Number of the records: 1
Anguimorpha as a model group for studying the comparative heart morphology among Lepidosauria: Evolutionary window on the ventricular septation
- 1.
SYSNO ASEP 0564296 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Anguimorpha as a model group for studying the comparative heart morphology among Lepidosauria: Evolutionary window on the ventricular septation Author(s) Gregorovičová, M. (CZ)
Bartoš, M. (CZ)
Jensen, B. (NL)
Janáček, Jiří (FGU-C) RID, ORCID
Minne, B. (BE)
Moravec, J. (CZ)
Sedmera, David (FGU-C) RID, ORCID, SAIArticle number e9476 Source Title Ecology and Evolution. - : Wiley - ISSN 2045-7758
Roč. 12, č. 11 (2022)Number of pages 15 s. Language eng - English Country US - United States Keywords evolutionary traits ; Lanthanotus ; Salvator ; septation ; Sphenodon ; Varanus ; ventricle OECD category Developmental biology R&D Projects LM2018129 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FGU-C - RVO:67985823 UT WOS 000879927000001 EID SCOPUS 85142869232 DOI 10.1002/ece3.9476 Annotation The group Anguimorpha represents one of the most unified squamate clades in terms of body plan, ecomorphology, ecophysiology and evolution. On the other hand, the anguimorphs vary between different habitats and ecological niches. Therefore, we focused on the group Anguimorpha to test a possible correlation between heart morphology and ecological niche with respect to phylogenetic position in Squamata with Sphenodon, Salvator, and Pogona as the outgroups. The chosen lepidosaurian species were investigated by microCT. Generally, all lepidosaurs had two well-developed atria with complete interatrial septum and one ventricle divided by ventricular septa to three different areas. The ventricles of all lepidosaurians had a compact layer and abundant trabeculae. The compact layer and trabeculae were developed in accordance with particular ecological niche of the species, the trabeculae in nocturnal animals with low metabolism, such as Sphenodon, Heloderma or Lanthanotus were more massive. On the other hand athletic animals, such as varanids or Salvator, had ventricle compartmentalization divided by three incomplete septa. A difference between varanids and Salvator was found in compact layer thickness: thicker in monitor lizards and possibly linked to their mammalian-like high blood pressure, and the level of ventricular septation. In summary: heart morphology varied among clades in connection with the ecological niche of particular species and it reflects the phylogenetic position in model clade Anguimorpha. In the absence of fossil evidence, this is the closest approach how to understand heart evolution and septation in clade with different cardiac compartmentalization levels. Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2023 Electronic address https://doi.org/10.1002/ece3.9476
Number of the records: 1