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FALCIONE CAMILA, HERNANDO ALEJANDRA, BRESSA MARÍAJOSÉ. Comparative cytogenetic analysis in Erythrolamprus snakes (Serpentes: Dipsadidae) from Argentina. ACTA ACUST UNITED AC 2018; 90:1417-1429. [DOI: 10.1590/0001-3765201820170374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 10/09/2017] [Indexed: 11/22/2022]
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52
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Passos P, Ramos LO, Fouquet A, Prudente AL. Taxonomy, Morphology, and Distribution of Atractus flammigerus Boie 1827 (Serpentes: Dipsadidae). HERPETOLOGICA 2017. [DOI: 10.1655/herpetologica-d-16-00086] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Paulo Passos
- Departamento de Vertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, Rio de Janeiro, RJ 20940-040, Brazil
| | - Luciana O. Ramos
- Departamento de Vertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, Rio de Janeiro, RJ 20940-040, Brazil
| | - Antoine Fouquet
- CNRS LEEISA, Centre de Recherche de Montabo—IRD 275 Route de Montabo, BP 70620, 97334 Cayenne Cedex, French Guiana, France
| | - Ana L.C. Prudente
- Laboratório de Herpetologia, Coordenação de Zoologia, Museu Paraense Emílio Goeldi, CP 399, Belém, PA 66040-170, Brazil
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Torello-Viera NF, Marques OA. Daily Activity of Neotropical Dipsadid Snakes. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2017. [DOI: 10.2994/sajh-d-16-00023.1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Natália F. Torello-Viera
- Laboratório de Ecologia e Evolução, Instituto Butantan. Avenida Vital Brazil, 1500, CEP 05503-900, São Paulo, Brazil
| | - Otavio A.V. Marques
- Laboratório de Ecologia e Evolução, Instituto Butantan. Avenida Vital Brazil, 1500, CEP 05503-900, São Paulo, Brazil
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54
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Silva FRD, Provete DB, Gerassi LK, Bovo RP. What do Data from Fieldwork and Scientific Collections Tell us about Species Richness and Composition of Amphibians and Reptiles? SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2017. [DOI: 10.2994/sajh-d-16-00051.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Fernando R. da Silva
- Laboratório de Ecologia Teórica: Integrando Tempo, Biologia e Espaço, Departamento de Ciências Ambientais, Universidade Federal de São Carlos, campus Sorocaba, São Paulo, Brazil
| | - Diogo B. Provete
- Laboratório de Ecologia Teórica: Integrando Tempo, Biologia e Espaço, Departamento de Ciências Ambientais, Universidade Federal de São Carlos, campus Sorocaba, São Paulo, Brazil
- Gothenburg Global Biodiversity Centre, Box 461, SE-405 30, Göteborg, Sweden
| | - Leyla K. Gerassi
- Laboratório de Ecologia Teórica: Integrando Tempo, Biologia e Espaço, Departamento de Ciências Ambientais, Universidade Federal de São Carlos, campus Sorocaba, São Paulo, Brazil
| | - Rafael P. Bovo
- Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista “Júlio de Mesquita Filho”, campus Rio Claro, São Paulo, Brazil
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55
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Diversification in vipers: Phylogenetic relationships, time of divergence and shifts in speciation rates. Mol Phylogenet Evol 2016; 105:50-62. [DOI: 10.1016/j.ympev.2016.07.029] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2015] [Revised: 04/01/2016] [Accepted: 07/28/2016] [Indexed: 11/17/2022]
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56
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Passos P, Martins A, Pinto-Coelho D. Population Morphological Variation and Natural History ofAtractus potschi(Serpentes: Dipsadidae) in Northeastern Brazil. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2016. [DOI: 10.2994/sajh-d-16-00034.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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57
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Figueroa A, McKelvy AD, Grismer LL, Bell CD, Lailvaux SP. A Species-Level Phylogeny of Extant Snakes with Description of a New Colubrid Subfamily and Genus. PLoS One 2016; 11:e0161070. [PMID: 27603205 PMCID: PMC5014348 DOI: 10.1371/journal.pone.0161070] [Citation(s) in RCA: 159] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 07/28/2016] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND With over 3,500 species encompassing a diverse range of morphologies and ecologies, snakes make up 36% of squamate diversity. Despite several attempts at estimating higher-level snake relationships and numerous assessments of generic- or species-level phylogenies, a large-scale species-level phylogeny solely focusing on snakes has not been completed. Here, we provide the largest-yet estimate of the snake tree of life using maximum likelihood on a supermatrix of 1745 taxa (1652 snake species + 7 outgroup taxa) and 9,523 base pairs from 10 loci (5 nuclear, 5 mitochondrial), including previously unsequenced genera (2) and species (61). RESULTS Increased taxon sampling resulted in a phylogeny with a new higher-level topology and corroborate many lower-level relationships, strengthened by high nodal support values (> 85%) down to the species level (73.69% of nodes). Although the majority of families and subfamilies were strongly supported as monophyletic with > 88% support values, some families and numerous genera were paraphyletic, primarily due to limited taxon and loci sampling leading to a sparse supermatrix and minimal sequence overlap between some closely-related taxa. With all rogue taxa and incertae sedis species eliminated, higher-level relationships and support values remained relatively unchanged, except in five problematic clades. CONCLUSION Our analyses resulted in new topologies at higher- and lower-levels; resolved several previous topological issues; established novel paraphyletic affiliations; designated a new subfamily, Ahaetuliinae, for the genera Ahaetulla, Chrysopelea, Dendrelaphis, and Dryophiops; and appointed Hemerophis (Coluber) zebrinus to a new genus, Mopanveldophis. Although we provide insight into some distinguished problematic nodes, at the deeper phylogenetic scale, resolution of these nodes may require sampling of more slowly-evolving nuclear genes.
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Affiliation(s)
- Alex Figueroa
- Department of Biological Sciences, University of New Orleans, New Orleans, LA, United States of America
| | - Alexander D. McKelvy
- Department of Biology, The Graduate School and Center, City University of New York, New York, NY, United States of America
- Department of Biology, 6S-143, College of Staten Island, 2800 Victory Boulevard, Staten Island, NY, United States of America
| | - L. Lee Grismer
- Department of Biology, La Sierra University, 4500 Riverwalk Parkway, Riverside, CA, United States of America
| | - Charles D. Bell
- Department of Biological Sciences, University of New Orleans, New Orleans, LA, United States of America
| | - Simon P. Lailvaux
- Department of Biological Sciences, University of New Orleans, New Orleans, LA, United States of America
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58
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Braz HB, Scartozzoni RR, Almeida-Santos SM. Reproductive modes of the South American water snakes: A study system for the evolution of viviparity in squamate reptiles. ZOOL ANZ 2016. [DOI: 10.1016/j.jcz.2016.04.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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59
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Passos P, Prudente AL, Lynch JD. Redescription ofAtractus punctiventrisand Description of Two NewAtractus(Serpentes: Dipsadidae) from Brazilian Amazonia. HERPETOLOGICAL MONOGRAPHS 2016. [DOI: 10.1655/herpmonographs-d-14-00009] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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60
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Costa HC, Santana DJ, Leal F, Koroiva R, Garcia PC. A New Species ofHelicops(Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil. HERPETOLOGICA 2016. [DOI: 10.1655/herpetologica-d-15-00059] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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61
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Torres-Carvajal O, Echevarría LY, Venegas PJ, Germán Chávez, Camper JD. Description and phylogeny of three new species of Synophis (Colubridae, Dipsadinae) from the tropical Andes in Ecuador and Peru. Zookeys 2015; 546:153-79. [PMID: 26798310 PMCID: PMC4714351 DOI: 10.3897/zookeys.546.6533] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/16/2015] [Indexed: 11/12/2022] Open
Abstract
The discovery of three new species of Synophis snakes from the eastern slopes of the tropical Andes in Ecuador and Peru is reported. All previous records of Synophis bicolor from eastern Ecuador correspond to Synophis bogerti sp. n., which occurs between 1000-1750 m along a large part of the Amazonian slopes of the Ecuadorian Andes. In contrast, Synophis zamora sp. n. is restricted to southeastern Ecuador, including Cordillera del Cóndor, between 1543-1843 m. Synophis insulomontanus sp. n. is from the eastern slopes of the Andes in central and northern Peru, between 1122-1798 m, and represents the first record of Synophis from this country. All three new species share in common a large lateral spine at the base of the hemipenial body. A molecular phylogenetic tree based on three mitochondrial genes is presented, including samples of Diaphorolepis wagneri. Our tree strongly supports Synophis and Diaphorolepis as sister taxa, as well as monophyly of the three new species described here and Synophis calamitus. Inclusion of Synophis and Diaphorolepis within Dipsadinae as sister to a clade containing Imantodes, Dipsas, Ninia, Hypsiglena and Pseudoleptodeira is also supported.
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Affiliation(s)
- Omar Torres-Carvajal
- Museo de Zoología, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, Apartado 17-01-2184, Quito-Ecuador
| | - Lourdes Y. Echevarría
- Museo de Zoología, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, Apartado 17-01-2184, Quito-Ecuador
- División de Herpetología-Centro de Ornitología y Biodiversidad (CORBIDI), Santa Rita N˚105 Of. 202, Urb. Huertos de San Antonio, Surco, Lima-Perú
| | - Pablo J. Venegas
- Museo de Zoología, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, Apartado 17-01-2184, Quito-Ecuador
- División de Herpetología-Centro de Ornitología y Biodiversidad (CORBIDI), Santa Rita N˚105 Of. 202, Urb. Huertos de San Antonio, Surco, Lima-Perú
| | - Germán Chávez
- División de Herpetología-Centro de Ornitología y Biodiversidad (CORBIDI), Santa Rita N˚105 Of. 202, Urb. Huertos de San Antonio, Surco, Lima-Perú
| | - Jeffrey D. Camper
- Department of Biology, Francis Marion University, Florence, South Carolina 29506-USA
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Rodrigues JB, Gama SCA, Filho GAP, França FGR. Composition and Ecological Aspects of a Snake Assemblage on the Savanna Enclave of the Atlantic Forest of the Guaribas Biological Reserve in Northeastern Brazil. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2015. [DOI: 10.2994/sajh-d-15-00016.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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63
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Pyron RA, Guayasamin JM, Peñafiel N, Bustamante L, Arteaga A. Systematics of Nothopsini (Serpentes, Dipsadidae), with a new species of Synophis from the Pacific Andean slopes of southwestern Ecuador. Zookeys 2015; 541:109-47. [PMID: 26798284 PMCID: PMC4714381 DOI: 10.3897/zookeys.541.6058] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 11/03/2015] [Indexed: 11/12/2022] Open
Abstract
Within Dipsadinae, some recent authors have recognized a tribe Nothopsini containing the genera Diaphorolepis, Emmochliophis, Nothopsis, Synophis, and Xenopholis, on the basis of a number of putative morphological synapomorphies. However, molecular results suggest that Nothopsis, Synophis, and Xenopholis do not form a monophyletic group, while the remaining taxa are unsampled in recent molecular phylogenies. Here, DNA-sequence data for some Diaphorolepis and Synophis species are provided for the first time, as well as additional new sequences for Nothopsis and some Synophis species. Including these and other existing data for nothopsine species, previous studies showing that Nothopsini is not a natural group are corroborated. Nothopsini Cope, 1871 is restricted to Nothopsis. Diaphorolepidini Jenner, 1981 is resurrected and re-delimited to include only Diaphorolepis, Emmochliophis, and Synophis. Finally, Xenopholis remains Dipsadinae incertae sedis. Known material of Diaphorolepidini is reviewed to generate revised and expanded descriptions and diagnoses at the tribe, genus, and species level. Numerous cryptic species are likely present in Synophis bicolor and Synophis lasallei. Finally, a new population from the low-elevation cloud forests of SW Ecuador is reported upon, which is genetically and morphologically distinct from all other species, that is here named Synophis zaheri sp. n.
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Affiliation(s)
- R. Alexander Pyron
- Department of Biological Sciences, The George Washington University, 2023 G St. NW, Washington, D.C. 20052 USA
| | - Juan M. Guayasamin
- Centro de Investigación en Biodiversidad y Cambio Climático (BioCamb), Ingeniería en Biodiversidad y Recursos Genéticos, Facultad de Ciencias de Medio Ambiente, Universidad Tecnológica Indoamérica, Calle Machala y Sabanilla, Quito, Ecuador
| | - Nicolás Peñafiel
- Centro de Investigación en Biodiversidad y Cambio Climático (BioCamb), Ingeniería en Biodiversidad y Recursos Genéticos, Facultad de Ciencias de Medio Ambiente, Universidad Tecnológica Indoamérica, Calle Machala y Sabanilla, Quito, Ecuador
| | - Lucas Bustamante
- Centro de Investigación en Biodiversidad y Cambio Climático (BioCamb), Ingeniería en Biodiversidad y Recursos Genéticos, Facultad de Ciencias de Medio Ambiente, Universidad Tecnológica Indoamérica, Calle Machala y Sabanilla, Quito, Ecuador
- Tropical Herping, Av. Eloy Alfaro N39-202 y José Puerta, Ed. Montecatini, Quito, Ecuador
| | - Alejandro Arteaga
- Centro de Investigación en Biodiversidad y Cambio Climático (BioCamb), Ingeniería en Biodiversidad y Recursos Genéticos, Facultad de Ciencias de Medio Ambiente, Universidad Tecnológica Indoamérica, Calle Machala y Sabanilla, Quito, Ecuador
- Tropical Herping, Av. Eloy Alfaro N39-202 y José Puerta, Ed. Montecatini, Quito, Ecuador
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Urra FA, Pulgar R, Gutiérrez R, Hodar C, Cambiazo V, Labra A. Identification and molecular characterization of five putative toxins from the venom gland of the snake Philodryas chamissonis (Serpentes: Dipsadidae). Toxicon 2015; 108:19-31. [PMID: 26410112 DOI: 10.1016/j.toxicon.2015.09.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 09/20/2015] [Accepted: 09/21/2015] [Indexed: 12/01/2022]
Abstract
Philodryas chamissonis is a rear-fanged snake endemic to Chile. Its bite produces mild to moderate symptoms with proteolytic and anti-coagulant effects. Presently, the composition of the venom, as well as, the biochemical and structural characteristics of its toxins, remains unknown. In this study, we cloned and reported the first full-length sequences of five toxin-encoding genes from the venom gland of this species: Type III snake venom metalloprotease (SVMP), snake venom serine protease (SVSP), Cysteine-rich secretory protein (CRISP), α and β subunits of C-type lectin-like protein (CLP) and C-type natriuretic peptide (NP). These genes are highly expressed in the venom gland and their sequences exhibited a putative signal peptide, suggesting that these are components of the venom. These putative toxins had different evolutionary relationships with those reported for some front-fanged snakes, being SVMP, SVSP and CRISP of P. chamissonis closely related to the toxins present in Elapidae species, while NP was more related to those of Viperidae species. In addition, analyses suggest that the α and β subunits of CLP of P. chamissonis might have a α-subunit scaffold in common with Viperidae species, whose highly variable C-terminal region might have allowed the diversification in α and β subunits. Our results provide the first molecular description of the toxins possibly implicated in the envenomation of prey and humans by the bite of P. chamissonis.
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Affiliation(s)
- Félix A Urra
- Laboratorio de Neuroetología, Programa de Fisiología y Biofísica, Facultad de Medicina, Universidad de Chile, Casilla 70005, Correo 7, Santiago, Chile; Laboratorio de Cáncer y Bioenergética, Programa de Farmacología Molecular y Clínica, Facultad de Medicina, Universidad de Chile, Casilla 70005, Correo 7, Santiago, Chile.
| | - Rodrigo Pulgar
- Laboratorio de Bioinformática y Expresión Génica, INTA, Universidad de Chile and Fondap Center for Genome Regulation (CGR), El Líbano 5524, Santiago, Chile
| | - Ricardo Gutiérrez
- Laboratorio de Bioinformática y Expresión Génica, INTA, Universidad de Chile and Fondap Center for Genome Regulation (CGR), El Líbano 5524, Santiago, Chile
| | - Christian Hodar
- Laboratorio de Bioinformática y Expresión Génica, INTA, Universidad de Chile and Fondap Center for Genome Regulation (CGR), El Líbano 5524, Santiago, Chile
| | - Verónica Cambiazo
- Laboratorio de Bioinformática y Expresión Génica, INTA, Universidad de Chile and Fondap Center for Genome Regulation (CGR), El Líbano 5524, Santiago, Chile
| | - Antonieta Labra
- Laboratorio de Neuroetología, Programa de Fisiología y Biofísica, Facultad de Medicina, Universidad de Chile, Casilla 70005, Correo 7, Santiago, Chile; Department of Biosciences, Centre for Ecological and Evolutionary Synthesis, University of Oslo, PB1066 Blinder, 0316 Oslo, Norway.
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65
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Sheehy CM, Albert JS, Lillywhite HB. The evolution of tail length in snakes associated with different gravitational environments. Funct Ecol 2015. [DOI: 10.1111/1365-2435.12472] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Coleman M. Sheehy
- Department of Biology University of Florida Gainesville Florida32611 USA
| | - James S. Albert
- Department of Biology University of Louisiana Lafayette Louisiana70504 USA
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Rodríguez-Robles JA, Jezkova T, Fujita MK, Tolson PJ, García MA. Genetic divergence and diversity in the Mona and Virgin Islands Boas, Chilabothrus monensis (Epicrates monensis) (Serpentes: Boidae), West Indian snakes of special conservation concern. Mol Phylogenet Evol 2015; 88:144-53. [PMID: 25837733 DOI: 10.1016/j.ympev.2015.03.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2014] [Revised: 02/24/2015] [Accepted: 03/20/2015] [Indexed: 10/23/2022]
Abstract
Habitat fragmentation reduces the extent and connectivity of suitable habitats, and can lead to changes in population genetic structure. Limited gene flow among isolated demes can result in increased genetic divergence among populations, and decreased genetic diversity within demes. We assessed patterns of genetic variation in the Caribbean boa Chilabothrus monensis (Epicrates monensis) using two mitochondrial and seven nuclear markers, and relying on the largest number of specimens of these snakes examined to date. Two disjunct subspecies of C. monensis are recognized: the threatened C. m. monensis, endemic to Mona Island, and the rare and endangered C. m. granti, which occurs on various islands of the Puerto Rican Bank. Mitochondrial and nuclear markers revealed unambiguous genetic differences between the taxa, and coalescent species delimitation methods indicated that these snakes likely are different evolutionary lineages, which we recognize at the species level, C. monensis and C. granti. All examined loci in C. monensis (sensu stricto) are monomorphic, which may indicate a recent bottleneck event. Each population of C. granti exclusively contains private mtDNA haplotypes, but five of the seven nuclear genes assayed are monomorphic, and nucleotide diversity is low in the two remaining markers. The faster pace of evolution of mtDNA possibly reflects the present-day isolation of populations of C. granti, whereas the slower substitution rate of nuDNA may instead mirror the relatively recent episodes of connectivity among the populations facilitated by the lower sea level during the Pleistocene. The small degree of overall genetic variation in C. granti suggests that demes of this snake could be managed as a single unit, a practice that would significantly increase their effective population size.
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Affiliation(s)
- Javier A Rodríguez-Robles
- School of Life Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4004, USA.
| | - Tereza Jezkova
- School of Life Sciences, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Las Vegas, NV 89154-4004, USA.
| | - Matthew K Fujita
- Department Biology, University of Texas at Arlington, 501 S. Nedderman Drive, Arlington, TX 76019, USA.
| | - Peter J Tolson
- Department of Conservation and Research, The Toledo Zoo, P.O. Box 140130, Toledo, OH 43614-0130, USA.
| | - Miguel A García
- Bureau of Fisheries and Wildlife, Department of Natural and Environmental Resources, P.O. Box 366147, San Juan, PR 00936-6147, USA; Center for Applied Tropical Ecology and Conservation, University of Puerto Rico, P.O. Box 23341, Río Piedras, PR 00931-3341, USA.
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67
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Cabral H, Cacciali P. A New Species of Phalotris (Serpentes: Dipsadidae) from the Paraguayan Chaco. HERPETOLOGICA 2015. [DOI: 10.1655/herpetologica-d-14-00021] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Hugo Cabral
- Asociación Guyra Paraguay, Gaetano Martino 215, Asunción, Paraguay
| | - Pier Cacciali
- Instituto de Investigación Biológica del Paraguay, Del Escudo 2044, Asunción, Paraguay
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68
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Pyron RA, Hendry CR, Chou VM, Lemmon EM, Lemmon AR, Burbrink FT. Effectiveness of phylogenomic data and coalescent species-tree methods for resolving difficult nodes in the phylogeny of advanced snakes (Serpentes: Caenophidia). Mol Phylogenet Evol 2014; 81:221-31. [DOI: 10.1016/j.ympev.2014.08.023] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2014] [Revised: 07/29/2014] [Accepted: 08/22/2014] [Indexed: 11/15/2022]
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Salazar-Valenzuela D, Torres-Carvajal O, Passos P. A New Species ofAtractus(Serpentes: Dipsadidae) from the Andes of Ecuador. HERPETOLOGICA 2014. [DOI: 10.1655/herpetologica-d-13-00045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- David Salazar-Valenzuela
- Department of Evolution, Ecology, and Organismal Biology, The Ohio State University, 300 Aronoff Laboratory, 318 West 12th Avenue, Columbus, OH 43210, USA
- Escuela de Biología, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, Apartado 17-01-2184, Quito, Ecuador
| | - Omar Torres-Carvajal
- Escuela de Biología, Pontificia Universidad Católica del Ecuador, Avenida 12 de Octubre y Roca, Apartado 17-01-2184, Quito, Ecuador
| | - Paulo Passos
- Departamento de Vertebrados, Museu Nacional, Quinta da Boa Vista, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 20940-040, Brasil
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Sheehy CM, Yánez-Muñoz MH, Valencia JH, Smith EN. A New Species ofSiphlophis(Serpentes: Dipsadidae: Xenodontinae) from the Eastern Andean Slopes of Ecuador. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2014. [DOI: 10.2994/sajh-d-12-00031.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Zaher H, de Oliveira L, Grazziotin FG, Campagner M, Jared C, Antoniazzi MM, Prudente AL. Consuming viscous prey: a novel protein-secreting delivery system in neotropical snail-eating snakes. BMC Evol Biol 2014; 14:58. [PMID: 24661572 PMCID: PMC4021269 DOI: 10.1186/1471-2148-14-58] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2013] [Accepted: 03/12/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Efficient venom delivery systems are known to occur only in varanoid lizards and advanced colubroidean snakes among squamate reptiles. Although components of these venomous systems might have been present in a common ancestor, the two lineages independently evolved strikingly different venom gland systems. In snakes, venom is produced exclusively by serous glands in the upper jaw. Within the colubroidean radiation, lower jaw seromucous infralabial glands are known only in two distinct lineages-the basal pareatids and the more advanced Neotropical dipsadines known as "goo-eating snakes". Goo-eaters are a highly diversified, ecologically specialized clade that feeds exclusively on invertebrates (e.g., gastropod molluscs and annelids). Their evolutionary success has been attributed to their peculiar feeding strategies, which remain surprisingly poorly understood. More specifically, it has long been thought that the more derived Dipsadini genera Dipsas and Sibynomorphus use glandular toxins secreted by their infralabial glands to extract snails from their shells. RESULTS Here, we report the presence in the tribe Dipsadini of a novel lower jaw protein-secreting delivery system effected by a gland that is not functionally related to adjacent teeth, but rather opens loosely on the oral epithelium near the tip of the mandible, suggesting that its secretion is not injected into the prey as a form of envenomation but rather helps control the mucus and assists in the ingestion of their highly viscous preys. A similar protein-secreting system is also present in the goo-eating genus Geophis and may share the same adaptive purpose as that hypothesized for Dipsadini. Our phylogenetic hypothesis suggests that the acquisition of a seromucous infralabial gland represents a uniquely derived trait of the goo-eating clade that evolved independently twice within the group as a functionally complex protein-secreting delivery system. CONCLUSIONS The acquisition by snail-eating snakes of such a complex protein-secreting system suggests that the secretion from the hypertrophied infralabial glands of goo-eating snakes may have a fundamental role in mucus control and prey transport rather than envenomation of prey. Evolution of a functional secretory system that combines a solution for mucus control and transport of viscous preys is here thought to underlie the successful radiation of goo-eating snakes.
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Affiliation(s)
- Hussam Zaher
- Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré 481, São Paulo, SP CEP 04263-000, Brazil
| | - Leonardo de Oliveira
- Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré 481, São Paulo, SP CEP 04263-000, Brazil
- Programa de Pós Graduação em Zoologia, Universidade Estadual Paulista, Avenida 24A 1515, Rio Claro, SP CEP 13506-900, Brazil
| | - Felipe G Grazziotin
- Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré 481, São Paulo, SP CEP 04263-000, Brazil
| | - Michelle Campagner
- Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré 481, São Paulo, SP CEP 04263-000, Brazil
- Museu Biológico, Instituto Butantan, Avenida Vital Brazil 1500, São Paulo, SP CEP 05503-900, Brazil
| | - Carlos Jared
- Laboratório de Biologia Celular, Instituto Butantan, Avenida Vital Brazil 1500, São Paulo, SP CEP 05503-900, Brazil
| | - Marta M Antoniazzi
- Laboratório de Biologia Celular, Instituto Butantan, Avenida Vital Brazil 1500, São Paulo, SP CEP 05503-900, Brazil
| | - Ana L Prudente
- Museu Paraense Emílio Goeldi, Avenida Magalhães Barata 376, Belém, PA CEP 66040-170, Brazil
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Jowers MJ, Caut S, Garcia-Mudarra JL, Alasaad S, Ineich I. Molecular Phylogenetics of the Possibly Extinct Martinique Ground Snake. HERPETOLOGICA 2013. [DOI: 10.1655/herpetologica-d-12-00085] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Michael J. Jowers
- Estación Biológica de Doñana (CSIC), Av. Americo Vespucio, 41092, Sevilla, Spain
| | - Stephane Caut
- Estación Biológica de Doñana (CSIC), Av. Americo Vespucio, 41092, Sevilla, Spain
| | | | - Samer Alasaad
- Estación Biológica de Doñana (CSIC), Av. Americo Vespucio, 41092, Sevilla, Spain
| | - Ivan Ineich
- Muséum national d'Histoire naturelle, Département Systématique et Evolution, UMR CNRS 7205 (Origine, Structure et Evolution de la Biodiversité)–25, rue Cuvier, Reptiles and Amphibiens, Case Postale 30, 75005 Paris, France
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73
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Pyron RA, Burbrink FT, Wiens JJ. A phylogeny and revised classification of Squamata, including 4161 species of lizards and snakes. BMC Evol Biol 2013; 13:93. [PMID: 23627680 PMCID: PMC3682911 DOI: 10.1186/1471-2148-13-93] [Citation(s) in RCA: 962] [Impact Index Per Article: 87.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Accepted: 03/19/2013] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The extant squamates (>9400 known species of lizards and snakes) are one of the most diverse and conspicuous radiations of terrestrial vertebrates, but no studies have attempted to reconstruct a phylogeny for the group with large-scale taxon sampling. Such an estimate is invaluable for comparative evolutionary studies, and to address their classification. Here, we present the first large-scale phylogenetic estimate for Squamata. RESULTS The estimated phylogeny contains 4161 species, representing all currently recognized families and subfamilies. The analysis is based on up to 12896 base pairs of sequence data per species (average = 2497 bp) from 12 genes, including seven nuclear loci (BDNF, c-mos, NT3, PDC, R35, RAG-1, and RAG-2), and five mitochondrial genes (12S, 16S, cytochrome b, ND2, and ND4). The tree provides important confirmation for recent estimates of higher-level squamate phylogeny based on molecular data (but with more limited taxon sampling), estimates that are very different from previous morphology-based hypotheses. The tree also includes many relationships that differ from previous molecular estimates and many that differ from traditional taxonomy. CONCLUSIONS We present a new large-scale phylogeny of squamate reptiles that should be a valuable resource for future comparative studies. We also present a revised classification of squamates at the family and subfamily level to bring the taxonomy more in line with the new phylogenetic hypothesis. This classification includes new, resurrected, and modified subfamilies within gymnophthalmid and scincid lizards, and boid, colubrid, and lamprophiid snakes.
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Affiliation(s)
- R Alexander Pyron
- Department of Biological Sciences, The George Washington University, 2023 G St. NW, Washington, DC 20052, USA
| | - Frank T Burbrink
- Department of Biology, The Graduate School and University Center, The City University of New York, 365 5th Ave., New York, NY 10016, USA
- Department of Biology, The College of Staten Island, The City University of New York, 2800 Victory Blvd., Staten Island, NY 10314, USA
| | - John J Wiens
- Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ 85721-0088, USA
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Alencar LRV, Gaiarsa MP, Martins M. The Evolution of Diet and Microhabitat use in Pseudoboine Snakes. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2013. [DOI: 10.2994/sajh-d-13-00005.1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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75
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Bellini GP, Arzamendia V, Giraudo AR. Ecology ofThamnodynastes hypoconiain Subtropical–Temperate South America. HERPETOLOGICA 2013. [DOI: 10.1655/herpetologica-d-12-00027] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gomes CA, Marques OAV. Food Habits, Reproductive Biology, and Seasonal Activity of the Dipsadid Snake,Echinanthera undulata(Wied, 1824), from the Atlantic Forest in Southeastern Brazil. SOUTH AMERICAN JOURNAL OF HERPETOLOGY 2012. [DOI: 10.2994/057.007.0305] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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