Heat-induced triploids in Brycon amazonicus: A strategic fish species for aquaculture and conservation

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dc.contributor.authorDo Nascimento, Nivaldo Ferreira
dc.contributor.authorBertolini, Rafaela Manchin [UNESP]
dc.contributor.authorLopez, Lucia Soares [UNESP]
dc.contributor.authorNakaghi, Laura Satiko Okada
dc.contributor.authorMonzani, Paulo Sérgio
dc.contributor.authorSenhorini, José Augusto [UNESP]
dc.contributor.authorVianna, Roberto Castro
dc.contributor.authorYasui, George Shigueki [UNESP]
dc.contributor.institutionRodovia Pref. Euberto Nemésio Pereira de Godoy
dc.contributor.institutionFaculdade de Medicina Veterinária e Ciência Animal
dc.contributor.institutionUnidade Acadêmica de Serra Talhada
dc.contributor.institutionVia de Acesso Prof. Paulo Donato Castellane S/n
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionChina Three Gorges Corporation (CTG)
dc.date.accessioned2021-06-25T11:03:23Z
dc.date.available2021-06-25T11:03:23Z
dc.date.issued2021-01-01
dc.description.abstractSummary Triploidization plays an important role in aquaculture and surrogate technologies. In this study, we induced triploidy in the matrinxã fish (Brycon amazonicus) using a heat-shock technique. Embryos at 2 min post fertilization (mpf) were heat shocked at 38°C, 40°C, or 42°C for 2 min. Untreated, intact embryos were used as a control. Survival rates during early development were monitored and ploidy status was confirmed using flow cytometry and nuclear diameter analysis of erythrocytes. The hatching rate reduced with heat-shock treatment, and heat-shock treatments at 42°C resulted in no hatching events. Optimal results were obtained at 40°C with 95% of larvae exhibiting triploidy. Therefore, we report that heat-shock treatments of embryos (2 mpf) at 40°C for 2 min is an effective way to induce triploid individuals in B. amazonicus.en
dc.description.affiliationLab. of Fish Biotech. Natl. Ctr. for Res. and Conserv. of Contl. Fish Chico Mendes Inst. of Biodiv. Conserv. Rodovia Pref. Euberto Nemésio Pereira de Godoy
dc.description.affiliationUniversidade de Saõ Paulo Faculdade de Medicina Veterinária e Ciência Animal Departamento de Reproducąõ Animal
dc.description.affiliationUniversidade Federal Rural de Pernambuco (UFRPE) Unidade Acadêmica de Serra Talhada, Av. Gregório Ferraz Nogueira, s/n,-PE
dc.description.affiliationAquaculture Center Saõ Paulo State University Via de Acesso Prof. Paulo Donato Castellane S/n
dc.description.affiliationUniversidade Estadual Paulista (UNESP) Departamento de Zoologia Sp
dc.description.affiliationChina Three Gorges Corporation (CTG)
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP) Departamento de Zoologia Sp
dc.identifierhttp://dx.doi.org/10.1017/S0967199421000125
dc.identifier.citationZygote.
dc.identifier.doi10.1017/S0967199421000125
dc.identifier.issn1469-8730
dc.identifier.issn0967-1994
dc.identifier.scopus2-s2.0-85103703930
dc.identifier.urihttp://hdl.handle.net/11449/207926
dc.language.isoeng
dc.relation.ispartofZygote
dc.sourceScopus
dc.subjectAquaculture
dc.subjectChromosome manipulation
dc.subjectFish
dc.subjectHeat shock
dc.subjectPolyploidy
dc.titleHeat-induced triploids in Brycon amazonicus: A strategic fish species for aquaculture and conservationen
dc.typeArtigo
unesp.author.orcid0000-0002-0515-3431 0000-0002-0515-3431 0000-0002-0515-3431[1]
unesp.author.orcid0000-0002-5120-448X 0000-0002-5120-448X[6]

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Jaboticabal - CAUNESP - Centro de Aquicultura da Unesp