Sex-chromosome Variability in Zygodontomys lasiurus (Rodentia, Cricetidae)

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorKasahara, Sanae-
Autor(es): dc.creatorYonenaga-Yassuda, Yatiyo-
Data de aceite: dc.date.accessioned2025-08-21T22:47:47Z-
Data de disponibilização: dc.date.available2025-08-21T22:47:47Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued1983-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1508/cytologia.48.569-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/223902-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/223902-
Descrição: dc.descriptionCytogenetic studies were performed on 26 specimens of the rodent Zygodontomys lasiurus (2n=34, 2n=33/34), collected in the State of São Paulo, Brazil. The G- and C-band patterns of mitotic chromosomes were studied and the NORs were localized in the karyotype. Two types of acrocentric X chromosomes, morphologically distinctive, were observed, one of them having an enlarged short arm (Xm). In some females the sex chromosome pair consisted of an Xm and a small submetacentric Xd similar to the Y chromosome. The possibilities that these are females bearing a deletion in one X plus a duplication in the other, or are true XY females are discussed. A chromosome mosaicism of 2n=33/34 type was detected in one female. The 2n=34 cell line had an XmX constitution, while the 2n=33 cells were XmO. Both early dissociation between X and Y chromosomes and altered segregation of such chromosomes at metaphase II were observed in one male specimen. © 1983, Japan Mendel Society, International Society of Cytology. All rights reserved.-
Descrição: dc.descriptionDepartamento de Biologia Instituto de Biociéncias UNESP Campus de Rio Claro, CP 178, 13500, Rio Claro, SP, Brasil-
Descrição: dc.descriptionDepartamento de Biologia Instituto de Biociéncias, USP, CP 11461, 05421, São Paulo, SP, Brasil-
Descrição: dc.descriptionDepartamento de Biologia Instituto de Biociéncias UNESP Campus de Rio Claro, CP 178, 13500, Rio Claro, SP, Brasil-
Formato: dc.format569-576-
Idioma: dc.languageen-
Relação: dc.relationCYTOLOGIA-
???dc.source???: dc.sourceScopus-
Título: dc.titleSex-chromosome Variability in Zygodontomys lasiurus (Rodentia, Cricetidae)-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.