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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

Carvalho, Andre L. G. [1, 2] ; Sena, Marco A. [3] ; Peloso, Pedro L. V. [1, 4] ; Machado, Fabio A. [5] ; Montesinos, Rachel [3] ; Silva, Helio R. [6] ; Campbell, Gwyneth [1] ; Rodrigues, Miguel T. [3]
Total Authors: 8
[1] Amer Museum Nat Hist, Div Vertebrate Zool Herpetol, New York, NY 10024 - USA
[2] Amer Museum Nat Hist, Richard Gilder Grad Sch, New York, NY 10024 - USA
[3] Univ Sao Paulo, Inst Biociencias, Dept Zool, Sao Paulo - Brazil
[4] Museu Paraense Emilio Goeldi, Coordenacao Zool, Belem, Para - Brazil
[5] Univ Sao Paulo, Inst Biociencias, Dept Genet & Biol Evolut, Sao Paulo - Brazil
[6] Univ Fed Rural Rio de Janeiro, Inst Biol, Dept Biol Anim, Rio De Janeiro - Brazil
Total Affiliations: 6
Document type: Journal article
Source: American Museum Novitates; n. 3852, p. 1-66, FEB 20 2016.
Web of Science Citations: 7

Tropidurus Wied, 1825, is one of the most ubiquitous lizard genera distributed in open habitats of tropical and subtropical South America. Nevertheless, the broad representation of specimens of this group in scientific collections is hardly reflected in our knowledge of its taxonomic diversity. Most species currently assigned to Tropidurus began to be uncovered in the early 1980's and additional populations in need of formal taxonomic treatment have been cataloged ever since. Herein, we name Tropidurus sertanejo, n. sp., a new species of the T torquatus group endemic to the semiarid Brazilian Caatinga. Tropidurus sertanejo, n. sp., is currently known from two isolated populations in the municipalities of Caetite and Ibotirama, State of Bahia, Brazil. This is the only species of the T torquatus group lacking granular mite pockets on the lateral neck, and it is also diagnosable by having a conspicuous bronze-colored head, a light-brown dorsal body with small pale salmon spots, and small body size in comparison with most congeners. Phylogenetic analyses recovered a paraphyletic Tropidurus, but firmly supported T sertanejo, n. sp., as member of a monophyletic T torquatus species group. Trees generated by independent analyses of nuclear and mitochondrial sequence data conflicted with our total evidence phylogenetic hypotheses. Since topological disagreements were detected among phylogenetic trees resulting from maximum parsimony (MP) and maximum likelihood (ML) reconstructions, and MP analyses do not require distinct evolutionary models or partition schemes to be defined prior to conduction of phylogenetic reconstruction, these factors were considered unlikely to explain all the variation in the observed results, favoring the interpretation of conflicting phylogenetic signal. Because detailed information on the distribution, population size, and ecological requirements of T sertanejo, n. sp., are currently unavailable, we recommend the species to be listed as ``data deficient{''} following the rules proposed by IUCN. (AU)

FAPESP's process: 12/22566-3 - Phylogenetic Systematics of Hylodidae Gunther 1858 (Amphibia: Anura)
Grantee:Rachel Montesinos Martins Pereira
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 10/16735-1 - Phylogeny and evolution of the Tropidurus of the torquatus group (Squamata: Tropiduridae)
Grantee:Marco Aurélio de Sena
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 13/22042-7 - Evolutionary restrictions in the skull of Caniforms (Carnivora)
Grantee:Fábio de Andrade Machado
Support type: Scholarships abroad - Research Internship - Doctorate