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Meiotic pairing of B chromosomes, multiple sexual system, and Robertsonian fusion in the red brocket deer Mazama americana (Mammalia, Cervidae)

dc.contributor.authorAquino, C. I. [UNESP]
dc.contributor.authorAbril, V. V. [UNESP]
dc.contributor.authorDuarte, J. M B [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:30:41Z
dc.date.available2014-05-27T11:30:41Z
dc.date.issued2013-09-13
dc.description.abstractDeer species of the genus Mazama show significant inter and intraspecific chromosomal variation due to the occurrence of rearrangements and B chromosomes. Given that carriers of aneuploidies and structural rearrangements often show anomalous chromosome pairings, we here performed a synaptonemal complex analysis to study chromosome pairing behavior in a red brocket deer (Mazama americana) individual that is heterozygous for a Robertsonian translocation, is a B chromosome carrier, and has a multiple sex chromosome system (XY1Y2). The synaptonemal complex in spermatocytes showed normal chromosome pairings for all chromosomes, including the autosomal and sex trivalents. The electromicrographs showed homology among B chromosomes since they formed bivalents, but they also appeared as univalents, indicating their anomalous behavior and non-Mendelian segregation. Thus, synaptonemal complex analysis is a useful tool to evaluate the role of B chromosomes and rearrangements during meiosis on the intraspecific chromosomal variation that is observed in the majority of Mazama species. © FUNPEC-RP.en
dc.description.affiliationNúcleo de Pesquisa e Conservação de Cervídeos Departamento de Zootecnia Universidade Estadual Paulista, Campus de Jaboticabal, Jaboticabal, SP
dc.description.affiliationUniversidade Estadual Paulista, Campus de Jaboticabal, Jaboticabal, SP
dc.description.affiliationUnespNúcleo de Pesquisa e Conservação de Cervídeos Departamento de Zootecnia Universidade Estadual Paulista, Campus de Jaboticabal, Jaboticabal, SP
dc.description.affiliationUnespUniversidade Estadual Paulista, Campus de Jaboticabal, Jaboticabal, SP
dc.format.extent3566-3574
dc.identifierhttp://dx.doi.org/10.4238/2013.September.13.1
dc.identifier.citationGenetics and Molecular Research, v. 12, n. 3, p. 3566-3574, 2013.
dc.identifier.doi10.4238/2013.September.13.1
dc.identifier.file2-s2.0-84884572863.pdf
dc.identifier.issn1676-5680
dc.identifier.scopus2-s2.0-84884572863
dc.identifier.urihttp://hdl.handle.net/11449/76557
dc.identifier.wosWOS:000331717400148
dc.language.isoeng
dc.relation.ispartofGenetics and Molecular Research
dc.relation.ispartofsjr0,439
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectB chromosome
dc.subjectCentric fusion
dc.subjectCervidae
dc.subjectSynaptonemal complex
dc.subjectXY1Y2
dc.titleMeiotic pairing of B chromosomes, multiple sexual system, and Robertsonian fusion in the red brocket deer Mazama americana (Mammalia, Cervidae)en
dc.typeArtigo
dcterms.licensehttp://geneticsmr.com/node/2
dspace.entity.typePublication
unesp.campusUniversidade Estadual Paulista (UNESP), Faculdade de Ciências Agrárias e Veterinárias, Jaboticabalpt
unesp.departmentZootecnia - FCAVpt

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