Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes

Autores
Pereira, Anieli G.; Abdala, Virginia Sara Luz; Kohlsdorf, Tiana
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Skeletal muscles can be classified as flexors or extensors according to their function, and as dorsal or ventral according to their position. The latter classification evokes their embryological origin from muscle masses initially divided during limb development, and muscles sharing a given position do not necessarily perform the same function. Here, we compare the relative proportions of different fiber types among six limb muscles in the lizard Tropidurus psammonastes. Individual fibers were classified as slow oxidative (SO), fast glycolytic (FG) or fast oxidative-glycolytic (FOG) based on mitochondrial content; muscles were classified according to position and function. Mixed linear models considering one or both effects were compared using likelihood ratio tests. Variation in the proportion of FG and FOG fibers is mainly explained by function (flexor muscles have on average lower proportions of FG and higher proportions of FOG fibers), while variation in SO fibers is better explained by position (they are less abundant in ventral muscles than in those developed from a dorsal muscle mass). Our results clarify the roles of position and function in determining the relative proportions of the various muscle fibers and provide evidence that these factors may differentially affect distinct fiber types.
Fil: Pereira, Anieli G.. Universidade de Sao Paulo; Brasil
Fil: Abdala, Virginia Sara Luz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto de Biodiversidad Neotropical. Universidad Nacional de Tucuman. Facultad de Cs.naturales E Instituto Miguel Lillo. Instituto de Biodiversidad Neotropical. Instituto de Biodiversidad Neotropical; Argentina
Fil: Kohlsdorf, Tiana. Universidade de Sao Paulo; Brasil
Materia
Fiber Types
Function
Position
Squamata
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/26467
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastesPereira, Anieli G.Abdala, Virginia Sara LuzKohlsdorf, TianaFiber TypesFunctionPositionSquamatahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Skeletal muscles can be classified as flexors or extensors according to their function, and as dorsal or ventral according to their position. The latter classification evokes their embryological origin from muscle masses initially divided during limb development, and muscles sharing a given position do not necessarily perform the same function. Here, we compare the relative proportions of different fiber types among six limb muscles in the lizard Tropidurus psammonastes. Individual fibers were classified as slow oxidative (SO), fast glycolytic (FG) or fast oxidative-glycolytic (FOG) based on mitochondrial content; muscles were classified according to position and function. Mixed linear models considering one or both effects were compared using likelihood ratio tests. Variation in the proportion of FG and FOG fibers is mainly explained by function (flexor muscles have on average lower proportions of FG and higher proportions of FOG fibers), while variation in SO fibers is better explained by position (they are less abundant in ventral muscles than in those developed from a dorsal muscle mass). Our results clarify the roles of position and function in determining the relative proportions of the various muscle fibers and provide evidence that these factors may differentially affect distinct fiber types.Fil: Pereira, Anieli G.. Universidade de Sao Paulo; BrasilFil: Abdala, Virginia Sara Luz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto de Biodiversidad Neotropical. Universidad Nacional de Tucuman. Facultad de Cs.naturales E Instituto Miguel Lillo. Instituto de Biodiversidad Neotropical. Instituto de Biodiversidad Neotropical; ArgentinaFil: Kohlsdorf, Tiana. Universidade de Sao Paulo; BrasilElsevier Gmbh2014-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/26467Pereira, Anieli G.; Abdala, Virginia Sara Luz; Kohlsdorf, Tiana; Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes; Elsevier Gmbh; Zoology; 118; 1; 10-2014; 27-330944-2006CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.zool.2014.09.001info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0944200614000944info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:07:20Zoai:ri.conicet.gov.ar:11336/26467instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-10 13:07:21.234CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
title Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
spellingShingle Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
Pereira, Anieli G.
Fiber Types
Function
Position
Squamata
title_short Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
title_full Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
title_fullStr Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
title_full_unstemmed Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
title_sort Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
dc.creator.none.fl_str_mv Pereira, Anieli G.
Abdala, Virginia Sara Luz
Kohlsdorf, Tiana
author Pereira, Anieli G.
author_facet Pereira, Anieli G.
Abdala, Virginia Sara Luz
Kohlsdorf, Tiana
author_role author
author2 Abdala, Virginia Sara Luz
Kohlsdorf, Tiana
author2_role author
author
dc.subject.none.fl_str_mv Fiber Types
Function
Position
Squamata
topic Fiber Types
Function
Position
Squamata
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Skeletal muscles can be classified as flexors or extensors according to their function, and as dorsal or ventral according to their position. The latter classification evokes their embryological origin from muscle masses initially divided during limb development, and muscles sharing a given position do not necessarily perform the same function. Here, we compare the relative proportions of different fiber types among six limb muscles in the lizard Tropidurus psammonastes. Individual fibers were classified as slow oxidative (SO), fast glycolytic (FG) or fast oxidative-glycolytic (FOG) based on mitochondrial content; muscles were classified according to position and function. Mixed linear models considering one or both effects were compared using likelihood ratio tests. Variation in the proportion of FG and FOG fibers is mainly explained by function (flexor muscles have on average lower proportions of FG and higher proportions of FOG fibers), while variation in SO fibers is better explained by position (they are less abundant in ventral muscles than in those developed from a dorsal muscle mass). Our results clarify the roles of position and function in determining the relative proportions of the various muscle fibers and provide evidence that these factors may differentially affect distinct fiber types.
Fil: Pereira, Anieli G.. Universidade de Sao Paulo; Brasil
Fil: Abdala, Virginia Sara Luz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Instituto de Biodiversidad Neotropical. Universidad Nacional de Tucuman. Facultad de Cs.naturales E Instituto Miguel Lillo. Instituto de Biodiversidad Neotropical. Instituto de Biodiversidad Neotropical; Argentina
Fil: Kohlsdorf, Tiana. Universidade de Sao Paulo; Brasil
description Skeletal muscles can be classified as flexors or extensors according to their function, and as dorsal or ventral according to their position. The latter classification evokes their embryological origin from muscle masses initially divided during limb development, and muscles sharing a given position do not necessarily perform the same function. Here, we compare the relative proportions of different fiber types among six limb muscles in the lizard Tropidurus psammonastes. Individual fibers were classified as slow oxidative (SO), fast glycolytic (FG) or fast oxidative-glycolytic (FOG) based on mitochondrial content; muscles were classified according to position and function. Mixed linear models considering one or both effects were compared using likelihood ratio tests. Variation in the proportion of FG and FOG fibers is mainly explained by function (flexor muscles have on average lower proportions of FG and higher proportions of FOG fibers), while variation in SO fibers is better explained by position (they are less abundant in ventral muscles than in those developed from a dorsal muscle mass). Our results clarify the roles of position and function in determining the relative proportions of the various muscle fibers and provide evidence that these factors may differentially affect distinct fiber types.
publishDate 2014
dc.date.none.fl_str_mv 2014-10
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/26467
Pereira, Anieli G.; Abdala, Virginia Sara Luz; Kohlsdorf, Tiana; Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes; Elsevier Gmbh; Zoology; 118; 1; 10-2014; 27-33
0944-2006
CONICET Digital
CONICET
url http://hdl.handle.net/11336/26467
identifier_str_mv Pereira, Anieli G.; Abdala, Virginia Sara Luz; Kohlsdorf, Tiana; Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes; Elsevier Gmbh; Zoology; 118; 1; 10-2014; 27-33
0944-2006
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.zool.2014.09.001
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0944200614000944
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Gmbh
publisher.none.fl_str_mv Elsevier Gmbh
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.993085

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