |
Collapse
|
12
|
Juanpanich T, Suttirojpattana T, Liang Y, Dochi O, Parnpai R, Imai K. Effects of gel-embedded embryos on developmental competence of separated bovine blastomeres. Livest Sci 2018. [DOI: 10.1016/j.livsci.2017.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
13
|
Dog cloning with in vivo matured oocytes obtained using electric chemiluminescence immunoassay-predicted ovulation method. PLoS One 2017; 12:e0173735. [PMID: 28288197 PMCID: PMC5348006 DOI: 10.1371/journal.pone.0173735] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 02/24/2017] [Indexed: 11/19/2022] Open
Abstract
Radioactive immunoassay (RIA) is a traditional serum hormone assay method, but the application of the method in reproductive studies is limited by the associated radioactivity. The aim of present study was to evaluate the reliability of RIA and to compare its canine serum progesterone concentration determination accuracy to that of the electric chemiluminescence immunoassay (ECLI). In vivo matured oocytes were utilized for canine somatic cell nuclear transfer (SCNT), and serum progesterone levels were assessed to accurately determine ovulation and oocyte maturation. Canine serum progesterone concentrations during both proestrus and estrus were analyzed by RIA and ECLI to determine the ovulation day. Although both methods detected similar progesterone levels before ovulation, the mean progesterone concentration determined using ECLI was significantly higher than of RIA three days before ovulation. Following ovulation, oocytes were collected by surgery, and a lower percentage of mature oocytes were observed using ECLI (39%) as compared to RIA (67%) if 4-8ng/ml of progesterone were used for determination of ovulation. A high percentage of mature oocytes was observed using ECLI when 6-15 ng/mL of progesterone was used for ovulation determination. To determine whether ECLI could be used for canine cloning, six canines were selected as oocyte donors, and two puppies were obtained after SCNT and embryo transfer. In conclusion, compared to the traditional RIA method, the ECLI method is a safe and reliable method for canine cloning.
Collapse
|
14
|
Iwata H. Age-associated events in bovine oocytes and possible countermeasures. Reprod Med Biol 2016; 15:155-164. [PMID: 29259432 PMCID: PMC5715852 DOI: 10.1007/s12522-015-0233-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 12/19/2015] [Indexed: 01/31/2023] Open
Abstract
Maternal aging profoundly affects oocyte quality. This has become common knowledge in industrialized countries and extensive studies addressing the causes and possible countermeasures against age-associated deterioration of oocytes suggest that mitochondrial dysfunction is a causal factor in infertility. However, almost all studies addressing age-associated events in oocytes have used mice as an animal model, and the reproductive life of mice is very short, making it difficult to study the gradual decline in fertility observed in humans. In the present review, age-associated changes in the quality and quantity of bovine oocytes and possible countermeasures related to mitochondrial quality control are introduced.
Collapse
Affiliation(s)
- Hisataka Iwata
- Tokyo University of AgricultureFunako 1737243‐034AtsugiKanagawaJapan
| |
Collapse
|
15
|
Jin JI, Ghanem N, Kim SS, Choi BH, Ha AN, Lee KL, Sun DW, Lim HT, Lee JG, Kong IK. Interaction of donor age, parity and repeated recovery of cumulus–oocyte complexes by ovum pick-up on in vitro embryo production and viability after transfer. Livest Sci 2016. [DOI: 10.1016/j.livsci.2016.04.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
16
|
Moussa M, Shu J, Zhang X, Zeng F. Maternal control of oocyte quality in cattle “a review”. Anim Reprod Sci 2015; 155:11-27. [DOI: 10.1016/j.anireprosci.2015.01.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 11/20/2014] [Accepted: 01/15/2015] [Indexed: 02/09/2023]
|
17
|
Developmental competence of different quality bovine oocytes retrieved through ovum pick-up following in vitro maturation and fertilization. Animal 2015; 9:1979-85. [DOI: 10.1017/s1751731115001226] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
|
18
|
Velazquez MA, Kues WA, Niemann H. Biomedical applications of ovarian transvaginal ultrasonography in cattle. Anim Biotechnol 2014; 25:266-93. [PMID: 24813220 DOI: 10.1080/10495398.2013.870075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Ovarian transvaginal ultrasonography (OTU) has been used world-wide for commercial ovum pick-up programs for in vitro embryo production in elite herds, providing an excellent model for the elucidation of factors controlling bovine oocyte developmental competence. Noninvasive sampling and treatment of ovarian structures is easily accomplished with bovine OTU techniques providing a promising system for in vivo delivery of transgenes directly into the ovary. The current review summarizes existing bovine OTU models and provides prospective applications of bovine OTU to undertake research in reproductive topics of biomedical relevance, with special emphasis on the development of in vivo gene transfer strategies.
Collapse
Affiliation(s)
- Miguel A Velazquez
- a Centre for Biological Sciences , University of Southampton, Southampton General Hospital , Southampton , United Kingdom
| | | | | |
Collapse
|
19
|
Breed influences on in vitro development of abattoir-derived bovine oocytes. Acta Vet Scand 2012; 54:36. [PMID: 22682104 PMCID: PMC3502093 DOI: 10.1186/1751-0147-54-36] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 05/17/2012] [Indexed: 11/13/2022] Open
Abstract
Background There is a discrepancy in the reproductive performance between different cattle breeds. Using abattoir-derived ovaries and data base information we studied the effects of breed on in vitro fertilization and early embryo development. Methods The in vitro developmental competence of oocytes from cattle (n = 202) of Swedish Red (SR), Swedish Holstein (SH) and mixed beef breeds was compared, retrospectively tracing donors of abattoir-derived ovaries using a combination of the national animal databases and abattoir information. Age was significantly lower and carcass conformation score was higher in the beef breeds than in the dairy breeds. Cumulus oocyte complexes (n = 1351) were aspirated from abattoir-derived ovaries from animals of known breed (visual inspection confirmed through databases), age (databases), and abattoir information. Oocytes were matured, fertilized (frozen semen from two dairy bulls) and cultured according to conventional protocols. On day 8, blastocysts were graded and the number of nuclei determined. Results Cleavage rate was not different between the breeds but was significantly different between bulls. The percentage of blastocysts on day 8 was significantly higher when the oocyte donor’s breed was beef or SR than SH. There was no significant difference in blastocyst grades or stages between the breeds, but the number of nuclei in day 8 blastocysts was significantly lower in SH compared to the beef. Conclusions The use of abattoir-derived ovaries from animals whose background is traceable can be a valuable tool for research. Using this approach in the present study, oocyte donor breed was seen to affect early embryo development during in vitro embryo production, which may be a contributing factor to the declining fertility in some dairy breeds seen today.
Collapse
|
20
|
Presicce GA, Xu J, Gong G, Moreno JF, Chaubal S, Xue F, Bella A, Senatore EM, Yang X, Tian XC, Du F. Oocyte source and hormonal stimulation for in vitro fertilization using sexed spermatozoa in cattle. Vet Med Int 2010; 2011. [PMID: 20885928 PMCID: PMC2946594 DOI: 10.4061/2011/145626] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 06/11/2010] [Accepted: 07/08/2010] [Indexed: 01/10/2023] Open
Abstract
The aim of this study was to investigate the efficiency of in vitro embryo production in cattle utilizing sexed sperm from two bulls and oocytes recovered by OPU. Twenty donor animals were employed in eight OPU replicates: the first four OPU trials were conducted on animals without hormone treatment, and the last four were run on the same animals, following FSH subcutaneous and intramuscular administration. A higher rate of blastocyst development was recorded in stimulated, as compared to nonstimulated animals, (25.2% versus 12.8%, P = .001). Ocytes derived from slaughterhouse (SH) ovaries were also fertilized with sperm from the same bulls. Overall, non-sexed sperm used with oocytes derived from SH ovaries was significantly more efficient for blastocyst development than was sexed sperm with these same SH derived oocytes and sexed sperm with stimulated donor oocytes (39.8% versus 25.0% and 25.2%, P = .001). In conclusion, the use of sexed sperm with OPU-derived oocytes resulted in a significantly higher blastocyst development when donors were hormonally stimulated; furthermore, the level of efficiency achieved was comparable to that attained when the same sexed sperm was tested on oocytes derived from SH ovaries.
Collapse
Affiliation(s)
- Giorgio A Presicce
- Istituto Superiore di Sanità, Viale Regina Elena, 299, 00161 Rome, Italy
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Efficiency of two timed artificial insemination protocols in Murrah buffaloes managed under a semi-intensive system in the tropics. Trop Anim Health Prod 2010; 42:1149-54. [DOI: 10.1007/s11250-010-9539-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2010] [Indexed: 02/03/2023]
|
22
|
SAMBASIVA RAO B, UMA MAHESH Y, LAKSHMIKANTAN UR, SUMAN K, VENU CHARAN K, SHIVAJI S. Developmental Competence of Oocytes Recovered from Postmortem Ovaries of the Endangered Indian Blackbuck (Antilope cervicapra). J Reprod Dev 2010; 56:623-9. [DOI: 10.1262/jrd.10-059h] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Brahmasani SAMBASIVA RAO
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Yelisetti UMA MAHESH
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Uthanda Raman LAKSHMIKANTAN
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Komjeti SUMAN
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Katari VENU CHARAN
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| | - Sisinthy SHIVAJI
- Laboratory for Conservation of Endangered Species (LaCONES), Centre for Cellular and Molecular Biology Annexe-I (CSIR)
| |
Collapse
|