Chromosomal Microstructure Diversity in Three Astyanax (Characiformes, Characidae) Species: Comparative Analysis of the Chromosomal Locations of the 18S and 5S rDNAs

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)
dc.creatorPiscor, Diovani [UNESP]
dc.creatorAlves, Anderson Luis
dc.creatorParise-Maltempi, Patricia Pasquali [UNESP]
dc.date2015-10-21T13:12:10Z
dc.date2015-10-21T13:12:10Z
dc.date2015-02-01
dc.date.accessioned2023-09-12T06:38:49Z
dc.date.available2023-09-12T06:38:49Z
dc.identifierhttp://online.liebertpub.com/doi/abs/10.1089/zeb.2014.1036
dc.identifierZebrafish. New Rochelle: Mary Ann Liebert, Inc, v. 12, n. 1, p. 81-90, 2015.
dc.identifier1545-8547
dc.identifierhttp://hdl.handle.net/11449/128675
dc.identifier10.1089/zeb.2014.1036
dc.identifierWOS:000348323600008
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8778022
dc.descriptionThe species of genus Astyanax is widely distributed in freshwater neotropical zones. Astyanax is considered to be taxonomically confused, similar to other genera placed incertae sedis in Characidae. The cytogenetics of this genus is well characterized; species vary widely in diploid number, from 2n=36 chromosomes in Astyanax schubarti to 2n=50 for most species studied. The size, number, and position of different cytological markers vary among species and populations of Astyanax. We analyzed the karyotypes of individuals from three Astyanax species (Astyanax abramis, Astyanax altiparanae, and Astyanax eigenmanniorum) from populations not previously analyzed. We describe variations in several cytogenetic markers and the karyotypic relationships between them, specifically focusing on the characteristics of the conserved and divergent locations of the ribosomal genes. Our data are useful for establishing relationships between species and for investigating the karyotype evolution within the genus.
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionUniversidade Estadual Paulista ‘‘Júlio de Mesquita Filho’’ (UNESP) - Laboratório de Citogenética, Departamento de Biologia, Instituto de Biociências, Rio Claro, São Paulo, Brasil.
dc.descriptionEmpresa Brasileira de Pesquisa Agropecuária (Embrapa) Pesca e Aquicultura (CNPASA), Palmas, Tocantins, Brasil
dc.descriptionUniversidade Estadual Paulista ‘‘Júlio de Mesquita Filho’’ (UNESP) - Laboratório de Citogenética, Departamento de Biologia, Instituto de Biociências, Rio Claro, São Paulo, Brasil.
dc.format81-90
dc.languageeng
dc.publisherMary Ann Liebert, Inc
dc.relationZebrafish
dc.relation1.733
dc.relation0,795
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.titleChromosomal Microstructure Diversity in Three Astyanax (Characiformes, Characidae) Species: Comparative Analysis of the Chromosomal Locations of the 18S and 5S rDNAs
dc.typeArtigo


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