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metadata.dc.type: Artigo de Periódico
Issue Date: Sep-2015
metadata.dc.creator: LIMA, Jamily Lorena Ramos de
SOARES, Luiz Fabrício Angioletti
REMÉDIOS, Ana Cláudia Santana dos
SILVA, Gregory Thom e
ALEIXO, Alexandre Luis Padovan
SCHNEIDER, Maria Paula Cruz
MELLO, Claudio Vianna de
SCHNEIDER, Patrícia Neiva Coelho
Title: A putative RA-like region in the brain of the scale-backed antbird, Willisornis poecilinotus (Furnariides, Suboscines, Passeriformes, Thamnophilidae)
Citation: LIMA, Jamily Lorena Ramos de et al. A putative RA-like region in the brain of the scale-backed antbird, Willisornis poecilinotus (Furnariides, Suboscines, Passeriformes, Thamnophilidae). Genetics and Molecular Biology, Ribeirão Preto, v. 38, n. 3, p. 249-254, jul./set. 2015. Disponível em: <>. Acesso em: 10 jul. 2017. <>.
Abstract: The memorization and production of song in songbirds share important parallels with the process of speech acquisition in humans. In songbirds, these processes are dependent on a group of specialized telencephalic nuclei known as the song system: HVC (used as a proper name), RA (robust nucleus of arcopallium), LMAN (lateral magnocellular nucleus of the nidopallium) and striatal Area X. A recent study suggested that the arcopallium of the Sayornis phoebe, a non vocal learner suboscine species, contains a nucleus with some properties similar to those of songbird RA, suggesting that the song system may have been present in the last common ancestor of these groups. Here we report morphological and gene expression evidence that a region with some properties similar to RA is present in another suboscine, the Amazonian endemic Willisornis poecilinotus. Specifically, a discrete domain with a distinct Nissl staining pattern and that expresses the RA marker RGS4 was found in the arcopallium where the oscine RA is localized. Our findings, combined with the previous report on the S. phoebe, suggest that an arcopallial region with some RA-like properties was present in the ancestor of both Suboscines infraorders Tyranni and Furnarii, and is possibly an ancestral feature of Passeriformes.
Keywords: Cântico de aves
Aves canoras
Síntese de Riboprobe
Series/Report no.: Genetics and Molecular Biology
ISSN: 1678-4685 Brasil
Publisher: Universidade Federal do Pará
metadata.dc.publisher.initials: UFPA
metadata.dc.rights: Acesso Aberto
Appears in Collections:Artigos Científicos - ICB

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