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Powell R, Bubenshchikova E, Fukuyo Y, Hsu C, Lakiza O, Nomura H, Renfrew E, Garrity D, Obara T. Wtip is required for proepicardial organ specification and cardiac left/right asymmetry in zebrafish. Mol Med Rep 2016; 14:2665-78. [PMID: 27484451 PMCID: PMC4991684 DOI: 10.3892/mmr.2016.5550] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2016] [Accepted: 06/02/2016] [Indexed: 01/20/2023] Open
Abstract
Wilm's tumor 1 interacting protein (Wtip) was identified as an interacting partner of Wilm's tumor protein (WT1) in a yeast two-hybrid screen. WT1 is expressed in the proepicardial organ (PE) of the heart, and mouse and zebrafish wt1 knockout models appear to lack the PE. Wtip's role in the heart remains unexplored. In the present study, we demonstrate that wtip expression is identical in wt1a-, tcf21-, and tbx18-positive PE cells, and that Wtip protein localizes to the basal body of PE cells. We present the first genetic evidence that Wtip signaling in conjunction with WT1 is essential for PE specification in the zebrafish heart. By overexpressing wtip mRNA, we observed ectopic expression of PE markers in the cardiac and pharyngeal arch regions. Furthermore, wtip knockdown embryos showed perturbed cardiac looping and lacked the atrioventricular (AV) boundary. However, the chamber-specific markers amhc and vmhc were unaffected. Interestingly, knockdown of wtip disrupts early left-right (LR) asymmetry. Our studies uncover new roles for Wtip regulating PE cell specification and early LR asymmetry, and suggest that the PE may exert non-autonomous effects on heart looping and AV morphogenesis. The presence of cilia in the PE, and localization of Wtip in the basal body of ciliated cells, raises the possibility of cilia-mediated PE signaling in the embryonic heart.
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Affiliation(s)
- Rebecca Powell
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
| | - Ekaterina Bubenshchikova
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
| | - Yayoi Fukuyo
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
| | - Chaonan Hsu
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
| | - Olga Lakiza
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
| | - Hiroki Nomura
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
| | - Erin Renfrew
- Department of Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Deborah Garrity
- Department of Biology, Colorado State University, Fort Collins, CO 80523, USA
| | - Tomoko Obara
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma, OK 73104, USA
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Fukuyo Y, Nakamura T, Bubenshchikova E, Powell R, Tsuji T, Janknecht R, Obara T. Nephrin and Podocin functions are highly conserved between the zebrafish pronephros and mammalian metanephros. Mol Med Rep 2013; 9:457-65. [PMID: 24337247 PMCID: PMC3896505 DOI: 10.3892/mmr.2013.1844] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 11/22/2013] [Indexed: 01/28/2023] Open
Abstract
The slit diaphragm (SD) is a highly specialized intercellular junction between podocyte foot processes and is crucial in the formation of the filtration barrier in the renal glomeruli. Zebrafish Nephrin and Podocin are important in the formation of the podocyte SD and mutations in NEPHRIN and PODOCIN genes cause human nephrotic syndrome. In the present study, the zebrafish Podocin protein was observed to be predominantly localized in the pronephric glomerular podocytes, as previously reported for Nephrin. To understand the function of Podocin and Nephrin in zebrafish, splice-blocking morpholino antisense oligonucleotides were used. Knockdown of Podocin or Nephrin by this method induced pronephric glomerular hypoplasia with pericardial edema. Human NEPHRIN and PODOCIN mRNA rescued this glomerular phenotype, however, the efficacy of the rescues was greatly reduced when mRNA-encoding human disease-causing NEPHRIN-R1109X and PODOCIN-R138Q were used. Furthermore, an association between zebrafish Nephrin and Podocin proteins was observed. Notably, Podocin-R150Q, corresponding to human PODOCIN-R138Q, markedly interacted with NEPHRIN compared with wild-type PODOCIN, suggesting that this strong binding capacity of mutated PODOCIN impairs the transport of NEPHRIN and PODOCIN out of the endoplasmic reticulum. The results suggest that the functions of Nephrin and Podocin are highly conserved between the zebrafish pronephros and mammalian metanephros. Accordingly, the zebrafish pronephros may provide a useful tool for analyzing disease-causing gene mutations in human kidney disorders.
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Affiliation(s)
- Yayoi Fukuyo
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Tomomi Nakamura
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Ekaterina Bubenshchikova
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Rebecca Powell
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Takashi Tsuji
- Department of Biological Science and Technology, Graduate School of Industrial Science and Technology, Tokyo University of Science, Noda, Chiba 278‑8510, Japan
| | - Ralf Janknecht
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Tomoko Obara
- Department of Cell Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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Bubenshchikova E, Kaftanovskaya E, Adachi T, Hashimoto H, Kinoshita M, Wakamatsu Y. A protocol for adult somatic cell nuclear transfer in medaka fish (Oryzias latipes) with a high rate of viable clone formation. Cell Reprogram 2013; 15:520-30. [PMID: 24219575 DOI: 10.1089/cell.2013.0004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Previously, we successfully generated fully grown, cloned medaka (the Japanese rice fish, Oryzias latipes) using donor nuclei from primary culture cells of adult caudal fin tissue and nonenucleated recipient eggs that were heat shock-treated to induce diploidization of the nuclei. However, the mechanism of clone formation using this method is unknown, and the rate of adult clone formation is not high enough for studies in basic and applied sciences. To gain insight into the mechanism and increase the success rate of this method of clone formation, we tested two distinct nuclear transfer protocols. In one protocol, the timing of transfer of donor nuclei was changed, and in the other, the size of the donor cells was changed; each protocol was based on our original methodology. Ultimately, we obtained an unexpectedly high rate of adult clone formation using the protocol that differed with respect to the timing of donor nuclei transfer. Specifically, 17% of the transplants that developed to the blastula stage ultimately developed into adult clones. The success rate with this method was 13 times higher than that obtained using the original method. Analyses focusing on the reasons for this high success rate of clone formation will help to elucidate the mechanism of clone formation that occurs with this method.
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Affiliation(s)
- Ekaterina Bubenshchikova
- 1 Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University , Nagoya, 464-8601, Japan
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Bubenshchikova E, Ichimura K, Fukuyo Y, Powell R, Hsu C, Morrical SO, Sedor JR, Sakai T, Obara T. Wtip and Vangl2 are required for mitotic spindle orientation and cloaca morphogenesis. Biol Open 2012; 1:588-96. [PMID: 23213452 PMCID: PMC3509438 DOI: 10.1242/bio.20121016] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Defects in cilia and basal bodies function are linked to ciliopathies, which result in kidney cyst formation. Recently, cell division defects have been observed in cystic kidneys, but the underlying mechanisms of such defects remain unclear. Wtip is an LIM domain protein of the Ajuba/Zyxin family, but its role in ciliogenesis during embryonic development has not been previously described. We report Wtip is enriched in the basal body and knockdown of wtip leads to pronephric cyst formation, cloaca malformation, hydrocephalus, body curvature, and pericardial edema. We additionally show that wtip knockdown embryos display segment-specific defects in the pronephros: mitotic spindle orientation defects are observed only in the anterior and middle pronephros; cloaca malformation is accompanied by a reduced number of ciliated cells; and ciliated cells lack the striated rootlet that originates from basal bodies, which results in a lack of cilia motility. Our data suggest that loss of Wtip function phenocopies Vangl2 loss of function, a core planar cell polarity (PCP) protein located in the basal body protein. Furthermore, we demonstrate that wtip and vangl2 interact genetically. Taken together, our results indicate that in zebrafish, Wtip is required for mitotic spindle orientation in the anterior and middle of the pronephros, cloaca morphogenesis, and PCP, which may underlie the molecular etiology of ciliopathies.
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Affiliation(s)
- Ekaterina Bubenshchikova
- Department of Cell Biology, University of Oklahoma Health Science Center , Oklahoma City, OK 73104 , USA ; Department of Medicine and Rammelkamp Center for Education and Research, MetroHealth Medical Center, Case Western Reserve University School of Medicine , Cleveland, OH 44109 , USA
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Hattori M, Hashimoto H, Bubenshchikova E, Wakamatsu Y. Nuclear transfer of embryonic cell nuclei to non-enucleated eggs in zebrafish, Danio rerio. Int J Biol Sci 2011; 7:460-8. [PMID: 21547063 PMCID: PMC3088288 DOI: 10.7150/ijbs.7.460] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Accepted: 04/10/2011] [Indexed: 12/01/2022] Open
Abstract
We previously established a novel method for nuclear transfer in medaka (Oryzias latipes) using non-enucleated, diploidized eggs as recipients for adult somatic cell nuclei. Here we report the first attempt to apply this method to another fish species. To examine suitability of using non-enucleated eggs as recipients for nuclear transfer in the zebrafish (Danio rerio), we transferred blastula cell nuclei from a wild-type donor strain to non-enucleated, unfertilized eggs from a golden recipient strain. As a result, 31 of 184 (16.8%) operated eggs developed normally and reached the adult stage. Twenty-eight (15.2%) of these transplants showed wild-type phenotype and the remaining three (1.6%) were golden. Except for one individual that exhibited diploid/tetraploid mosaicism, all of the wild-type nuclear transplants were either triploid or diploid. While all of 19 triploid transplants were infertile, a total of six transplants (21.4%) were fertile (five of the eight diploid transplants and one transplant exhibiting ploidy mosaicism). Except for one diploid individual, all of the fertile transplants transferred both the wild-type golden gene allele (slc24a5) as well as the phenotype, the wild-type body color, to their F1 and F2 progeny in a typical Mendelian fashion. PCR analysis of slc24a5 suggested that triploidy originated from a fused nucleus in the diploid donor and haploid recipient nuclei, and that the sole origin of diploidy was the diploid donor nucleus. The results of the present study demonstrated the suitability of using non-enucleated eggs as recipients for nuclear transfer experiments in zebrafish.
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Affiliation(s)
- Manabu Hattori
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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Giamarchi A, Feng S, Rodat-Despoix L, Xu Y, Bubenshchikova E, Newby LJ, Hao J, Gaudioso C, Crest M, Lupas AN, Honoré E, Williamson MP, Obara T, Ong ACM, Delmas P. A polycystin-2 (TRPP2) dimerization domain essential for the function of heteromeric polycystin complexes. EMBO J 2010; 29:1176-91. [PMID: 20168298 PMCID: PMC2857461 DOI: 10.1038/emboj.2010.18] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Accepted: 01/25/2010] [Indexed: 01/26/2023] Open
Abstract
Autosomal dominant polycystic kidney disease (ADPKD) is caused by mutations in two genes, PKD1 and PKD2, which encode polycystin-1 (PC1) and polycystin-2 (PC2), respectively. Earlier work has shown that PC1 and PC2 assemble into a polycystin complex implicated in kidney morphogenesis. PC2 also assembles into homomers of uncertain functional significance. However, little is known about the molecular mechanisms that direct polycystin complex assembly and specify its functions. We have identified a coiled coil in the C-terminus of PC2 that functions as a homodimerization domain essential for PC1 binding but not for its self-oligomerization. Dimerization-defective PC2 mutants were unable to reconstitute PC1/PC2 complexes either at the plasma membrane (PM) or at PM-endoplasmic reticulum (ER) junctions but could still function as ER Ca(2+)-release channels. Expression of dimerization-defective PC2 mutants in zebrafish resulted in a cystic phenotype but had lesser effects on organ laterality. We conclude that C-terminal dimerization of PC2 specifies the formation of polycystin complexes but not formation of ER-localized PC2 channels. Mutations that affect PC2 C-terminal homo- and heteromerization are the likely molecular basis of cyst formation in ADPKD.
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Affiliation(s)
- Aurélie Giamarchi
- Centre de Recherche en Neurophysiologie et Neurobiologie de Marseille, UMR 6231, CNRS, Université de la Méditerranée, Bd Pierre Dramard, Marseille Cedex 15, France
| | - Shuang Feng
- Kidney Genetics Group, Academic Unit of Nephrology, The Henry Wellcome Laboratories for Medical Research, University of Sheffield Medical School, Sheffield, UK
| | - Lise Rodat-Despoix
- Centre de Recherche en Neurophysiologie et Neurobiologie de Marseille, UMR 6231, CNRS, Université de la Méditerranée, Bd Pierre Dramard, Marseille Cedex 15, France
| | - Yaoxian Xu
- Kidney Genetics Group, Academic Unit of Nephrology, The Henry Wellcome Laboratories for Medical Research, University of Sheffield Medical School, Sheffield, UK
| | - Ekaterina Bubenshchikova
- Department of Medicine, MetroHealth Medical Center, Case Western Reserve University, MetroHealth Drive, Cleveland, OH, USA
| | - Linda J Newby
- Kidney Genetics Group, Academic Unit of Nephrology, The Henry Wellcome Laboratories for Medical Research, University of Sheffield Medical School, Sheffield, UK
| | - Jizhe Hao
- Centre de Recherche en Neurophysiologie et Neurobiologie de Marseille, UMR 6231, CNRS, Université de la Méditerranée, Bd Pierre Dramard, Marseille Cedex 15, France
| | - Christelle Gaudioso
- Centre de Recherche en Neurophysiologie et Neurobiologie de Marseille, UMR 6231, CNRS, Université de la Méditerranée, Bd Pierre Dramard, Marseille Cedex 15, France
| | - Marcel Crest
- Centre de Recherche en Neurophysiologie et Neurobiologie de Marseille, UMR 6231, CNRS, Université de la Méditerranée, Bd Pierre Dramard, Marseille Cedex 15, France
| | - Andrei N Lupas
- Department of Protein Evolution at the Max-Planck-Institute for Developmental Biology, Tuebingen, Germany
| | - Eric Honoré
- IPMC-CNRS UMR 6097, route des Lucioles, Valbonne, France
| | - Michael P Williamson
- Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield, UK
| | - Tomoko Obara
- Department of Medicine, MetroHealth Medical Center, Case Western Reserve University, MetroHealth Drive, Cleveland, OH, USA
- Department of Genetics, Case Western Reserve University, Cleveland, OH, USA
| | - Albert CM Ong
- Kidney Genetics Group, Academic Unit of Nephrology, The Henry Wellcome Laboratories for Medical Research, University of Sheffield Medical School, Sheffield, UK
| | - Patrick Delmas
- Centre de Recherche en Neurophysiologie et Neurobiologie de Marseille, UMR 6231, CNRS, Université de la Méditerranée, Bd Pierre Dramard, Marseille Cedex 15, France
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Bubenshchikova E, Kaftanovskaya E, Hattori M, Kinoshita M, Adachi T, Hashimoto H, Ozato K, Wakamatsu Y. Nuclear Transplants from Adult Somatic Cells Generated by a Novel Method Using Diploidized Eggs as Recipients in Medaka Fish (Oryzias latipes). Cloning and Stem Cells 2008; 10:443-52. [DOI: 10.1089/clo.2008.0014] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ekaterina Bubenshchikova
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan
| | - Elena Kaftanovskaya
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan
| | - Manabu Hattori
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan
| | - Masato Kinoshita
- Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan
| | - Tomoko Adachi
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan
| | - Hisashi Hashimoto
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan
| | - Kenjiro Ozato
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan
| | - Yuko Wakamatsu
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Nagoya 464-8601, Japan
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Bubenshchikova E, Kaftanovskaya E, Motosugi N, Fujimoto T, Arai K, Kinoshita M, Hashimoto H, Ozato K, Wakamatsu Y. Diploidized eggs reprogram adult somatic cell nuclei to pluripotency in nuclear transfer in medaka fish (Oryzias latipes). Dev Growth Differ 2007; 49:699-709. [PMID: 17868280 DOI: 10.1111/j.1440-169x.2007.00963.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reprogramming of adult somatic cell nuclei to pluripotency has been unsuccessful in non-mammalian animals, primarily because of chromosomal aberrations in nuclear transplants, which are considered to be caused by asynchrony between the cell cycles of the recipient egg and donor nucleus. In order to normalize the chromosomal status, we used diploidized eggs by retention of second polar body release, instead of enucleated eggs, as recipients in nuclear transfer of primary culture cells from the caudal fin of adult green fluorescent protein gene (GFP) transgenic medaka fish (Oryzias latipes). We found that 2.7% of the reconstructed embryos grew into adults that expressed GFP in various tissues in the same pattern as in the donor fish. Moreover, these fish were diploid, fertile and capable of passing the marker gene to the next generation in Mendelian fashion. We hesitate to call these fish 'clones' because we used non-enucleated eggs as recipients; in effect, they may be chimeras consisting of cells derived from diploid recipient nuclei and donor nuclei. In either case, fish adult somatic cell nuclei were reprogrammed to pluripotency and differentiated into a variety of cell types including germ cells via the use of diploidized recipient eggs.
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Affiliation(s)
- Ekaterina Bubenshchikova
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
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Bubenshchikova E, Ju B, Pristyazhnyuk I, Niwa K, Kaftanovskaya E, Kinoshita M, Ozato K, Wakamatsu Y. Generation of Fertile and Diploid Fish, Medaka (Oryzias latipes), from Nuclear Transplantation of Blastula and Four-Somite-Stage Embryonic Cells into Nonenucleated Unfertilized Eggs. Cloning and Stem Cells 2005; 7:255-64. [PMID: 16390261 DOI: 10.1089/clo.2005.7.255] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
In two experimental series of transplantation of embryonic cell nuclei into nonenucleated unfertilized eggs in medaka (Oryzias latipes), fertile and diploid nuclear transplants were successfully generated. In the first experiment, nuclei from blastula cells of a medaka stock with the wild-type body color were transplanted into 1722 eggs from the orange-red variety. Of 26 adult nuclear transplants with the wild-type body color, 22 were, as expected, triploid and sterile, but the other four were fertile. Three of the four were diploid, and the last one was tetraploid. They transmitted the wild-type body color to the F1 and F2 progenies in a Mendelian fashion. In the second experiment, cell nuclei from four-somite-stage embryos of the orangered variety carrying the green fluorescent protein (GFP) transgene were transplanted into 1688 recipients of the same strain. Three adult nuclear transplants expressing GFP were obtained. Two of them were triploid and sterile, but the remaining one was fertile and diploid. The transgene of the donor nuclei was transmitted to the F(1) and F(2) offspring in a Mendelian fashion. These observations that diploid and fertile nuclear transplants could be obtained without enucleation of the recipient eggs may have important implications for future nuclear transplantation in medaka.
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Affiliation(s)
- Ekaterina Bubenshchikova
- Laboratory of Freshwater Fish Stocks, Bioscience and Biotechnology Center, Graduate School of Science, Nagoya University, Nagoya, Japan
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