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Rosero J, Monzani PS, Pessoa GP, Coelho GCZ, Carvalho GB, López LS, Senhorini JA, Dos Santos SCA, Yasui GS. Traceability of primordial germ cells in three neotropical fish species aiming genetic conservation actions. FISH PHYSIOLOGY AND BIOCHEMISTRY 2023:10.1007/s10695-023-01279-1. [PMID: 38060079 DOI: 10.1007/s10695-023-01279-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
Primordial germ cells (PGCs) are embryonic pluripotent cells that can differentiate into spermatogonia and oogonia, and therefore, PGCs are a genetic source for germplasm conservation through cryobanking and the generation of germline chimeras. The knowledge of PGC migration routes is essential for transplantation studies. In this work, the mRNA synthesized from the ddx4 3'UTR sequence of Pseudopimelodus mangurus, in fusion with gfp or dsred, was microinjected into zygotes of three neotropical species (P. mangurus, Astyanax altiparanae, and Prochilodus lineatus) for PGC labeling. Visualization of labeled PGCs was achieved by fluorescence microscopy during embryonic development. In addition, ddx4 and dnd1 expressions were evaluated during embryonic development, larvae, and adult tissues of P. mangurus, to validate their use as a PGC marker. As a result, the effective identification of presumptive PGCs was obtained. DsRed-positive PGC of P. mangurus was observed in the hatching stage, GFP-positive PGC of A. altiparanae in the gastrula stage, and GFP-positive PGCs from P. lineatus were identified at the segmentation stage, with representative labeling percentages of 29% and 16% in A. altiparanae and P. lineatus, respectively. The expression of ddx4 and dnd1 of P. mangurus confirmed the specificity of these genes in germ cells. These results point to the functionality of the P. mangurus ddx4 3'UTR sequence as a PGC marker, demonstrating that PGC labeling was more efficient in A. altiparanae and P. lineatus. The procedures used to identify PGCs in P. mangurus consolidate the first step for generating germinal chimeras as a conservation action of P. mangurus.
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Affiliation(s)
- Jenyffer Rosero
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, São Paulo, Brazil.
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil.
| | - Paulo Sérgio Monzani
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
- Institute of Bioscience, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Giselle Pessanha Pessoa
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
- Institute of Bioscience, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Geovanna Carla Zacheo Coelho
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
- Institute of Bioscience, São Paulo State University, Botucatu, São Paulo, Brazil
| | - Gabriella Braga Carvalho
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, São Paulo, Brazil
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
| | - Lucia Suárez López
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
- Institute of Bioscience, São Paulo State University, Botucatu, São Paulo, Brazil
| | - José Augusto Senhorini
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
- Institute of Bioscience, São Paulo State University, Botucatu, São Paulo, Brazil
| | | | - George Shigueki Yasui
- Department of Animal Reproduction, School of Veterinary Medicine and Animal Science, University of São Paulo, Pirassununga, São Paulo, Brazil
- Laboratory of Fish Biotechnology, National Center for Research and Conservation of Continental Aquatic Biodiversity, Chico Mendes Institute of Biodiversity Conservation, Pirassununga, São Paulo, Brazil
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Vieira EDLP, Egger RC, Lima TDC, Paiva MB, Gonçalves LU, Honckzarick A, Godoy L, Tavares GC, Kuradomi RY. Short-term preservation of Colossoma macropomum oocytes by different methods and chilling temperatures. Theriogenology 2022; 191:22-34. [DOI: 10.1016/j.theriogenology.2022.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/26/2022] [Accepted: 07/14/2022] [Indexed: 10/16/2022]
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de Souza TG, Kuradomi RY, Rodrigues SM, Batlouni SR. Wild Leporinus friderici induced spawning with different dose of mGnRHa and metoclopramide or carp pituitary extract. Anim Reprod 2020; 17:e20190078. [PMID: 32399066 PMCID: PMC7212741 DOI: 10.21451/1984-3143-ar2019-0078] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Breeding technology is of utmost importance for reproduction of wild fish in captivity for the reintroduction and selective breeding programs purposes. The main challenge is that when applied to wild undomesticated specimens, conventional protocols often cause breeders and/or embryo mortality and spawning failure. In this study, we evaluated the reproductive performance of wild Leporinus friderici, a great importance fish for subsistence fishing in South American rivers, applying conventional and lower-dose hormonal therapies by means of two consecutive experiments. In the first, a conventional (0.5 and 5.5 mg/kg) and a lower carp pituitary extract (CPE) dose (0.5 and 1.0 mg/kg) were applied. In the second, a conventional mammalian GnRH analogue associated with metoclopramide (mGnRHa + MET) (40 µg mGnRHa + 20 mg MET/kg) and a lower dose (4 μg mGnRHa + 2 mg MET/kg and 8 µg + 4 mg of mGnRHa + MET/kg) were applied. Ovulation was observed in all treatments, however, only lower CPE protocol provided viable embryos. High levels of 17α,20β-dihydroxy-4-pregnen-3-one (DHP) and 17β estradiol (E2) detected in conventional, but not in lower CPE dose, at ovulation, might be associated to the mortality of the embryos. The use of lower CPE dose applied here was the best way to obtain L. friderici viable embryos. These results directly contribute to the knowledge about poorly explored effects of reproductive management and hormonal therapies in wild-type breeders, showing that the use of reduced doses may be an alternative to reproductive success.
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Affiliation(s)
| | - Rafael Yutaka Kuradomi
- Centro de Aquicultura, Universidade Estadual Paulista, Jaboticabal, SP, Brasil.,Instituto de Ciências Exatas e Tecnologia, Universidade Federal do Amazonas, Itacoatiara, AM, Brasil
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Pereira TSB, Boscolo CNP, Moreira RG, Batlouni SR. Leporinus elongatus induced spawning using carp pituitary extract or mammalian GnRH analogue combined with dopamine receptor antagonists. Anim Reprod 2018; 15:64-70. [PMID: 33365097 PMCID: PMC7746223 DOI: 10.21451/1984-3143-2017-ar983] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Several studies have been developed to support the replacement of the crude carp pituitary
extract (CPE) by synthetic products for induced reproduction of South American rheophilic
species. However, results have been quite heterogeneous and there is no consensus or a routine
use of synthetic products in these species. Thus, the aim of this study was to evaluate the ovulatory
process in L. elongatus using different protocols of hormonal induction.
Thus, fifteen wild mature females maintained at the Experimental Fish Station, Salto Grande,
SP, Brazil were submitted to three different hormonal treatments: CPE (fractioned dose:
0.5 and 5.0 mg kg-1); mGnRHa (single dose: 3.5 µg kg-1) and
mGnRHa (single dose: 5.0 µg kg-1). The spawning rate and absolute fecundity
were similar among the treatments, but fertility rates were higher for CPE treatment (23.60
± 9.40) then for mGnRHa treatments (close to or zero zero). Although females ovulated
in all treatments, none of them provided viable embryos, showing hatching rates close to zero
or zero. Both mGnRHa treatments were more potent for inducing the ovulatory process then CPE
treatment, which was evidenced by the fact that the formers showed higher volume density of
postovulatory follicles (POF). Accordingly, E2 and 17α-OHP plasma
levels were higher for the mGnRHa treated females compared to the CPE one at the time of ovulation.
In this study we confirmed previous scientific evidence that, regardless of whether promoting
ovulation, the use of conventional CPE and GnRH doses are not appropriate for some South American
migratory species, due to the non-attainment of viable embryos. Moreover, we have brought
new information about the relationship between reproductive performance and gonadal steroids
concentrations using different hormonal therapies, contributing to understand the reasons
for Leporinus elongatus embryo loss in induced spawning.
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de Almeida MD, Pereira TSB, Batlouni SR, Boscolo CNP, de Almeida EA. Estrogenic and anti-androgenic effects of the herbicide tebuthiuron in male Nile tilapia (Oreochromis niloticus). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 194:86-93. [PMID: 29169052 DOI: 10.1016/j.aquatox.2017.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 11/11/2017] [Accepted: 11/13/2017] [Indexed: 06/07/2023]
Abstract
Tebuthiuron is a phenylurea herbicide widely used in agriculture that can reach the aquatic environments, possibly posing negative effects to the aquatic biota. Phenylurea herbicides, such as diuron, are known to cause estrogenic and anti-androgenic effects in fish, but no such effects were yet reported for tebuthiuron exposure. Thus, the aim of this study was to evaluate if tebuthiuron, at environmentally relevant concentrations (100 and 200ng/L) and after 25days of exposure have estrogenic and/or anti-androgenic effects on male of Nile tilapia (Oreochromis niloticus), through the evaluation of plasmatic testosterone (T) and estradiol (E2) levels, brain aromatase (CYP19) levels (western-blot), and by evaluating the histology of the testicles. When compared to the control group, plasmatic T levels decreased about 76% in the animals exposed to 200ng/L of tebuthiuron, while E2 levels increased about 94%, which could be related to a significant increase (77%) in CYP19A1 levels, an enzyme that catalyzes the conversion of androgens into estrogens. Histological analyses of the testicles also demonstrated that tebuthiuron at both tested concentrations caused a decrease in the diameter of the seminiferous tubules and in the diameter of the lumen. Therefore, the gonadosomatic index (GSI) was reduced by 36% % in the animals exposed 200ng/L to tebuthiuron. Indeed, the relative frequency of spermatocytes and spermatids increased respectively 73% (200ng/L) and 61% (100ng/L) in the tebuthiuron exposed animals, possibly due to the impairment of sperm release into the lumen, that was decreased 93% (200ng/L) in the treated animals compared to the control. These results confirm that tebuthiuron causes estrogenic and anti-androgenic effects in Nile tilapias at environmentally relevant concentrations.
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Affiliation(s)
- Milena Devechi de Almeida
- Department of Chemistry and Environmental Science, Universidade Estadual Paulista (IBILCE/UNESP), Rua Critóvão Colombo, 2265, CEP-15054-000, São José do Rio Preto, SP, Brazil
| | - Thiago Scremin Boscolo Pereira
- Rio Preto Universitary Center, UNIRP, Rua Ivete Gabriel Atique, 45, CEP-15025-400, São José do Rio Preto, SP, Brazil; Medical School of São José do Rio Preto, FACERES, Av. Anísio Haddad 6751, CEP-15090-305, São José do Rio Preto, SP, Brazil
| | - Sergio Ricardo Batlouni
- Department of Aquaculture, Universidade Estadual Paulista (CAUNESP), Via de Acesso Prof. Paulo Donato Castelane, s/n. CEP-14884-900, Jaboticabal, SP, Brazil
| | - Camila Nomura Pereira Boscolo
- Rio Preto Universitary Center, UNIRP, Rua Ivete Gabriel Atique, 45, CEP-15025-400, São José do Rio Preto, SP, Brazil
| | - Eduardo Alves de Almeida
- Department of Natural Sciences, FundaçãoUniversidade Regional de Blumenau, FURB, Av. Antonio da Veiga 140, Itoupava Seca, CEP-89030-903, Blumenau, Santa Catarina, Brazil.
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Kuradomi RY, De Souza TG, Foresti F, Schulz RW, Bogerd J, Moreira RG, Furlan LR, Almeida EA, Maschio LR, Batlouni SR. Effects of re-stripping on the seminal characteristics of pacu (Piaractus mesopotamicus) during the breeding season. Gen Comp Endocrinol 2016; 225:162-173. [PMID: 26095224 DOI: 10.1016/j.ygcen.2015.06.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Revised: 06/04/2015] [Accepted: 06/13/2015] [Indexed: 11/21/2022]
Abstract
Seminal characteristics in teleost fish with an annual reproductive period, such as pacu (Piaractus mesopotamicus), may vary during the breeding season. The sperm formed before the beginning of the spawning period may be stored for a long time, causing damage to the cells. Therefore, re-stripping may be an important way to eliminate the "old" and allow for the collection of "new" spermatozoids. In this study, we analyzed the seminal characteristics of hormonally induced pacu at the beginning, middle and end of the breeding season, and we analyzed samples from re-stripped males (stripped first at the beginning, re-stripped in the middle, and re-stripped again at the end of the season) during two breeding seasons. The sperm density, ionic composition, pH, and osmolality were similar among the groups. The semen volume, seminal plasma protein concentration and incidence of morphologically anomalous sperm increased over time. In addition, some parameters that are associated with good-quality semen decreased, such as sperm motility, viability and DNA integrity. Moreover, we observed a positive association among motility, viability and DNA integrity for sperm with elevated 11-ketotestosterone, but there was no such association for fshb or lhb mRNA levels in the pituitary. The semen that was obtained earlier (at the beginning) or from re-stripped males exhibited better characteristics than the other samples collected. In conclusion, collecting semen from pacu at the end of breeding season should be avoided; it is preferable to strip early and then re-strip later in the season, and this approach may be used for diverse aquaculture purposes.
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Affiliation(s)
- Rafael Y Kuradomi
- Centro de Aquicultura da UNESP - CAUNESP, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo Donato Castellane, S/N, 14884-900 Jaboticabal, SP, Brazil
| | - Thiago G De Souza
- Centro de Aquicultura da UNESP - CAUNESP, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo Donato Castellane, S/N, 14884-900 Jaboticabal, SP, Brazil
| | - Fausto Foresti
- Centro de Aquicultura da UNESP - CAUNESP, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo Donato Castellane, S/N, 14884-900 Jaboticabal, SP, Brazil; Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista - UNESP, Distrito de Rubião Júnior, S/N, 18618-970 Botucatu, SP, Brazil
| | - Rüdiger W Schulz
- Reproductive Biology Group, Division of Developmental Biology, Department of Biology, Faculty of Sciences, Utrecht University, Kruyt Building, Room W-606, Padualaan 8, NL-3584 CH Utrecht, The Netherlands
| | - Jan Bogerd
- Reproductive Biology Group, Division of Developmental Biology, Department of Biology, Faculty of Sciences, Utrecht University, Kruyt Building, Room W-606, Padualaan 8, NL-3584 CH Utrecht, The Netherlands
| | - Renata G Moreira
- Departamento de Fisiologia, Instituto de Biociências, Universidade de São Paulo - USP, Rua do Matão, Travessa 14, n.321, Sala 220 Cidade Universitária, 05508-900 São Paulo, SP, Brazil
| | - Luiz R Furlan
- Centro de Aquicultura da UNESP - CAUNESP, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo Donato Castellane, S/N, 14884-900 Jaboticabal, SP, Brazil
| | - Eduardo A Almeida
- Depto de Química e Ciências Ambientais, Universidade Estadual Paulista - UNESP, Rua Cristóvão Colombo, n.2265, Jardim Nazareth, 15054-000 São José do Rio Preto, SP, Brazil
| | - Lucilene R Maschio
- Depto de Química e Ciências Ambientais, Universidade Estadual Paulista - UNESP, Rua Cristóvão Colombo, n.2265, Jardim Nazareth, 15054-000 São José do Rio Preto, SP, Brazil
| | - Sergio R Batlouni
- Centro de Aquicultura da UNESP - CAUNESP, Universidade Estadual Paulista - UNESP, Via de Acesso Prof. Paulo Donato Castellane, S/N, 14884-900 Jaboticabal, SP, Brazil.
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Pereira TSB, Boscolo CNP, Silva DGHD, Batlouni SR, Schlenk D, Almeida EAD. Anti-androgenic activities of diuron and its metabolites in male Nile tilapia (Oreochromis niloticus). AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 164:10-15. [PMID: 25930013 DOI: 10.1016/j.aquatox.2015.04.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 04/08/2015] [Accepted: 04/10/2015] [Indexed: 06/04/2023]
Abstract
Diuron (3-(3,4-dichlorophenyl)-1,1-dimethylurea) is a widely used herbicide which has been frequently detected in surface waters throughout the world. In vivo bioassay guided fractionation studies indicated that diuron may have estrogenic activity augmented by biotransformation. This study evaluated the effects of diuron and three of its metabolites on plasma hormone concentrations and spermatogenesis of the freshwater fish Nile tilapia (Oreochromis niloticus). Sexually mature male fish were exposed for 25 days to diuron, as well to its metabolites 3,4-dichloroaniline (DCA), 3,4-dichlorophenylurea (DCPU) and 3,4-dichlorophenyl-N-methylurea (DCPMU), at concentrations of 200ng/L. Testosterone levels were decreased by diuron, but had limited effects on gonadal histology. Diuron metabolites, however, caused significant decreases in testosterone and in 11-ketotestosterone, gonadosomatic index, diameter of seminiferous tubules and in the mean percentages of germ cells (spermatids and spermatozoa). We conclude that these metabolites have antiandrogenic activity to male Nile tilapia, potentially causing reproductive impairment in male fish.
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Affiliation(s)
- Thiago Scremin Boscolo Pereira
- Department of Animal Biology, Universidade Estadual Paulista (IBILCE/UNESP), Rua Cristóvão Colombo, 2265, CEP - 15054-000, São José do Rio Preto, SP, Brazil
| | - Camila Nomura Pereira Boscolo
- Department of Animal Biology, Universidade Estadual Paulista (IBILCE/UNESP), Rua Cristóvão Colombo, 2265, CEP - 15054-000, São José do Rio Preto, SP, Brazil
| | - Danilo Grünig Humberto da Silva
- Department of Chemistry and Environmental Sciences, Universidade Estadual Paulista (IBILCE/UNESP), Rua Cristóvão Colombo, 2265, CEP - 15054-000, São José do Rio Preto, SP, Brazil
| | - Sergio Ricardo Batlouni
- Department of Aquaculture, Universidade Estadual Paulista (CAUNESP), Via de Acesso Prof. Paulo Donato Castelane, s/n. CEP - 14884-900, Jaboticabal, SP, Brazil
| | - Daniel Schlenk
- Department of Environmental Sciences, University of California, 3401 Watkins Dr, Riverside, CA 92521, USA
| | - Eduardo Alves de Almeida
- Department of Chemistry and Environmental Sciences, Universidade Estadual Paulista (IBILCE/UNESP), Rua Cristóvão Colombo, 2265, CEP - 15054-000, São José do Rio Preto, SP, Brazil.
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