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Cytogenetic and molecular characteristics of potamotrygon motoro and potamotrygon sp. (chondrichthyes, myliobatiformes, potamotrygonidae) from the amazon basin: Implications for the taxonomy of the genus

dc.contributor.authorda Cruz, Vanessa Paes [UNESP]
dc.contributor.authorNobile, Maria Ligia Oliveira [UNESP]
dc.contributor.authorPaim, Fabilene Gomes [UNESP]
dc.contributor.authorAdachi, Aisni Mayumi Correia de Lima [UNESP]
dc.contributor.authorRibeiro, Giovana da Silva [UNESP]
dc.contributor.authorFerreira, Daniela Carvalho
dc.contributor.authorPansonato-Alves, José Carlos [UNESP]
dc.contributor.authorCharvet, Patrícia
dc.contributor.authorOliveira, Claudio [UNESP]
dc.contributor.authorForesti, Fausto [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstituto de Biociências
dc.contributor.institutionUniversidade Federal do Paraná (UFPR)
dc.contributor.institutionUso e Conservação da Biodiversidade
dc.date.accessioned2021-06-25T10:58:14Z
dc.date.available2021-06-25T10:58:14Z
dc.date.issued2021-01-01
dc.description.abstractThe chromosomes of two freshwater stingrays, Potamotrygon motoro and Potamotrygon sp., from the Amazon River basin in Brazil were investigated using integrated molecular (cytochrome c oxidase subunit 1) and cytogenetic analyses. Potamotrygon motoro presented intraspecific variation in the diploid number, with 2n=66 in the females and 2n=65 in the males, while Potamotrygon sp. had a karyotype with 66 chromosomes, in both sexes. The C-banding revealed the presence of heterochromatic blocks accumulated in the centromeric region of all the chromosomes in both species. The FISH assays with 18S DNA probes highlighted the terminal region of three or four chromosome pairs in P. motoro and seven chromosomes in Potamotrygon sp. The rDNA 5S sequences were found in only one chromosomal pair in both species. The interspecific genetic distance based on the COI sequences, between P. motoro and Potamotrygon sp. from Amazon River was 10.8%, while that between the Amazonian P. motoro and Potamotrygon amandae from the Paraná River was 2.2%, and the genetic distance between Potamotrygon sp. and P. amandae was 11.8%. In addition to the new insights on the cytogenetics of the study species, the results of the present study confirmed the existence of heteromorphic sex-linked chromosomes in P. motoro.en
dc.description.affiliationUniversidade Estadual Paulista (UNESP) Instituto de Biociências de Botucatu Laboratório de Biologia e Genética de Peixes
dc.description.affiliationUniversidade Federal de Mato Grosso (UFMT) Instituto de Biociências Departamento de Biologia e Zoologia
dc.description.affiliationUniversidade Federal do Paraná (UFPR) Departamento de Engenharia Ambiental Laboratório de Ecologia e Conservação
dc.description.affiliationUniversidade Federal do Ceará (UFC) Departamento de Biologia Programa de Pós-Graduação em Sistemática Uso e Conservação da Biodiversidade
dc.description.affiliationUnespUniversidade Estadual Paulista (UNESP) Instituto de Biociências de Botucatu Laboratório de Biologia e Genética de Peixes
dc.identifierhttp://dx.doi.org/10.1590/1678-4685-gmb-2020-0083
dc.identifier.citationGenetics and Molecular Biology, v. 44, n. 2, 2021.
dc.identifier.doi10.1590/1678-4685-gmb-2020-0083
dc.identifier.fileS1415-47572021000300205.pdf
dc.identifier.issn1678-4685
dc.identifier.issn1415-4757
dc.identifier.scieloS1415-47572021000300205
dc.identifier.scopus2-s2.0-85104388733
dc.identifier.urihttp://hdl.handle.net/11449/207619
dc.language.isoeng
dc.relation.ispartofGenetics and Molecular Biology
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectBiodiversit
dc.subjectDNA barcode
dc.subjectFish chromosomes
dc.subjectFreshwater stingrays
dc.subjectPotamotrygon
dc.titleCytogenetic and molecular characteristics of potamotrygon motoro and potamotrygon sp. (chondrichthyes, myliobatiformes, potamotrygonidae) from the amazon basin: Implications for the taxonomy of the genusen
dc.typeArtigo
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Instituto de Biociências, Botucatupt
unesp.departmentGenética - IBBpt

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