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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.)

Molecular phylogeny and hemipenial diversity of South American species of Amerotyphlops (Typhlopidae, Scolecophidia)

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Graboski, Roberta [1, 2, 3] ; Arredondo, Juan C. [1] ; Grazziotin, Felipe G. [4] ; da Silva, Ariane A. A. [5, 6] ; Prudente, Ana L. C. [5, 3] ; Rodrigues, Miguel T. [7] ; Bonatto, Sandro L. [8] ; Zaher, Hussam [1]
Total Authors: 8
[1] Univ Sao Paulo, Museu Zool, Sao Paulo - Brazil
[2] Univ Estadual Paulista, Programa Posgrad Zool, Rio Claro - Brazil
[3] Museu Paraense Emilio Goeldi, Lab Herpetol Coordenacao Zool, Belem, Para - Brazil
[4] Inst Butantan, Lab Colecoes Zool, Sao Paulo - Brazil
[5] Univ Fed Para, Programa Posgrad Zool, Belem, Para - Brazil
[6] Inst Nacl de Pesquisas da Amazonia, Programa Colecoes & Acervos Cient, Manaus, Amazonas - Brazil
[7] Univ Sao, Inst Biociencias, Dept Zool, Sao Paulo - Brazil
[8] Pontificia Univ Catolica Rio Grande do Sul, Escola Ciencias, Lab Biol Genom & Mol, Porto Alegre, RS - Brazil
Total Affiliations: 8
Document type: Journal article
Source: ZOOLOGICA SCRIPTA; v. 48, n. 2, p. 139-156, MAR 2019.
Web of Science Citations: 0

Typhlopidae is the most diverse family of Scolecophidia, with 269 species. Amerotyphlops was recently erected within subfamily Typhlopinae and comprises fifteen species distributed from Mexico to Argentina and the southern Lesser Antilles. Despite recent advances, affinities among typhlopines remain poorly explored, and the phylogenetic relationships and morphology of the South American (SA) species were never accessed before. Here, we performed a phylogenetic analysis including 106 species of Typhlopidae and ten genes. Our dataset represents the most comprehensive for SA species, containing seven of eight recognized species. Corroborating previous studies, we recovered the main groups of Typhlopoidea, and for typhlopines, we recovered with strong support two clades: (a) the Greater Antilles radiation, and the (b) Lesser Antilles and SA radiation. Within the SA radiation, we recovered four main lineages: (a) a clade formed by A. tasymicris and A. minuisquamus; (b) a clade composed by A. reticulatus as the sister group of all other SA species; (c) a clade composed by A. brongersmianus as the sister group of a clade comprising all Northeast Brazilian Species (NBS); and (d) a clade of the NBS, including A. yonenagae, A. arenensis, A. paucisquamus, and A. amoipira. We supplemented our phylogenetic result with the description of hemipenial morphology for seven SA species and comment their relevance to the systematics of Typhlopinae. Hemipenes of SA Amerotyphlops follow the general pattern in scolecophidians (single organ with undivided sulcus). Only A. reticulatus and A. minuisquamus have organs with calcified spines. According to our results, hemipenial ornamentation have shown highly informative and could represent a potential source of systematic and taxonomic characters in that group. We also present an extensive review of the geographical distribution for all SA species. Our study represents the first integrative analysis of a poorly known evolutionary radiation of one of the most widespread SA fossorial snakes. (AU)

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: 16/50127-5 - Dimensions US-BIOTA São Paulo: scales of biodiversity: integrated studies of snake venom evolution and function across multiple levels of diversity
Grantee:Inácio de Loiola Meirelles Junqueira de Azevedo
Support type: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 11/50206-9 - Origin and evolution of snakes and their diversification in the Neotropics: a multidisciplinary approach
Grantee:Hussam El Dine Zaher
Support type: BIOTA-FAPESP Program - Thematic Grants