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Phylogeny and evolution of the Tropidurus of the torquatus group (Squamata: Tropiduridae)

Grant number: 10/16735-1
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): February 01, 2011
Effective date (End): September 30, 2014
Field of knowledge:Biological Sciences - Zoology - Taxonomy of Recent Groups
Principal researcher:Miguel Trefaut Urbano Rodrigues
Grantee:Marco Aurélio de Sena
Home Institution: Instituto de Biociências (IB). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The lizards of the Tropidurus torquatus group are a specious lineage consists of predominantly saxicol forms, but with psamophilous species and species with saxicolous and psamophilous populations. Phylogenies available do not show good geographical coverage of psamophilous forms and indicate that may have occurred the independent emergence of strains that occupy sandy environments. This project aims to determine whether there has been independent occupation sandy environments by saxicol forms, using as a working hypothesis that the occupation of sandy environments is a synapomorphy of psamophilous lineages. Additionally, it is intended, using a more complete molecular and morphological sampling, a more robust phylogenetic relationship permitting testing of hypotheses proposed by phylogenies available. Based on this phylogenetic hypothesis we hope to better understand the origin and differentiation of landscapes covered by sandy soils in South America cisandina. It is intended to further clarify the taxonomic uncertainty hanging over some populations of Tropidurus torquatus group, describing them if this recommendation proposed by the results. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
CARVALHO, ANDRE L. G.; SENA, MARCO A.; PELOSO, PEDRO L. V.; MACHADO, FABIO A.; MONTESINOS, RACHEL; SILVA, HELIO R.; CAMPBELL, GWYNETH; RODRIGUES, MIGUEL T.. A new Tropidurus (Tropiduridae) from the semiarid Brazilian Caatinga: evidence for conflicting signal between mitochondrial and nuclear loci affecting the phylogenetic reconstruction of South American collared lizards. American Museum Novitates, n. 3852, p. 1-66, . (12/22566-3, 13/22042-7, 10/16735-1)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SENA, Marco Aurélio de. Phylogeny and evolution of Tropidurus of the torquatus group (Squamata: Tropiduridae). 2015. Doctoral Thesis - Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) São Paulo.

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