Perineuronal nets in HVC and plasticity in male canary song.

Songbirds learn their vocalizations during developmental sensitive periods of song memorization and sensorimotor learning. Some seasonal songbirds, called open-ended learners, recapitulate transitions from sensorimotor learning and song crystallization on a seasonal basis during adulthood. In adult...

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Autores principales:	Gilles Cornez, Shelley Valle, Ednei Barros Dos Santos, Ioana Chiver, Wendt Müller, Gregory F Ball, Charlotte A Cornil, Jacques Balthazart
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/45989f90806e48cc91bd75a1ecb1d6b5
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spelling	oai:doaj.org-article:45989f90806e48cc91bd75a1ecb1d6b52021-12-02T20:17:31ZPerineuronal nets in HVC and plasticity in male canary song.1932-620310.1371/journal.pone.0252560https://doaj.org/article/45989f90806e48cc91bd75a1ecb1d6b52021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0252560https://doaj.org/toc/1932-6203Songbirds learn their vocalizations during developmental sensitive periods of song memorization and sensorimotor learning. Some seasonal songbirds, called open-ended learners, recapitulate transitions from sensorimotor learning and song crystallization on a seasonal basis during adulthood. In adult male canaries, sensorimotor learning occurs each year in autumn and leads to modifications of the syllable repertoire during successive breeding seasons. We previously showed that perineuronal nets (PNN) expression in song control nuclei decreases during this sensorimotor learning period. Here we explored the causal link between PNN expression in adult canaries and song modification by enzymatically degrading PNN in HVC, a key song control system nucleus. Three independent experiments identified limited effects of the PNN degradation in HVC on the song structure of male canaries. They clearly establish that presence of PNN in HVC is not required to maintain general features of crystallized song. Some suggestion was collected that PNN are implicated in the stability of song repertoires but this evidence is too preliminary to draw firm conclusions and additional investigations should consider producing PNN degradations at specified time points of the seasonal cycle. It also remains possible that once song has been crystallized at the beginning of the first breeding season, PNN no longer play a key role in determining song structure; this could be tested by treatments with chondroitinase ABC at key steps in ontogeny. It would in this context be important to develop multiple stereotaxic procedures allowing the simultaneous bilateral degradation of PNN in several song control nuclei for extended periods.Gilles CornezShelley ValleEdnei Barros Dos SantosIoana ChiverWendt MüllerGregory F BallCharlotte A CornilJacques BalthazartPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 8, p e0252560 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gilles Cornez Shelley Valle Ednei Barros Dos Santos Ioana Chiver Wendt Müller Gregory F Ball Charlotte A Cornil Jacques Balthazart Perineuronal nets in HVC and plasticity in male canary song.
description	Songbirds learn their vocalizations during developmental sensitive periods of song memorization and sensorimotor learning. Some seasonal songbirds, called open-ended learners, recapitulate transitions from sensorimotor learning and song crystallization on a seasonal basis during adulthood. In adult male canaries, sensorimotor learning occurs each year in autumn and leads to modifications of the syllable repertoire during successive breeding seasons. We previously showed that perineuronal nets (PNN) expression in song control nuclei decreases during this sensorimotor learning period. Here we explored the causal link between PNN expression in adult canaries and song modification by enzymatically degrading PNN in HVC, a key song control system nucleus. Three independent experiments identified limited effects of the PNN degradation in HVC on the song structure of male canaries. They clearly establish that presence of PNN in HVC is not required to maintain general features of crystallized song. Some suggestion was collected that PNN are implicated in the stability of song repertoires but this evidence is too preliminary to draw firm conclusions and additional investigations should consider producing PNN degradations at specified time points of the seasonal cycle. It also remains possible that once song has been crystallized at the beginning of the first breeding season, PNN no longer play a key role in determining song structure; this could be tested by treatments with chondroitinase ABC at key steps in ontogeny. It would in this context be important to develop multiple stereotaxic procedures allowing the simultaneous bilateral degradation of PNN in several song control nuclei for extended periods.
format	article
author	Gilles Cornez Shelley Valle Ednei Barros Dos Santos Ioana Chiver Wendt Müller Gregory F Ball Charlotte A Cornil Jacques Balthazart
author_facet	Gilles Cornez Shelley Valle Ednei Barros Dos Santos Ioana Chiver Wendt Müller Gregory F Ball Charlotte A Cornil Jacques Balthazart
author_sort	Gilles Cornez
title	Perineuronal nets in HVC and plasticity in male canary song.
title_short	Perineuronal nets in HVC and plasticity in male canary song.
title_full	Perineuronal nets in HVC and plasticity in male canary song.
title_fullStr	Perineuronal nets in HVC and plasticity in male canary song.
title_full_unstemmed	Perineuronal nets in HVC and plasticity in male canary song.
title_sort	perineuronal nets in hvc and plasticity in male canary song.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/45989f90806e48cc91bd75a1ecb1d6b5
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Perineuronal nets in HVC and plasticity in male canary song.

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