Amerotyphlops brongersmianus (Vanzolini, 1976) (Typhlopidae, Serpentes) as a model for scolecophidian ontogenetic shifts of heart topography and relative size

Martins, Angele dos Reis; Silva, Laryssa; Gonzalez, Rodrigo Castellari

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Campo DC	Valor	Idioma
dc.contributor.author	Martins, Angele dos Reis	-
dc.contributor.author	Silva, Laryssa	-
dc.contributor.author	Gonzalez, Rodrigo Castellari	-
dc.date.accessioned	2020-10-20T16:03:13Z	-
dc.date.available	2020-10-20T16:03:13Z	-
dc.date.issued	2020-06-07	-
dc.identifier.citation	MARTINS, Angele; SILVA, Laryssa; GONZALEZ, Rodrigo C. Amerotyphlops brongersmianus (Vanzolini, 1976) (Typhlopidae, Serpentes) as a model for scolecophidian ontogenetic shifts of heart topography and relative size. Zoomorphology, v. 139, p. 385-392, 2020. Disponível em: https://link.springer.com/article/10.1007%2Fs00435-020-00492-3.	pt_BR
dc.identifier.uri	https://repositorio.unb.br/handle/10482/39562	-
dc.language.iso	Inglês	pt_BR
dc.publisher	Springer Nature	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Amerotyphlops brongersmianus (Vanzolini, 1976) (Typhlopidae, Serpentes) as a model for scolecophidian ontogenetic shifts of heart topography and relative size	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Coração	pt_BR
dc.subject.keyword	Ontogenia	pt_BR
dc.subject.keyword	Cobra	pt_BR
dc.relation.publisherversion	https://link.springer.com/article/10.1007%2Fs00435-020-00492-3	pt_BR
dc.description.abstract1	Ontogenetic shifts in the snake heart topography are mostly associated with their life habits and physiological adaptations due to modifications of complex functional-adaptative and developmental constraints. However, such studies are incipient for scolecophidians, and the presence of shifts putatively related to physiological mechanisms are still unexplored for this group. We aimed to evaluate the presence of topological shifts in heart position and the allometry of heart/chambers total length in Amerotyphlops brongersmianus. Our results indicate that there is a craniad ontogenetic shift of the heart position related to total length increase. Heart total length and their chambers also grow isometrically in relation to head and total body length. We discuss the possible functional and evolutionary perspectives of our results with comparison to data available for alethinophidan snakes. We hypothesize the anterior displacement of organs possibly remains as an ancestral state to compensate reproductive constraints imposed by the ancestral scolecoid miniaturized body.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0002-0193-4011	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0001-7164-8363	pt_BR
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