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Dos Santos Guimarães A, Maciel LAM, de Souza MFB, Rodrigues LRR. Karyotypic and Molecular Analysis of Pterygoplichthys pardalis (Castelnau 1855) from the Lower Amazon River. Animals (Basel) 2023; 13:ani13091533. [PMID: 37174570 PMCID: PMC10177225 DOI: 10.3390/ani13091533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Revised: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 05/15/2023] Open
Abstract
Pterygoplichthys pardalis is an armored catfish native to South America and an important resource for the ornamental fish industry. Recently, several exotic populations have been introduced into rivers on five continents. Despite its commercial and environmental importance, P. pardalis is poorly studied from a genetic perspective. In this study, we analyzed the karyotype of P. pardalis from the Amazon River and molecular variations in the mitochondrial gene Cytochrome oxidase I (COI) between native and exotic populations. The karyotype presented diploid number 2n = 52 and NF = 100 without cytogenetic variation between males and females. Nucleolus organizer regions (Ag-NOR) in the distal region of the long arm of pair 12 coincided with the 18S hybridization signal, whereas 5S was syntenic to this chromosome but localized in the short arm. The constitutive heterochromatin was restricted in the distal regions of pairs 4, 12, 25, and 26. Telomeric probes showed only distal hybridization signals. The karyotype of P. pardalis diverged from that of its congeners, and COI molecular variation revealed four haplotypes. The Philippine population revealed the greatest diversity with three haplotypes, while haplotype H1 was the most abundant and observed in both native and exotic populations. This new genetic data contributes to species management and provides useful information from an aquaculture perspective.
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Affiliation(s)
- Alcimara Dos Santos Guimarães
- Graduate Program Natural Resources of Amazonia-PPGRNA, Federal University of Western Pará-UFOPA, Tapajós Campus, Vera Paz Street, Santarém 68040-255, PA, Brazil
- Graduate Program Society, Nature and Development-PPGSND, Federal University of Western Pará-UFOPA, Tapajós Campus, Vera Paz Street, Santarém 68040-255, PA, Brazil
| | - Luan Aércio Melo Maciel
- Graduate Program Society, Nature and Development-PPGSND, Federal University of Western Pará-UFOPA, Tapajós Campus, Vera Paz Street, Santarém 68040-255, PA, Brazil
| | - Mendelshon Fujiie Belém de Souza
- Genetics and Biodiversity Laboratory-LGBio, Educational Sciences Institute-ICED, Federal University of Western Pará-UFOPA, Tapajós Campus, Vera Paz Street, Santarém 68040-255, PA, Brazil
| | - Luís Reginaldo Ribeiro Rodrigues
- Graduate Program Natural Resources of Amazonia-PPGRNA, Federal University of Western Pará-UFOPA, Tapajós Campus, Vera Paz Street, Santarém 68040-255, PA, Brazil
- Genetics and Biodiversity Laboratory-LGBio, Educational Sciences Institute-ICED, Federal University of Western Pará-UFOPA, Tapajós Campus, Vera Paz Street, Santarém 68040-255, PA, Brazil
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Knytl M, Fornaini NR, Bergelová B, Gvoždík V, Černohorská H, Kubíčková S, Fokam EB, Evans BJ, Krylov V. Divergent subgenome evolution in the allotetraploid frog Xenopus calcaratus. Gene X 2023; 851:146974. [DOI: 10.1016/j.gene.2022.146974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 09/30/2022] [Accepted: 10/11/2022] [Indexed: 11/06/2022] Open
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Conde-Saldaña CC, Cunha MS, Albornoz-Garzón JG, Barreto CAV, Ibagón N, Villa-Navarro FA, Dergam JA. Karyotypic Divergence of Two Co-Occurring Species of Andean Climbing Catfishes (Siluriformes: Loricarioidei: Astroblepidae). Zebrafish 2018; 16:106-114. [PMID: 30457940 DOI: 10.1089/zeb.2018.1659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The monotypic Astroblepidae fish family includes 81 species distributed along Central and Northern Andes in South America and Panamá in Central America; most aspects regarding its biology, taxonomy, and chromosomal features remain largely unknown. This study reports the karyotype of two sympatric Astroblepus species from the Colombian Andes, aiming to provide novel information on karyotype organization and reveal possible chromosomal rearrangements occurred on these species, through mapping of different repetitive DNA classes, including microsatellites and ribosomal DNA multigene families. The results showed differences in the chromosome number and karyotypic formula: Astroblepus grixalvii had 2n = 52 (28m+8sm +12st +4a) with the metacentric pair number 1 as the largest chromosome pair, whereas Astroblepus homodon had 2n = 54 (30m+8sm +8st +8a) and less evident chromosome size differences. Microsatellite probes marked the tips of all chromosomes in both species except the short arms of acrocentric pair numbers 24 and 25 in A. homodon. Each ribosomal probe marked different chromosome pairs in both species. Microsatellite patterns suggest that the 2n increase probably involved a centric fission event that occurred during the evolutionary history of these species. This is the first karyotype description of an Astroblepus species and it contributes to the theoretical framework about the karyoevolutionary trends within Loricarioidei.
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Affiliation(s)
- Cristhian Camilo Conde-Saldaña
- 1 Departamento de Morfologia, Instituto de Biociências, UNESP-Universidade Estadual Paulista "Julio de Mesquita Filho," Botucatu, Brazil.,2 Departamento de Biologia Animal and Universidade Federal de Viçosa, Viçosa, Brazil
| | - Marina Souza Cunha
- 2 Departamento de Biologia Animal and Universidade Federal de Viçosa, Viçosa, Brazil.,3 Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Juan Gabriel Albornoz-Garzón
- 4 Colecciones Biológicas, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Villa de Leyva, Colombia.,5 Departamento de Biología, Facultad de Ciencias, Grupo de Investigación en Zoología, Universidad del Tolima, Ibagué, Colombia
| | | | - Nicole Ibagón
- 2 Departamento de Biologia Animal and Universidade Federal de Viçosa, Viçosa, Brazil.,3 Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil
| | - Francisco Antonio Villa-Navarro
- 5 Departamento de Biología, Facultad de Ciencias, Grupo de Investigación en Zoología, Universidad del Tolima, Ibagué, Colombia
| | - Jorge Abdala Dergam
- 2 Departamento de Biologia Animal and Universidade Federal de Viçosa, Viçosa, Brazil
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Bueno V, Konerat JT, Zawadzki CH, Venere PC, Blanco DR, Margarido VP. Divergent Chromosome Evolution in Hypostominae Tribes (Siluriformes: Loricariidae): Correlation of Chromosomal Data with Morphological and Molecular Phylogenies. Zebrafish 2018; 15:492-503. [DOI: 10.1089/zeb.2018.1612] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Vanessa Bueno
- Coordenação do Curso de Ciências Biológicas, Universidade Tecnológica Federal do Paraná, Santa Helena, Brazil
| | - Jocicléia Thums Konerat
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Cascavel, Brazil
| | | | - Paulo Cesar Venere
- Laboratório de Citogenética e Genética Animal, Instituto de Biociências, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Daniel Rodrigues Blanco
- Coordenação do Curso de Ciências Biológicas, Universidade Tecnológica Federal do Paraná, Santa Helena, Brazil
| | - Vladimir Pavan Margarido
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná, Cascavel, Brazil
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Rocha-Reis DA, de Oliveira Brandão K, de Almeida-Toledo LF, Pazza R, Kavalco KF. The Persevering Cytotaxonomy: Discovery of a Unique XX/XY Sex Chromosome System in Catfishes Suggests the Existence of a New, Endemic and Rare Species. Cytogenet Genome Res 2018; 156:45-55. [DOI: 10.1159/000492959] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/06/2018] [Indexed: 11/19/2022] Open
Abstract
The genus Hypostomus has a broad geographic distribution in Brazilian rivers and comprises armored catfishes with a very complicated taxonomy due to the absence of morphological autapomorphies. The existence of nearly 10 allopatric populations with different karyotypes suggests that Hypostomusancistroides represents a species complex in the Upper Paraná River basin. In this paper, an unusual karyotype of an isolated H. aff. ancistroides population was investigated. All specimens of this sample have 2n = 66 chromosomes except for 1 male with 2n = 67, most likely due to a supernumerary chromosome. In this population, the sexes are dimorphic, the males are heterogametic, and an XX/XY sex chromosome system is present. Phylogenetic analysis using mitochondrial and nuclear DNAs indicated that this population forms a monophyletic group separate from the other populations of H.ancistroides and may represent an incipient species.
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Brandão KDO, Rocha-Reis DA, Garcia C, Pazza R, de Almeida-Toledo LF, Kavalco KF. Studies in two allopatric populations of Hypostomus affinis (Steindachner, 1877): the role of mapping the ribosomal genes to understand the chromosome evolution of the group. COMPARATIVE CYTOGENETICS 2018; 12:1-12. [PMID: 29362669 PMCID: PMC5770560 DOI: 10.3897/compcytogen.v12i1.22052] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/05/2017] [Indexed: 05/15/2023]
Abstract
Several cytogenetic markers show chromosomal diversity in the fish such as "armoured catfish". Although studies have characterized many species in the major genera representing these Siluridae, particularly in the genus Hypostomus Lacépède, 1803, trends in chromosome evolution of this group remain unclear. The Paraíba do Sul river basin contains the armoured catfish Hypostomus affinis Steindachner, 1877, which is unique because of its distribution of repetitive DNAs, the 5S and 18S rDNA. Identified samples and registered collections in Brazilian museums were identified as the same typological species, while we observed wide variations in the physical location of this gene in the karyotype based on fluorescent in situ hybridization results. In this study, we propose that these species can represent evolutionarily independent units, as these fish frequently undergo processes such as dispersion and vicariance and that the rDNA is associated with DNA that spreads in the genome, such as transposons. Additionally, the absence of gene flow due to the distance of the sample location could intensify evolutionary processes. The phenotypes found for the 18S rDNA showed minor changes in relation to the number of sites between the lower and upper drainage regions of Paraíba do Sul. The large difference in the number of sites found for the 5S rDNA entered the same region (upper drainage of the basin) and the literature data could represent a population dynamics where an expansion of the 5S rDNA sites provides an extinct or non-sampled cytotype in this work.
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Affiliation(s)
- Karina de Oliveira Brandão
- Leiden University Medical Center, Department of Anatomy and Embryology, S-1-P, P.O. Box 9600, 2300 RC Leiden, The Netherlands
| | - Dinaíza Abadia Rocha-Reis
- Universidade Federal de Viçosa, Campus Rio Paranaíba, Institute of Biological and Health Sciences, Laboratory of Ecological and Evolutionary Genetics, BR 354 - km 310, PO Box 22, ZIP 38810-000, Rio Paranaíba, MG, Brazil
| | - Caroline Garcia
- Universidade Estadual do Sudoeste da Bahia, Campus Jequié, Department of Biological Sciences, Av. José Moreira Sobrinho s/n, Jequiezinho, ZIP 45206-190, Jequié, BA, Brazil
| | - Rubens Pazza
- Universidade Federal de Viçosa, Campus Rio Paranaíba, Institute of Biological and Health Sciences, Laboratory of Ecological and Evolutionary Genetics, BR 354 - km 310, PO Box 22, ZIP 38810-000, Rio Paranaíba, MG, Brazil
| | - Lurdes Foresti de Almeida-Toledo
- Universidade de São Paulo. Institute of Biosciences, Department of Genetics and Evolutionary Biology, Rua do Matão, 277 – Edifício André Dreyfus, Cidade Universitária, ZIP 05508090, São Paulo, SP, Brazil
| | - Karine Frehner Kavalco
- Universidade Federal de Viçosa, Campus Rio Paranaíba, Institute of Biological and Health Sciences, Laboratory of Ecological and Evolutionary Genetics, BR 354 - km 310, PO Box 22, ZIP 38810-000, Rio Paranaíba, MG, Brazil
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Fernandes CA, Alves DS, Guterres ZDR, Martins-Santos IC. Cytogenetic analysis of two locariid species (Teleostei, Siluriformes) from Iguatemi River (Parana River drainage) in Brazil. COMPARATIVE CYTOGENETICS 2015; 9:67-78. [PMID: 25893075 PMCID: PMC4387381 DOI: 10.3897/compcytogen.v9i1.8804] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 12/30/2014] [Indexed: 05/27/2023]
Abstract
Fishes of the Loricariidae family, known as "cascudos", constitute an endemic group in Neotropical freshwaters. In this study, were cytogenetically examined two species of Loricariidae (Pterygoplichthysanisitsi Eigenmann & Kennedy, 1903 and Farlowellaamazonum (Günther, 1864) belonging to Hypostominae and Loricariinae subfamilies respectively) from Iguatemi River. Our study provide the first description regarding C-band and fluorochromic analysis in Farlowellaamazonum. In Farlowellaamazonum, diploid number was 58 chromosomes, with single Ag-NOR and heterochromatic blocks in centromeric regions of some chromosomes and large subtelomeric blocks were evidenced on the long arm of the pair 27, being this region CMA3 (+)/DAPI(-). The Pterygoplichthysanisitsi showed diploid number equal 52 chromosomes, with single Ag-NOR and heterochromatic blocks in centromeric and telomeric regions of some chromosomes and conspicuous large telomeric blocks on the long arm of the pair 10, being this region CMA3 (+)/DAPI(-). The results show that karyotype formula is nonconservative in Pterygoplichthysanisitsi and Farlowellaamazonum.
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Affiliation(s)
- Carlos Alexandre Fernandes
- State University of Mato Grosso do Sul, BR 163-Km 20.2-CEP: 79980-000, Mundo Novo, MS, Brazil
- Grupo de Estudo em Ciências Ambientais e Educação (GEAMBE)
| | - Diandra Soares Alves
- State University of Mato Grosso do Sul, BR 163-Km 20.2-CEP: 79980-000, Mundo Novo, MS, Brazil
| | - Zaira da Rosa Guterres
- State University of Mato Grosso do Sul, BR 163-Km 20.2-CEP: 79980-000, Mundo Novo, MS, Brazil
- Grupo de Estudo em Ciências Ambientais e Educação (GEAMBE)
| | - Isabel Cristina Martins-Santos
- Department of Cell Biology and Genetics, State University of Maringá, Avenida Colombo 5790, 87020-900, Maringá, PR, Brazil
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Physical mapping of the 5S and 18S rDNA in ten species of Hypostomus Lacépède 1803 (Siluriformes: Loricariidae): evolutionary tendencies in the genus. ScientificWorldJournal 2014; 2014:943825. [PMID: 25405240 PMCID: PMC4227443 DOI: 10.1155/2014/943825] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 09/24/2014] [Indexed: 11/29/2022] Open
Abstract
Hypostomus is a diverse group with unclear aspects regarding its biology, including the mechanisms that led to chromosome diversification within the group. Fluorescence in situ hybridization (FISH) with 5S and 18S rDNA probes was performed on ten Hypostomini species. Hypostomus faveolus, H. cochliodon, H. albopunctatus, H. aff. paulinus, and H. topavae had only one chromosome pair with 18S rDNA sites, while H. ancistroides, H. commersoni, H. hermanni, H. regani, and H. strigaticeps had multiple 18S rDNA sites. Regarding the 5S rDNA genes, H. ancistroides, H. regani, H. albopunctatus, H. aff. paulinus, and H. topavae had 5S rDNA sites on only one chromosome pair and H. faveolus, H. cochliodon, H. commersoni, H. hermanni, and H. strigaticeps had multiple 5S rDNA sites. Most species had 18S rDNA sites in the telomeric region of the chromosomes. All species but H. cochliodon had 5S rDNA in the centromeric/pericentromeric region of one metacentric pair. Obtained results are discussed based on existent phylogenies for the genus, with comments on possible dispersion mechanisms to justify the variability of the rDNA sites in Hypostomus.
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Gornung E. Twenty years of physical mapping of major ribosomal RNA genes across the teleosts: A review of research. Cytogenet Genome Res 2013; 141:90-102. [PMID: 24080951 DOI: 10.1159/000354832] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Molecular cytogenetic data on the number and position of 45S ribosomal RNA genes (rDNA; located in nucleolus organizing regions, NORs) detected by FISH in 330 species of 77 families and 22 orders of bony fishes (Teleostei) and, additionally, 11 species of basal ray-finned fishes are compiled and analyzed. The portion of species with single rDNA sites in the sample amounts to 72%. The percentage of species with multiple NORs decreases with increasing numbers of rDNA loci per genome, i.e. scarcely 3% of species carry 4 or more rDNA-bearing chromosome pairs. 43% of all rDNA sites analyzed occur terminally on the short arms of chromosomes or constitute them. In general, terminal rDNA sites account for 87% of all examined cases. Interspecific variation in the location of single rDNA sites among related taxa, polymorphisms of multiple NORs in some groups of teleosts and analytical outcomes on the subject are reviewed.
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Affiliation(s)
- E Gornung
- 'Charles Darwin' Department of Biology and Biotechnologies, University of Rome 'La Sapienza', Rome, Italy
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