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dc.contributor.authorBulau, Sandra Eloisapt_BR
dc.contributor.authorKretschmer, Rafaelpt_BR
dc.contributor.authorFuro, Ivanete de Oliveirapt_BR
dc.contributor.authorOliveira, Edivaldo Herculano Corrêapt_BR
dc.contributor.authorFreitas, Thales Renato Ochotorena dept_BR
dc.date.accessioned2024-03-19T05:04:18Zpt_BR
dc.date.issued2021pt_BR
dc.identifier.issn2673-8856pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/273771pt_BR
dc.description.abstractKaryotypic analyses have several applications in studies of chromosome organization, evolution, and cytotaxonomy. They are also essential to genome assembly projects. Here, we present for the first time the karyotype description of the endangered species yellow cardinal, Gubernatrix cristata (Passeriformes, Thraupidae), using conventional staining with Giemsa and 18S rDNA probes. This species has 78 chromosomes, with 12 pairs of macrochromosomes and 27 microchromosome pairs. The 18S rDNA clusters were found in four microchromosomes. Our results revealed that G. cristata has a typical avian karyotype (approximately 80 chromosomes). However, G. cristata has an apomorphic state in relation to the 18S rDNA distribution since the ancestral condition corresponds to only two microchromosomes with these sequences. Probably, duplications and translocations were responsible for increasing the number of 18S rDNA clusters in G. cristata. The results were compared and discussed with respect to other Thraupidae and Passeriformes members. Considering the globally threatened status of G. cristata, we believe that its karyotype description could be a starting point for future cytogenetics and sequencing projects.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofDNA. United States. Vol. 1, no. 2 (2021), p.77–84pt_BR
dc.rightsOpen Accessen
dc.subjectAvian chromosomesen
dc.subjectGenomapt_BR
dc.subjectChromosomal rearrangementsen
dc.subjectrDNAen
dc.titleKaryotype organization of the endangered species yellow cardinal (Gubernatrix cristata)pt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001170916pt_BR
dc.type.originEstrangeiropt_BR


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