Show simple item record Pereira, Anieli G. Abdala, Virginia Sara Luz Kohlsdorf, Tiana 2017-10-11T21:18:35Z 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.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.subject Fiber types
dc.subject Function
dc.subject Position
dc.subject Squamata
dc.subject.classification Bioquímica y Biología Molecular
dc.subject.classification 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 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/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Atribución-NoComercial-SinDerivadas 2.5 Argentina (CC BY-NC-ND 2.5 AR)