Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae)
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3390/genes14020306 http://hdl.handle.net/11449/246895 |
Resumo: | Ancistrus Kner, 1854, is the most diverse genus among the Ancistrini (Loricariidae) with 70 valid species showing a wide geographic distribution and great taxonomic and systematic complexity. To date, about 40 Ancistrus taxa have been karyotyped, all from Brazil and Argentina, but the statistic is uncertain because 30 of these reports deal with samples that have not yet been identified at the species level. This study provides the first cytogenetic description of the bristlenose catfish, Ancistrus clementinae Rendahl, 1937, a species endemic to Ecuador, aiming to verify whether a sex chromosome system is identifiable in the species and, if so, which, and if its differentiation is associated with the presence of repetitive sequences reported for other species of the family. We associated the karyotype analysis with the COI molecular identification of the specimens. Karyotype analysis suggested the presence of a ♂ZZ/♀ZW1W2 sex chromosome system, never detected before in Ancistrus, with both W1W2 chromosomes enriched with heterochromatic blocks and 18S rDNA, in addition to GC-rich repeats (W2). No differences were observed between males and females in the distribution of 5S rDNA or telomeric repeats. Cytogenetic data here obtained confirm the huge karyotype diversity of Ancistrus, both in chromosome number and sex-determination systems. |
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Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae)AncistriniHypostominaerDNAteleosttelomeric repeatsZZ/ZW1W2 sex systemAncistrus Kner, 1854, is the most diverse genus among the Ancistrini (Loricariidae) with 70 valid species showing a wide geographic distribution and great taxonomic and systematic complexity. To date, about 40 Ancistrus taxa have been karyotyped, all from Brazil and Argentina, but the statistic is uncertain because 30 of these reports deal with samples that have not yet been identified at the species level. This study provides the first cytogenetic description of the bristlenose catfish, Ancistrus clementinae Rendahl, 1937, a species endemic to Ecuador, aiming to verify whether a sex chromosome system is identifiable in the species and, if so, which, and if its differentiation is associated with the presence of repetitive sequences reported for other species of the family. We associated the karyotype analysis with the COI molecular identification of the specimens. Karyotype analysis suggested the presence of a ♂ZZ/♀ZW1W2 sex chromosome system, never detected before in Ancistrus, with both W1W2 chromosomes enriched with heterochromatic blocks and 18S rDNA, in addition to GC-rich repeats (W2). No differences were observed between males and females in the distribution of 5S rDNA or telomeric repeats. Cytogenetic data here obtained confirm the huge karyotype diversity of Ancistrus, both in chromosome number and sex-determination systems.Departamento de Acuacultura Universidad Técnica de Machala, Av. Panamericana km 5.5, Vía PasajeDepartamento de Morfologia Instituto de Biociências Universidade Estadual Paulista-UNESP, SPDepartamento de Genética e Evolução Universidade Federal de São Carlos, SPInstituto Nacional de Biodiversidad, Rumipamba No. 341 y Av. Shyris, Parque La CarolinaDipartimento di Biologia e Biotecnologie “C. Darwin” Sapienza-Università di Roma, Via Alfonso Borelli 50Departamento de Morfologia Instituto de Biociências Universidade Estadual Paulista-UNESP, SPUniversidad Técnica de MachalaUniversidade Estadual Paulista (UNESP)Universidade Federal de São Carlos (UFSCar)Instituto Nacional de BiodiversidadSapienza-Università di RomaNirchio, MauroOliveira, Claudio [UNESP]de Bello Cioffi, Marcelode Menezes Cavalcante Sassi, FranciscoValdiviezo, JonathanPaim, Fabilene GomesSoares, Leticia BatistaRossi, Anna Rita2023-07-29T12:53:32Z2023-07-29T12:53:32Z2023-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.3390/genes14020306Genes, v. 14, n. 2, 2023.2073-4425http://hdl.handle.net/11449/24689510.3390/genes140203062-s2.0-85148915056Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGenesinfo:eu-repo/semantics/openAccess2023-07-29T12:53:32Zoai:repositorio.unesp.br:11449/246895Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-07-29T12:53:32Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) |
title |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) |
spellingShingle |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) Nirchio, Mauro Ancistrini Hypostominae rDNA teleost telomeric repeats ZZ/ZW1W2 sex system |
title_short |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) |
title_full |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) |
title_fullStr |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) |
title_full_unstemmed |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) |
title_sort |
Occurrence of Sex Chromosomes in Fish of the Genus Ancistrus with a New Description of Multiple Sex Chromosomes in the Ecuadorian Endemic Ancistrus clementinae (Loricariidae) |
author |
Nirchio, Mauro |
author_facet |
Nirchio, Mauro Oliveira, Claudio [UNESP] de Bello Cioffi, Marcelo de Menezes Cavalcante Sassi, Francisco Valdiviezo, Jonathan Paim, Fabilene Gomes Soares, Leticia Batista Rossi, Anna Rita |
author_role |
author |
author2 |
Oliveira, Claudio [UNESP] de Bello Cioffi, Marcelo de Menezes Cavalcante Sassi, Francisco Valdiviezo, Jonathan Paim, Fabilene Gomes Soares, Leticia Batista Rossi, Anna Rita |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidad Técnica de Machala Universidade Estadual Paulista (UNESP) Universidade Federal de São Carlos (UFSCar) Instituto Nacional de Biodiversidad Sapienza-Università di Roma |
dc.contributor.author.fl_str_mv |
Nirchio, Mauro Oliveira, Claudio [UNESP] de Bello Cioffi, Marcelo de Menezes Cavalcante Sassi, Francisco Valdiviezo, Jonathan Paim, Fabilene Gomes Soares, Leticia Batista Rossi, Anna Rita |
dc.subject.por.fl_str_mv |
Ancistrini Hypostominae rDNA teleost telomeric repeats ZZ/ZW1W2 sex system |
topic |
Ancistrini Hypostominae rDNA teleost telomeric repeats ZZ/ZW1W2 sex system |
description |
Ancistrus Kner, 1854, is the most diverse genus among the Ancistrini (Loricariidae) with 70 valid species showing a wide geographic distribution and great taxonomic and systematic complexity. To date, about 40 Ancistrus taxa have been karyotyped, all from Brazil and Argentina, but the statistic is uncertain because 30 of these reports deal with samples that have not yet been identified at the species level. This study provides the first cytogenetic description of the bristlenose catfish, Ancistrus clementinae Rendahl, 1937, a species endemic to Ecuador, aiming to verify whether a sex chromosome system is identifiable in the species and, if so, which, and if its differentiation is associated with the presence of repetitive sequences reported for other species of the family. We associated the karyotype analysis with the COI molecular identification of the specimens. Karyotype analysis suggested the presence of a ♂ZZ/♀ZW1W2 sex chromosome system, never detected before in Ancistrus, with both W1W2 chromosomes enriched with heterochromatic blocks and 18S rDNA, in addition to GC-rich repeats (W2). No differences were observed between males and females in the distribution of 5S rDNA or telomeric repeats. Cytogenetic data here obtained confirm the huge karyotype diversity of Ancistrus, both in chromosome number and sex-determination systems. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-07-29T12:53:32Z 2023-07-29T12:53:32Z 2023-02-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.3390/genes14020306 Genes, v. 14, n. 2, 2023. 2073-4425 http://hdl.handle.net/11449/246895 10.3390/genes14020306 2-s2.0-85148915056 |
url |
http://dx.doi.org/10.3390/genes14020306 http://hdl.handle.net/11449/246895 |
identifier_str_mv |
Genes, v. 14, n. 2, 2023. 2073-4425 10.3390/genes14020306 2-s2.0-85148915056 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Genes |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799964396801228800 |