↓ Skip to main content

A putative RA-like region in the brain of the scale-backed antbird, Willisornis poecilinotus (Furnariides, Suboscines, Passeriformes, Thamnophilidae)

Overview of attention for article published in Genetics and Molecular Biology, September 2015
Altmetric Badge

Citations

dimensions_citation
11 Dimensions

Readers on

mendeley
22 Mendeley
You are seeing a free-to-access but limited selection of the activity Altmetric has collected about this research output. Click here to find out more.
Title
A putative RA-like region in the brain of the scale-backed antbird, Willisornis poecilinotus (Furnariides, Suboscines, Passeriformes, Thamnophilidae)
Published in
Genetics and Molecular Biology, September 2015
DOI 10.1590/s1415-475738320150010
Pubmed ID
Authors

Jamily L.R. de Lima, Fabricio A. Soares, Ana C.S. Remedios, Gregory Thom, Morgan Wirthlin, Alexandre Aleixo, Maria Paula C. Schneider, Claudio V. Mello, Patricia N. Schneider

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.

Mendeley readers

The data shown below were compiled from readership statistics for 22 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Chile 1 5%
Unknown 21 95%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 6 27%
Student > Master 5 23%
Student > Bachelor 3 14%
Student > Doctoral Student 2 9%
Researcher 2 9%
Other 2 9%
Unknown 2 9%
Readers by discipline Count As %
Agricultural and Biological Sciences 9 41%
Neuroscience 4 18%
Biochemistry, Genetics and Molecular Biology 2 9%
Social Sciences 1 5%
Economics, Econometrics and Finance 1 5%
Other 0 0%
Unknown 5 23%