Busca avançada
Ano de início
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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]
Número total de Autores: 8
Afiliação do(s) autor(es):
[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
Número total de Afiliações: 6
Tipo de documento: Artigo Científico
Fonte: American Museum Novitates; n. 3852, p. 1-66, FEB 20 2016.
Citações Web of Science: 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)

Processo FAPESP: 13/22042-7 - Restrições evolutivas no crânio de Caniformes (Carnivora)
Beneficiário:Fábio de Andrade Machado
Linha de fomento: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
Processo FAPESP: 10/16735-1 - Filogenia e evolução dos Tropidurus do grupo torquatus (Squamata: Tropiduridae)
Beneficiário:Marco Aurélio de Sena
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 12/22566-3 - Sistemática filogenética de Hylodidae Günther 1858(Amphibia: Anura)
Beneficiário:Rachel Montesinos Martins Pereira
Linha de fomento: Bolsas no Brasil - Doutorado