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dc.contributor.authorOliveira da Silva, Willam
dc.contributor.authorMalcher, Stella Miranda
dc.contributor.authorPereira, Adenilson Leão
dc.contributor.authorPieczarka, Julio Cesar
dc.contributor.authorFerguson-Smith, Malcolm Andrew
dc.contributor.authorO'Brien, Patricia Caroline Mary
dc.contributor.authorMendes-Oliveira, Ana Cristina
dc.contributor.authorGeise, Lena
dc.contributor.authorNagamachi, Cleusa Yoshiko
dc.description.abstractComparative chromosome-painting analysis among highly rearranged karyotypes of Sigmodontinae rodents (Rodentia, Cricetidae) detects conserved syntenic blocks, which are proposed as chromosomal signatures and can be used as phylogenetic markers. In the Akodontini tribe, the molecular topology (Cytb and/or IRBP) shows five low-supported clades (divisions: "Akodon", "Bibimys", "Blarinomys", "Oxymycterus", and "Scapteromys") within two high-supported major clades (clade A: "Akodon", "Bibimys", and "Oxymycterus"; clade B: "Blarinomys" and "Scapteromys"). Here, we examine the chromosomal signatures of the Akodontini tribe by using Hylaeamys megacephalus (HME) probes to study the karyotypes of Oxymycterus amazonicus (2n = 54, FN = 64) and Blarinomys breviceps (2n = 28, FN = 50), and compare these data with those from other taxa investigated using the same set of probes. We strategically employ the chromosomal signatures to elucidate phylogenetic relationships among the Akodontini. When we follow the evolution of chromosomal signature states, we find that the cytogenetic data corroborate the current molecular relationships in clade A nodes. We discuss the distinct events that caused karyotypic variability in the Oxymycterus and Blarinomys genera. In addition, we propose that Blarinomys may constitute a species complex, and that the taxonomy should be revised to better delimit the geographical boundaries and their taxonomic status.
dc.rightsAttribution 4.0 International
dc.sourceessn: 1422-0067
dc.sourcenlmid: 101092791
dc.subjectChromosome painting
dc.subjectConserved Syntenic Block
dc.titleChromosomal Signatures Corroborate the Phylogenetic Relationships within Akodontini (Rodentia, Sigmodontinae).
prism.publicationNameInternational journal of molecular sciences
dc.contributor.orcidOliveira da Silva, Willam [0000-0003-3125-1075]
dc.contributor.orcidPereira, Adenilson Leão [0000-0003-2687-5297]
dc.contributor.orcidMendes-Oliveira, Ana Cristina [0000-0002-7863-9678]
dc.contributor.orcidNagamachi, Cleusa Yoshiko [0000-0003-1516-2734]
pubs.funder-project-idCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (047/2012)
pubs.funder-project-idFundação Amazônia Paraense de Amparo à Pesquisa (007/2011, 2010/110447)
pubs.funder-project-idConselho Nacional de Desenvolvimento Científico e Tecnológico (552032/2010-7)
pubs.funder-project-idBanco Nacional de Desenvolvimento Econômico e Social (2.318.697.0001)

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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International