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Kowalski S, Haerter CAG, Perin DP, Takagui FH, Viana PF, Feldberg E, Blanco DR, Traldi JB, Giuliano-Caetano L, Lui RL. Karyotypic characterization of Centromochlus schultzi Rössel 1962 (Auchenipteridae, Centromochlinae) from the Xingu River basin: New inferences on chromosomal evolution in Centromochlus. Genet Mol Biol 2024; 47:e20230105. [PMID: 38530404 PMCID: PMC10993310 DOI: 10.1590/1678-4685-gmb-2023-0105] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 08/20/2023] [Indexed: 03/28/2024] Open
Abstract
Centromochlinae is a widely diverse subfamily with more than 50 species and several taxonomic conflicts due to morphological similarity between Tatia and Centromochlus species. However, cytogenetic studies on this group have been limited to only four species so far. Therefore, here we present the karyotype of Centromochlus schultzi from the Xingu River in Brazil using classic cytogenetic techniques, physical mapping of the 5S and 18S rDNAs, and telomeric sequences (TTAGGG)n. The species had 58 chromosomes, simple NORs and 18S rDNA sites. Heterochromatic regions were detected on the terminal position of most chromosomes, including pericentromeric and centromeric blocks that correspond to interstitial telomeric sites. The 5S rDNA had multiple sites, including a synteny with the 18S rDNA in the pair 24st, which is an ancestral feature for Doradidae, sister group of Auchenipteridae, but appears to be a homoplastic trait in this species. So far, C. schultzi is only the second species within Centromochlus to be karyotyped, but it has already presented characteristics with great potential to assist in future discussions on taxonomic issues in the subfamily Centromochlinae, including the first synteny between rDNAs in Auchenipteridae and also the presence of heterochromatic ITSs that could represent remnants of ancient chromosomal fusions.
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Affiliation(s)
- Samantha Kowalski
- Universidade Estadual de Londrina, Centro de Ciências Biológicas,
Londrina, PR, Brazil
- Universidade Estadual do Oeste do Paraná, Centro de Ciências
Biológicas e da Saúde, Cascavel, PR, Brazil
| | - Chrystian Aparecido Grillo Haerter
- Universidade Estadual do Oeste do Paraná, Centro de Ciências
Biológicas e da Saúde, Cascavel, PR, Brazil
- Instituto Nacional de Pesquisas da Amazônia, Coordenação de
Biodiversidade, Manaus, AM, Brazil
| | - Diana Paula Perin
- Universidade Estadual do Oeste do Paraná, Centro de Ciências
Biológicas e da Saúde, Cascavel, PR, Brazil
| | - Fábio Hiroshi Takagui
- Instituto Nacional de Pesquisas da Amazônia, Coordenação de
Biodiversidade, Manaus, AM, Brazil
| | - Patrik Ferreira Viana
- Instituto Nacional de Pesquisas da Amazônia, Coordenação de
Biodiversidade, Manaus, AM, Brazil
| | - Eliana Feldberg
- Instituto Nacional de Pesquisas da Amazônia, Coordenação de
Biodiversidade, Manaus, AM, Brazil
| | | | | | | | - Roberto Laridondo Lui
- Universidade Estadual do Oeste do Paraná, Centro de Ciências
Biológicas e da Saúde, Cascavel, PR, Brazil
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Haerter CAG, Blanco DR, Traldi JB, Feldberg E, Margarido VP, Lui RL. Are scattered microsatellites weak chromosomal markers? Guided mapping reveals new insights into Trachelyopterus (Siluriformes: Auchenipteridae) diversity. PLoS One 2023; 18:e0285388. [PMID: 37310952 DOI: 10.1371/journal.pone.0285388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 04/22/2023] [Indexed: 06/15/2023] Open
Abstract
The scattered distribution pattern of microsatellites is a challenging problem in fish cytogenetics. This type of array hinders the identification of useful patterns and the comparison between species, often resulting in over-limited interpretations that only label it as "scattered" or "widely distributed". However, several studies have shown that the distribution pattern of microsatellites is non-random. Thus, here we tested whether a scattered microsatellite could have distinct distribution patterns on homeologous chromosomes of closely related species. The clustered sites of 18S and 5S rDNA, U2 snRNA and H3/H4 histone genes were used as a guide to compare the (GATA)n microsatellite distribution pattern on the homeologous chromosomes of six Trachelyopterus species: T. coriaceus and Trachelyopterus aff. galeatus from the Araguaia River basin; T. striatulus, T. galeatus and T. porosus from the Amazonas River basin; and Trachelyopterus aff. coriaceus from the Paraguay River basin. Most species had similar patterns of the (GATA)n microsatellite in the histone genes and 5S rDNA carriers. However, we have found a chromosomal polymorphism of the (GATA)n sequence in the 18S rDNA carriers of Trachelyopterus galeatus, which is in Hard-Weinberg equilibrium and possibly originated through amplification events; and a chromosome polymorphism in Trachelyopterus aff. galeatus, which combined with an inversion polymorphism of the U2 snRNA in the same chromosome pair resulted in six possible cytotypes, which are in Hardy-Weinberg disequilibrium. Therefore, comparing the distribution pattern on homeologous chromosomes across the species, using gene clusters as a guide to identify it, seems to be an effective way to further the analysis of scattered microsatellites in fish cytogenetics.
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Affiliation(s)
| | | | - Josiane Baccarin Traldi
- Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brasil
| | | | - Vladimir Pavan Margarido
- Universidade Estadual do Oeste do Paraná, Centro de Ciências Biológicas e da Saúde, Cascavel, Paraná, Brasil
| | - Roberto Laridondo Lui
- Universidade Estadual do Oeste do Paraná, Centro de Ciências Biológicas e da Saúde, Cascavel, Paraná, Brasil
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Lira NL, Tonello S, Lui RL, Traldi JB, Brandão H, Oliveira C, Blanco DR. Identifying fish eggs and larvae: from classic methodologies to DNA metabarcoding. Mol Biol Rep 2023; 50:1713-1726. [PMID: 36418775 DOI: 10.1007/s11033-022-08091-9] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2022]
Abstract
Studies involving fish eggs and larvae date back to the end of the nineteenth century. Since then, studies with ichthyoplankton have proved to be an essential tool, generating information for the knowledge of the ichthyofauna and the environmental inventory. Most of these studies reveal the difficulty of obtaining a precise taxonomic identification of the collected materials, making research with ichthyoplankton extremely challenging. With the advent of molecular biology, the use of markers such as COI enabled greater taxonomic precision, helping to understand events involving ichthyofauna. Now we can observe the evolution of the molecular identification tool for ichthyoplankton via DNA barcoding, which has been increasingly used over the last few decades. From 2000 to 2010, we found six publications; from 2011 to 2021, 75 papers were published, and in 2022 four studies. Our survey also showed the accuracy of molecular identification when compared to the taxonomic identification of these. In this review, we show the state of the art of studies that used barcode and DNA metabarcoding to identify fish eggs and larvae in different environments and discuss their importance as the best practice for working with these organisms.
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Affiliation(s)
- Natália Lima Lira
- Programa de Pós-Graduação em Recursos Naturais e Sustentabilidade, Universidade Tecnológica Federal do Paraná, Prolongamento da Rua Cerejeira, S/N, Santa Helena, PR, 85892-000, Brazil.
| | - Sandro Tonello
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia, Av. André Araújo, 2936, Aleixo, Manaus, AM, 69080-971, Brazil
| | - Roberto Laridondo Lui
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, R. Universitária, 1619, Cascavel, PR, 85819-170, Brazil
| | - Josiane Baccarin Traldi
- Instituto de Ciências Biológicas, Departamento de Genética, Universidade Federal do Amazonas, Av. General Rodrigo Octavio, 6200, Manaus, AM, 69080-900, Brazil
| | - Heleno Brandão
- Programa de Pós-Graduação em Recursos Naturais e Sustentabilidade, Universidade Tecnológica Federal do Paraná, Prolongamento da Rua Cerejeira, S/N, Santa Helena, PR, 85892-000, Brazil
| | - Claudio Oliveira
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, R. Prof. Dr. Antônio C. W. Zanin, 250, Botucatu, SP, 18618-689, Brazil
| | - Daniel Rodrigues Blanco
- Programa de Pós-Graduação em Recursos Naturais e Sustentabilidade, Universidade Tecnológica Federal do Paraná, Prolongamento da Rua Cerejeira, S/N, Santa Helena, PR, 85892-000, Brazil
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Takagui FH, Baumgärtner L, Viana P, Lima MCC, Bitencourt JDA, Venere PC, Lui RL, Moreira-Filho O, Feldberg E, Almeida Simões F, Birindelli JL, Giuliano-Caetano L. Karyotype Evolution of Talking Thorny Catfishes Anadoras (Doradidae, Astrodoradinae): A Process Mediated by Structural Rearrangements and Intense Reorganization of Repetitive DNAs. Cytogenet Genome Res 2022; 162:64-75. [PMID: 35500552 DOI: 10.1159/000523747] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 02/17/2022] [Indexed: 11/19/2022] Open
Abstract
Anadoras is a thorny catfish genus widespread through the Amazon and Paraguay river basins. It includes 2 nominal species, A. grypus and A. weddellii, plus Anadoras sp. "araguaia," an undescribed species only recognized morphologically. Since Anadoras occupies a basal position within the Astrodoradinae phylogeny, it is crucial to identify its cytogenetic features to comprehend the mechanisms involved in the chromosomal diversification of this subfamily. Therefore, we performed a comparative cytogenetic analysis including all species of Anadoras. Furthermore, we applied a species delimitation analysis based on 600 bp of the mitochondrial cytochrome oxidase subunit 1 (CO1) gene to investigate the taxonomic status of the species. Cytogenetic markers revealed a high degree of similarity among Anadoras weddellii and Anadoras sp. "araguaia," both have 2n = 56 chromosomes (24m + 10sm + 22st/a), single NOR sites on acrocentric pair 28, and 5S rDNA sites on submetacentric pair 15. A. grypus has the most divergent chromosomal characteristics because, even though it also has 2n = 56 chromosomes, it exhibits several differences in the chromosome formula, heterochromatin distribution, and number/position of the rDNA sites. In sum, we believe that the chromosome diversification of Anadoras is due to 4 mechanisms: centric fusion, pericentric/paracentric inversions, nonreciprocal translocations, and activity of transposable elements. Additionally, our phylogenetic tree revealed well-supported clades and, by barcode species delimitation analysis, confirmed the existence of 3 molecular operational taxonomic units, including the putative new species Anadoras sp. "araguaia."
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Affiliation(s)
- Fábio Hiroshi Takagui
- Laboratory of Animal Cytogenetics, Department of General Biology, CCB, State University of Londrina, Londrina, Brazil
| | - Lucas Baumgärtner
- Cytogenetic Laboratory, Center of Biological and Health Sciences, State University of Western Paraná, Cascavel, Brazil
| | - Patrik Viana
- Laboratory of Animal Genetics, National Institute of Amazonian Research, Manaus, Brazil
| | - Moema C C Lima
- Laboratory of Genetics and Animal Ecology, Department of General Biology, CCB, State University of Londrina, Londrina, Brazil
| | - Jamille de A Bitencourt
- Cytogenetic Laboratory, Department of Biological Sciences, State University of Southwest of Bahia, Jequié, Brazil
| | - Paulo Cesar Venere
- Laboratory of Animal Cytogenetics and Genetics, Federal University of Mato Grosso, Cuiabá, Brazil
| | - Roberto Laridondo Lui
- Cytogenetic Laboratory, Center of Biological and Health Sciences, State University of Western Paraná, Cascavel, Brazil
| | - Orlando Moreira-Filho
- Laboratory of Molecular Biodiversity and Conservation, Department of Genetics and Evolution, Federal University of São Carlos, São Carlos, Brazil
| | - Eliana Feldberg
- Laboratory of Animal Genetics, National Institute of Amazonian Research, Manaus, Brazil
| | - Fernanda Almeida Simões
- Laboratory of Genetics and Animal Ecology, Department of General Biology, CCB, State University of Londrina, Londrina, Brazil
| | - José Luis Birindelli
- Museum of Zoology, Department of Animal and Plant Biology, CCB, Londrina State University, Londrina, Brazil
| | - Lucia Giuliano-Caetano
- Laboratory of Animal Cytogenetics, Department of General Biology, CCB, State University of Londrina, Londrina, Brazil
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Takagui FH, Viana P, Baumgärtner L, Bitencourt JA, Margarido VP, Lui RL, Feldberg E, Birindelli JLO, Almeida FS, Giuliano-Caetano L. Reconstruction of the Doradinae (Siluriformes-Doradidae) ancestral diploid number and NOR pattern reveals new insights about the karyotypic diversification of the Neotropical thorny catfishes. Genet Mol Biol 2021; 44:e20200068. [PMID: 34821336 PMCID: PMC8612126 DOI: 10.1590/1678-4685-gmb-2020-0068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Accepted: 04/04/2021] [Indexed: 11/23/2022] Open
Abstract
Doradinae (Siluriformes: Doradidae) is the most species-rich subfamily among
thorny catfishes, encompassing over 77 valid species, found mainly in Amazon and
Platina hydrographic basins. Here, we analyzed seven Doradinae species using
combined methods (e.g., cytogenetic tools and Mesquite ancestral reconstruction
software) in order to scrutinize the processes that mediated the karyotype
diversification in this subfamily. Our ancestral reconstruction recovered that
2n=58 chromosomes and simple nucleolar organizer regions (NOR) are ancestral
features only for Wertheimerinae and the most clades of Doradinae. Some
exceptions were found in Trachydoras paraguayensis (2n=56),
Trachydoras steindachneri (2n=60), Ossancora
punctata (2n=66) and Platydoras hancockii whose
karyotypes showed a multiple NOR system. The large thorny catfishes, such as
Pterodoras granulosus, Oxydoras niger and
Centrodoras brachiatus share several karyotype features,
with subtle variations only regarding their heterochromatin distribution. On the
other hand, a remarkable karyotypic variability has been reported in the
fimbriate barbells thorny catfishes. These two contrasting karyoevolution
trajectories emerged from a complex interaction between chromosome
rearrangements (e.g., inversions and Robertsonian translocations) and mechanisms
of heterochromatin dispersion. Moreover, we believe that biological features,
such as microhabitats preferences, populational size, low vagility and migratory
behavior played a key role during the origin and maintenance of chromosome
diversity in Doradinae subfamily.
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Affiliation(s)
- Fábio H Takagui
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Citogenética Animal, Londrina, PR, Brazil
| | - Patrik Viana
- Instituto Nacional de Pesquisas da Amazônia, Laboratório de Genética Animal, Manaus, AM, Brazil
| | - Lucas Baumgärtner
- Universidade Estadual do Oeste do Paraná, Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Cascavel, PR, Brazil
| | - Jamille A Bitencourt
- Universidade Estadual do Sudoeste da Bahia, Departamento de Ciências Biológicas, Laboratório de Citogenética, Jequié, BA, Brazil
| | - Vladimir Pavan Margarido
- Universidade Estadual do Oeste do Paraná, Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Cascavel, PR, Brazil
| | - Roberto Laridondo Lui
- Universidade Estadual do Oeste do Paraná, Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Cascavel, PR, Brazil
| | - Eliana Feldberg
- Instituto Nacional de Pesquisas da Amazônia, Laboratório de Genética Animal, Manaus, AM, Brazil
| | - Jose Luis Olivan Birindelli
- Universidade Estadual de Londrina, Departamento de Biologia Animal e Vegetal, Museu de Zoologia, Londrina, PR, Brazil
| | - Fernanda Simões Almeida
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Genética e Ecologia Animal, Londrina, PR, Brazil
| | - Lucia Giuliano-Caetano
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Citogenética Animal, Londrina, PR, Brazil
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Santos DPD, Felicetti D, Baumgärtner L, Margarido VP, Blanco DR, Moreira-Filho O, Lui RL. Contributions to the taxonomy of Trachelyopterus (Siluriformes): comparative cytogenetic analysis in three species of Auchenipteridae. Neotrop ichthyol 2021. [DOI: 10.1590/1982-0224-2020-0115] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT Auchenipteridae is divided into subfamilies Centromochlinae and Auchenipterinae. Parauchenipterus is included in the latter and is subject of taxonomic discussions concerning its validation or synonymization with Trachelyopterus. Herein, three species from two hydrographic basins were cytogenetically analyzed: Parauchenipterus striatulus from Doce River and two sympatric species, P. galeatus and Trachelyopterus coriaceus, from the Araguaia River. Diploid number of 58 chromosomes was verified for all species, but P. striatulus has different karyotype formula from the others. The three species have heterochromatin located in terminal regions of almost all chromosomes and in pericentromeric region on acrocentric chromosomes. Simple NORs was verified on a subtelocentric chromosome for all species. 5S rDNA sites were detected in three submetacentric chromosome pairs in P. striatulus; in a metacentric chromosome pair and submetacentric pair in T. coriaceus; and in one metacentric chromosome pair in P. galeatus. The similarities found in the karyotypes of the three species suggest the existence of only one genus, Trachelyopterus; therefore, our data refutes the validation of Parauchenipterus. Moreover, the differences in 5S rDNA distribution in P. galeatus in comparison with other populations already studied, indicate the existence of a new taxonomic unit, which suggests a species complex in P. galeatus.
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Piscor D, Paiz LM, Baumgärtner L, Cerqueira FJ, Fernandes CA, Lui RL, Parise-Maltempi PP, Margarido VP. Chromosomal mapping of repetitive sequences in Hyphessobrycon eques (Characiformes, Characidae): a special case of the spreading of 5S rDNA clusters in a genome. Genetica 2020; 148:25-32. [PMID: 31997050 DOI: 10.1007/s10709-020-00086-3] [Citation(s) in RCA: 6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 10/28/2019] [Accepted: 01/20/2020] [Indexed: 01/23/2023]
Abstract
Cytogenetic data showed a variation in diploid chromosome number in the genus Hyphessobrycon ranging from 2n = 46 to 52, and studies involving repetitive DNA sequences are scarce in representatives of this genus. The purpose of this paper was the chromosomal mapping of repetitive sequences (rDNA, histone genes, U snDNA and microsatellites) and investigation of the amplification of 5S rDNA clusters in the Hyphessobrycon eques genome. Two H. eques populations displayed 2n = 52 chromosomes, with the acrocentric pair No. 24 bearing Ag-NORs corresponding with CMA3+/DAPI-. FISH with a 18S rDNA probe identified the NORs on the short (p) arms of the acrocentric pairs Nos. 22 and 24. The 5S rDNA probe visualized signals on almost all chromosomes in genomes of individuals from both populations (40 signals); FISH with H3 histone probe identified two chromosome pairs, with the pericentromeric location of signals; FISH with a U2 snDNA probe identified one chromosome pair bearing signals, on the interstitial chromosomal region. The mononucleotide (A), dinucleotide (CA) and tetranucleotide (GATA) repeats were observed on the centromeric/pericentromeric and/or terminal positions of all chromosomes, while the trinucleotide (CAG) repeat showed signals on few chromosomes. Molecular analysis of 5S rDNA and non-transcribed spacers (NTS) showed microsatellites (GATA and A repeats) and a fragment of retrotransposon (SINE3/5S-Sauria) inside the sequences. This study expanded the available cytogenetic data for H. eques and demonstrated to the dispersion of the 5S rDNA sequences on almost all chromosomes.
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Affiliation(s)
- Diovani Piscor
- Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária, 2069, Cascavel, PR, ZIP: 85819-110, Brazil. .,Universidade Estadual de Mato Grosso do Sul (UEMS), Unidade de Mundo Novo, BR 163, Km 20.2, Mundo Novo, MS, ZIP: 79980-000, Brazil.
| | - Leonardo Marcel Paiz
- Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária, 2069, Cascavel, PR, ZIP: 85819-110, Brazil
| | - Lucas Baumgärtner
- Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária, 2069, Cascavel, PR, ZIP: 85819-110, Brazil
| | - Fiorindo José Cerqueira
- Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária, 2069, Cascavel, PR, ZIP: 85819-110, Brazil
| | - Carlos Alexandre Fernandes
- Universidade Estadual de Mato Grosso do Sul (UEMS), Unidade de Mundo Novo, BR 163, Km 20.2, Mundo Novo, MS, ZIP: 79980-000, Brazil
| | - Roberto Laridondo Lui
- Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária, 2069, Cascavel, PR, ZIP: 85819-110, Brazil
| | - Patricia Pasquali Parise-Maltempi
- Instituto de Biociências, Departamento de Biologia, Laboratório de Citogenética, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Av. 24A, 1515, Rio Claro, SP, ZIP: 13506-900, Brazil
| | - Vladimir Pavan Margarido
- Centro de Ciências Biológicas e da Saúde, Laboratório de Citogenética, Universidade Estadual do Oeste do Paraná (UNIOESTE), Rua Universitária, 2069, Cascavel, PR, ZIP: 85819-110, Brazil
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Kowalski S, Paiz LM, da Silva M, Machado ADS, Feldberg E, Traldi JB, Margarido VP, Lui RL. Chromosomal analysis of Centromochlus heckelii (Siluriformes: Auchenipteridae), with a contribution to Centromochlus definition. Neotrop ichthyol 2020. [DOI: 10.1590/1982-0224-2020-0009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT Historically, there are divergences in the species allocation between Centromochlus and Tatia. This study aimed to generate the first cytogenetic data about Centromochlus and, by analyzing a population of Centromochlus heckelii from the Amazon River basin, to contribute as evidence to a historical taxonomic dilemma. Diploid number of 46 chromosomes and a heteromorphic pair was found in the female karyotypes, thus characterizing a ZZ/ZW sex chromosome system. Pale blocks of heterochromatin were located in centromeric regions of some chromosomes; however, the exclusive female chromosome (W) is almost entirely heterochromatic. AgNORs were detected in terminal position on the short arms of one acrocentric pair in males and two chromosome pairs in females, the acrocentric plus the sex chromosome pair. Notable differences between Centromochlus heckelii and previous data about species of Tatia are: lower diploid number, presence of a sex chromosome system and multiple AgNORs in Centromochlus, while species of Tatia have simple AgNORs and the absence of acrocentric chromosomes. Results in this study show that chromosomal markers could contribute as evidence to taxonomic delimitation studies.
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Takagui FH, Baumgärtner L, Baldissera JN, Laridondo Lui R, Margarido VP, Fonteles SBA, Garcia C, Birindelli JO, Moreira-Filho O, Almeida FS, Giuliano-Caetano L. Chromosomal Diversity of Thorny Catfishes (Siluriformes-Doradidae): A Case of Allopatric Speciation Among Wertheimerinae Species of São Francisco and Brazilian Eastern Coastal Drainages. Zebrafish 2019; 16:477-485. [PMID: 31453759 DOI: 10.1089/zeb.2019.1769] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Wertheimerinae is a small subfamily of thorny catfish composed of two species found in eastern Brazilian coastal drainages: Wertheimeria maculata and Kalyptodoras bahiensis. According to molecular phylogenetic analysis, Franciscodoras marmoratus an endemic species of the São Francisco River is also a member of this subfamily. Even though both phylogenetic approaches suggest that this group is one of the oldest lineages of the Doradidae, a disagreement remains about the constitution of Wertheimerinae. Hence, cytogenetic analysis is important to understand the karyotypic evolution of thorny catfish and can be a useful cytotaxonomic tool to clarify the relationships between these species. All Wertheimerinae species, and F. marmoratus here analyzed, shared 2n = 58 chromosomes, karyotypic formulas (24m+12sm +8st +14a), and nucleolus organizer region (NOR) pattern (terminal 18S rDNA sites on pair 22). Differences were noted in heterochromatin and 5S rDNA site distribution. The chromosomal markers here applied added to the molecular data, reinforcing that these three species actually represent a well-resolved taxonomic unit. Our results represent one more evidence of the ancient connectivity between eastern coastal drainages and São Francisco River, whose separation represented an important event for the allopatric speciation that produced the current forms of Wertheimerinae subfamily.
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Affiliation(s)
- Fábio Hiroshi Takagui
- Animal Cytogenetics Laboratory, Department of General Biology, Biological Sciences Center, Londrina State University, Londrina, Brazil
| | - Lucas Baumgärtner
- Cytogenetic Laboratory, Center for Biological and Health Sciences, Western Paraná State University, Cascavel, Brazil
| | - Joana Neres Baldissera
- Animal Cytogenetics Laboratory, Department of General Biology, Biological Sciences Center, Londrina State University, Londrina, Brazil
| | - Roberto Laridondo Lui
- Cytogenetic Laboratory, Center for Biological and Health Sciences, Western Paraná State University, Cascavel, Brazil
| | - Vladimir Pavan Margarido
- Cytogenetic Laboratory, Center for Biological and Health Sciences, Western Paraná State University, Cascavel, Brazil
| | - Soraia Barreto Aguiar Fonteles
- Genetics of Aquatic Organisms Laboratory, Center for Agrarian Environmental and Biological Sciences, Federal University of Recôncavo of Bahia, Cruz das Almas, Bahia, Brazil
| | - Caroline Garcia
- Cytogenetic Laboratory, Department of Biological Sciences, State University of Southwest of Bahia, Jequié, Bahia, Brazil
| | - José Olivan Birindelli
- Museum of Zoology, Department of Animal and Plant Biology, Centro de Ciências Biológicas, Londrina State University, Londrina, Brazil
| | - Orlando Moreira-Filho
- Molecular Biodiversity and Conservation Laboratory, Department of Genetics and Evolution, Federal University of Sao Carlos, Sao Carlos, Brazil
| | - Fernanda Simões Almeida
- Genetics and Animal Ecology Laboratory, Department of General Biology, Biological Sciences Center, Londrina State University, Londrina, Brazil
| | - Lucia Giuliano-Caetano
- Animal Cytogenetics Laboratory, Department of General Biology, Biological Sciences Center, Londrina State University, Londrina, Brazil
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Baumgärtner L, Paiz LM, Takagui FH, Lui RL, Moreira-Filho O, Giuliano-Caetano L, Portela-Castro ALDB, Margarido VP. Comparative Cytogenetics Analysis on Five Genera of Thorny Catfish (Siluriformes, Doradidae): Chromosome Review in the Family and Inferences About Chromosomal Evolution Integrated with Phylogenetic Proposals. Zebrafish 2018; 15:270-278. [PMID: 29653070 DOI: 10.1089/zeb.2017.1554] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Doradidae has been a target of phylogenetic studies over the last few years, but chromosomal information about the family is still scarce. Therefore, new cytogenetic data are provided herein and they are correlated with phylogenetic proposals to contribute to the knowledge of chromosomal evolution within doradids. Cytogenetic studies were performed on Trachydoras paraguayensis, Anadoras sp. "araguaia," Ossancora eigenmanni, Platydoras armatulus, and Rhinodoras dorbignyi. O. eigenmanni, P. armatulus, and R. dorbignyi had 2n = 58 chromosomes as found for most doradids, but T. paraguayensis and Anadoras sp. "araguaia" had 2n = 56 chromosomes, probably caused by a chromosomal reduction. There is a great maintenance of 2n = 58 verified in doradids, but karyotype formulas are diverse. Moreover, other markers (i.e., nucleolar organizer regions, heterochromatin distribution, and 5S and 18S rDNA) showed a great diversity among the analyzed species. Contrasting the variability in the chromosomal markers with the maintenance of diploid number, it is likely that inversions and translocations played an important role in chromosome differentiation in Doradidae. Herein, we created an integrative discussion linking cytogenetic data to phylogenetic proposals, based on morphological and genetic features, enabling us to identify possible cytogenetic traits, as well as probable chromosomal plesiomorphy and apomorphy of Doradidae species.
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Affiliation(s)
- Lucas Baumgärtner
- 1 Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá , Maringá, Brazil
| | - Leonardo Marcel Paiz
- 2 Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná , Cascavel, Brazil
| | - Fabio Hiroshi Takagui
- 3 Departamento de Biologia Geral, Universidade Estadual de Londrina , Londrina, Brazil
| | - Roberto Laridondo Lui
- 2 Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná , Cascavel, Brazil
| | - Orlando Moreira-Filho
- 4 Departamento de Genética e Evolução, Rodovia Washington Luís (SP 310), Universidade Federal de São Carlos , São Carlos, Brazil
| | | | | | - Vladimir Pavan Margarido
- 2 Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná , Cascavel, Brazil
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11
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Prestes AB, Nardelli A, Paiz LM, Gavazzoni M, Lui RL, Moresco RM, Konerat JT, Margarido VP. Citogenética comparativa de três populações de Bryconamericus aff. iheringii (Boulenger, 1887) (Characidae, Stevardiinae). Semin Cienc Biol Saude 2018. [DOI: 10.5433/1679-0367.2017v38n1suplp128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Bryconamericus é um dos gêneros mais numerosos de Characidae, com cerca de 60 espécies de porte reduzido, popularmente conhecidas como “lambaris”, e ampla diversidade nas drenagens atlânticas do continente americano. Apesar do elevado número de espécies, poucas foram estudadas citogeneticamente. Estudos citogenéticos em populações de Bryconamericus aff. iheringii dos rios Ijuí (Alto rio Uruguai), Piquiri (Alto rio Paraná) e Iguaçu (baixo rio Paraná) revelaram 2n=52 cromossomos, sem diferenciação de cromossomos sexuais e com variação interpopulacional de fórmulas cariotípicas. Heterocromatinas foram evidenciadas na região centromérica da maioria dos cromossomos e telomérica em alguns pares, os quais diferiram entre as populações. Diferente das outras populações, B. aff. iheringii do rio Iguaçu apresentou ainda heterocromatinas na região intersticial do braço longo do par de cromossomos subtelocêntricos 15. As AgRONs mostraram-se simples para a população do rio Iguaçu, e múltiplas para as demais, sendo observados dois padrões na população do rio Ijuí. A 18S rDNA-FISH corroborou os resultados obtidos pela impregnação por prata nas populações dos rios Ijuí e Iguaçu, e evidenciou cístrons extras na população do rio Piquiri. A 5S rDNA-FISH evidenciou cístrons simples no segundo padrão da população do rio Ijuí e na população do rio Iguaçu, e múltiplos para o primeiro padrão da população do rio Ijuí e para a população do rio Piquiri. Nas populações dos rios Ijuí e Piquiri foram encontrados cístrons 5S e 18S em sintenia, variando em número e nos pares portadores. A amplificação do DNA e posterior eletroforese em gel de agarose realizada em indivíduos dos rios Ijuí e Piquiri, revelou para ambas as populações um fragmento em torno de 230pb correspondente aos genes de 5S rDNA, e outro por volta de 400pb, o qual corresponde a variantes do 5S rDNA, devido possivelmente a inserções nos espaçadores não transcritos (sequências NTS). Apesar de apresentarem número diploide e padrão de distribuição de heterocromatina característico do gênero, a fórmula cariotípica, o número de RONs e a localização dos cístrons dos genes ribossomais mostraram-se importantes marcadores populacionais.Apoio: CNPq, CAPES, Fundação Araucária
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Traldi JB, Vicari MR, Martinez JDF, Blanco DR, Lui RL, Moreira Filho O. Mapeamento cromossômico das histonas H1 e H4 em espécies de Parodontidae (Characiformes). Semin Cienc Biol Saude 2018. [DOI: 10.5433/1679-0367.2017v38n1suplp201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Parodontidae é composta por três gêneros: Parodon, Saccodon e Apareiodon, os quais abrangem 31 espécies consideradas válidas. Do ponto de vista cromossômico, apresentam 2n=54 cromossomos conservado, com variações nas fórmulas cariotípicas, número e localização dos DNAs ribossomais 45S e 5S e presença/ausência de cromossomos sexuais. O presente trabalho teve como objetivo contribuir para o conhecimento da diversidade cromossômica de Parodontidae, analisando, através de hibridizações in situ fluorescentes, a localização cromossômica dos genes das histonas H1 e H4 em sete espécies da família: Apareiodon cavalcante, Apareiodon machrisi, Apareiodon sp. 1, Apareiodon sp. 2, Apareiodon argenteus, Apareiodon davisi e Parodon cf. pongoensis. As sondas utilizadas foram amplificadas a partir do genoma de A. cavalcante. As sequências obtidas na amplificação das histonas H1 e H4 apresentaram 626 e 213 pares de bases, respectivamente, exibindo similaridade com sequências parciais destes genes de outras espécies de peixes. Além disso, a sequência de H1 amplificada apresentou similaridade com um fragmento interno do elemento transponível ERV1-2 FCa-I. As hibridizações revelaram a ocorrência de co-localização destes genes em porção intersticial de um único par cromossômico (par 20 em P. cf. pongoensis e par 13 nas demais espécies), ocorrendo também um sítio adicional de H1 em A. davisi e pequenos sítios dessa sequência dispersos pelos cariótipos de todas as espécies. Os resultados sugerem que o cluster H1-H4 alocado em apenas um par cromossômico seja a tendência para Parodontidae, indicando assim uma possível conservação desta clusterização em todas as espécies do grupo. Os pequenos sítios de H1 dispersos pelos cariótipos e o sítio adicional de A. davisi provavelmente estão associados ao retroelemento inserido nesta sequência. Além disso, o sítio adicional de A. davisi também pode ser resultado de rearranjos cromossômicos, bem como o par portador do cluster H1-H4 em P. cf. pongoensis. Apesar de ser sugerida a conservação da localização dos genes das histonas H1 e H4 em Parodontidae, as particularidades apresentadas por algumas espécies indicam que, em alguns casos, estes genes estão envolvidos em processos evolutivos que resultam em maior nível de diferenciação.Órgãos financiadores: FAPESP, CAPES e CNPqApoio de coleta: ICM-Bio (licença Nº 10538-1)
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Takagui FH, Baumgartner L, Lui RL, Margarido VP, Viana P, Feldberg E, Giuliano Caetano L. Evidencias de fusões cromossômicas e translocações não recíprocas em Anadoras (Doradidae-Siluriformes): implicações na evolução cariotípica e citotaxonomia. Semin Cienc Biol Saude 2018. [DOI: 10.5433/1679-0367.2017v38n1suplp167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Anadoras é um pequeno gênero dentre os sete alocados na subfamília Astrodoradinae, o segundo maior grupo de Doradidae. Apenas duas espécies são formalmente reconhecidas: Anadoras grypus e Anadoras weddelli, sendo que uma espécie ainda não descrita ocorre no Alto Araguaia denominada Anadoras sp. “araguaia”. No presente estudo essas três espécies foram analisadas citogenéticamente, visando compreender a diversificação cariotípica e fornecer marcadores citotaxonômicos. Foram analisados 5 exemplares de A. grypus coletados no Lago Catalão (Rio Amazonas), 7 exemplares de A. weddelli provenientes do rio Miranda (Rio Paraguai) e 5 exemplares de Anadoras sp. “araguaia” coletados em Barra do Garça (Rio Araguaia). A. grypus apresentou 2n=56 (16m+16sm+12st+12a), e dois padrões de rDNA: quatro exemplares exibiram sítios de rDNA 18S e 5S sintênicos no par 11 e um sítio de rDNA 18S em apenas um dos cromossomos 28, e um indivíduo exibiu somente o par 11 portando os sítios de rDNA sintênicos. Esse polimorfismo intrapopulacional provavelmente surgiu por translocações não recíprocas favorecidas pelo modelo de Rabl. Anadoras sp. “araguaia” e A. weddelli apresentaram 2n=56 (22m+12sm+8st+14a), rDNA 18S simples no par 28 e rDNA5S no braço curto do par 15, sendo que o bandamento C é o único marcador que diferencia as duas espécies. A análise do dendograma de similaridade construído a partir de 32 caracteres cromossômicos evidencia um agrupamento similar à filogenia morfológica, onde A. grypus é a espécie mais diversificada e grupo-irmão do clado formado por A. weddelli e Anadoras sp. “araguaia”. O presente estudo forneceu informações citogenéticas de grande valor citotaxonômico e ainda revelou que em Anadoras, a variabilidade cariotípica ocorreu fundamentalmente devido à fusões cromossômicas, inversões pericêntricas e pelo acúmulo diferencial de DNAs repetitivos, merecendo destaque os rDNA 18S e 5S.Apoio Financeiro: CAPES/Fundação Araucária
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Blanco DR, Vicari MR, Lui RL, Traldi JB, Bueno V, Martinez JDF, Brandão H, Oyakawa OT, Moreira Filho O. Karyotype Diversity and Evolutionary Trends in Armored Catfish Species of the Genus Harttia (Siluriformes: Loricariidae). Zebrafish 2017; 14:169-176. [PMID: 28060676 DOI: 10.1089/zeb.2016.1377] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [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] [Indexed: 11/12/2022] Open
Abstract
Most species of the genus Harttia inhabits the headwaters of small tributaries, but some species are restricted to the main channel of some rivers. This feature, combined with limited dispersal ability, leads to the formation of small isolated populations with reduced gene flow. Currently, there are 23 taxonomically defined and recognized species, and 17 of these are found in Brazil, distributed in several hydrographic basins. Despite this diversity, few chromosomal data for the species belonging to this genus are found in the literature. Thus, this study analyzed, by classical and molecular cytogenetics methodologies, the chromosomal diversity of this genus, to discuss the processes that are involved in the evolution and karyotype differentiation of the species of the group. Seven species of Harttia were analyzed: H. kronei, H. longipinna, H. gracilis, H. punctata, H. loricariformis, H. torrenticola, and H. carvalhoi. The chromosomal diversity found in these species includes different diploid and fundamental numbers, distinct distribution of several repetitive sequences, the presence of supernumerary chromosomes in H. longipinna and multiple sex chromosome systems of the type XX/XY1Y2 in H. carvalhoi and X1X1X2X2/X1X2Y in H. punctata. Lastly, our data highlight the genus Harttia as an excellent model for evolutionary studies.
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Affiliation(s)
- Daniel Rodrigues Blanco
- 1 Coordenação do Curso de Ciências Biológicas, Universidade Tecnológica Federal do Paraná , Santa Helena (PR), Brazil
| | - Marcelo Ricardo Vicari
- 2 Departamento de Biologia Estrutural, Molecular e Genética, Universidade Estadual de Ponta Grossa , Ponta Grossa (PR), Brazil
| | - Roberto Laridondo Lui
- 3 Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná , Cascavel (PR), Brazil
| | - Josiane Baccarin Traldi
- 1 Coordenação do Curso de Ciências Biológicas, Universidade Tecnológica Federal do Paraná , Santa Helena (PR), Brazil
| | - Vanessa Bueno
- 1 Coordenação do Curso de Ciências Biológicas, Universidade Tecnológica Federal do Paraná , Santa Helena (PR), Brazil
| | | | - Heleno Brandão
- 1 Coordenação do Curso de Ciências Biológicas, Universidade Tecnológica Federal do Paraná , Santa Helena (PR), Brazil
| | - Osvaldo Takeshi Oyakawa
- 5 Museu de Zoologia da Universidade de São Paulo, Universidade de São Paulo , São Paulo (SP), Brazil
| | - Orlando Moreira Filho
- 6 Departamento de Genética e Evolução, Universidade Federal de São Carlos , São Carlos (SP), Brazil
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Takagui FH, Dias AL, Birindelli JLO, Swarça AC, da Rosa R, Lui RL, Fenocchio AS, Giuliano-Caetano L. First report of B chromosomes in three neotropical thorny catfishes (Siluriformes, Doradidae). Comp Cytogenet 2017; 11:55-64. [PMID: 28919949 PMCID: PMC5599706 DOI: 10.3897/compcytogen.v11i1.10496] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 11/15/2016] [Indexed: 06/07/2023]
Abstract
The family Doradidae (Siluriformes) is an important group of fishes endemic to freshwater ecosystems in South America. Some cytogenetic studies have been conducted focused on the group; however, there are no reports on the occurrence of B chromosomes for the family. In this paper the chromosomal characteristics of Platydoras armatulus (Valenciennes, 1840), Pterodoras granulosus (Valenciennes, 1821) and Ossancora punctata (Kner, 1855) were investigated through classical cytogenetics approaches. The conventional staining reveals 2n=58 in Platydoras armatulus and Pterodoras granulosus, however with distinct karyotypic formulae, possibly originated by pericentric inversions. In Ossancora punctata a derivate karyotype was described with 2n=66 and predominance of acrocentric chromosomes. The C banding pattern was resolutive in discriminating the three species, being considered an important cytotaxonomic marker. All species showed B chromosomes totally heterochromatic with non-Mendelian segregation during meiosis and low frequencies in mitotic cells. The probably origin of these additional elements was through fragmentations of chromosomes of the standard complement, which occurred recently and independently in these three species. The diploid number observed in Ossancora punctata is an evidence of centric fusions and up to the moment it is the highest diploid number reported for Doradidae.
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Affiliation(s)
- Fábio Hiroshi Takagui
- Laboratory of Animal Cytogenetics; Department of General Biology, CCB, Universidade Estadual de Londrina. Rodovia Celso Garcia Cid, PR 445, km 380, Londrina-Brasil
| | - Ana Lucia Dias
- Laboratory of Animal Cytogenetics; Department of General Biology, CCB, Universidade Estadual de Londrina. Rodovia Celso Garcia Cid, PR 445, km 380, Londrina-Brasil
| | - José Luís Olivan Birindelli
- Museum of Zoology, Department of Animal and Plant Biology, CCB, Universidade Estadual de Londrina. Rodovia Celso Garcia Cid, PR 445, km 380, Londrina-Brasil
| | - Ana Claudia Swarça
- Laboratory of Histology and Genetics; Department of Histology; Center of Biological Sciences (CCB); Universidade Estadual de Londrina (UEL). Londrina-Brasil
| | - Renata da Rosa
- Laboratory of Animal Cytogenetics; Department of General Biology, CCB, Universidade Estadual de Londrina. Rodovia Celso Garcia Cid, PR 445, km 380, Londrina-Brasil
| | - Roberto Laridondo Lui
- Laboratory of Cytogenetics; Center of Biological Sciences and Health: Universidade do Oeste do Paraná, Campus Cascavel. Cascavel - Brasil
| | - Alberto Sergio Fenocchio
- Laboratory of General Cytogenetics; Department of Genetics; Facultad de Ciencias Naturales; Universidad Nacional de Misiones. Posadas- Argentina
| | - Lucia Giuliano-Caetano
- Laboratory of Animal Cytogenetics; Department of General Biology, CCB, Universidade Estadual de Londrina. Rodovia Celso Garcia Cid, PR 445, km 380, Londrina-Brasil
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Traldi JB, Vicari MR, Martinez JDF, Blanco DR, Lui RL, Moreira-Filho O. Chromosome Analyses of Apareiodon argenteus and Apareiodon davisi (Characiformes, Parodontidae): An Extensive Chromosomal Polymorphism of 45S and 5S Ribosomal DNAs. Zebrafish 2016; 13:19-25. [DOI: 10.1089/zeb.2015.1124] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- Josiane Baccarin Traldi
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos-SP, Brazil
| | - Marcelo Ricardo Vicari
- Departamento de Biologia Estrutural, Molecular e Genética, Universidade Estadual de Ponta Grossa, Ponta Grossa-PR, Brazil
| | | | | | - Roberto Laridondo Lui
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Cascavel-PR, Brazil
| | - Orlando Moreira-Filho
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos-SP, Brazil
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Martinez JDF, Lui RL, Traldi JB, Blanco DR, Moreira-Filho O. Occurrence of Natural Hybrids Among Sympatric Karyomorphs in Hoplerythrinus unitaeniatus (Characiformes, Erythrinidae). Zebrafish 2015; 12:281-7. [PMID: 26102558 DOI: 10.1089/zeb.2015.1083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this study, 43 specimens of Hoplerythrinus unitaeniatus from the São Francisco River basin were chromosomally analyzed by conventional Giemsa staining, C-banding, silver nitrate impregnation, and fluorescence in situ hybridization (FISH) with probes of 5S and 18S rDNA. The diploid numbers found were 50 and 52 chromosomes, showing the existence of two well-defined biological entities in sympatry. Specimens with 51 chromosomes, which showed three distinct karyotypic forms, were also found and are characterized as natural hybrids due to the correspondence with the chromosomes of the specimens with 50 and 52 chromosomes. By FISH using 5S and 18S rDNA probes, it was possible to detect specific chromosomal markers for the specimens with 50 and 52 chromosomes, as well as the occurrence of common sites in both. The specimens with 51 chromosomes showed intermediate patterns for these markers, reinforcing the hypothesis that these are actual natural hybrids. A review and new classification for the karyomorphs of H. unitaeniatus have also been proposed.
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Affiliation(s)
| | - Roberto Laridondo Lui
- 2 Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná , Cascavel, Paraná, Brazil
| | - Josiane Baccarin Traldi
- 3 Departamento de Genética e Evolução, Universidade Federal de São Carlos , São Carlos, São Paulo, Brazil
| | | | - Orlando Moreira-Filho
- 3 Departamento de Genética e Evolução, Universidade Federal de São Carlos , São Carlos, São Paulo, Brazil
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Gemi G, Lui RL, Treco FR, Paiz L, Moresco RM, Margarido VP. Basic cytogenetics and physical mapping of 5S and 18S ribosomal genes in Hoplias malabaricus (Osteichthyes, Characiformes, Erythrinidae) from isolated natural lagoons: a conserved karyomorph along the Iguaçu river basin. Comp Cytogenet 2014; 8:211-222. [PMID: 25349672 PMCID: PMC4205490 DOI: 10.3897/compcytogen.v8i3.7084] [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] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 07/21/2014] [Indexed: 06/04/2023]
Abstract
Erythrinidae include Neotropical teleost fish that are widely distributed in South America. Hoplias Gill, 1903 include two large groups: H. malabaricus Bloch, 1794 and H. lacerdae Miranda Ribeiro, 1908. Hoplias malabaricus is characterized by remarkable karyotype diversity, with some karyomorphs widely distributed geographically while others are more restricted to certain river basins. Cytogenetic analyzes were performed in a population of Hoplias malabaricus from the Wildlife Refuge of Campos de Palmas, the Iguaçu River basin. The specimens showed diploid number of 42 chromosomes (24m+18sm) without differentiated sex chromosomes system. The impregnation by silver nitrate showed multiple AgNORs. Seven pairs (4, 7, 10, 13, 16, 20 and 21) carrying 18S rDNA were detected by FISH. Heterochromatin was verified in the centromeric and pericentromeric region of most chromosomes and the terminal region of some pairs. FISH with 5S rDNA probes showed two chromosome pairs carrying these sites in the interstitial region (8 and 14). The data obtained in this study are similar to those found for two other populations of H. malabaricus already studied in the basin of the Iguaçu River, confirming the hypothesis that this species is natural, not having been introduced, as well as having an intrinsic characteristic, such as the largest number of sites of 18S rDNA.
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Affiliation(s)
- Gisele Gemi
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Rua Universitária 2069, CEP: 85819-110, Cascavel, PR, Brazil
| | - Roberto Laridondo Lui
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Rua Universitária 2069, CEP: 85819-110, Cascavel, PR, Brazil
| | - Fernando Rodrigo Treco
- Universidade Paranaense, Avenida Julio Assis Cavalheiro 2000, CEP: 85601-000, Francisco Beltrão, PR, Brazil
| | - Leonardo Marcel Paiz
- Universidade Estadual de Maringá, Departamento de Biologia, CEP: 87020-900 Maringá, PR, Brazil
| | - Rafaela Maria Moresco
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Rua Universitária 2069, CEP: 85819-110, Cascavel, PR, Brazil
| | - Vladimir Pavan Margarido
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Rua Universitária 2069, CEP: 85819-110, Cascavel, PR, Brazil
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Traldi JB, Blanco DR, Vicari MR, Martinez JDF, Lui RL, Artoni RF, Moreira-Filho O. Physical mapping of (GATA)n and (TTAGGG)n sequences in species of Hypostomus (Siluriformes, Loricariidae). J Genet 2013; 92:127-30. [PMID: 23640416 DOI: 10.1007/s12041-013-0224-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Josiane Baccarin Traldi
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil.
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Lui RL, Blanco DR, Martinez JDF, Margarido VP, Venere PC, Moreira Filho O. The role of chromosomal fusion in the karyotypic evolution of the genus Ageneiosus (Siluriformes: Auchenipteridae). Neotrop ichthyol 2013. [DOI: 10.1590/s1679-62252013005000004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ageneiosus is the most widely distributed genus of the family Auchenipteridae among South American river basins. Although chromosome studies in the family are scarce, this genus has the largest number of analyzed species, with 2n = 54 to 56 chromosomes, differing from the rest of the family (2n = 58). This study aimed to analyze Ageneiosus inermis from the Araguaia River basin. The diploid number found was of 56 chromosomes. Heterochromatin was allocated in terminal region of most chromosomes, plus a pericentromeric heterochromatic block in pair 1, a pair distinguished by size in relation to other chromosomes pairs. AgNORs were detected in only one submetacentric chromosome pair, which was confirmed by FISH. 5S rDNA was present in only one metacentric chromosome pair. Hybridization with [TTAGGG]n sequence marked the telomeres of all chromosomes, in addition to an ITS in the proximal region of the short arm of pair 1. The repetitive [GATA]n sequence was dispersed, with preferential location in terminal region of the chromosomes. Ageneiosus has a genomic organization somewhat different when compared to other Auchenipteridae species. Evidences indicate that a chromosomal fusion originated the first metacentric chromosome pair in A. inermis, rearrangement which may be a basal event for the genus
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Lui RL, Blanco DR, Margarido VP, Troy WP, Filho OM. Comparative chromosomal analysis and evolutionary considerations concerning two species of genus Tatia (Siluriformes, Auchenipteridae). Comp Cytogenet 2013; 7:63-71. [PMID: 24260691 PMCID: PMC3833751 DOI: 10.3897/compcytogen.v7i1.4368] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 03/21/2013] [Indexed: 06/02/2023]
Abstract
Auchenipteridae is divided in two subfamilies, Centromochlinae and Auchenipterinae. Centromochlinae has 31 valid species, from which 13 are included in the genus Tatia Miranda Ribeiro, 1911. Among these, Tatia jaracatia Pavanelli & Bifi, 2009 and Tatia neivai (Ihering, 1930) are the only two representative species from the Paraná-Paraguay basins. This study aimed to analyze cytogenetically these two species and thus provide the first chromosomal data for the genus. Although Tatia jaracatia and Tatia neivai presented 2n=58 chromosomes, some differences were observed in the karyotypic formula. The heterochromatin was dispersed in the centromeric and terminal regions of most chromosomes of Tatia jaracatia, and only in the terminal region of most chromosomes of Tatia neivai. The AgNORs were detected in the subtelocentric pair 28 for both species, which was confirmed by FISH with 18S rDNA probe. The 5S rDNA sites were detected in four chromosome pairs in Tatia jaracatia and three chromosome pairs in Tatia neivai. Both species of Tatia presented great chromosomal similarities among themselves; however, when compared to other species of Auchenipteridae, it was possible to identify some differences in the karyotype macrostructure, in the heterochromatin distribution pattern and in the number and position of 5S rDNA sites, which until now seems to be intrinsic to the genus Tatia.
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Affiliation(s)
- Roberto Laridondo Lui
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, Rodovia Washington Luís (SP 310) Km 235, CEP: 13565-905, São Carlos, SP, Brazil
| | - Daniel Rodrigues Blanco
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, Rodovia Washington Luís (SP 310) Km 235, CEP: 13565-905, São Carlos, SP, Brazil
| | - Vladimir Pavan Margarido
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Rua Universitária 2069, CEP: 85819-110, Cascavel, PR, Brazil
| | - Waldo Pinheiro Troy
- Departamento de Ciências Biológicas, Universidade Estadual de Mato Grosso, Rodovia MT 358, Km 07, s/n. Jardim Aeroporto, CEP: 78300-000, Tangará da Serra, MT, Brazil
| | - Orlando Moreira Filho
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, Rodovia Washington Luís (SP 310) Km 235, CEP: 13565-905, São Carlos, SP, Brazil
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Lui RL, Blanco DR, Margarido VP, Kuhn GCES, Gomes VN, Prioli AJ, Moreira-Filho O. A recent transposition of river involving Paraná and São Francisco basins: Effects on the genetic variability and structure of the neotropical fishParauchenipterus galeatus(Siluriformes, Auchenipteridae). ACTA ACUST UNITED AC 2012; 23:388-95. [DOI: 10.3109/19401736.2012.690747] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Lui RL, Blanco DR, Moreira-Filho O, Margarido VP. Propidium iodide for making heterochromatin more evident in the C-banding technique. Biotech Histochem 2012; 87:433-8. [PMID: 22747174 DOI: 10.3109/10520295.2012.696700] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The detection of regions of heterochromatin has been the subject of intense investigation. We investigated an adaptation of the commonly used technique by replacing the nonfluorescent dye, Giemsa, by a fluorescent one, propidium iodide. This adaptation produces greater contrast of the heterochromatic bands in metaphase chromosomes and can be especially valuable when the organisms studied possess heterochromatin that is pale and difficult to visualize. We discuss the interactions of these two dyes with DNA and the excitation of the fluorescent dye when irradiated with ultraviolet light.
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Affiliation(s)
- R L Lui
- Department of Genetics and Evolution, Federal University of São Carlos, Highway Washington Luís (SP 310) Km 235, CEP: 13565-905, São Carlos, Brazil
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Blanco DR, Bertollo LAC, Lui RL, Vicari MR, Margarido VP, Artoni RF, Moreira-Filho O. A new technique for obtaining mitotic chromosome spreads from fishes in the field. J Fish Biol 2012; 81:351-7. [PMID: 22747826 DOI: 10.1111/j.1095-8649.2012.03325.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
This study presents an adaptation of current methodologies for preparing mitotic chromosomes from fishes, optimized for use in the field. The high-quality preparations obtained using this modified methodology is suitable for subsequent chromosomal analysis. Importantly, this method is particularly useful when specimen collection sites are far from research laboratories or when researchers are working with highly sensitive species that do not survive long outside of their natural habitats.
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Affiliation(s)
- D R Blanco
- Departamento de Genética e Evolução, Laboraório de Citogenética, Universidade Federal de São Carlos, Via Washington Luís Km 235, São Carlos, SP 13565-905, Brazil
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Blanco DR, Lui RL, Bertollo LAC, Margarido VP, Moreira Filho O. Karyotypic diversity between allopatric populations of the group Hoplias malabaricus (Characiformes: Erythrinidae): evolutionary and biogeographic considerations. Neotrop ichthyol 2010. [DOI: 10.1590/s1679-62252010000200015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three populations of the group Hoplias malabaricus from the hydrographic basins of the São Francisco, Araguaia/Tocantins and Xingu Rivers in Brazil were analyzed using classic cytogenetic methods (Giemsa staining, C-banding and Ag-NORs) and molecular methods (fluorescent in situ hybridization with 18S rDNA, 5S rDNA and 5SHindIII satellite DNA probes). The chromosome markers allowed the characterization of these populations as belonging to karyomorph A and the detection of inter-population divergences. These differences likely stem from different evolutionary histories resulting from geographic isolation between populations associated to the dispersive mode of these organisms, reinforcing genetic diversity in the group Hoplias malabaricus.
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