Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight

The Weberian apparatus is essentially a mechanical device improving audition, consisting of a double chain of ossicles joining the air bladder to the inner ear. Despite being one of the most notable complex systems of teleost fishes and the subject of several comparative, developmental and functiona...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Diogo,Rui
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2009
Materias:	Evolution Functional anatomy Ostariophysi Otocephala Otophysi Phylogeny Teleostei Weberian apparatus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200008
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:scielo:S0717-95022009000200008
record_format	dspace
spelling	oai:scielo:S0717-950220090002000082009-09-10Origin, Evolution and Homologies of the Weberian Apparatus: A New InsightDiogo,Rui Evolution Functional anatomy Ostariophysi Otocephala Otophysi Phylogeny Teleostei Weberian apparatus The Weberian apparatus is essentially a mechanical device improving audition, consisting of a double chain of ossicles joining the air bladder to the inner ear. Despite being one of the most notable complex systems of teleost fishes and the subject of several comparative, developmental and functional studies, there is still much controversy concerning the origin, evolution and homologies of the structures forming this apparatus. In this paper I provide a new insight on these topics, which takes into account the results of recent works on comparative anatomy, paleontology, and ontogeny as well as of a recent extensive phylogenetic analysis including not only numerous otophysan and non-otophysan extant otocephalans but also ostariophysan fossils such as Chanoides macropoma, Clupavus maroccanus, Santanichthys diasii, Lusitanichthys characiformis, Sorbininardus apuliensis and Tischlingerichthys viohli. According to the evidence now available, the Weberian apparatus of otophysans seems to be the outcome of a functional integration of features acquired in basal otocephalans and in basal ostariophysans, which were very likely not directly related with the functioning of this apparatus, and of features acquired in the nodes leading to the Otophysi and to the clade including the four extant otophysan orders, which could well have been the result of a selection directly related to the functioning of the apparatus.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.27 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200008en10.4067/S0717-95022009000200008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Evolution Functional anatomy Ostariophysi Otocephala Otophysi Phylogeny Teleostei Weberian apparatus
spellingShingle	Evolution Functional anatomy Ostariophysi Otocephala Otophysi Phylogeny Teleostei Weberian apparatus Diogo,Rui Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight
description	The Weberian apparatus is essentially a mechanical device improving audition, consisting of a double chain of ossicles joining the air bladder to the inner ear. Despite being one of the most notable complex systems of teleost fishes and the subject of several comparative, developmental and functional studies, there is still much controversy concerning the origin, evolution and homologies of the structures forming this apparatus. In this paper I provide a new insight on these topics, which takes into account the results of recent works on comparative anatomy, paleontology, and ontogeny as well as of a recent extensive phylogenetic analysis including not only numerous otophysan and non-otophysan extant otocephalans but also ostariophysan fossils such as Chanoides macropoma, Clupavus maroccanus, Santanichthys diasii, Lusitanichthys characiformis, Sorbininardus apuliensis and Tischlingerichthys viohli. According to the evidence now available, the Weberian apparatus of otophysans seems to be the outcome of a functional integration of features acquired in basal otocephalans and in basal ostariophysans, which were very likely not directly related with the functioning of this apparatus, and of features acquired in the nodes leading to the Otophysi and to the clade including the four extant otophysan orders, which could well have been the result of a selection directly related to the functioning of the apparatus.
author	Diogo,Rui
author_facet	Diogo,Rui
author_sort	Diogo,Rui
title	Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight
title_short	Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight
title_full	Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight
title_fullStr	Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight
title_full_unstemmed	Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight
title_sort	origin, evolution and homologies of the weberian apparatus: a new insight
publisher	Sociedad Chilena de Anatomía
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200008
work_keys_str_mv	AT diogorui originevolutionandhomologiesoftheweberianapparatusanewinsight
_version_	1718444652942589952

Origin, Evolution and Homologies of the Weberian Apparatus: A New Insight

Ejemplares similares