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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.)

Geographic variation and taxonomy of red-tailed Gymnophthalmus (Squamata: Gymnophthalmidae) from Amazonian Savannas

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Recoder, Renato Sousa [1] ; Dal Vechio, Francisco [1] ; Marques-Souza, Sergio [1] ; Teixeira, Jr., Mauro [1] ; Silva-Da-Silva, Maiume [2] ; Santos, Jr., Alfredo P. [2] ; Ribeiro, Siria [2] ; Barrio-Amoros, Cesar [3] ; Rodrigues, Miguel Trefaut [1]
Total Authors: 9
[1] Univ Sao Paulo, Lab Herpetol, Dept Zool, Inst Biociencias, Rua Matao, Trav 14, 321 Cidade Univ, BR-05508090 Sao Paulo - Brazil
[2] Univ Fed Oeste Para, Inst Ciencias Educ, Lab Ecol & Comportamento Anim, Rua Vera Paz S-N, BR-68035110 Santarem, Para - Brazil
[3] Doc Frog Expedit, Uvita - Costa Rica
Total Affiliations: 3
Document type: Journal article
Source: Zootaxa; v. 4497, n. 1, p. 61-81, OCT 8 2018.
Web of Science Citations: 1

Gymnophthalmus represents a challenging group for systematics of microteiid lizards. Due to scarcity of exemplars and molecular data, the taxonomy of the genus has been unstable, and six of its eight species are considered part of a poorly-delimited complex of unisexual and bisexual species. Unnamed populations of red-tailed Gymnophthalmus from savanna enclaves in Amazon, similar to G. vanzoi but with differences in color pattern, have been noted in the literature. Here, we used molecular and morphological data to test the taxonomic status of the Central Amazonian red-tailed Gymnophthalmus (G. sp.). Our molecular analysis recovered a close relationship between G. vanzoi and G. sp. from Central Amazon, with minimal divergence. Samples were similar in scale counts but presented significant variation in color pattern and morphometry. Despite the geographic isolation, individuals of both populations cannot be fully differentiated based on morphology. Thus, our results suggest that G. vanzoi has a wider distribution, including the Central Amazonian red-tailed Gymnophthalmus and likely morphologically similar populations from other enclaves of Amazonian savannas, which may have been isolated recently. Based on our comparative analysis, we highlight some characters proved useful for differentiating Brazilian Gymnophthalmus and discuss some prospects for the taxonomy of the genus. (AU)

FAPESP's process: 13/50297-0 - Dimensions US-BIOTA São Paulo: a multidisciplinary framework for biodiversity prediction in the Brazilian Atlantic forest hotspot
Grantee:Cristina Yumi Miyaki
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 03/10335-8 - Systematics and evolution of the herpetological fauna from Neotropical areas
Grantee:Miguel Trefaut Urbano Rodrigues
Support type: Research Projects - Thematic Grants
FAPESP's process: 12/09463-0 - Molecular differentiation and morphological variation in microteiid lizards of the tribe Iphisiini (Squamata, Gymnophthalmidae)
Grantee:Renato Sousa Recoder
Support type: Scholarships in Brazil - Doctorate
FAPESP's process: 17/08357-6 - Phylogenetic Endemism and Comparative Phylogeography of the Brazilian Amazon Herpetofauna
Grantee:Sérgio Marques de Souza
Support type: Scholarships in Brazil - Post-Doctorate