Spiny-backed tree frogs of the genus Osteocephalus are conspicuous components of the tropical wet forests of the Amazon and the Guiana Shield. Here, we revise the phylogenetic relationships of Osteocephalus and its sister group Tepuihyla, using up to 6134 bp of DNA sequences of nine mitochondrial and one nuclear gene for 338 specimens from eight countries and 218 localities, representing 89% of the 28 currently recognized nominal species. Our phylogenetic analyses reveal (i) the paraphyly of Osteocephalus with respect to Tepuihyla, (ii) the placement of 'Hyla' warreni as sister to Tepuihyla, (iii) the non-monophyly of several currently recognized species within Osteocephalus and (iv) the presence of low (<1%) and overlapping genetic distances among phenotypically well-characterized nominal species (e.g. O. taurinus and O. oophagus) for the 16S gene fragment used in amphibian DNA barcoding. We propose a new taxonomy, securing the monophyly of Osteocephalus and Tepuihyla by rearranging and redefining the content of both genera and also erect a new genus for the sister group of Osteocephalus. The colouration of newly metamorphosed individuals is proposed as a morphological synapomorphy for Osteocephalus. We recognize and define five monophyletic species groups within Osteocephalus, synonymize three species of Osteocephalus (O. germani, O. phasmatus and O. vilmae) and three species of Tepuihyla (T. celsae, T. galani and T. talbergae) and reallocate three species (Hyla helenae to Osteocephalus, O. exophthalmus to Tepuihyla and O. pearsoni to Dryaderces gen. n.). Furthermore, we flag nine putative new species (an increase to 138% of the current diversity). We conclude that species numbers are largely underestimated, with most hidden diversity centred on widespread and polymorphic nominal species. The evolutionary origin of breeding strategies within Osteocephalus is discussed in the light of this new phylogenetic hypothesis, and a novel type of amplexus (gular amplexus) is described. © 2013 The Norwegian Academy of Science and Letters.
Documento: | Artículo |
Título: | Systematics of spiny-backed treefrogs (Hylidae: Osteocephalus): An Amazonian puzzle |
Autor: | Jungfer, K.-H.; Faivovich, J.; Padial, J.M.; Castroviejo-Fisher, S.; Lyra, M.M.; V. M. Berneck, B.; Iglesias, P.P.; Kok, P.J.R.; Macculloch, R.D.; Rodrigues, M.T.; Verdade, V.K.; Torres Gastello, C.P.; Chaparro, J.C.; Valdujo, P.H.; Reichle, S.; Moravec, J.; Gvoždík, V.; Gagliardi-Urrutia, G.; Ernst, R.; De la Riva, I.; Means, D.B.; Lima, A.P.; Señaris, J.C.; Wheeler, W.C.; F. B. Haddad, C. |
Filiación: | División Herpetología, Museo Argentino de Ciencias Naturales 'Bernardino Rivadavia'-CONICET, Angel Gallardo 470, Buenos Aires, C1405DJR, Argentina Departamento de Biodiversidad y Biologia Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina Section of Amphibians and Reptiles, Carnegie Museum of Natural History, 4400 Forbes Avenue, Pittsburgh, PA, 15213-4080, United States Department of Herpetology, American Museum of Natural History, Central Park West at 79th Street, New York, NY, 10024-5192, United States Laboratorio de Sistemática de Vertebrados, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, RS, Brazil Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, Av. 24A 1515, Rio Claro, São Paulo, CEP 13506-900, Brazil Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Instituto de Ecología, Genética y Evolución de Buenos Aires, IEGEBA-CONICET, Ciudad Universitaria Pab. II, Buenos Aires, C1428EHA, Argentina Amphibian Evolution Lab, Department of Biology, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, B-1050, Belgium Department of Vertebrates, Royal Belgian Institute of Natural Sciences, rue Vautier 29, Brussels, B-1000, Belgium Department of Natural History, Royal Ontario Museum, 100 Queens Park, Toronto, ON, M5S 2C6, Canada Departamento de Zoologia, Instituto de Biociências, Universidade de São Paulo, Caixa Postal 11461, São Paulo, CEP 05508-090, Brazil Centro de Ciências Naturais e Humanas, Universidade Federal do ABC, Av. dos Estados, Santo André, São Paulo, 5001 CEP 09210-971, Brazil Departamento de Herpetología, Museo de Historia Natural de la Universidad Nacional Mayor de San Marcos, Av. Arenales 1256, Lima 14, Apto. 14-0434, Peru Museo de Historia Natural, Universidad Nacional de San Antonio Abad del Cusco, Cusco, Peru Departamento de Ecologia, Instituto de Biociências, Universidade de São Paulo, Rua do Matão, travessa 14, São Paulo, SP, 05508-900, Brazil Fundación para la Conservación del Bosque Chiquitano, Av. Ejército Nacional No 160, Santa Cruz de la Sierra, Bolivia Department of Zoology, National Museum, Prague 9, Czech Republic Programa de Investigación en Biodiversidad Amazónica, Instituto de Investigaciones de la Amazonia Peruana, Av. Quiñonez Km 2.5, Iquitos, Peru Museum für Tierkunde, Senckenberg Natural History Collections Dresden, Königsbrücker Landstr. 159, Dresden, D-01109, Germany Department of Biodiversity and Evolutionary Biology, Museo Nacional de Ciencias Naturales-CSIC, C/José Gutiérrez Abascal 2, Madrid, 28006, Spain Coastal Plains Institute and Land Conservancy, 1313 Milton Street, Tallahassee, FL, 32303, United States Instituto Nacional de Pesquisas da Amazônia, Caixa Postal 478, Manaus, Amazonas, CEP 69011-970, Brazil Laboratorio de Ecología y Genética de Poblaciones, Centro de Ecología, Instituto Venezolano de Investigaciones Científicas, Apartado 21827, Caracas, 1020-A, Venezuela Division of Invertebrate Zoology, American Museum of Natural History, Central Park West at 79th Street, New York, NY, 10024-5192, United States |
Palabras clave: | Amphibia; Anura; Hyla; Hylidae; Osteocephalus; Osteocephalus oophagus; Osteocephalus taurinus; Tepuihyla |
Año: | 2013 |
Volumen: | 42 |
Número: | 4 |
Página de inicio: | 351 |
Página de fin: | 380 |
DOI: | http://dx.doi.org/10.1111/zsc.12015 |
Título revista: | Zoologica Scripta |
Título revista abreviado: | Zool. Scr. |
ISSN: | 03003256 |
CODEN: | ZLSCA |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03003256_v42_n4_p351_Jungfer |