1
|
Terra MC, Takagui FH, Baldissera JNDC, De Lima MCC, Feldberg E, Dias AL. The karyotype of Pimelodella cristata (Siluriformes: Heptapteridae) from Central Amazon basin: with a discussion of the chromosome variability in Pimelodella I, as the Editor (i.e. no as the Author of the Article) can confirm that it is OK to proceed; you have, however, to get also the reply from the Author; thank you. Nevertheless, Figures 1-3 should be somehow inserted within the main text of the paper. And I do not know why my reply is automatically directed to Frank Franco...? Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01056-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
2
|
Soares YFF, de Aquino PDPU, Bagley JC, Langeani F, Colli GR. Two new species of Hypostomus suckermouth-armoured catfishes (Teleostei: Loricariidae) from central Brazil. JOURNAL OF FISH BIOLOGY 2021; 99:905-920. [PMID: 33959963 DOI: 10.1111/jfb.14777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 04/29/2021] [Accepted: 05/04/2021] [Indexed: 06/12/2023]
Abstract
This study describes two new endemic Hypostomus species from central Brazil, which were previously identified as genetically distinct lineages in a recent genomic study that recommended their testing and potential description based on morphological data. A machine learning classification procedure (random forest) was used to investigate morphological variation and identify putatively diagnostic characters for these candidate species and revealed that each is morphologically distinct. The new species Hypostomus cafuringa is characterized by small size, dark spots under a light background, deeper caudal peduncle and shorter first ray of the pectoral fin and base of the dorsal fin when compared to congeneric species from the region. H. cafuringa is known from the headwaters of the Maranhão River, upper Tocantins River basin, Distrito Federal, Brazil. The second new species, Hypostomus crulsi, is characterized by dark spots under a light background, absence of plates along the abdomen region, shorter first ray of the pelvic fin, shorter first ray of the pectoral fin and smaller body size. H. crulsi is known from the headwaters of the São Bartolomeu River, upper Paraná River basin, Distrito Federal, Brazil. The rapid conversion of natural habitats for agricultural development and the isolation of protected areas represent a serious threat to the continued existence of these two newly described endemic species, which warrant conservation assessment.
Collapse
Affiliation(s)
- Yan F F Soares
- Programa de Pós-Graduação em Ecologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Brazil
- Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Brazil
| | | | - Justin C Bagley
- Department of Biology, Jacksonville State University, Jacksonville, Alabama, USA
- Department of Biology, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Francisco Langeani
- Departamento de Zoologia e Botânica, Instituto de Biociências, Letras e Ciências Exatas, UNESP - Universidade Estadual Paulista, São José do Rio Preto, Brazil
| | - Guarino R Colli
- Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade de Brasília, Brasília, Brazil
| |
Collapse
|
3
|
de Sousa JLP, de Araújo Bitencourt J, Sampaio I, Schneider H, de Mello Affonso PRA. “More than meets the eye”: phylogeographic inferences and remarkable cryptic diversity and in endemic catfish Parotocinclus (Loricariidae: Hypoptopomatinae) from neglected and impacted basins in South America. CONSERV GENET 2021. [DOI: 10.1007/s10592-021-01336-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
4
|
Ferreira GEDB, Barbosa LM, Prizon-Nakajima AC, de Paiva S, Vieira MMDR, Gallo RB, Borin-Carvalho LA, da Rosa R, wadzki CHZ, dos Santos ICM, Portela-Castro ALDB. Constitutive heterochromatin heteromorphism in the Neotropical armored catfish Hypostomusregani (Ihering, 1905) (Loricariidae, Hypostominae) from the Paraguay River basin (Mato Grosso do Sul, Brazil). COMPARATIVE CYTOGENETICS 2019; 13:27-39. [PMID: 30788061 PMCID: PMC6379321 DOI: 10.3897/compcytogen.v13i1.30134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Accepted: 01/09/2019] [Indexed: 06/01/2023]
Abstract
A cytogenetic analysis based on the integration of a number of different chromosomal methodologies, including chromosome microdissection was carried out to characterize the chromosomally polymorphic Hypostomusregani population from the Paraguay River basin, state of Mato Grosso do Sul in Brazil. All specimens had 2n=72 (FN=116) but two distinct karyotype formulas: karyomorph A (12m+14sm+18s+28a) and karyomorph B (13m+14sm+17st+28a). Karyomorph A and B differed only for pair 19 that consisted of two subtelocentrics in karyomorph A and a large metacentric and a subtelocentric in karyomorph B. This heteromorphism was due to extensive heterochromatinization of the short arm of the large metacentric, as highlighted by C-banding. The microdissection of the large metacentric of pair 19 allowed the production of a probe, named HrV (Hypostomusregani Variant), that hybridized to the whole p arm of the large metacentric and the pericentromeric region of the short arm of its (subtelocentric) homologue (karyomorph B) and of both homologs of pair 19 in karyomorph A. Additional cytogenetic techniques (FISH with 18S and 5S rDNA probes, CMA3 and DAPI staining) allowed a finer distinction of the two karyomorphs. These results reinforced the hypothesis that the novel large metacentric of H.regani (karyomorph B) was the result of the amplification of heterochromatin segments, which contributed to karyotypic diversification in this species.
Collapse
Affiliation(s)
- Greicy Ellen de Brito Ferreira
- Universidade Estadual de Maringá, Departamento de Biotecnologia, Genética e Biologia Celular, 87020-900 Maringá, Paraná, Brazil
| | - Ligia Magrinelli Barbosa
- Universidade Estadual de Maringá, Departamento de Biotecnologia, Genética e Biologia Celular, 87020-900 Maringá, Paraná, Brazil
| | - Ana Camila Prizon-Nakajima
- Universidade Estadual de Maringá, Departamento de Biotecnologia, Genética e Biologia Celular, 87020-900 Maringá, Paraná, Brazil
| | - Suzana de Paiva
- Universidade Estadual de Maringá, Departamento de Biotecnologia, Genética e Biologia Celular, 87020-900 Maringá, Paraná, Brazil
| | | | - Raquel Bozini Gallo
- Universidade Estadual de Londrina, Departamento de Biologia Geral, 86057-970, Londrina, Paraná, Brazil
| | - Luciana Andreia Borin-Carvalho
- Universidade Estadual de Maringá, Departamento de Biotecnologia, Genética e Biologia Celular, 87020-900 Maringá, Paraná, Brazil
| | - Renata da Rosa
- Universidade Estadual de Londrina, Departamento de Biologia Geral, 86057-970, Londrina, Paraná, Brazil
| | - Cláudio Henrique Z wadzki
- Universidade Estadual de Maringá, Departamento de Biologia/Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), 87020-900 Maringá, Paraná, Brazil
| | | | | |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Barreto SB, Cioffi MB, Medrado AS, Silva AT, Affonso PRAM, Diniz D. Allopatric chromosomal variation in Nematocharax venustus Weitzman, Menezes & Britski, 1986 (Actinopterygii: Characiformes) based on mapping of repetitive sequences. NEOTROPICAL ICHTHYOLOGY 2016. [DOI: 10.1590/1982-0224-20150141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT Characiformes is the most cytogenetically studied group of freshwater Actinopterygii, but karyotypical data of several taxa remain unknown. This is the case of Nematocharax , regarded as a monotypic genus and characterized by marked sexual dimorphism. Therefore, we provide the first cytogenetic report of allopatric populations of Nematocharax venustus based on distinct methods of chromosomal banding and fluorescence in situ hybridization (FISH) with repetitive DNA probes (18S and 5S rDNA). The karyotype macrostructure was conserved in all specimens and populations, independently on sex, since they shared a diploid number (2n) of 50 chromosomes divided into 8m+26sm+14st+2a. The heterochromatin was mainly distributed at pericentromeric regions and base-specific fluorochrome staining revealed a single pair bearing GC-rich sites, coincident with nucleolar organizer regions (NORs). On the other hand, interpopulation variation in both number and position of repetitive sequences was observed, particularly in relation to 5S rDNA. Apparently, the short life cycles and restricted dispersal of small characins, such as N. venustus , might have favored the divergence of repetitive DNA among populations, indicating that this species might encompass populations with distinct evolutionary histories, which has important implications for conservation measures.
Collapse
Affiliation(s)
| | | | | | - André T. Silva
- Universidade Estadual Paulista Júlio de Mesquita Filho, Brazil
| | | | - Débora Diniz
- Universidade Estadual do Sudoeste da Bahia, Brazil
| |
Collapse
|
7
|
Lorscheider CA, Zawadzki CH, Vicari MR, Martins-Santos IC, Artoni RF. Karyotypic diversity of the armoured catfish genus Hypostomus (Siluriformes: Loricariidae) in the context of its occurrence and distribution. JOURNAL OF FISH BIOLOGY 2015; 87:1099-1110. [PMID: 26354325 DOI: 10.1111/jfb.12762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Accepted: 06/28/2015] [Indexed: 06/05/2023]
Abstract
This study taxonomically reviewed the specimens studied by Artoni & Bertollo (1996) and assimilated species of Hypostomus into three groups according to their cytogenetic characteristics, vagility and occurrence environments.
Collapse
Affiliation(s)
- C A Lorscheider
- Departamento de Biologia Celular e Genética, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900, Maringá, Paraná State, Brazil
| | - C H Zawadzki
- Departamento de Biologia/Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900, Maringá, Paraná State, Brazil
| | - M R Vicari
- Departamento de Biologia Estrutural, Molecular e Genética, Universidade Estadual de Ponta Grossa, Av. Carlos Cavalcanti 4748, 84030-900, Ponta Grossa, Paraná State, Brazil
| | - I C Martins-Santos
- Departamento de Biologia Celular e Genética, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900, Maringá, Paraná State, Brazil
| | - R F Artoni
- Departamento de Biologia Estrutural, Molecular e Genética, Universidade Estadual de Ponta Grossa, Av. Carlos Cavalcanti 4748, 84030-900, Ponta Grossa, Paraná State, Brazil
| |
Collapse
|
8
|
Zanata AM, Sardeiro B, Zawadzki CH. A new dark-dotted species of Hypostomus Lacépède (Siluriformes: Loricariidae) from rio Paraguaçu, Bahia State, Brazil. NEOTROPICAL ICHTHYOLOGY 2013. [DOI: 10.1590/s1679-62252013000200002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new species of Hypostomus Lacépède is described from the rio Paraguaçu basin, Bahia State, Brazil. The new species is distinguished from its congeners by having black and conspicuous dots on a pale background, which are similar in size on the head, trunk, and fins, along with ventral surface of head and abdomen naked or the latter plated exclusively on its anterior portion, absence of ridges on head and trunk, and caudal-fin lobes relatively similar in length. The new species further differs from the sympatric H. chrysostiktos by having seven branched dorsal-fin rays instead of 10-11 and represents the eleventh siluriform species endemic to the rio Paraguaçu basin.
Collapse
|
9
|
Alves AL, de Borba RS, Pozzobon APB, Oliveira C, Nirchio M, Granado A, Foresti F. Localization of 18S ribosomal genes in suckermouth armoured catfishes Loricariidae (Teleostei, Siluriformes) with discussion on the Ag-NOR evolution. COMPARATIVE CYTOGENETICS 2012; 6:315-21. [PMID: 24260671 PMCID: PMC3833798 DOI: 10.3897/compcytogen.v6i3.2667] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 09/11/2012] [Indexed: 05/27/2023]
Abstract
The family Loricariidae with about 690 species divided into six subfamilies, is one of the world's largest fish families. Cytogenetic studies conducted in the family showed that among 90 species analyzed the diploid number ranges from 2n=38 in Ancistrus sp. to 2n=96 in Hemipsilichthys gobio Luetken, 1874. In the present study, fluorescence in situ hybridization (FISH) was employed to determine the chromosomal localization of the 18S rDNA gene in four suckermouth armoured catfishes: Kronichthys lacerta (Nichols, 1919), Pareiorhaphis splendens (Bizerril, 1995), Liposarcus multiradiatus (Hancock, 1828) and Hypostomus prope plecostomus (Linnaeus, 1758). All species analyzed showed one chromosome pair with 18S rDNA sequences, as observed in the previous Ag-NORs analyses. The presence of size and numerical polymorphism was observed and discussed, with proposing a hypothesis of the Ag-NOR evolution in Loricariidae.
Collapse
Affiliation(s)
- Anderson Luis Alves
- Embrapa Pesca e Aquicultura (CNPASA), Palmas, Tocantins, Brazil Embrapa Pesca e Aquicultura (CNPASA), Palmas, Tocantins, Brazil
- Laboratório de Citogenética, Univ Estadual Paulista “Julio de Mesquita Filho” - UNESP, Rio Claro, São Paulo State, Brazil
| | - Rafael Splendore de Borba
- Laboratório de Citogenética, Univ Estadual Paulista “Julio de Mesquita Filho” - UNESP, Rio Claro, São Paulo State, Brazil
| | - Allan Pierre Bonetti Pozzobon
- Laboratório de Citogenética, Univ Estadual Paulista “Julio de Mesquita Filho” - UNESP, Rio Claro, São Paulo State, Brazil
| | - Claudio Oliveira
- Departamento de Morfologia, Instituto de Biociências, Univ Estadual Paulista Julio de Mesquita Filho, Botucatu, São Paulo State, Brazil
| | - Mauro Nirchio
- Instituto Limnológico, Universidad de Oriente, Caicara del Orinoco, Estado Bolívar, Venezuela
| | - Angel Granado
- Instituto Limnológico, Universidad de Oriente, Caicara del Orinoco, Estado Bolívar, Venezuela
| | - Fausto Foresti
- Departamento de Morfologia, Instituto de Biociências, Univ Estadual Paulista Julio de Mesquita Filho, Botucatu, São Paulo State, Brazil
| |
Collapse
|