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P. Viana · SciRah

Researcher profile · Semantic Scholar

P. Viana

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P. Viana — researcher profile on SciRah

h-index: 14
Works: 59
Citations: 513

Most-cited papers

Comparative Cytogenetics and Neo-Y Formation in Small-Sized Fish Species of the Genus Pyrrhulina (Characiformes, Lebiasinidae)
R. L. D. de Moraes, A. Sember, L. A. C. Bertollo, E. A. de Oliveira +8 more
2019Frontiers in Genetics36 citations Open access
Semantic Scholar
Cytogenetics, genomics and biodiversity of the South American and African Arapaimidae fish family (Teleostei, Osteoglossiformes)
E. A. de Oliveira, L. A. C. Bertollo, P. Ráb, T. Ezaz +10 more
2019PLoS ONE32 citations Open access
Semantic Scholar
Crotalus Durissus Ruruima: Current Knowledge on Natural History, Medical Importance, and Clinical Toxinology
M. B. Pucca, P. Bernarde, A. M. Rocha, P. Viana +11 more
2021Frontiers in Immunology27 citations Open access
Semantic Scholar
Is the Karyotype of Neotropical Boid Snakes Really Conserved? Cytotaxonomy, Chromosomal Rearrangements and Karyotype Organization in the Boidae Family
P. Viana, L. Ribeiro, G M Souza, H. de Menezes Chalkidis +2 more
2016PLoS ONE23 citations Open access
Semantic Scholar
Landscape of snake’ sex chromosomes evolution spanning 85 MYR reveals ancestry of sequences despite distinct evolutionary trajectories
P. Viana, T. Ezaz, M. de Bello Cioffi, T. Liehr +4 more
2020Scientific Reports22 citations Open access
Semantic Scholar
Evolutionary Insights of the ZW Sex Chromosomes in Snakes: A New Chapter Added by the Amazonian Puffing Snakes of the Genus Spilotes
P. Viana, T. Ezaz, M. de Bello Cioffi, Breno Jackson Almeida +1 more
2019Genes21 citations Open access
Semantic Scholar
Unrevealing the Karyotypic Evolution and Cytotaxonomy of Armored Catfishes (Loricariinae) with Emphasis in Sturisoma, Loricariichthys, Loricaria, Proloricaria, Pyxiloricaria, and Rineloricaria
F. H. Takagui, L. Baumgärtner, Natália Bortolazzi Venturelli, L. M. Paiz +7 more
2020Zebrafish18 citations
Semantic Scholar
Deciphering the Evolutionary History of Arowana Fishes (Teleostei, Osteoglossiformes, Osteoglossidae): Insight from Comparative Cytogenomics
M. de Bello Cioffi, P. Ráb, T. Ezaz, L. A. C. Bertollo +15 more
2019International Journal of Molecular Sciences18 citations Open access
Semantic Scholar
Centric Fusions behind the Karyotype Evolution of Neotropical Nannostomus Pencilfishes (Characiforme, Lebiasinidae): First Insights from a Molecular Cytogenetic Perspective
A. Sember, E. A. de Oliveira, P. Ráb, L. A. C. Bertollo +8 more
2020Genes17 citations Open access
Semantic Scholar
An Insight into the Chromosomal Evolution of Lebiasinidae (Teleostei, Characiformes)
Francisco de M. C. Sassi, T. Hatanaka, R. L. D. de Moraes, G. A. Toma +10 more
2020Genes17 citations Open access
Semantic Scholar
Chromosomal rearrangements and the first indication of an ♀X1 X1 X2 X2 /♂X1 X2 Y sex chromosome system in Rineloricaria fishes (Teleostei: Siluriformes).
Leandro Marajó, P. Viana, Alex M. V. Ferreira, L. R. Py-Daniel +3 more
2022Journal of Fish Biology15 citations
Semantic Scholar
Revisiting the Karyotypes of Alligators and Caimans (Crocodylia, Alligatoridae) after a Half-Century Delay: Bridging the Gap in the Chromosomal Evolution of Reptiles
Vanessa C S Oliveira, Marie Altmanová, P. Viana, T. Ezaz +9 more
2021Cells15 citations Open access
Semantic Scholar
Evolutionary Relationships among Boulengerella Species (Ctenoluciidae, Characiformes): Genomic Organization of Repetitive DNAs and Highly Conserved Karyotypes
José F. de Souza e Sousa, P. Viana, L. A. C. Bertollo, M. de Bello Cioffi +1 more
2017Cytogenetic and Genome Research15 citations
Semantic Scholar
Genomic Organization of Repetitive DNAs and Differentiation of an XX/XY Sex Chromosome System in the Amazonian Puffer Fish, Colomesus asellus (Tetraodontiformes)
P. Viana, T. Ezaz, Leandro Marajó, Milena Ferreira +5 more
2017Cytogenetic and Genome Research14 citations
Semantic Scholar
An optimized protocol for obtaining mitotic chromosomes from cultured reptilian lymphocytes
P. Viana, L. Ribeiro, Tiago Lima, V. D. de Carvalho +3 more
2016The Nucleus14 citations
Semantic Scholar
Adding New Pieces to the Puzzle of Karyotype Evolution in Harttia (Siluriformes, Loricariidae): Investigation of Amazonian Species
Francisco de M. C. Sassi, O. Moreira-Filho, G. A. Deon, A. Sember +7 more
2021Biology13 citations Open access
Semantic Scholar
Historical demography and climate driven distributional changes in a widespread Neotropical freshwater species with high economic importance
E. Oliveira, M. F. Perez, L. A. C. Bertollo, C. C. Gestich +7 more
2020Ecography13 citations Open access
Semantic Scholar
The Amazonian Red Side-Necked Turtle Rhinemys rufipes (Spix, 1824) (Testudines, Chelidae) Has a GSD Sex-Determining Mechanism with an Ancient XY Sex Microchromosome System
P. Viana, E. Feldberg, M. de Bello Cioffi, V. D. de Carvalho +4 more
2020Cells13 citations Open access
Semantic Scholar
Cytogenetics of the small-sized fish, Copeina guttata (Characiformes, Lebiasinidae): Novel insights into the karyotype differentiation of the family
G. A. Toma, R. L. D. de Moraes, Francisco de Menezes Cavalcante Sassi, L. A. C. Bertollo +9 more
2019PLoS ONE13 citations Open access
Semantic Scholar
Cytogenetics of two Farlowella species (Loricariidae: Loricariinae): implications on the taxonomic status of the species
Leandro Marajó, P. Viana, Milena Ferreira, L. R. Rapp Py-Daniel +1 more
201813 citations Open access
Semantic Scholar
Tracking the Evolutionary Trends Among Small-Size Fishes of the Genus Pyrrhulina (Characiforme, Lebiasinidae): New Insights From a Molecular Cytogenetic Perspective
R. L. D. de Moraes, Francisco de Menezes Cavalcante Sassi, L. A. C. Bertollo, M. Marinho +7 more
2021Frontiers in Genetics12 citations Open access
Semantic Scholar
Looking for genetic effects of polluted anthropized environments on Caiman crocodilus crocodilus (Reptilia, Crocodylia): A comparative genotoxic and chromosomal analysis.
Vanessa C S Oliveira, P. Viana, M. Gross, E. Feldberg +4 more
2020Ecotoxicology and Environmental Safety12 citations Open access
Semantic Scholar
Against the mainstream: exceptional evolutionary stability of ZW sex chromosomes across the fish families Triportheidae and Gasteropelecidae (Teleostei: Characiformes)
C. F. Yano, A. Sember, Rafael Kretschmer, L. A. C. Bertollo +10 more
2021Chromosome Research11 citations
Semantic Scholar
Cytogenetic Analysis of Panaqolus tankei Cramer & Sousa, 2016 (Siluriformes, Loricariidae), an Ornamental Fish Endemic to Xingu River, Brazil
Alex M. V. Ferreira, P. Viana, J. Zuanon, T. Ezaz +3 more
2021Cytogenetic and Genome Research10 citations
Semantic Scholar
Interspecific Genetic Differences and Historical Demography in South American Arowanas (Osteoglossiformes, Osteoglossidae, Osteoglossum)
F. H. D. de Souza, M. F. Perez, L. A. C. Bertollo, E. A. de Oliveira +8 more
2019Genes10 citations Open access
Semantic Scholar
Intra-generic and interspecific karyotype patterns of Leptodactylus and Adenomera (Anura, Leptodactylidae) with inclusion of five species from Central Amazonia
A. C. Coelho, Thais Lemos de Mattos, P. Viana, M. Terencio +3 more
2015Genetica10 citations
Semantic Scholar
Reconstruction of the Doradinae (Siluriformes-Doradidae) ancestral diploid number and NOR pattern reveals new insights about the karyotypic diversification of the Neotropical thorny catfishes
F. H. Takagui, P. Viana, L. Baumgärtner, J. Bitencourt +6 more
2021Genetics and Molecular Biology9 citations Open access
Semantic Scholar
Karyotype Evolution of Talking Thorny Catfishes Anadoras (Doradidae, Astrodoradinae): A Process Mediated by Structural Rearrangements and Intense Reorganization of Repetitive DNAs
F. H. Takagui, L. Baumgärtner, P. Viana, M. C. Lima +8 more
2022Cytogenetic and Genome Research7 citations Open access
Semantic Scholar
The Genetic Differentiation of Pyrrhulina (Teleostei, Characiformes) Species is Likely Influenced by Both Geographical Distribution and Chromosomal Rearrangements
P. H. N. Ferreira, F. H. S. Souza, R. L. D. de Moraes, M. F. Perez +7 more
2022Frontiers in Genetics7 citations Open access
Semantic Scholar
Karyotypic characterization of Centromochlus schultzi Rössel 1962 (Auchenipteridae, Centromochlinae) from the Xingu River basin: New inferences on chromosomal evolution in Centromochlus
S. Kowalski, C. Haerter, Diana Paula Perin, F. H. Takagui +6 more
2024Genetics and Molecular Biology6 citations Open access
Semantic Scholar
Feeding behavior and first record of Rhinatrema bivittatum (Guérin-Méneville, 1829) as part of the diet of the ribbon coral snake, Micrurus lemniscatus (Linnaeus, 1758) in the Central Amazon region (Serpentes: Elapidae)
P. Viana, D. M. de Mello Mendes
20156 citations
Semantic Scholar
Matamatas Chelus spp. (Testudines, Chelidae) have a remarkable evolutionary history of sex chromosomes with a long-term stable XY microchromosome system
P. Viana, E. Feldberg, F. H. Takagui, Sabrina Menezes +2 more
2022Scientific Reports5 citations Open access
Semantic Scholar
New records of Mesoclemmys raniceps (Testudines, Chelidae) for the states of Amazonas, Pará and Rondônia, northern Brazil, including for the Tocantins Basin
Elizângela Silva de Brito, R. Valadão, F. A. G. Cunha, Cristiane Gomes de Araújo +2 more
20195 citations
Semantic Scholar
A variant W chromosome in Centromochlus heckelii (Siluriformes, Auchenipteridae) and the role of repeated DNA in its heteromorphism
C. Haerter, P. Viana, F. H. Takagui, Sandro Tonello +5 more
2025Genetics and Molecular Biology4 citations Open access
Semantic Scholar
Karyotype variability in six Amazonian species of the family Curimatidae (Characiformes) revealed by repetitive sequence mapping
Juliana Nascimento Moraes, P. Viana, R. M. Favarato, V. Pinheiro-Figliuolo +1 more
2022Genetics and Molecular Biology4 citations Open access
Semantic Scholar
Chromosomal Evolution in Aspredinidae (Teleostei, Siluriformes): Insights on Intra- and Interspecific Relationships with Related Groups
Milena Ferreira, I. D. de Jesus, P. Viana, Caroline Garcia +4 more
2020Cytogenetic and Genome Research4 citations
Semantic Scholar
Comparative cytogenetic survey of the giant bonytongue Arapaima fish (Osteoglossiformes: Arapaimidae), across different Amazonian and Tocantins/Araguaia River basins
E. A. de Oliveira, Francisco de Menezes Cavalcante Sassi, M. F. Perez, L. A. C. Bertollo +7 more
20204 citations Open access
Semantic Scholar
Lipidomics of Bothrops atrox and Crotalus durissus ruruima venoms, the two major viperids involved in human envenomings in the Brazilian Amazon
J. B. Maciel, V. Nardini, N. S. Carvalho, A. C. Trabuco +8 more
2025Archives of Toxicology3 citations
Semantic Scholar
Chromosomal analysis of two Acanthodoras species (Doradidae, Siluriformes): Insights into the oldest thorny catfish clade and its karyotype evolution.
F. H. Takagui, P. Viana, C. Haerter, Jansen Zuanon +4 more
2024Journal of Fish Biology3 citations
Semantic Scholar
Karyotypic variation of two populations of the small freshwater stingray Potamotrygon wallacei Carvalho, Rosa & Araújo 2016: A classical and molecular approach
Alex M. V. Ferreira, P. Viana, Leandro Marajó, E. Feldberg
2023PLoS ONE3 citations Open access
Semantic Scholar
First Karyotypic Insights into Potamotrygon schroederi Fernández-Yépez, 1958: Association of Different Classes of Repetitive DNA
Alex M. V. Ferreira, P. Viana, Leandro Marajó, E. Feldberg
2024Cytogenetic and Genome Research2 citations
Semantic Scholar
Chromosome and bands: comparative cytogenetics of the morphotypes of Ameerega trivittata (Anura: Dendrobatidae)
E. Koch, E. Feldberg, Diego Sotero de Barros Pinangé, P. Viana +2 more
2023Biological Journal of the Linnean Society2 citations Open access
Semantic Scholar
Revisiting the Karyotype Evolution of Neotropical Boid Snakes: A Puzzle Mediated by Chromosomal Fissions
P. Viana, T. Ezaz, M. de Bello Cioffi, T. Liehr +4 more
2020Cells2 citations Open access
Semantic Scholar
Comparative cytogenetic of six species of Amazonian Peacock bass (Cichla, Cichlinae): intrachromosomal variations and genetic introgression among sympatric species
J. Quadros, Alex M. V. Ferreira, P. Viana, Leandro Marajó +3 more
2020Comparative Cytogenetics2 citations Open access
Semantic Scholar
Silent Threats: First Case of Plastic Ingestion by Drymarchon corais (Yellow-tailed Indigo Snake) Highlights Environmental Risks of Improper Waste Disposal in the Amazon.
Caio S. da Silva, M. Almeida, P. Viana
2025Anais da Academia Brasileira de Ciências1 citations Open access
Semantic Scholar
The role of dispersal of repetitive DNAs in the diversification of bristlenose plecos (Loricariidae, Hypostominae, Ancistrus) from South Atlantic Coastal drainages.
F. H. Takagui, L. P. Santana, M. Rubert, P. Viana +2 more
2025Anais da Academia Brasileira de Ciências1 citations Open access
Semantic Scholar
Toe pad morphology and adhesion in the miniaturized gecko, Chatogekko amazonicus (Gekkota: Sphaerodactylidae)
A. Griffing, Juan D. Daza, Stuart V. Nielsen, Fernanda P. Werneck +2 more
2024The Anatomical Record1 citations Open access
Semantic Scholar
Ingemar Gustavsson (1938-2016)
Michael Schmid, C. Steinlein, W. Feichtinger, I. Nanda +22 more
2017Cytogenetic and Genome Research1 citations Open access
Semantic Scholar
Chromosomal Dynamics and Evidence of Differentiation of the Proto-Sex Chromosomes XY in Farlowella oxyrryncha (Loricariidae; Loricariinae).
Leandro Marajó, P. Viana, Alex M. V. Ferreira, V. Tura +1 more
2026Genome0 citations
Semantic Scholar
Cytogenetic and COI-based analyses support a polytypic status of Astrodoras (Doradidae: Siluriformes)
F. H. Takagui, P. Viana, C. Haerter, Jamille de Araújo Bitencourt +7 more
2026Neotropical Ichthyology0 citations Open access
Semantic Scholar

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