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Melo BF, Conde-Saldaña CC, Villa-Navarro FA, McMahan CD, Oliveira C. Phylogeographic patterns of Cyphocharax from trans-Andean rivers and northward expansion to lower Central America (Teleostei, Curimatidae). J Fish Biol 2024. [PMID: 38757464 DOI: 10.1111/jfb.15777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 02/13/2024] [Accepted: 02/21/2024] [Indexed: 05/18/2024]
Abstract
Phylogenetic analyses of mitochondrial and nuclear data of 31 specimens of Cyphocharax from trans-Andean rivers support the presence of one lineage of Cyphocharax aspilos in Lago Maracaibo and three cryptic lineages of Cyphocharax magdalenae: (1) Cauca-Magdalena and Ranchería, (2) León and Atrato, and (3) Chucunaque-Tuira, Santa María, and Chiriquí basins of Central America. Results suggest that the Serranía del Perijá facilitated Late Miocene cladogenetic events, whereas post-Isthmian C. magdalenae expansion was enabled by gene flow across the lower Magdalena valley and Central American lowlands. Time-calibrated phylogenetics indicate that the C. magdalenae colonized lower Central America in the Pliocene (3.7 MYA; Ma), the divergence Atrato-Magdalena occurred in Late Pliocene (3.0 Ma) and the split Ranchería-Magdalena during the Middle Pleistocene (1.3 Ma). Updated geographic distribution data support the hypothesis that the Cordillera de Talamanca functions as a barrier to northward expansion of C. magdalenae in Central America.
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Affiliation(s)
- Bruno F Melo
- Department of Ichthyology, American Museum of Natural History, New York, New York, USA
| | | | | | | | - Claudio Oliveira
- Instituto de Biociências, Universidade Estadual Paulista, Botucatu, Brazil
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2
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Pandey S, Stockwell CA, Snider MR, Wisenden BD. Epidermal Club Cells in Fishes: A Case for Ecoimmunological Analysis. Int J Mol Sci 2021; 22:1440. [PMID: 33535506 DOI: 10.3390/ijms22031440] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 01/24/2021] [Accepted: 01/28/2021] [Indexed: 12/14/2022] Open
Abstract
Epidermal club cells (ECCs), along with mucus cells, are present in the skin of many fishes, particularly in the well-studied Ostariophysan family Cyprinidae. Most ECC-associated literature has focused on the potential role of ECCs as a component of chemical alarm cues released passively when a predator damages the skin of its prey, alerting nearby prey to the presence of an active predator. Because this warning system is maintained by receiver-side selection (senders are eaten), there is want of a mechanism to confer fitness benefits to the individual that invests in ECCs to explain their evolutionary origin and maintenance in this speciose group of fishes. In an attempt to understand the fitness benefits that accrue from investment in ECCs, we reviewed the phylogenetic distribution of ECCs and their histochemical properties. ECCs are found in various forms in all teleost superorders and in the chondrostei inferring either early or multiple independent origins over evolutionary time. We noted that ECCs respond to several environmental stressors/immunomodulators including parasites and pathogens, are suppressed by immunomodulators such as testosterone and cortisol, and their density covaries with food ration, demonstrating a dynamic metabolic cost to maintaining these cells. ECC density varies widely among and within fish populations, suggesting that ECCs may be a convenient tool with which to assay ecoimmunological tradeoffs between immune stress and foraging activity, reproductive state, and predator-prey interactions. Here, we review the case for ECC immune function, immune functions in fishes generally, and encourage future work describing the precise role of ECCs in the immune system and life history evolution in fishes.
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Rincon-Sandoval M, Betancur-R R, Maldonado-Ocampo JA. Comparative phylogeography of trans-Andean freshwater fishes based on genome-wide nuclear and mitochondrial markers. Mol Ecol 2019; 28:1096-1115. [PMID: 30714250 DOI: 10.1111/mec.15036] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/17/2019] [Accepted: 01/23/2019] [Indexed: 01/06/2023]
Abstract
The Neotropical region represents one of the greatest biodiversity hot spots on earth. Despite its unparalleled biodiversity, regional comparative phylogeographic studies are still scarce, with most focusing on model clades (e.g. birds) and typically examining a handful of loci. Here, we apply a genome-wide comparative phylogeographic approach to test hypotheses of codiversification of freshwater fishes in the trans-Andean region. Using target capture methods, we examined exon data for over 1,000 loci combined with complete mitochondrial genomes to study the phylogeographic history of five primary fish species (>150 individuals) collected from eight major river basins in Northwestern South America and Lower Central America. To assess their patterns of genetic structure, we inferred genealogical concordance taking into account all major aspects of phylogeography (within loci, across multiple genes, across species and among biogeographic provinces). Based on phylogeographic concordance factors, we tested four a priori biogeographic hypotheses, finding support for three of them and uncovering a novel, unexpected pattern of codiversification. The four emerging inter-riverine patterns are as follows: (a) Tuira + Atrato, (b) Ranchería + Catatumbo, (c) Magdalena system and (d) Sinú + Atrato. These patterns are interpreted as shared responses to the complex uplifting and orogenic processes that modified or sundered watersheds, allowing codiversification and speciation over geological time. We also find evidence of cryptic speciation in one of the species examined and instances of mitochondrial introgression in others. These results help further our knowledge of the historical geographic factors shaping the outstanding biodiversity of the Neotropics.
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Affiliation(s)
- Melissa Rincon-Sandoval
- Laboratorio de Ictiología, Unidad de Ecología y Sistemática (UNESIS), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia.,Department of Biology, University of Puerto Rico, San Juan, Puerto Rico
| | - Ricardo Betancur-R
- Department of Biology, University of Puerto Rico, San Juan, Puerto Rico.,Department of Biology, The University of Oklahoma, Norman, Oklahoma
| | - Javier A Maldonado-Ocampo
- Laboratorio de Ictiología, Unidad de Ecología y Sistemática (UNESIS), Departamento de Biología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
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4
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Hollander-Cohen L, Böhm B, Hausken K, Levavi-Sivan B. Ontogeny of the specificity of gonadotropin receptors and gene expression in carp. Endocr Connect 2019; 8:1433-1446. [PMID: 31581128 PMCID: PMC6826172 DOI: 10.1530/ec-19-0389] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 10/02/2019] [Indexed: 02/02/2023]
Abstract
The pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), are the principle endocrine drivers of reproductive processes in the gonads of jawed vertebrates. Canonically, FSH recruits and maintains selected ovarian follicles for maturation and LH induces the stages of germinal vesicle breakdown and ovulation. In mammals, LH and FSH specifically activate cognate G-protein-coupled receptors that affect the proteins involved in steroidogenesis, protein hormone synthesis, and gametogenesis. This dual-gonadotropin model also exists in some fish species, but not in all. In fact, due to their diverse number of species, extended number of ecological niches, and remarkably flexible reproductive strategies, fish are appropriate as models to understand the co-evolution of gonadotropins and their receptors. In this study, we cloned and characterized the expression profile over the final stages of ovarian maturation of carp (Cyprinus carpio) LHCGR and FSHR. Expression of both gonadotropin receptors increased in the later stage of early vitellogenesis, suggesting that both LH and FSH play a role in the development of mature follicles. We additionally tested the activation of cLHCGR and cFSHR using homologous and heterologous recombinant gonadotropins in order to gain insight into an evolutionary model of permissive gonadotropin receptor function. These data suggest that carp (Cyprinus carpio) gonad development and maturation depends on a specific gonadotropin profile that does not reflect the temporally distinct dual-gonadotropin model observed in salmonids or mammals, and that permissive gonadotropin receptor activation is a specific feature of Ostariophysi, not all teleosts.
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Affiliation(s)
- Lian Hollander-Cohen
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Benjamin Böhm
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Krist Hausken
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel
| | - Berta Levavi-Sivan
- Department of Animal Sciences, The Robert H. Smith Faculty of Agriculture, Food, and Environment, Hebrew University of Jerusalem, Rehovot, Israel
- Correspondence should be addressed to B Levavi-Sivan:
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Maximino C, do Carmo Silva RX, Dos Santos Campos K, de Oliveira JS, Rocha SP, Pyterson MP, Dos Santos Souza DP, Feitosa LM, Ikeda SR, Pimentel AFN, Ramos PNF, Costa BPD, Herculano AM, Rosemberg DB, Siqueira-Silva DH, Lima-Maximino M. Sensory ecology of ostariophysan alarm substances. J Fish Biol 2019; 95:274-286. [PMID: 30345536 DOI: 10.1111/jfb.13844] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 10/12/2018] [Indexed: 06/08/2023]
Abstract
Chemical communication of predation risk has evolved multiple times in fish species, with conspecific alarm substance (CAS) being the most well understood mechanism. CAS is released after epithelial damage, usually when prey fish are captured by a predator and elicits neurobehavioural adjustments in conspecifics which increase the probability of avoiding predation. As such, CAS is a partial predator stimulus, eliciting risk assessment-like and avoidance behaviours and disrupting the predation sequence. The present paper reviews the distribution and putative composition of CAS in fish and presents a model for the neural processing of these structures by the olfactory and the brain aversive systems. Applications of CAS in the behavioural neurosciences and neuropharmacology are also presented, exploiting the potential of model fish [e.g., zebrafish Danio rerio, guppies Poecilia reticulata, minnows Phoxinus phoxinus) in neurobehavioural research.
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Affiliation(s)
- Caio Maximino
- Laboratório de Neurociências e Comportamento "Frederico Guilherme Graeff", Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Nova Marabá, Brazil
| | - Rhayra X do Carmo Silva
- Laboratório de Neurociências e Comportamento "Frederico Guilherme Graeff", Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Nova Marabá, Brazil
- Programa de Pós-Graduação em Neurociências e Biologia Celular, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Kimberly Dos Santos Campos
- Laboratório de Neurofarmacologia e Biofísica, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará - Campus VIII/Marabá, Marabá, Brazil
| | - Jeisiane S de Oliveira
- Laboratório de Neurofarmacologia e Biofísica, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará - Campus VIII/Marabá, Marabá, Brazil
| | - Sueslene P Rocha
- Laboratório de Neurofarmacologia e Biofísica, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará - Campus VIII/Marabá, Marabá, Brazil
| | - Maryana P Pyterson
- Laboratório de Neurociências e Comportamento "Frederico Guilherme Graeff", Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Nova Marabá, Brazil
| | - Dainara P Dos Santos Souza
- Laboratório de Neurociências e Comportamento "Frederico Guilherme Graeff", Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Nova Marabá, Brazil
| | - Leonardo M Feitosa
- Laboratório de Neurofarmacologia e Biofísica, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará - Campus VIII/Marabá, Marabá, Brazil
| | - Saulo R Ikeda
- Laboratório de Neurofarmacologia e Biofísica, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará - Campus VIII/Marabá, Marabá, Brazil
| | - Ana F N Pimentel
- Laboratório de Neurociências e Comportamento "Frederico Guilherme Graeff", Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Nova Marabá, Brazil
| | - Pâmila N F Ramos
- Laboratório de Neurofarmacologia e Biofísica, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará - Campus VIII/Marabá, Marabá, Brazil
- Rede de Biodiversidade e Biotecnologia da Amazônia Legal, Universidade Estadual do Maranhão - Cidade Universitária Paulo VI - Predio da Veterinária, São Luis, Brazil
| | - Bruna P D Costa
- Laboratório de Neurociências e Comportamento "Frederico Guilherme Graeff", Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Nova Marabá, Brazil
- Rede de Biodiversidade e Biotecnologia da Amazônia Legal, Universidade Estadual do Maranhão - Cidade Universitária Paulo VI - Predio da Veterinária, São Luis, Brazil
| | - Anderson M Herculano
- Laboratório de Neurofarmacologia Experimental, Instituto de Ciências Biológicas, Universidade Federal do Pará, Belém, Brazil
| | - Denis B Rosemberg
- Laboratório de Neuropsicobiologia Experimental, Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Diógenes H Siqueira-Silva
- Laboratório de Neurociências e Comportamento "Frederico Guilherme Graeff", Instituto de Estudos em Saúde e Biológicas, Universidade Federal do Sul e Sudeste do Pará, Nova Marabá, Brazil
| | - Monica Lima-Maximino
- Laboratório de Neurofarmacologia e Biofísica, Departamento de Morfologia e Ciências Fisiológicas, Universidade do Estado do Pará - Campus VIII/Marabá, Marabá, Brazil
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6
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Bernt MJ, Tagliacollo VA, Albert JS. Molecular phylogeny of the ghost knifefishes (Gymnotiformes: Apteronotidae). Mol Phylogenet Evol 2019; 135:297-307. [PMID: 30844446 DOI: 10.1016/j.ympev.2019.02.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 10/27/2022]
Abstract
Ghost knifefishes (Gymnotiformes: Apteronotidae) are weakly electric fishes that possess a high-frequency, neurogenic electric organ discharge. They are found throughout the humid Neotropics from Panama to Argentina and are most diverse and abundant in the channels of large lowland rivers. Apteronotidae is the most species-rich family of Neotropical electric knifefishes with 96 valid species in 15 genera. We present a phylogenetic hypothesis based on molecular sequence data from three mitochondrial genes (16S, coi, cytb) and four nuclear loci (glyt, rag2, ryr3, zic1). Our analysis includes sequence data for 203 samples in 54 species and 14 genera, making it the most densely-sampled and data-rich phylogeny of the Apteronotidae to date. Our results corroborate previous phylogenetic hypotheses with the placement of Orthosternarchus + Sternarchorhamphus sister to all other apteronotids, a non-monophyletic Apterontotus, and a sister relationship between Sternarchorhynchus and the Navajini. We also report several novel relationships, particularly within the Navajini and among several species of the nominal genus Apteronotus not previously included in phylogenetic analyses. We additionally provide a new classification for the family.
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Affiliation(s)
- Maxwell J Bernt
- University of Louisiana at Lafayette Department of Biology, Lafayette, LA 70504-2451, USA.
| | - Victor A Tagliacollo
- Museu de Zoologia da Universidade de São Paulo, Avenida Nazaré, 481, Ipiranga, 04263-000 São Paulo, São Paulo, Brazil
| | - James S Albert
- University of Louisiana at Lafayette Department of Biology, Lafayette, LA 70504-2451, USA
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Andrade MC, Jégu M, Buckup PA, Netto-Ferreira AL. A new Myleus species (Characiformes: Serrasalmidae) from the Rio Tapajós basin, Brazil. J Fish Biol 2018; 92:1902-1914. [PMID: 29624697 DOI: 10.1111/jfb.13628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/29/2018] [Indexed: 06/08/2023]
Abstract
Myleus pachyodus, a new serrasalmid species, is described from the Rio Teles Pires and Rio Jamanxim, both tributaries of the Rio Tapajós in Mato Grosso and Pará states, Brazil. The new species differs from all congeners by having a remarkable ontogenetic thickening of the teeth shifting from slender incisiform in juveniles to thick bulky teeth at standard length ≥ 100 mm, whereas congeners present slender, antero-posteriorly flat teeth throughout all life stages. The new species further differs from congeners by having 18-20 branched dorsal-fin rays, by the lack of a diastema between contralateral outer series of premaxillary teeth and by the presence of 16-25 prepelvic spines, with the anteriormost spine never reaching the vertical through the pectoral-fin origin.
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Affiliation(s)
- M C Andrade
- Laboratório de Ictiologia do Grupo de Ecologia Aquática, and Programa de Pós-Graduação em Ecologia Aquática e Pesca, Instituto de Ciências Biológicas, Universidade Federal do Pará, Avenida Perimetral, 2651, Terra-Firme, 66077-830, Belém, PA, Brazil
| | - M Jégu
- Laboratoire d'Icthyologie, Biologie des Organismes et Ecosystèmes Aquatiques, Institut de Recherche pour le Développement, Muséum National d'Histoire Naturelle, CP26, 43 Rue Cuvier, 75231, Paris, Cedex 05, France
| | - P A Buckup
- Departamento de Vertebrados, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, 20940-040, Rio de Janeiro, RJ, Brazil
| | - A L Netto-Ferreira
- Laboratório de Ictiologia, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, 91501-970, Porto Alegre, RS, Brazil
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8
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Dutra GM, Melo BF, Netto-Ferreira AL. A new species of Curimatopsis Steindachner (Characiformes: Curimatidae) from the Rio Nhamundá, Amazon basin. J Fish Biol 2018; 92:515-522. [PMID: 29431224 DOI: 10.1111/jfb.13540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 12/15/2017] [Indexed: 06/08/2023]
Abstract
A new species of Curimatopsis is described from the Rio Nhamundá, Amazon basin in northern Brazil. The new species is distinguished from congeners by the presence of a distinctive concentration of dark pigmentation over the entire lower lobe of the caudal fin, reticulate pattern of body pigmentation, lower jaw longer than and overlapping the anterior portion of the upper jaw, crescent-shaped posterior nostril and by morphometric and meristic data. Comments on the phylogenetic position of the new species within Curimatopsis are also provided.
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Affiliation(s)
- G M Dutra
- Programa de Capacitação Institucional (PCI), Museu Paraense Emílio Goeldi, Coordenação de Zoologia, Avenida Magalhães Barata 376, 66040-170, Belém, Pará, Brazil
| | - B F Melo
- Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Rubião Júnior, Botucatu, São Paulo, Brazil
- Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, D.C, U.S.A
| | - A L Netto-Ferreira
- Programa de Capacitação Institucional (PCI), Museu Paraense Emílio Goeldi, Coordenação de Zoologia, Avenida Magalhães Barata 376, 66040-170, Belém, Pará, Brazil
- Laboratório de Ictiologia, Departamento de Zoologia, Instituto de Biociências, Universidade Federal do Rio Grande do Sul, Avenida Bento Gonçalves, 9500, 91501-970, Porto Alegre, Rio Grande do Sul, Brazil
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Stout CC, Tan M, Lemmon AR, Lemmon EM, Armbruster JW. Resolving Cypriniformes relationships using an anchored enrichment approach. BMC Evol Biol 2016; 16:244. [PMID: 27829363 PMCID: PMC5103605 DOI: 10.1186/s12862-016-0819-5] [Citation(s) in RCA: 80] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2016] [Accepted: 10/28/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cypriniformes (minnows, carps, loaches, and suckers) is the largest group of freshwater fishes in the world (~4300 described species). Despite much attention, previous attempts to elucidate relationships using molecular and morphological characters have been incongruent. In this study we present the first phylogenomic analysis using anchored hybrid enrichment for 172 taxa to represent the order (plus three out-group taxa), which is the largest dataset for the order to date (219 loci, 315,288 bp, average locus length of 1011 bp). RESULTS Concatenation analysis establishes a robust tree with 97 % of nodes at 100 % bootstrap support. Species tree analysis was highly congruent with the concatenation analysis with only two major differences: monophyly of Cobitoidei and placement of Danionidae. CONCLUSIONS Most major clades obtained in prior molecular studies were validated as monophyletic, and we provide robust resolution for the relationships among these clades for the first time. These relationships can be used as a framework for addressing a variety of evolutionary questions (e.g. phylogeography, polyploidization, diversification, trait evolution, comparative genomics) for which Cypriniformes is ideally suited.
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Affiliation(s)
- Carla C. Stout
- Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36849 USA
| | - Milton Tan
- Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36849 USA
| | - Alan R. Lemmon
- Department of Scientific Computing, Florida State University, Tallahassee, FL 32306 USA
| | - Emily Moriarty Lemmon
- Department of Biological Sciences, Florida State University, Tallahassee, FL 32306 USA
| | - Jonathan W. Armbruster
- Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL 36849 USA
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Andrade MC, Jégu M, Giarrizzo T. A new large species of Myloplus (Characiformes, Serrasalmidae) from the Rio Madeira basin, Brazil. Zookeys 2016:153-67. [PMID: 27110164 PMCID: PMC4829807 DOI: 10.3897/zookeys.571.5983] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Accepted: 01/19/2016] [Indexed: 11/12/2022] Open
Abstract
Myloplus zorroi sp. n. is described from the Rio Madeira Basin in Amazonia. The new species had been treated as an undescribed Tometes species because of the absence of a marked abdominal keel and few small spines forming its prepelvic serrae, features commonly found in the species of the Myleus clade of the Serrasalmidae (species of genera Myleus, Mylesinus, Ossubtus and Tometes) and also in species of Utiaritichthys. Myloplus zorroi sp. n. shares the following characters with its congeners and Utiaritichthys: molariform teeth (versus incisiform teeth in Myleus clade members); a labial row of premaxillary teeth separated from lingual row by an internal gap (versus absence of internal gap between premaxillary teeth rows); and an ascending process of premaxilla wide from its base to the tip (versus ascending process tapering from its base to the tip). Like other Myloplus species, Myloplus zorroi sp. n. differs from Utiariticthys by having a deeper body, approximately 60% of standard length (versus usually less than 50% of standard length). Considering all the morphological evidence, including the presence of 13-19 low spines forming the prepelvic serrae in Myloplus zorroi sp. n. versus more than 20 high spines forming a marked prepelvic keel in other species of Mylopus, the new species is here assigned to Myloplus. Comparisons of the new species with nominal species of Myloplus, representatives of the Myleus clade, and other related taxa are provided.
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Affiliation(s)
- Marcelo C Andrade
- Universidade Federal do Pará, Cidade Universitária Prof. José Silveira Netto. Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática. Avenida Perimetral, 2651, Terra Firme, 66077830. Belém, PA, Brazil; Programa de Pós-Graduação em Ecologia Aquática e Pesca. Universidade Federal do Pará, Instituto de Ciências Biológicas. Cidade Universitária Prof. José Silveira Netto. Avenida Augusto Corrêa, 1, Guamá, 66075110. Belém, PA, Brazil
| | - Michel Jégu
- Institut de Recherche pour le Développement, Biologie des Organismes et Ecosystèmes Aquatiques, UMR BOREA, Laboratoire d´Icthyologie, Muséum national d'Histoire naturelle, MNHN, CP26, 43 rue Cuvier, 75231 Paris Cedex 05, France
| | - Tommaso Giarrizzo
- Universidade Federal do Pará, Cidade Universitária Prof. José Silveira Netto. Laboratório de Biologia Pesqueira e Manejo dos Recursos Aquáticos, Grupo de Ecologia Aquática. Avenida Perimetral, 2651, Terra Firme, 66077830. Belém, PA, Brazil; Programa de Pós-Graduação em Ecologia Aquática e Pesca. Universidade Federal do Pará, Instituto de Ciências Biológicas. Cidade Universitária Prof. José Silveira Netto. Avenida Augusto Corrêa, 1, Guamá, 66075110. Belém, PA, Brazil; Programa de Pós-Graduação em Biodiversidade e Conservação. Universidade Federal do Pará, Faculdade de Ciências Biológicas. Avenida Cel. José Porfírio, 2515, São Sebastião, 68372010. Altamira, PA, Brazil
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Birindelli JLO, Sarmento-Soares LM, Lima FCT. A new species of Centromochlus (Siluriformes, Auchenipteridae, Centromochlinae) from the middle Rio Tocantins basin, Brazil. J Fish Biol 2015; 87:860-875. [PMID: 26287270 DOI: 10.1111/jfb.12750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 06/18/2015] [Indexed: 06/04/2023]
Abstract
A new species of the catfish genus Centromochlus (Auchenipteridae, Centromochlinae) is described. The new species is diagnosed by having numerous dark rounded blotches over the body and fins, dorsal-fin spine with serrations anteriorly and smooth posteriorly, anal fin of mature males with three unbranched and seven branched rays, anterior nuchal plate absent and posterior nuchal plate not extended ventrally. The new species is described from a small stream in the Estação Ecológica Serra Geral de Tocantins, a natural reserve in the centre of the Brazilian Cerrado, close to the watershed between the Rio Tocantins and the Rio São Francisco basins. The new species is possibly the sister taxon to the recently described Centromochlus meridionalis from the upper Rio Tapajós. Those two species share with Centromochlus perugiae, from the upper Amazon and upper Paraguay, derived features associated with the modified anal fin in sexually mature males.
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Affiliation(s)
- J L O Birindelli
- Departamento de Biologia Animal e Vegetal, Universidade Estadual de Londrina, Caixa Postal 10011, 86057-970, Londrina, PR, Brazil
| | - L M Sarmento-Soares
- Instituto Nacional da Mata Atlântica, Av. José Ruschi, 4, Centro, 29650-000, Santa Teresa, ES, Brazil
- Programa de Pós-Graduação em Biologia Animal, Universidade Federal do Espírito Santo, Av. Marechal Campos, 1468, Prédio da Biologia, Campus de Maruípe, 29043-900, Vitória, ES, Brazil
| | - F C T Lima
- Museu de Zoologia da Universidade Estadual de Campinas "Adão José Cardoso", Caixa Postal 6109, 13083-863, Campinas, SP, Brazil
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Carvalho M, Vari RP. Development of the splanchnocranium in Prochilodus argenteus (Teleostei: Characiformes) with a discussion of the basal developmental patterns in the Otophysi. ZOOLOGY 2015; 118:34-50. [PMID: 25595854 DOI: 10.1016/j.zool.2014.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 09/23/2014] [Accepted: 10/11/2014] [Indexed: 11/18/2022]
Abstract
Development of the mandibular, hyoid and gill arches, which constitute the splanchnocranium, are described for Prochilodus argenteus, order Characiformes, one of the basal lineages of the Otophysi. Development was examined from just hatched larvae through juveniles using whole specimens cleared and counterstained for cartilage and bone as well as histological preparations. Observations are compared with the developmental trends reported for Cypriniformes, the basalmost clade of the Otophysi. Shortened developmental sequences for Prochilodus compared to the cypriniform Catostomus were discovered in the ontogeny of the ceratohyals, ceratobranchials 1-5, epibranchials 1-4 and the symplectic portion of the hyosymplectic. Prochilodus also differs from Catostomus in having the basihyal plus the anterior copula appearing at different stages of ontogeny rather than simultaneously. Contrary to previous assumptions, developmental information indicates that hypobranchial 4 as well as likely basibranchial 5 are present in Prochilodus. Various developmental patterns in Prochilodus considered basal for the Otophysi, the predominant component of the Ostariophysi, are likely conserved from patterns prevalent in basal groups in the Actinopterygii.
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Affiliation(s)
- Murilo Carvalho
- Laboratório de Ictiologia de Ribeirão Preto (LIRP), Departamento de Biologia, Universidade de São Paulo, PPG Biologia Comparada, Av. Bandeirantes, 3900, 14040-901 Ribeirão Preto, SP, Brazil.
| | - Richard P Vari
- Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, PO Box 37012, MRC 159, Washington, DC 20013-7012, USA
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Roxo FF, Silva GSC, Zawadzki CH, Oliveira C. Neoplecostomus doceensis: a new loricariid species (Teleostei, Siluriformes) from the rio Doce basin and comments about its putative origin. Zookeys 2014; 440:115-27. [PMID: 25317064 PMCID: PMC4195942 DOI: 10.3897/zookeys.440.8203] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 09/04/2014] [Indexed: 11/12/2022] Open
Abstract
A new species of Neoplecostomus is described from the rio Doce basin representing the first species of this genus in the basin. The new species is distinguished from its congeners by having enlarged, fleshy folds between dentaries, two or three series of developed papillae anterior to premaxillary teeth and a adipose-fin membrane present, and by lacking enlarged odontodes along snout lateral margins in mature males, a well-developed dorsal-fin spinelet wider than dorsal-fin spine base, lower number of lateral-line figs and developed membrane on the dorsal portion of the first, second and third pelvic-fin branched rays. Additionally, we present a brief discussion of biogeographic scenarios that may explain the distribution of the new species in the rio Doce basin. We suggested that the ancestral lineage of the new species reached the rio Doce from the upper portions of rio Paraná drainages about 3.5 Mya (95% HPD: 1.6-5.5) indicating a colonization route of the N. doceensis ancestral lineage from the south end of Serra do Espinhaço, probably as a result of headwater capture processes between the upper rio Paraná and rio Doce basins.
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Affiliation(s)
- Fábio F. Roxo
- Universidade Estadual Paulista, UNESP, Departamento de Morfologia, Laboratório de Biologia e Genética de Peixes, 18618-000, Botucatu,São Paulo State, Brazil
| | - Gabriel S. C. Silva
- Universidade Estadual Paulista, UNESP, Departamento de Morfologia, Laboratório de Biologia e Genética de Peixes, 18618-000, Botucatu,São Paulo State, Brazil
| | - Cláudio H. Zawadzki
- Universidade Estadual de Maringá, Departamento de Biologia, Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), 87020-900, Maringá, Paraná State, Brazil
| | - Claudio Oliveira
- Universidade Estadual Paulista, UNESP, Departamento de Morfologia, Laboratório de Biologia e Genética de Peixes, 18618-000, Botucatu,São Paulo State, Brazil
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Mazzoni TS, Grier HJ, Quagio-Grassiotto I. Male gonadal differentiation and the paedomorphic evolution of the testis in Teleostei. Anat Rec (Hoboken) 2014; 297:1137-62. [PMID: 24740886 DOI: 10.1002/ar.22915] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2013] [Revised: 01/31/2014] [Accepted: 02/17/2014] [Indexed: 11/08/2022]
Abstract
Testis differentiation from representatives of the Otophysi (Cyprinus carpio), Percomorpha (Amatitlania nigrofasciata), and Atherinomorpha (Poecilia reticulata) was comparatively described. In the undifferentiated gonad of C. carpio, the primordial germ cells (PGCs) are scattered throughout the gonads while in A. nigrofasciata and P. reticulata the PGCs are restricted to the ventral periphery. In the dorsal region of the developing gonads, with the exception of C. carpio, somatic cell rearrangements result in the differentiation of the sperm duct. Pre-Sertoli cells wrap around single spermatogonia forming cysts that proliferate forming acinar-clusters. In C. carpio and A. nigrofasciata, the cysts in each acinar-cluster move away from each other, creating a central lumen. In C. carpio, the acinar-clusters then fuse to each other forming tubules that become lined by the germinal epithelium. Subsequently, the tubules anastomose dorsally and create the sperm duct. In A. nigrofasciata, the acinar-clusters elongate, forming lobules that individually connect to the sperm duct. These are lined by the germinal epithelium. In P. reticulata, the spermatogonial cysts remain in the acinar-cluster organization. Subsequently, developing ducts connect each cluster to the sperm duct and lobules subsequently develop. In the differentiated testis of C. carpio and A. nigrofasciata, spermatogonia are distributed along the lengths of the anastomosing tubules or lobules, respectively. However, in P. reticulata, the spermatogonia remain restricted to the terminal end of the lobules. Considering testis ontogeny, the spermatogonial acinar-cluster is the adult characteristic of more derived taxa that approximate the early gonad developmental stages of the basal taxa.
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Affiliation(s)
- Talita Sarah Mazzoni
- Graduate Program on the Cell and Structural Biology, Instituto de Biologia, Unicamp, Campinas-SP, Brasil; Departamento de Morfologia, Instituto de Biociências de Botucatu, Unesp, Botucatu-SP, Brasil
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Birindelli JLO, Britski HA. Two new species of Leporinus (Characiformes: Anostomidae) from the Brazilian Amazon, and redescription of Leporinus striatus Kner 1858. J Fish Biol 2013; 83:1128-1160. [PMID: 24580659 DOI: 10.1111/jfb.12206] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2012] [Accepted: 06/24/2013] [Indexed: 06/03/2023]
Abstract
Two new species of Leporinus are described from tributaries of the Rio Amazonas in Brazil. One species is known from the Jari and Tapajós River basins, and is identified on the basis of a gas bladder reduced in size, a dark midlateral stripe on the body, dark transverse bars on the dorsum, a subinferior mouth, three teeth on the premaxilla, four teeth on the dentary and 16 scale rows around the caudal peduncle. The second new species is known from the Tocantins, Xingu and Tapajós River basins, and is identified on the basis of three dark longitudinal stripes on the body, a subinferior mouth, three teeth on the premaxilla, four teeth on the dentary and 12 scale rows around the caudal peduncle. In addition, Leporinus striatus is redescribed based on type and additional specimens from the Río de La Plata, Amazonas, Orinoco, Atrato, Magdalena and Sinu River basins. Leporinus striatus is identified on the basis of four dark longitudinal stripes on the body, a subterminal mouth, three teeth on the premaxilla, four teeth on the dentary and 16 scale rows around the caudal peduncle.
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Affiliation(s)
- J L O Birindelli
- Museu de Zoologia da Universidade de São Paulo, Caixa Postal 42494, 04218-970, São Paulo, SP, Brazil
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