Sexual dimorphism in histological characteristics and contractility of the iliofibularis muscle in the lizard Sceloporus torquatus

dc.creatorQUINTANA SANCHEZ, ERENDIRA; 226935
dc.creatorMANJARREZ SILVA, FRANCISCO JAVIER; 79434
dc.creatorMARTINEZ GOMEZ, MARGARITA; 9905
dc.creatorD'Alba, Liliana;#0000-0002-2478-3455
dc.creatorRODRIGUEZ ANTOLIN, JORGE; 36484
dc.creatorFAJARDO GUADARRAMA, VICTOR MANUEL; 38438
dc.creatorQUINTANA SANCHEZ, ERENDIRA
dc.creatorMANJARREZ SILVA, FRANCISCO JAVIER
dc.creatorMARTINEZ GOMEZ, MARGARITA
dc.creatorD'Alba, Liliana
dc.creatorRODRIGUEZ ANTOLIN, JORGE
dc.creatorFAJARDO GUADARRAMA, VICTOR MANUEL
dc.date2017-02-23T02:01:55Z
dc.date2017-02-23T02:01:55Z
dc.date2014
dc.date.accessioned2022-10-12T22:55:19Z
dc.date.available2022-10-12T22:55:19Z
dc.identifierhttp://hdl.handle.net/20.500.11799/64875
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4149472
dc.descriptionThe iliofibularis is a hindlimb muscle used in lizard locomotion that is composed of at least three types of fibres: fast-twitch-glycolytic (FG), fast-twitch-oxidativeglycolytic fibre (FOG) and slow-twitch-oxidative (SO). The striated skeletalmuscle is a highly plastic tissue undergoing phenotypic change in response to activity. The lizard Sceloporus torquatus has sexual differences associated with microhabitat use, which can be reflected in the physiology and anatomy of the muscle, and thus, in our study, we analysed the morphological and contractile characteristics of the iliofibularis muscle (IF) of S. torquatus males and females. We found a larger prevalence of FOG compared with FG and SO fibres in the muscle of both sexes. We also found that males show larger areas of the three types of fibres, develop greater strength but also faster fatigue than females, suggesting that strength is a key functional feature that enables males to perform faster movements (but for shorter periods), associated with the demands of territoriality.
dc.languageeng
dc.relation95;
dc.rightsopenAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectSceloporus torquatus lizard
dc.subjectsexual dimorphism
dc.subjectStriated muscle
dc.subjecthistology
dc.subjectcontractility
dc.subjectBIOLOGÍA Y QUÍMICA
dc.titleSexual dimorphism in histological characteristics and contractility of the iliofibularis muscle in the lizard Sceloporus torquatus
dc.typeArtículo
dc.typearticle


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