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Generation of Monogenetic Cattle by Different Techniques of Embryonic Cell and Somatic Cell Cloning – Their Application to Biotechnological, Agricultural, Nutritional, Biomedical and Transgenic Research – A Review. ANNALS OF ANIMAL SCIENCE 2021. [DOI: 10.2478/aoas-2020-0096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract
The development of effective approaches for not only the in vitro maturation (IVM) of heifer/cow oocytes and their extracorporeal fertilization (IVF) but also the non-surgical collection and transfer of bovine embryos has given rise to optimizing comprehensive in vitro embryo production (IVP) technology and improving other assisted reproductive technologies (ART s), such as cattle cloning by embryo bisection, embryonic cell nuclear transfer (ECNT) and somatic cell nuclear transfer (SCNT). The primary goal of the present paper is to demonstrate the progress and achievements in the strategies utilized for embryonic cell cloning and somatic cell cloning in cattle. Moreover, the current article is focused on recognizing and identifying the suitability and reliability of bovine cloning techniques for nutritional biotechnology, agri-food and biopharmaceutical industry, biomedical and transgenic research and for the genetic rescue of endangered or extinct breeds and species of domesticated or wild-living artiodactyl mammals (even-toed ungulates) originating from the family Bovidae.
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Kiefer H, Perrier JP. DNA methylation in bull spermatozoa: evolutionary impacts, interindividual variability, and contribution to the embryo. CANADIAN JOURNAL OF ANIMAL SCIENCE 2020. [DOI: 10.1139/cjas-2019-0071] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The DNA methylome of spermatozoa results from a unique epigenetic reprogramming crucial for chromatin compaction and the protection of the paternal genetic heritage. Although bull semen is widely used for artificial insemination (AI), little is known about the sperm epigenome in cattle. The purpose of this review is to synthetize recent work on the bull sperm methylome in light of the knowledge accumulated in humans and model species. We will address sperm-specific DNA methylation features and their potential evolutionary impacts, with particular emphasis on hypomethylated regions and repetitive elements. We will review recent examples of interindividual variability and intra-individual plasticity of the bull sperm methylome as related to fertility and age, respectively. Finally, we will address paternal methylome reprogramming after fertilization, as well as the mechanisms potentially involved in epigenetic inheritance, and provide some examples of disturbances that alter the dynamics of reprogramming in cattle. Because the selection of AI bulls is closely based on their genotypes, we will also discuss the complex interplay between sequence polymorphism and DNA methylation, which represents both a difficulty in addressing the role of DNA methylation in shaping phenotypes and an opportunity to better understand genome plasticity.
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Affiliation(s)
- Hélène Kiefer
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
| | - Jean-Philippe Perrier
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en-Josas, France
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Dordas-Perpinyà M, Pintart C, Terris H, Normandin L, Bruyas JF. Assessing the fertility of two mares cloned from the same founder animal. Reprod Domest Anim 2019; 55:44-53. [PMID: 31688983 DOI: 10.1111/rda.13584] [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: 07/15/2019] [Revised: 10/16/2019] [Accepted: 10/18/2019] [Indexed: 11/29/2022]
Abstract
Two cloned mares, produced from the same sample of skin fibroblasts, were bred during four breeding seasons from their second year of age, as embryo donors, in exactly the same conditions, using the same stallions for both cloned mares. The aim of this study was to test the embryo donor potential of cloned mares and to compare the results obtained from two cloned mares of the same mare with other embryo donor mares (n = 31-39 per breeding season) at the same stud. For both cloned mares, 19 embryos were recovered by 43 collection attempts (44%) (7/22 for one; 12/21 for the other), 16 (84%) pregnancies (5/7 for one, 11/12 for the other) were obtained at day 14 post-ovulation (D14 ), and 12 (3/7 for one; 9/12 for the other) foals were born. One cloned mare was a less efficient donor mare than the other (p < .05), In control donor mares, 623 embryo collections were performed, with a recovery rate (80%-496/623) significantly higher than for cloned mares. The recovery rate in the subpopulation of 2-5-year-old control donor mares (same age of cloned mares) (89%-127/143) and The recovery rate in the subpopulation of 12 control mares bred with the seven same stallions as clones (55%-17/31), were both higher than for cloned mare (p < .05). The success rate of transfer was not different between embryos produced by cloned mares (84%-16/19) and those produced by control donor mares (79%-392/496). However, the foaling rate per embryo collection was significantly lower for cloned mares (28%-12/43) than for control donor mares (52% - 325/623) (p < .05).
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Affiliation(s)
| | - Cécile Pintart
- Theriogenology Unit, Nantes Veterinary College, Nantes cedex 03, France
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Study on Hematological and Biochemical Characters of Cloned Duroc Pigs and Their Progeny. Animals (Basel) 2019; 9:ani9110912. [PMID: 31684083 PMCID: PMC6912288 DOI: 10.3390/ani9110912] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 10/25/2019] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Cloning is the most promising technique for passing the excellent phenotypes of the best individuals in the population. Here we studied the effects of cloning on Duroc pig, which is the most popular sire used in pig production due to its good growth and meat quality. Understanding the changes of cloned Duroc pigs and their progenies is of great importance for animal breeding and public acceptance. The results of this study suggested that there were no difference in blood parameters between the cloned Duroc and the conventionally bred Duroc and their progenies. Abstract To increase public understanding in cloned animals produced by somatic cell nuclear transfer technology, our previous study investigated the carcass trait and meat quality of the clones (paper accepted), and this study we further evaluate differences by investigating the blood parameters in cloned pigs and their progeny. We collected blood samples from the clones and conventionally bred non-clones and their progeny, and investigated their hematological and blood biochemical characters. Our results supported the hypothesis that there was no significant difference between clones and non-clones, or their progeny. Taken together, the data demonstrated that the clones or their progeny were similar with their controls in terms of blood parameters, although there were still other kinds of disorders, such as abnormal DNA methylation or histone modifications that needs further investigation. The data in this study agreed that cloning technique could be used to preserve and enlarge the genetics of the superior boars in pig breeding industry, especially in facing of the deadly threat of African Swine fever happened in China.
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Escudeiro A, Ferreira D, Mendes-da-Silva A, Heslop-Harrison JS, Adega F, Chaves R. Bovine satellite DNAs – a history of the evolution of complexity and its impact in the Bovidae family. THE EUROPEAN ZOOLOGICAL JOURNAL 2019. [DOI: 10.1080/24750263.2018.1558294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Affiliation(s)
- A. Escudeiro
- Department of Genetics and Biotechnology (DGB), CAG – Laboratory of Cytogenomics and Animal Genomics (CAG), University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
- Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisboa, Lisboa, Portugal
| | - D. Ferreira
- Department of Genetics and Biotechnology (DGB), CAG – Laboratory of Cytogenomics and Animal Genomics (CAG), University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
- Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisboa, Lisboa, Portugal
| | - A. Mendes-da-Silva
- Department of Genetics and Biotechnology (DGB), CAG – Laboratory of Cytogenomics and Animal Genomics (CAG), University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
- Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisboa, Lisboa, Portugal
| | | | - F. Adega
- Department of Genetics and Biotechnology (DGB), CAG – Laboratory of Cytogenomics and Animal Genomics (CAG), University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
- Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisboa, Lisboa, Portugal
| | - R. Chaves
- Department of Genetics and Biotechnology (DGB), CAG – Laboratory of Cytogenomics and Animal Genomics (CAG), University of Trás-os-Montes e Alto Douro (UTAD), Vila Real, Portugal
- Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisboa, Lisboa, Portugal
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Silveira MM, Salgado Bayão HX, Dos Santos Mendonça A, Borges NA, Vargas LN, Caetano AR, Rumpf R, Franco MM. DNA methylation profile at a satellite region is associated with aberrant placentation in cloned calves. Placenta 2018; 70:25-33. [PMID: 30316323 DOI: 10.1016/j.placenta.2018.08.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/18/2018] [Accepted: 08/28/2018] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Cloning via somatic cell nuclear transfer (SCNT) has been associated with a variety of pathologies, primarily in the placenta, and these alterations may be associated with aberrant epigenetic reprogramming of the donor cell genome. We tested the hypothesis that DNA methylation patterns are not appropriately established after nuclear transfer and that those altered patterns are associated with specific aberrant phenotypes. METHODS We compared global and specific placental DNA methylation patterns between aberrant and healthy SCNT-produced calves. Foetal cotyledon samples of ten SCNT pregnancies were collected. Global DNA methylation and hydroxymethylation levels were measured using an ELISA-based assay and specific DNA methylation of satellite I, and α-satellite repeat elements were measured using bisulfite PCR. RESULTS Our analysis revealed that the SCNT-produced calves, which showed aberrant phenotypes, exhibited a reduced methylation pattern of the satellite I region compared to that of healthy calves. In contrast, global methylation and hydroxymethylation analyses showed higher levels for both cytosine modifications in SCNT-produced female calves with aberrant phenotypes. The satellite I region showed most of the sequences to be hypermethylated in live cloned calves compared with those in deceased calves. DISCUSSION Our results suggest that this satellite I region could be used as an epigenetic biomarker for predicting offspring viability. Studies evaluating DNA methylation patterns of this satellite region in the donor cell genome or embryo biopsies could shed light on how to improve the efficiency of SCNT cloning.
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Affiliation(s)
- Márcia Marques Silveira
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil; Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
| | | | - Anelise Dos Santos Mendonça
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil; Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
| | - Naiara Araújo Borges
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil; Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
| | - Luna Nascimento Vargas
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil; Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
| | | | - Rodolfo Rumpf
- GENEAL Genetics and Animal Biotechnology, Uberaba, Minas Gerais, Brazil.
| | - Maurício Machaim Franco
- Laboratory of Animal Reproduction, Embrapa Genetic Resources and Biotechnology, Brasília, Distrito Federal, Brazil; Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Minas Gerais, Brazil.
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Yamanaka KI, Yamashita K, Khatun H, Wada Y, Tatemoto H, Sakatani M, Takenouchi N, Takahashi M, Watanabe S. Normal DNA methylation status in sperm from a somatic cell cloned bull and their fertilized embryos. Anim Sci J 2018; 89:1406-1414. [DOI: 10.1111/asj.13086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/26/2018] [Indexed: 11/27/2022]
Affiliation(s)
- Ken-Ichi Yamanaka
- Faculty of Agriculture; Saga University; Saga Japan
- The United Graduate School of Agricultural Sciences; Kagoshima University; Kagoshima Japan
| | | | - Hafiza Khatun
- Faculty of Agriculture; Saga University; Saga Japan
- The United Graduate School of Agricultural Sciences; Kagoshima University; Kagoshima Japan
| | - Yasuhiko Wada
- Faculty of Agriculture; Saga University; Saga Japan
- The United Graduate School of Agricultural Sciences; Kagoshima University; Kagoshima Japan
| | - Hideki Tatemoto
- The United Graduate School of Agricultural Sciences; Kagoshima University; Kagoshima Japan
- Faculty of Agriculture; University of Ryukyus; Okinawa Japan
| | - Miki Sakatani
- Kyushu Okinawa Agricultural Research Center; NARO; Kosi Japan
| | | | | | - Shinya Watanabe
- Institute of Livestock and Grassland Science; NARO; Tsukuba Japan
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Perrier JP, Sellem E, Prézelin A, Gasselin M, Jouneau L, Piumi F, Al Adhami H, Weber M, Fritz S, Boichard D, Le Danvic C, Schibler L, Jammes H, Kiefer H. A multi-scale analysis of bull sperm methylome revealed both species peculiarities and conserved tissue-specific features. BMC Genomics 2018; 19:404. [PMID: 29843609 PMCID: PMC5975405 DOI: 10.1186/s12864-018-4764-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 05/07/2018] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Spermatozoa have a remarkable epigenome in line with their degree of specialization, their unique nature and different requirements for successful fertilization. Accordingly, perturbations in the establishment of DNA methylation patterns during male germ cell differentiation have been associated with infertility in several species. While bull semen is widely used in artificial insemination, the literature describing DNA methylation in bull spermatozoa is still scarce. The purpose of this study was therefore to characterize the bull sperm methylome relative to both bovine somatic cells and the sperm of other mammals through a multiscale analysis. RESULTS The quantification of DNA methylation at CCGG sites using luminometric methylation assay (LUMA) highlighted the undermethylation of bull sperm compared to the sperm of rams, stallions, mice, goats and men. Total blood cells displayed a similarly high level of methylation in bulls and rams, suggesting that undermethylation of the bovine genome was specific to sperm. Annotation of CCGG sites in different species revealed no striking bias in the distribution of genome features targeted by LUMA that could explain undermethylation of bull sperm. To map DNA methylation at a genome-wide scale, bull sperm was compared with bovine liver, fibroblasts and monocytes using reduced representation bisulfite sequencing (RRBS) and immunoprecipitation of methylated DNA followed by microarray hybridization (MeDIP-chip). These two methods exhibited differences in terms of genome coverage, and consistently, two independent sets of sequences differentially methylated in sperm and somatic cells were identified for RRBS and MeDIP-chip. Remarkably, in the two sets most of the differentially methylated sequences were hypomethylated in sperm. In agreement with previous studies in other species, the sequences that were specifically hypomethylated in bull sperm targeted processes relevant to the germline differentiation program (piRNA metabolism, meiosis, spermatogenesis) and sperm functions (cell adhesion, fertilization), as well as satellites and rDNA repeats. CONCLUSIONS These results highlight the undermethylation of bull spermatozoa when compared with both bovine somatic cells and the sperm of other mammals, and raise questions regarding the dynamics of DNA methylation in bovine male germline. Whether sperm undermethylation has potential interactions with structural variation in the cattle genome may deserve further attention.
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Affiliation(s)
- Jean-Philippe Perrier
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- Present Address: Laboratory of Animal Reproduction, Department of Biological Sciences, Faculty of Science and Engineering, University of Limerick, Limerick, Ireland
| | - Eli Sellem
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- ALLICE, 149 rue de Bercy, 75012 Paris, France
| | - Audrey Prézelin
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
| | - Maxime Gasselin
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
| | - Luc Jouneau
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
| | - François Piumi
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- Present Address: Institut Curie, PSL Research University, CNRS, UMR3664, 75005 Paris, France
- Present Address: Sorbonne Universités, UPMC Univ Paris 06, CNRS, UMR3664, 75005 Paris, France
| | - Hala Al Adhami
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
- CNRS, Université de Strasbourg, UMR7242 Biotechnologie et signalisation cellulaire, 300 bd Sébastien Brant, 67412 Illkirch cedex, France
| | - Michaël Weber
- CNRS, Université de Strasbourg, UMR7242 Biotechnologie et signalisation cellulaire, 300 bd Sébastien Brant, 67412 Illkirch cedex, France
| | - Sébastien Fritz
- ALLICE, 149 rue de Bercy, 75012 Paris, France
- UMR GABI, INRA, AgroParisTech, Université Paris Saclay, 78350 Jouy en Josas, France
| | - Didier Boichard
- UMR GABI, INRA, AgroParisTech, Université Paris Saclay, 78350 Jouy en Josas, France
| | - Chrystelle Le Danvic
- ALLICE, 149 rue de Bercy, 75012 Paris, France
- UMR CNRS/USTL 8576, UGSF, Villeneuve D’Ascq, France
| | | | - Hélène Jammes
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
| | - Hélène Kiefer
- UMR BDR, INRA, ENVA, Université Paris Saclay, 78350 Jouy en Josas, France
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Bomfim MM, Andrade GM, Del Collado M, Sangalli JR, Fontes PK, Nogueira MFG, Meirelles FV, da Silveira JC, Perecin F. Antioxidant responses and deregulation of epigenetic writers and erasers link oxidative stress and DNA methylation in bovine blastocysts. Mol Reprod Dev 2017; 84:1296-1305. [PMID: 29106766 DOI: 10.1002/mrd.22929] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Accepted: 10/30/2017] [Indexed: 12/31/2022]
Abstract
Early mammalian embryos derived from in vitro fertilization are exposed to conditions distinct from the native oviduct-uterine environment, including atmospheric oxygen that promotes cellular oxidative stress and alters gene expression. High oxygen partial pressure during embryo development is associated with low pregnancy rates and increased embryonic apoptosis. We investigated how bovine embryos responded to high (20%) or low (5%) oxygen partial pressure during in vitro culture, evaluating levels of reactive oxygen species (ROS) as well as changes in the expression of oxidative stress- and epigenetic-related transcripts and miRNAs in blastocysts. Additionally, we determined the global DNA methylation levels in the resulting embryos. Our data indicated that bovine blastocysts produced in vitro under high oxygen partial pressure possessed elevated ROS abundance and exhibited increased expression of CAT, GLRX2, KEAP1, NFR2, PRDX1, PRDX3, SOD1, TXN, and TXNRD1, versus reduced levels of the oxidative stress-related bta-miR-210. These stressed embryos also presented altered expression of the epigenetic-associated transcripts DNMT3A, H2AFZ, H3F3B, HDAC2, MORF4L2, REST, and PAF1. In addition, we demonstrated that embryos cultured under high oxygen partial pressure have increased global DNA methylation, suggesting that DNA hypermethylation is mediated by the deregulation of epigenetic-related enzymes due to oxidative stress.
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Affiliation(s)
- Monalisa M Bomfim
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Gabriella M Andrade
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Maite Del Collado
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Juliano R Sangalli
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Patrícia K Fontes
- Department of Pharmacology, Institute of Biosciences, São Paulo State University, Botucatu, SP, Brazil
| | - Marcelo F G Nogueira
- Department of Biological Sciences, School of Science, Humanities and Languages, São Paulo State University, Assis, SP, Brazil
| | - Flávio V Meirelles
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Juliano C da Silveira
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
| | - Felipe Perecin
- Faculty of Animal Science and Food Engineering, Department of Veterinary Medicine, University of São Paulo, Pirassununga, SP, Brazil
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Kaneda M, Watanabe S, Akagi S, Inaba Y, Geshi M, Nagai T. Proper reprogramming of imprinted and non-imprinted genes in cloned cattle gametogenesis. Anim Sci J 2017; 88:1678-1685. [PMID: 28574624 DOI: 10.1111/asj.12846] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 04/05/2017] [Indexed: 12/18/2022]
Abstract
Epigenetic abnormalities in cloned animals are caused by incomplete reprogramming of the donor nucleus during the nuclear transfer step (first reprogramming). However, during the second reprogramming step that occurs only in the germline cells, epigenetic errors not corrected during the first step are repaired. Consequently, epigenetic abnormalities in the somatic cells of cloned animals should be erased in their spermatozoa or oocytes. This is supported by the fact that offspring from cloned animals do not exhibit defects at birth or during postnatal development. To test this hypothesis in cloned cattle, we compared the DNA methylation level of two imprinted genes (H19 and PEG3) and three non-imprinted genes (XIST, OCT4 and NANOG) and two repetitive elements (Satellite I and Satellite II) in blood and sperm DNAs from cloned and non-cloned bulls. We found no differences between cloned and non-cloned bulls. We also analyzed the DNA methylation levels of four repetitive elements (Satellite I, Satellite II, Alpha-satellite and Art2) in oocytes recovered from cloned and non-cloned cows. Again, no significant differences were observed between clones and non-clones. These results suggested that imprinted and non-imprinted genes and repetitive elements were properly reprogramed during gametogenesis in cloned cattle; therefore, they contributed to the soundness of cloned cattle offspring.
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Affiliation(s)
- Masahiro Kaneda
- Division of Animal Life Science, Tokyo University of Agriculture and Technology, Fuchu, Japan
| | - Shinya Watanabe
- Institute of Livestock and Grassland Science, NARO, Tsukuba, Japan
| | - Satoshi Akagi
- Institute of Livestock and Grassland Science, NARO, Tsukuba, Japan
| | - Yasushi Inaba
- National Livestock Breeding Center Tottori Station, Tottori, Japan
| | - Masaya Geshi
- Institute of Agrobiological Sciences, NARO, Tsukuba, Japan
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Zou C, Fu Y, Li C, Liu H, Li G, Li J, Zhang H, Wu Y, Li C. Genome-wide gene expression and DNA methylation differences in abnormally cloned and normally natural mating piglets. Anim Genet 2016; 47:436-50. [DOI: 10.1111/age.12436] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/18/2016] [Indexed: 01/24/2023]
Affiliation(s)
- C. Zou
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - Y. Fu
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - C. Li
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - H. Liu
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - G. Li
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - J. Li
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - H. Zhang
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - Y. Wu
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
| | - C. Li
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education; College of Animal Science and Technology; Huazhong Agricultural University; Wuhan 430070 People's Republic of China
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12
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Beaujean N. Epigenetics, embryo quality and developmental potential. Reprod Fertil Dev 2015; 27:53-62. [DOI: 10.1071/rd14309] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
It is very important for embryologists to understand how parental inherited genomes are reprogrammed after fertilisation in order to obtain good-quality embryos that will sustain further development. In mammals, it is now well established that important epigenetic modifications occur after fertilisation. Although gametes carry special epigenetic signatures, they should attain embryo-specific signatures, some of which are crucial for the production of healthy embryos. Indeed, it appears that proper establishment of different epigenetic modifications and subsequent scaffolding of the chromatin are crucial steps during the first cleavages. This ‘reprogramming’ is promoted by the intimate contact between the parental inherited genomes and the oocyte cytoplasm after fusion of the gametes. This review introduces two main epigenetic players, namely histone post-translational modifications and DNA methylation, and highlights their importance during early embryonic development.
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13
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Li G, Jia Q, Zhao J, Li X, Yu M, Samuel MS, Zhao S, Prather RS, Li C. Dysregulation of genome-wide gene expression and DNA methylation in abnormal cloned piglets. BMC Genomics 2014; 15:811. [PMID: 25253444 PMCID: PMC4189204 DOI: 10.1186/1471-2164-15-811] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 09/19/2014] [Indexed: 12/19/2022] Open
Abstract
Background Epigenetic modifications (especially altered DNA methylation) resulting in altered gene expression may be one reason for development failure or abnormalities in cloned animals, but the underlying mechanism of the abnormal phenotype in cloned piglets remains unknown. Some cloned piglets in our study showed abnormal phenotypes such as large tongue (longer and thicker), weak muscles, and exomphalos. Here we conducted DNA methylation (DNAm) immunoprecipitation and high throughput sequencing (MeDIP-seq) and RNA sequencing (RNA-seq) of muscle tissues of cloned piglets to investigate the relationship of abnormal DNAm with gene dysregulation and the unusual phenotypes in cloned piglets. Results Analysis of the methylomes revealed that abnormal cloned piglets suffered more hypomethylation than hypermethylation compared to the normal cloned piglets, although the DNAm level in the CpG Island was higher in the abnormal cloned piglets. Some repetitive elements, such as SINE/tRNA-Glu Satellite/centr also showed differences. We detected 1,711 differentially expressed genes (DEGs) between the two groups, of which 243 genes also changed methylation level in the abnormal cloned piglets. The altered DNA methylation mainly affected the low and silently expressed genes. There were differences in both pathways and genes, such as the MAPK signalling pathway, the hypertrophic cardiomyopathy pathway, and the imprinted gene PLAGL1; all of which may play important roles in development of the abnormal phenotype. Conclusions The abnormal cloned piglets showed substantial changes both in the DNAm and the gene expression. Our data may provide new insights into understanding the molecular mechanisms of the reprogramming of genetic information in cloned animals. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-811) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Changchun Li
- Key Lab of Agriculture Animal Genetics, Breeding, and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
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Srirattana K, Ketudat-Cairns M, Nagai T, Kaneda M, Parnpai R. Effects of trichostatin A on In vitro development and DNA methylation level of the satellite I region of swamp buffalo (Bubalus bubalis) cloned embryos. J Reprod Dev 2014; 60:336-41. [PMID: 24909601 PMCID: PMC4219989 DOI: 10.1262/jrd.2013-116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Trichostatin A (TSA), a histone deacetylase inhibitor, has been widely used to improve the cloning efficiency in several
species. This brings our attention to investigation of the effects of TSA on developmental potential of swamp buffalo cloned
embryos. Swamp buffalo cloned embryos were produced by electrical pulse fusion of male swamp buffalo fibroblasts with swamp
buffalo enucleated oocytes. After fusion, reconstructed oocytes were treated with 0, 25 or 50 nM TSA for 10 h. The results
showed that there was no significant difference in the rates of fusion (82–85%), cleavage (79–84%) and development to the
8-cell stage (59–65%) among treatment groups. The highest developmental rates to the morula and blastocyst stages of embryos
were found in the 25 nM TSA-treated group (42.7 and 30.1%, respectively). We also analyzed the DNA methylation level in the
satellite I region of donor cells and in in vitro fertilized (IVF) and cloned embryos using the bisulfite
DNA sequencing method. The results indicated that the DNA methylation levels in cloned embryos were significantly higher than
those of IVF embryos but approximately similar to those of donor cells. Moreover, there was no significant difference in the
methylation level among TSA-treated and untreated cloned embryos. Thus, TSA treatments at 25 nM for 10 h could enhance the
in vitro developmental potential of swamp buffalo cloned embryos, but no beneficial effect on the DNA
methylation level was observed.
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Affiliation(s)
- Kanokwan Srirattana
- Embryo Technology and Stem Cell Research Center and School of Biotechnology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
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15
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Effects of different oocyte retrieval and in vitro maturation systems on bovine embryo development and quality. ZYGOTE 2014; 23:367-77. [DOI: 10.1017/s0967199413000658] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
SummaryCyclic adenosine monophosphate (cAMP) modulators have been used to avoid spontaneous oocyte maturation and concomitantly improve oocyte developmental competence. The current work evaluated the effects of the addition of cAMP modulators forskolin, 3-isobutyl-1-methylxanthine (IBMX) and cilostamide during in vitro maturation on the quality and yields of blastocysts. The following experimental groups were evaluated: (i) slicing or (ii) aspiration and maturation in tissue culture medium (TCM)199 for 24 h (TCM24slicing and TCM24aspiration, respectively), (iii) aspiration and maturation in the presence of cAMP modulators for 30 h (cAMP30aspiration) and in vivo-produced blastocysts. In vitro-matured oocytes were fertilized and presumptive zygotes were cultured in vitro to assess embryo development. Cleavage, blastocyst formation, blastocyst cell number, mRNA abundance of selected genes and global methylation profiles were evaluated. Blastocyst rate/zygotes for the TCM24aspiration protocol was improved (32.2 ± 2.1%) compared with TCM24slicing and cAMP30aspiration (23.4 ± 1.2% and 23.3 ± 2.0%, respectively, P<0.05). No statistical differences were found for blastocyst cell numbers. The mRNA expression for the EGR1 gene was down-regulated eight-fold in blastocysts that had been produced in vitro compared with their in vivo counterparts. Gene expression profiles for IGF2R, SLC2A8, COX2, DNMT3B and PCK2 did not differ among experimental groups. Bovine testis satellite I and Bos taurus alpha satellite methylation profiles from cAMP30aspiration protocol-derived blastocysts were similar to patterns that were observed in their in vivo equivalents (P > 0.05), while those from the other groups were significantly elevated. It is concluded that retrieval, collection systems and addition of cAMP modulators can affect oocyte developmental competence, which is reflected not only in blastocyst rates but also in global DNA methylation and gene expression patterns.
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Watanabe S. Effect of calf death loss on cloned cattle herd derived from somatic cell nuclear transfer: clones with congenital defects would be removed by the death loss. Anim Sci J 2013; 84:631-8. [PMID: 23829575 DOI: 10.1111/asj.12087] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 04/03/2013] [Indexed: 12/11/2022]
Abstract
To increase public understanding on cloned cattle derived from somatic cell nuclear transfer (SCNT), the present review describes the effect of calf death loss on an SCNT cattle herd. The incidence of death loss in SCNT cattle surviving more than 200 days reached the same level as that in conventionally bred cattle. This process could be considered as removal of SCNT cattle with congenital defects caused by calf death loss. As a result of comparative studies of SCNT cattle and conventionally bred cattle, the substantial equivalences in animal health status, milk and meat productive performance have been confirmed. Both sexes of SCNT cattle surviving to adulthood were fertile and their reproductive performance, including efficiency of progeny production, was the same as that in conventionally bred cattle. The presence of substantial equivalence between their progeny and conventionally bred cattle also existed. Despite these scientific findings, the commercial use of food products derived from SCNT cattle and their progeny has not been allowed by governments for reasons including the lack of public acceptance of these products and the low efficiency of animal SCNT. To overcome this situation, communication of the low risk of SCNT technology and research to improve SCNT efficiency are required.
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Affiliation(s)
- Shinya Watanabe
- NARO Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
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de Montera B, Fournier E, Shojaei Saadi HA, Gagné D, Laflamme I, Blondin P, Sirard MA, Robert C. Combined methylation mapping of 5mC and 5hmC during early embryonic stages in bovine. BMC Genomics 2013; 14:406. [PMID: 23773395 PMCID: PMC3689598 DOI: 10.1186/1471-2164-14-406] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 05/31/2013] [Indexed: 11/24/2022] Open
Abstract
Background It was recently established that changes in methylation during development are dynamic and involve both methylation and demethylation processes. Yet, which genomic sites are changing and what are the contributions of methylation (5mC) and hydroxymethylation (5hmC) to this epigenetic remodeling is still unknown. When studying early development, options for methylation profiling are limited by the unavailability of sufficient DNA material from these scarce samples and limitations are aggravated in non-model species due to the lack of technological platforms. We therefore sought to obtain a representation of differentially 5mC or 5hmC loci during bovine early embryo stages through the use of three complementary methods, based on selective methyl-sensitive restriction and enrichment by ligation-mediated PCR or on subtractive hybridization. Using these strategies, libraries of putative methylation and hydroxymethylated sites were generated from Day-7 and Day-12 bovine embryos. Results Over 1.2 million sequencing reads were analyzed, resulting in 151,501 contigs, of which 69,136 were uniquely positioned on the genome. A total of 101,461 putative methylated sites were identified. The output of the three methods differed in genomic coverage as well as in the nature of the identified sites. The classical MspI/HpaII combination of restriction enzymes targeted CpG islands whereas the other methods covered 5mC and 5hmC sites outside of these regions. Data analysis suggests a transition of these methylation marks between Day-7 and Day-12 embryos in specific classes of repeat-containing elements. Conclusions Our combined strategy offers a genomic map of the distribution of cytosine methylation/hydroxymethylation during early bovine embryo development. These results support the hypothesis of a regulatory phase of hypomethylation in repeat sequences during early embryogenesis.
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Affiliation(s)
- Béatrice de Montera
- Centre de Recherche en Biologie de la Reproduction, Institut des Nutraceutiques et des Aliments Fonctionnels, Université Laval, Québec, QC, G1V 0A6, Canada
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Couldrey C, Wells DN. DNA methylation at a bovine alpha satellite I repeat CpG site during development following fertilization and somatic cell nuclear transfer. PLoS One 2013; 8:e55153. [PMID: 23383311 PMCID: PMC3562336 DOI: 10.1371/journal.pone.0055153] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 12/20/2012] [Indexed: 11/18/2022] Open
Abstract
Incomplete epigenetic reprogramming is postulated to contribute to the low developmental success following somatic cell nuclear transfer (SCNT). Here, we describe the epigenetic reprogramming of DNA methylation at an alpha satellite I CpG site (αsatI-5) during development of cattle generated either by artificial insemination (AI) or in vitro fertilization (IVF) and SCNT. Quantitative methylation analysis identified that SCNT donor cells were highly methylated at αsatI-5 and resulting SCNT blastocysts showed significantly more methylation than IVF blastocysts. At implantation, no difference in methylation was observed between SCNT and AI in trophoblast tissue at αsatI-5, however, SCNT embryos were significantly hyper-methylated compared to AI controls at this time point. Following implantation, DNA methylation at αsatI-5 decreased in AI but not SCNT placental tissues. In contrast to placenta, the proportion of methylation at αsatI-5 remained high in adrenal, kidney and muscle tissues during development. Differences in the average proportion of methylation were smaller in somatic tissues than placental tissues but, on average, SCNT somatic tissues were hyper-methylated at αsatI-5. Although sperm from all bulls was less methylated than somatic tissues at αsatI-5, on average this site remained hyper-methylated in sperm from cloned bulls compared with control bulls. This developmental time course confirms that epigenetic reprogramming does occur, at least to some extent, following SCNT. However, the elevated methylation levels observed in SCNT blastocysts and cellular derivatives implies that there is either insufficient time or abundance of appropriate reprogramming factors in oocytes to ensure complete reprogramming. Incomplete reprogramming at this CpG site may be a contributing factor to low SCNT success rates, but more likely represents the tip of the iceberg in terms of incompletely reprogramming. Until protocols ensure the epigenetic signature of a differentiated somatic cell is reset to a state resembling totipotency, the efficiency of SCNT is likely to remain low.
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Affiliation(s)
- Christine Couldrey
- Animal Productivity, AgResearch Ruakura Research Centre, Hamilton, New Zealand.
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Akagi S, Geshi M, Nagai T. Recent progress in bovine somatic cell nuclear transfer. Anim Sci J 2013; 84:191-9. [PMID: 23480698 DOI: 10.1111/asj.12035] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 11/02/2012] [Indexed: 11/30/2022]
Abstract
Bovine somatic cell nuclear transfer (SCNT) embryos can develop to the blastocyst stage at a rate similar to that of embryos produced by in vitro fertilization. However, the full-term developmental rate of SCNT embryos is very low, owing to the high embryonic and fetal losses after embryo transfer. In addition, increased birth weight and postnatal mortality are observed at high rates in cloned calves. The low efficiency of SCNT is probably attributed to incomplete reprogramming of the donor nucleus and most of the developmental problems of clones are thought to be caused by epigenetic defects. Applications of SCNT will depend on improvement in the efficiency of production of healthy cloned calves. In this review, we discuss problems and recent progress in bovine SCNT.
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Affiliation(s)
- Satoshi Akagi
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Tsukuba, Japan.
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