1
|
Ferreira AMV, Viana PF, Zuanon J, Ezaz T, Cioffi MB, Takagui FH, Feldberg E. Cytogenetic Analysis of Panaqolus tankei Cramer & Sousa, 2016 (Siluriformes, Loricariidae), an Ornamental Fish Endemic to Xingu River, Brazil. Cytogenet Genome Res 2021; 161:187-194. [PMID: 33744896 DOI: 10.1159/000514061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 12/23/2020] [Indexed: 11/19/2022] Open
Abstract
Despite conservation of the diploid number, a huge diversity in karyotype formulae is found in the Ancistrini tribe (Loricariidae, Hypostominae). However, the lack of cytogenetic data for many groups impairs a comprehensive understanding of the chromosomal relationships and the impact of chromosomal changes on their evolutionary history. Here, we present for the first time the karyotype of Panaqolus tankei Cramer & Sousa, 2016. We focused on the chromosomal characterization, using conventional and molecular cytogenetic techniques to unravel the evolutionary trends of this tribe. P. tankei, as most species of its sister group Pterygoplichthini, also possessess a conserved diploid number of 52 chromosomes. We observed heterochromatin regions in the centromeres of many chromosomes; pairs 5 and 6 presented interstitial heterochromatin regions, whereas pairs 23 and 24 showed extensive heterochromatin regions in their q arms. In situ localization of 18S rDNA showed hybridization signals correlating with the nucleolus organizer regions, which are located in the q arms of pair 5. However, the 5S rDNA was detected in the centromeric and terminal regions of the q arms of pair 8. (TTAGGG)n hybridized only in the terminal regions of all chromosomes. Microsatellite in situ localization showed divergent patterns, (GA)15 repeated sequences were restricted to the terminal regions of some chromosomes, whereas (AC)15 and (GT)15 showed a scattered hybridization pattern throughout the genome. Intraspecific comparative genomic hybridization was performed on the chromosomes of P. tankei to verify the existence of sex-specific regions. The results revealed only a limited number of overlapping hybridization signals, coinciding with the heterochromatin in centromeric regions without any sex-specific signals in both males and females. Our study provides a karyotype description of P. tankei, highlighting extensive differences in the karyotype formula, the heterochromatin regions, and sites of 5S and 18S rDNA, as compared with data available for the genus.
Collapse
Affiliation(s)
- Alex M V Ferreira
- Laboratório de Genética Animal, Instituto Nacional de Pesquisas da Amazônia, Coordenação de Biodiversidade, Manaus, Brazil,
| | - Patrik F Viana
- Laboratório de Genética Animal, Instituto Nacional de Pesquisas da Amazônia, Coordenação de Biodiversidade, Manaus, Brazil
| | - Jansen Zuanon
- Instituto Nacional de Pesquisas da Amazônia, Coordenação de Biodiversidade, Manaus, Brazil
| | - Tariq Ezaz
- Institute for Applied Ecology, Faculty of Science and Technology, University of Canberra, Canberra, Australian Capital Territory, Australia
| | - Marcelo B Cioffi
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Fábio H Takagui
- Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, Brazil
| | - Eliana Feldberg
- Laboratório de Genética Animal, Instituto Nacional de Pesquisas da Amazônia, Coordenação de Biodiversidade, Manaus, Brazil
| |
Collapse
|
2
|
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
| |
Collapse
|
3
|
Prizon AC, Bruschi DP, Borin-Carvalho LA, Cius A, Barbosa LM, Ruiz HB, Zawadzki CH, Fenocchio AS, Portela-Castro ALDB. Hidden Diversity in the Populations of the Armored Catfish Ancistrus Kner, 1854 (Loricariidae, Hypostominae) from the Paraná River Basin Revealed by Molecular and Cytogenetic Data. Front Genet 2017; 8:185. [PMID: 29225612 PMCID: PMC5705632 DOI: 10.3389/fgene.2017.00185] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Accepted: 11/07/2017] [Indexed: 12/01/2022] Open
Abstract
Only one species of armored catfish, Ancistrus cirrhosus Valenciennes 1836, has been historically described in the basin of the Paraná River, from Misiones (Argentina). However, the ample variation found in the morphology and coloration of the populations sampled in the tributaries of the Brazilian state of Paraná makes it difficult to establish the real taxonomic status and evolutionary history of the Ancistrus specimens, suggesting that A. cirrhosus is not the only species found in this basin. By combining data on mitochondrial DNA (COI gene) and chromosomal markers from different Ancistrus populations, totaling 144 specimens, in the tributaries of the Paraná, and specimens from Misiones (type-locality of A. cirrhosus), we detected five distinct evolutionary lineages. All the specimens were 2n = 50, but had four distinct karyotype formulae. The results of the Generalized Mixed Yule Coalescent (GYMC) and the genetic distances (uncorrected P-values) between lineages ranged from 3 to 5%. Clusters of 18S rDNA were observed in a single chromosome pair in seven populations of Ancistrus, but at different positions, in some cases, in synteny with the 5S rDNA sites. Multiple 5S sites were observed in all populations. Overall, the cytogenetic data reinforce the genetic evidence of the diversification of lineages, and indicate the existence of candidate species in the study region. The evidence indicates that at least four candidate species of the Ancistrus may coexist in the Paraná basin besides A. cirrhosus. Overall, our results provide a comprehensive scenario for the genetic variation among Ancistrus populations and reinforce the conclusion that the true diversity of the freshwater fish of the Neotropical regions has been underestimated.
Collapse
Affiliation(s)
- Ana C Prizon
- Laboratório de Citogenética de Vertebrados, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Daniel P Bruschi
- Laboratório de Citogenética Animal e Mutagênese Ambioental, Departamento de Genética, Universidade Federal do Paraná, Curitiba, Brazil
| | - Luciana A Borin-Carvalho
- Laboratório de Citogenética de Vertebrados, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Andréa Cius
- Laboratório de Citogenética de Vertebrados, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Ligia M Barbosa
- Laboratório de Citogenética de Vertebrados, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Henrique B Ruiz
- Departamento de Biologia/Nupélia, Universidade Estadual de Maringá, Maringá, Brazil
| | - Claudio H Zawadzki
- Departamento de Biologia/Nupélia, Universidade Estadual de Maringá, Maringá, Brazil
| | - Alberto S Fenocchio
- Facultad de Ciencias Exactas, Químicas y Naturales, Universidad Nacional de Misiones, Posadas, Argentina
| | - Ana L de Brito Portela-Castro
- Laboratório de Citogenética de Vertebrados, Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| |
Collapse
|
4
|
Prizon AC, Borin-Carvalho LA, Bruschi DP, Ribeiro MO, Barbosa LM, Ferreira GEDB, Cius A, Zawadzki CH, Portela-Castro ALDB. Cytogenetic data on Ancistrus sp. (Siluriformes, Loricariidae) of the Paraguay River basin (MS) sheds light on intrageneric karyotype diversification. COMPARATIVE CYTOGENETICS 2016; 10:625-636. [PMID: 28123683 PMCID: PMC5240514 DOI: 10.3897/compcytogen.v10i4.8532] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 10/17/2016] [Indexed: 06/02/2023]
Abstract
Ancistrus Kner, 1854 is a diverse catfish genus, currently comprising 66 valid species, but karyotype data were recorded for 33 species, although only ten have their taxonomic status defined. Considerable karyotype diversity has been found within this genus, with 2n varying from 34 to 54 and structural variability including heteromorphic sex chromosomes. In many cases, uncertainty on the taxonomic status of the study populations hampers reliable interpretation of the complex chromosomal evolutionary history of the group. This study aims to present the first karyotype data for a population of the Ancistrus sp. collected in Criminoso stream (tributary of the Paraguay River Basin, Mato Grosso do Sul, Brazil) in which a combination of different chromosomal markers was used and results integrated in broad discussion on karyotype evolution in the genus. The specimens presented 2n=42 with 18m+16sm+8st and a single NOR revealed by silver nitrate and fluorescence in situ hybridization (FISH) with 18S rDNA probe, located in pair No. 10. Clusters of 5S rDNA were located in the pericentromeric region of three chromosomes: pair No. 1 (metacentric) and one of the homologues of the nucleolar pair No. 10. Heterogeneity in the molecular composition of the heterochromatin was confirmed by the association of C-banding and fluorochrome CMA3/DAPI-staining. Exploring the differential composition of constitutive heterochromatin in Ancistrus may provide an important perspective to understand genome organization and evolution within this group. Our data reinforce the chromosomal diversity present in Ancistrus genus and we discuss the potential sources these variation. The karyotype structure of Ancistrus sp. "Criminoso stream" appears to be consistent with the existence of a new candidate species.
Collapse
Affiliation(s)
- Ana Camila Prizon
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Luciana Andreia Borin-Carvalho
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Daniel Pacheco Bruschi
- Departamento de Genética, Universidade Federal do Paraná, UFPR, Centro Politécnico, Jardim Botânico, 81531-980, Curitiba, Paraná, Brazil
| | - Marcos Otávio Ribeiro
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Ligia Magrinelli Barbosa
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Greicy Ellen de Brito Ferreira
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Andréa Cius
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Claudio Henrique Zawadzki
- Departamento de Biologia/ Nupélia, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| | - Ana Luiza de Brito Portela-Castro
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, UEM, Avenida Colombo, 5790, 87020-900, Maringá, Paraná, Brazil
| |
Collapse
|