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dc.contributor.author
Pereira, Anieli G.
dc.contributor.author
Abdala, Virginia Sara Luz
dc.contributor.author
Kohlsdorf, Tiana
dc.date.available
2017-10-11T21:18:35Z
dc.date.issued
2014-10
dc.identifier.citation
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
dc.identifier.issn
0944-2006
dc.identifier.uri
http://hdl.handle.net/11336/26467
dc.description.abstract
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.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Gmbh
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.subject
Fiber Types
dc.subject
Function
dc.subject
Position
dc.subject
Squamata
dc.subject.classification
Bioquímica y Biología Molecular
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Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Function and position determine relative proportions of different fiber types in limb muscles of the lizard Tropidurus psammonastes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-28T16:31:14Z
dc.journal.volume
118
dc.journal.number
1
dc.journal.pagination
27-33
dc.journal.pais
Alemania
dc.description.fil
Fil: Pereira, Anieli G.. Universidade de Sao Paulo; Brasil
dc.description.fil
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
dc.description.fil
Fil: Kohlsdorf, Tiana. Universidade de Sao Paulo; Brasil
dc.journal.title
Zoology
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.zool.2014.09.001
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0944200614000944


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