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Mari-Ribeiro IP, Scorsim B, Ranucci L, Borin-Carvalho LA, Oliveira AVD, Portela-Castro ALDB. Integrating Genetic and Cytogenetic Data: A Diversity Study of Astyanax and Psalidodon (Characidae) Species from the Paraná River Basin. Zebrafish 2024; 21:300-309. [PMID: 38813664 DOI: 10.1089/zeb.2024.0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024] Open
Abstract
Astyanax is one of the most specious fish groups in the Neotropical region, with many cryptic species, which represents a challenge for correct identification through traditional taxonomic methods. Psalidodon is a recently resurrected genus group of species previously belonging to Astyanax, specifically those with extensive chromosomal variation of the A. scabripinnis and fasciatus complexes. In the present study, the mitochondrial genes cytochrome c oxidase subunit 1 (COI), mitochondrial ATP synthase 6 and 8 (ATPase 6/8), and NADH dehydrogenase subunit 2 (ND2) were used in conjunction with chromosomal data to characterize molecularly and cytogenetically populations of Astyanax and Psalidodon from rivers and streams of the Ivaí River Basin (Paraná Basin). The results demonstrated the effectiveness of the integrative use of molecular and cytogenetic techniques, with the confirmation of at least three species for the sampled sites: A. lacustris, P. paranae, and P. fasciatus, which showed inter- and intrapopulation karyotype variations. In addition, extensive haplotypic variation can be observed for these species within the Ivaí River Basin and throughout the Paraná River Basin. The data demonstrate a hidden diversity among the species analyzed, enrich the ichthyofaunistic knowledge of small rivers and streams, and contribute to future conservation projects in these areas.
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Affiliation(s)
- Isabelle Pereira Mari-Ribeiro
- Departamento de Biotecnologia, Genética e Biologia Celular (DBC), Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Bárbara Scorsim
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais (PEA), Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Leandro Ranucci
- Departamento de Biotecnologia, Genética e Biologia Celular (DBC), Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Luciana Andréia Borin-Carvalho
- Departamento de Biotecnologia, Genética e Biologia Celular (DBC), Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Alessandra Valéria de Oliveira
- Departamento de Biotecnologia, Genética e Biologia Celular (DBC), Universidade Estadual de Maringá (UEM), Maringá, Brazil
- Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais (PEA), Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
- Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura-Nupélia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Ana Luiza de Brito Portela-Castro
- Departamento de Biotecnologia, Genética e Biologia Celular (DBC), Universidade Estadual de Maringá (UEM), Maringá, Brazil
- Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura-Nupélia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
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Gavazzoni M, Brezinski FC, Pedroso TH, Pavanelli CS, Graça WJD, Blanco DR, Lui RL, Margarido VP. Integrative Taxonomy Suggests Resurrection of Species of the Astyanax bimaculatus Group (Characiformes, Characidae). Zebrafish 2024. [PMID: 38980839 DOI: 10.1089/zeb.2024.0132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2024] Open
Abstract
Using integrative tools can be effective for species identification, especially in complex groups like Astyanax. Astyanax bimaculatus group is composed of six valid species, including A. lacustris. "A. altiparanae", "A. asuncionensis", and "A. jacuhiensis" are considered as junior synonyms of A. lacustris. Seeking to test the operational taxonomic unit (OTU) status of the junior synonyms of A. lacustris ("A. altiparanae", "A. asuncionensis", and "A. jacuhiensis"), we used analyses through mitochondrial DNA (COI and Cytb), cytogenetic markers (classical and molecular), and morphometry ("truss network"). Analysis of mitochondrial DNA sequences separated A. lacustris from the other synonymized species. The cytogenetic and morphometric analyses did not corroborate the synonymization and suggest that besides A. lacustris, the OTUs A. altiparanae, A. asuncionensis, and A. jacuhiensis are valid species. The analysis of different characters proposed by the integrative taxonomy used on the same individuals could provide greater reliability and minimize the underestimation of biodiversity.
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Affiliation(s)
- Mariane Gavazzoni
- Universidade Estadual do Oeste do Paraná, Pós-Graduação em Conservação e Manejo de Recursos Naturais, Cascavel, Brazil
| | - Flavia C Brezinski
- Universidade Estadual do Oeste do Paraná, Pós-Graduação em Conservação e Manejo de Recursos Naturais, Cascavel, Brazil
| | - Thiago H Pedroso
- Universidade Estadual de Maringá, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Maringá, Brazil
| | - Carla S Pavanelli
- Universidade Estadual de Maringá, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Maringá, Brazil
- Universidade Estadual de Maringá, Centro de Ciências Biológicas, Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura, Maringá, Brazil
| | - Weferson J da Graça
- Universidade Estadual de Maringá, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Maringá, Brazil
- Universidade Estadual de Maringá, Centro de Ciências Biológicas, Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura, Maringá, Brazil
- Departamento de Biologia, Universidade Estadual de Maringá, Centro de Ciências Biológicas, Maringá, Brazil
| | - Daniel R Blanco
- Universidade Tecnológica Federal do Paraná, Campus Santa Helena, Santa Helena, Brazil
| | - Roberto L Lui
- Universidade Estadual do Oeste do Paraná, Pós-Graduação em Conservação e Manejo de Recursos Naturais, Cascavel, Brazil
| | - Vladimir P Margarido
- Universidade Estadual do Oeste do Paraná, Pós-Graduação em Conservação e Manejo de Recursos Naturais, Cascavel, Brazil
- Universidade Estadual de Maringá, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Maringá, Brazil
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Sun CH, Lu CH, Wang ZJ. Comparison and phylogenetic analysis of the mitochondrial genomes of Synodontis eupterus and Synodontis polli. Sci Rep 2024; 14:15393. [PMID: 38965284 PMCID: PMC11224264 DOI: 10.1038/s41598-024-65809-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2024] [Accepted: 06/24/2024] [Indexed: 07/06/2024] Open
Abstract
We aimed to distinguish Synodontis eupterus and Synodontis polli. We performed sequencing and bioinformatic analysis of their mitochondrial genomes and constructed a phylogenetic tree of Mochokidae fish using maximum likelihood and Bayesian methods based on protein-coding gene (PCG) sequences of 14 Mochokidae species. The total length of the S. eupterus mitochondrial genome was 16,579 bp, including 13 (PCGs), 22 tRNA genes, two rRNA genes, and one D-loop, with an AT-biased nucleotide composition (56.0%). The total length of the S. polli mitochondrial genome was 16,544 bp, including 13 PCGs, 22 tRNA genes, two rRNA genes, and one D-loop, with an AT-biased nucleotide composition (55.0%). In both species, except for COI, PCGs use ATG as the starting codon, the vast majority use TAG or TAA as the ending codon, and a few use incomplete codons (T - or TA -) as the ending codon. Phylogenetic analysis showed that S. eupterus and Synodontis clarias converged into one branch, S. polli and Synodontis petricola converged into one branch, Mochokiella paynei, Mochokus brevis, and nine species of the genus Synodontis converged into one branch, and M. paynei clustered with the genus Synodontis. This study lays a foundation for rebuilding a clearer Mochokidae fish classification system.
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Affiliation(s)
- Cheng-He Sun
- The Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing, 210037, China.
| | - Chang-Hu Lu
- The Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing, 210037, China.
| | - Zi-Jian Wang
- Agriculture and Rural Bureau of Gaochun District, Nanjing, 211300, China
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Mejia E, Buckup PA. Species boundaries of the whiptail catfish Rineloricaria (Siluriformes: Loricariidae) from the Paraíba do Sul River drainage, southeastern Brazil, with species redescriptions and description of a new species. JOURNAL OF FISH BIOLOGY 2024; 105:288-313. [PMID: 38747127 DOI: 10.1111/jfb.15780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/13/2024] [Accepted: 04/17/2024] [Indexed: 07/19/2024]
Abstract
Species of the catfish genus Rineloricaria are common in the Paraíba do Sul River basin, in southeastern Brazil; here we present a revision of the taxonomic diversity and geographic distribution of the species of the genus inhabiting the basin, based on novel morphologic and molecular data. Five species delimitation methods based on cytochrome C oxidase subunit 1 nucleotide sequences yielded comparable molecular operational taxonomic units. The automatic barcode gap discovery, assemble species by automatic partitioning, barcode index number, and Bayesian implementation of the Poisson tree process methods supported the recognition of five evolutionary lineages. These taxonomic units were assigned to the previously described Rineloricaria nigricauda, Rineloricaria steindachneri, Rineloricaria zawadzkii, and Rineloricaria nudipectoris, and an additional undescribed species. R. zawadzkii was further divided into two intraspecific geographically structured lineages using the generalized mixed Yule coalescent delimitation method. A maximum likelihood phylogenetic analysis revealed that the five lineages from the Paraíba do Sul have closer relationships to different species from southern and southeastern Brazil (Ribeira de Iguape, Lagoa dos Patos, Uruguay, Paraguay, and Parana river basins) than to each other. Based on the analysis of lectotypes, recently collected material, and specimens from ichthyological collections, the poorly described R. nigricauda and R. steindachneri are redescribed following current descriptive standards. The undescribed species from the middle and upper Paraíba do Sul River basin is formally described. The description of a new species, along with the description of species boundaries in R. nigricauda and R. steindachneri, contributes to the knowledge of the ichthyofauna of the Paraíba do Sul River basin and adjacent coastal drainages of southeastern Brazil. An identification key for the species of Rineloricaria occurring in the Paraíba do Sul River basin is provided.
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Affiliation(s)
- Eduardo Mejia
- Programa de Pós-graduação em Ciências Biológicas (Zoologia), Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paulo A Buckup
- Programa de Pós-graduação em Ciências Biológicas (Zoologia), Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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Dutra GM, Peixoto LAW, Donin LM, de Santana CD, Menezes NA. Integrative taxonomy reveals a new species of the glass knifefish genus Eigenmannia Jordan & Evermann, 1896 (Teleostei: Gymnotiformes: Sternopygidae) from the Rio Branco basin, Brazil. JOURNAL OF FISH BIOLOGY 2024. [PMID: 38881347 DOI: 10.1111/jfb.15794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 03/11/2024] [Accepted: 05/03/2024] [Indexed: 06/18/2024]
Abstract
A new species of Eigenmannia is described from the Rio Branco basin, Roraima, Brazil, based on morphological and molecular datasets. It is distinguished from all congeners by the following combination of characters: lateral line stripe extending from first perforated lateral line scale to distal portion of caudal filament, presence of superior midlateral stripe with origin posterior to end of body cavity anal-fin hyaline, caudal filament corresponding to 15.2%-43.1% LEA, subterminal mouth, ii,14-16 pectoral-fin rays, 166-219 anal-fin rays, 10-13 scale rows above lateral line at vertical through posterior tip of pectoral fin, 100-128 scales on lateral line, 22-28 premaxillary teeth, 19-23 dentary teeth, 7-10 endopterygoid teeth, depth of posterodorsal expansion on infraorbitals 1 + 2 half as long as infraorbitals 1 + 2 length, basibranchial 1 unossified, 13 precaudal vertebrae, and length of coronomeckelian bone corresponding to 20% of Meckel's cartilage length. The new species has significant genetic divergence from species with accessible DNA sequences in public repositories, ranging from 10.8% to 17.7%. An osteological description of the new species, a review of Eigenmannia cytochrome c oxidase subunit I (COI) sequences available in public repositories based on voucher examination, and a hypothesis of phylogenetic relationships for the new species based on COI are provided. The critical importance of including voucher examination as one of the steps in the pipeline for using DNA sequences present in public repositories in taxonomic and phylogenetic studies is discussed.
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Affiliation(s)
- Guilherme Moreira Dutra
- Unidade Acadêmica Passos, Avenida Juca Stockler, Universidade do Estado de Minas Gerais, Passos, Brazil
| | - Luiz Antônio Wanderley Peixoto
- Instituto de Estudos Costeiros, Universidade Federal do Pará, Bragança, Brazil
- Núcleo de Ecologia Aquática e Pesca da Amazônia-NEAP, Universidade Federal do Pará, Belém, Brazil
| | | | - Carlos David de Santana
- Division of Fishes, Department of Vertebrate Zoology, MRC-159, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, USA
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Lima RC, de Lima SR, Rocha MS, Dos Anjos HDB, Dantas YCA, Benites IDN, Queiroz CDCS, Fraga EDC, Batista JDS. Identification of fish specimens of the Tocantins River, Brazil, using DNA barcoding. JOURNAL OF FISH BIOLOGY 2024; 104:1924-1939. [PMID: 38551122 DOI: 10.1111/jfb.15721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 12/03/2023] [Accepted: 02/25/2024] [Indexed: 06/27/2024]
Abstract
The fish fauna of the Tocantins River possesses many endemic species; however, it is little studied in molecular terms and is quite threatened by the construction of several hydroelectric dams. Therefore, the objective of this study was to identify the ichthyofauna of the Tocantins River using DNA barcoding. For this, collections were carried out in five points of this river, which resulted in the capture of 725 individuals from which partial sequences of the cytochrome oxidase subunit I (COI) gene were obtained for genetic analysis. A total of 443 haplotypes were recovered with the mean intraspecific K2P genetic distance of 1.82%. Altogether, 138 species were identified based on morphological criteria, which was a quantity that was much lower than that indicated by the four molecular methods (assemble species by automatic partitioning [ASAP], barcode index number [BIN], generalized mixed Yule coalescent (GMYC), and Bayesian Poisson tree processes [bPTP]) through which 152-157 molecular entities were identified. In all, 41 unique BINs were obtained based on the data generated in the BOLDSystems platform. According to the result indicated by ASAP (species delimitation approach considered the most appropriate in the present study), there was an increase of 17 molecular entities (12.32%), when compared to the number of species identified through their morphological criteria, as it can show cryptic diversity, candidates for new species, and misidentifications. There were 21 incongruities indicated between the different identification approaches for species. Therefore, it is suggested that these taxonomic problems be cautiously evaluated by experts to solve such taxonomic issues.
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Affiliation(s)
- Renato Corrêia Lima
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva (PPG-GCBEv), Laboratório Temático de Biologia Molecular (LTBM), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Sabrina Rufino de Lima
- Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva (PPG-GCBEv), Laboratório Temático de Biologia Molecular (LTBM), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Marcelo Salles Rocha
- Coordenação de Ciências Biológicas, Universidade do Estado do Amazonas (UEA), Manaus, Brazil
| | | | | | | | | | - Elmary da Costa Fraga
- Departamento de Química e Biologia, Universidade Estadual do Maranhão (UEMA), Caxias, Brazil
| | - Jacqueline da Silva Batista
- Coordenação de Biodiversidade (COBIO), Laboratório Temático de Biologia Molecular (LTBM), Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva (PPG-GCBEv), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
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Mejia E, Reis RE. Molecular and morphometric data provide evidence of intraspecific variation in shape and pigmentation pattern in Otocinclus cocama (Siluriformes: Loricariidae) across major river drainages. JOURNAL OF FISH BIOLOGY 2024; 104:1042-1053. [PMID: 38149310 DOI: 10.1111/jfb.15639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/28/2023] [Accepted: 11/30/2023] [Indexed: 12/28/2023]
Abstract
Otocinclus cocama, a uniquely colored species of the loricariid catfish genus Otocinclus described solely from the type locality in the lower Ucayali River in northern Peru, is reported occurring in the Tigre River, a tributary to the Marañón River that drains a different section of the Andean Mountain range in the western Amazon. Both populations differ in the number of dark bars spanning the flanks of the body, and we investigated whether these morphotypes constitute distinct species. The body shapes of populations from the Tigre and Ucayali rivers were compared using geometric morphometrics. Although principal component analysis detected a broad overlap between populations, multivariate analysis of variance and linear driscriminat analysis revealed a subtle differentiation between the populations of the two hydrographic basins. Average body shape of the Ucayali River population tend to be slightly higher than that of the Tigre River, with the caudal peduncle stretched vertically in the Ucayali population. Multivariate regression of shape and centroid size revealed an allometric effect of 10.7% (p < 0.001), suggesting that the variation between Tigre and Ucayali populations was purely shape variation. Molecular data of coI, cytb, nd2, and 16S mitochondrial genes indicated a nucleotide diversity range from 0.001 to 0.003, and haplotypic diversity range from 0.600 ± 0.11 to 0.79 ± 0.07. The median-joining haplotype network for the concatenated matrix exhibited two divergent haplogroups related to the geographic area and separated by <10 mutational steps. The molecular species delimitation methods based on distance (automatic barcode gap discovery and assemble species by automatic partitioning) recovered two molecular lineages evolving independently, being one of the lineages formed by individuals from both populations. Tree-based methods (generalized mixed Yule coalescent and Bayesian implementation of the Poisson tree process) recovered similar topologies and supported single lineage recognition. Methods of molecular delimitation of species disclosed the high similarity between the two populations of Otocinclus cocama, further supported by the presence of old haplotypes common to both groups which could indicate that the populations still maintain gene flow. Although the morphological data reveal a subtle variation between both river basins, the molecular data suggest a weak population structuration based on hydrographic areas, but not different species lineages, therefore Otocinclus cocama is composed of a single lineage with two distinct morphotypes.
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Affiliation(s)
- Eduardo Mejia
- Laboratory of Vertebrate Systematics, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
- Departamento de Vertebrados, Programa de Pós-graduação em Ciências Biológicas (Zoologia), Universidade Federal do Rio de Janeiro, Museu Nacional, Rio de Janeiro, Brazil
| | - Roberto E Reis
- Laboratory of Vertebrate Systematics, Pontifícia Universidade Católica do Rio Grande do Sul, Porto Alegre, Brazil
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Escobar Camacho D, Barragán KS, Guayasamin JM, Gavilanes G, Encalada AC. New records of native and introduced fish species in a river basin of Western Ecuador, the Chocó-Darien Ecoregion, using DNA barcoding. PLoS One 2024; 19:e0298970. [PMID: 38457426 PMCID: PMC10923491 DOI: 10.1371/journal.pone.0298970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 02/01/2024] [Indexed: 03/10/2024] Open
Abstract
DNA barcoding, based on mitochondrial markers, is widely applied in species identification and biodiversity studies. The aim of this study was to establish a barcoding reference database of fishes inhabiting the Cube River from Western Ecuador in the Chocó-Darien Global Ecoregion (CGE), a threatened ecoregion with high diversity and endemism, and evaluate the applicability of using barcoding for the identification of fish species. Barcode sequences were obtained from seven orders, 17 families, 23 genera and 26 species, which were validated through phylogenetic analysis, morphological measurements, and literature review. Our results showed that 43% of fish species in this region are endemic, confirmed the presence of known species in the area, and included the addition of three new records of native (Hoplias microlepis, Rhamdia guatemalensis and Sicydium salvini) and an introduced species (Xiphophorus maculatus) to Ecuador. In addition, eight species were barcoded for the first time. Species identification based on barcoding and morphology showed discrepancy with species lists from previous studies in the CGE, suggesting that the current baseline of western fishes of Ecuador is still incomplete. Because this study analyzed fishes from a relatively small basin (165 km2), more molecular-based studies focusing on fish are needed to achieve a robust sequence reference library of species inhabiting Western Ecuador. The new sequences of this study will be useful for future comparisons and biodiversity monitoring, supporting the application of barcoding tools for studying fish diversity in genetically unexplored regions and to develop well-informed conservation programs.
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Affiliation(s)
- Daniel Escobar Camacho
- Laboratorio de Ecología Acuática, Instituto BIOSFERA, Universidad San Francisco de Quito, Quito, Ecuador
| | - Karla S. Barragán
- Laboratorio de Ecología Acuática, Instituto BIOSFERA, Universidad San Francisco de Quito, Quito, Ecuador
| | - Juan M. Guayasamin
- Laboratorio de Biología Evolutiva, Instituto BIOSFERA, Universidad San Francisco de Quito, Quito, Ecuador
| | - Gabriela Gavilanes
- Laboratorio de Biología Evolutiva, Instituto BIOSFERA, Universidad San Francisco de Quito, Quito, Ecuador
| | - Andrea C. Encalada
- Laboratorio de Ecología Acuática, Instituto BIOSFERA, Universidad San Francisco de Quito, Quito, Ecuador
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Limeira Filho D, França ERDR, Costa DKDP, Lima RC, Nascimento MHSD, Batista JDS, Barros MC, Fraga EDC. Molecular Evidence Reveals Taxonomic Uncertainties and Cryptic Diversity in the Neotropical Catfish of the Genus Pimelodus (Siluriformes: Pimelodidae). BIOLOGY 2024; 13:162. [PMID: 38534432 DOI: 10.3390/biology13030162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 03/28/2024]
Abstract
Pimelodus is the most speciose genus of the family Pimelodidae, and is amply distributed in the Neotropical region. The species-level taxonomy and phylogenetic relationships within this genus are still poorly resolved, however. These taxonomic problems and the general lack of data have generated major uncertainties with regard to the identification of specimens from different localities. In the present study, we applied a single-locus species delimitation approach to identify the MOTUs found within the genus Pimelodus and provide sound evidence for the evaluation of the species richness of this genus in the different river basins of the Neotropical region. The study was based on the analysis of sequences of the mitochondrial COI gene of 13 nominal species, which resulted in the identification of 24 consensus MOTUs. Only six nominal species were recovered as well-defined molecular entities by both the traditional barcoding analysis and the molecular delimitation methods, while the other seven presented cryptic diversity or persistent taxonomic uncertainties. The lineages identified from the Parnaíba ecoregions, Amazonas Estuary and Coastal Drainages may represent a much greater diversity of Pimelodus species than that recognized currently, although a more detailed study of this diversity will be necessary to provide a more definitive classification of the genus.
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Affiliation(s)
- Daniel Limeira Filho
- Graduate Program in Animal Science-PPGCA, Center of Agrarian Sciences-CCA, Maranhão State University-UEMA, São Luís 65055-310, MA, Brazil
| | - Elidy Rayane de Rezende França
- Graduate Program in Animal Science-PPGCA, Center of Agrarian Sciences-CCA, Maranhão State University-UEMA, São Luís 65055-310, MA, Brazil
| | - Dalton Kaynnan de Prado Costa
- Graduate Program in Biodiversity, Environment, and Health-PPGBAS, Caxias Center of Higher Education-CESC, Maranhão State University-UEMA, Praça Duque de Caxias, s/n-Morro do Alecrim, Centro, Caxias 65604-380, MA, Brazil
| | - Renato Correia Lima
- Graduate Program in Genetics, Conservation, and Evolutionary Biology (PPG-GCBEv), National Amazonian Research Institute-INPA, Av. André Araújo, 2936, Aleixo, Manaus 69060-001, AM, Brazil
| | - Maria Histelle Sousa do Nascimento
- Graduate Program in Biodiversity and Biotechnology-BIONORTE Network, Maranhão State University-UEMA, Cidade Universitária Paulo VI-Avenida Lourenço Vieira da Silva, n° 1.000, Jardim São Cristóvão, São Luís 665055-310, MA, Brazil
| | - Jacqueline da Silva Batista
- Graduate Program in Genetics, Conservation, and Evolutionary Biology (PPG-GCBEv), National Amazonian Research Institute-INPA, Av. André Araújo, 2936, Aleixo, Manaus 69060-001, AM, Brazil
- Molecular Biology Thematic Laboratory-LTBM, Coordination of Biodiversity-COBIO, National Amazonian Research Institute-INPA, Av. André Araújo, 2936, Petrópolis, Manaus 69067-375, AM, Brazil
| | - Maria Claudene Barros
- Graduate Program in Animal Science-PPGCA, Center of Agrarian Sciences-CCA, Maranhão State University-UEMA, São Luís 65055-310, MA, Brazil
- Graduate Program in Biodiversity, Environment, and Health-PPGBAS, Caxias Center of Higher Education-CESC, Maranhão State University-UEMA, Praça Duque de Caxias, s/n-Morro do Alecrim, Centro, Caxias 65604-380, MA, Brazil
- Graduate Program in Biodiversity and Biotechnology-BIONORTE Network, Maranhão State University-UEMA, Cidade Universitária Paulo VI-Avenida Lourenço Vieira da Silva, n° 1.000, Jardim São Cristóvão, São Luís 665055-310, MA, Brazil
- Laboratory of Molecular Biology-LABMOL, Department of Chemistry and Biology, Caxias Center of Higher Education-CESC, Maranhão State University-UEMA, Praça Duque de Caxias, s/n-Morro do Alecrim, Centro, Caxias 65604-380, MA, Brazil
| | - Elmary da Costa Fraga
- Graduate Program in Animal Science-PPGCA, Center of Agrarian Sciences-CCA, Maranhão State University-UEMA, São Luís 65055-310, MA, Brazil
- Graduate Program in Biodiversity, Environment, and Health-PPGBAS, Caxias Center of Higher Education-CESC, Maranhão State University-UEMA, Praça Duque de Caxias, s/n-Morro do Alecrim, Centro, Caxias 65604-380, MA, Brazil
- Laboratory of Genetics-LABGEN, Department of Chemistry and Biology, Caxias Center of Higher Education-CESC, Maranhão State University-UEMA, Praça Duque de Caxias, s/n-Morro do Alecrim, Centro, Caxias 65604-380, MA, Brazil
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10
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Singh M, Saini VP, Mohindra V, Ojha ML, Lal KK, Singh RK. Complete mitochondrial genome of golden variant of freshwater fish Labeo rajasthanicus (Cypriniformes: Cyprinidae): endemic to India. Mitochondrial DNA B Resour 2023; 8:1364-1367. [PMID: 38196791 PMCID: PMC10776062 DOI: 10.1080/23802359.2023.2290128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/27/2023] [Indexed: 01/11/2024] Open
Abstract
The complete mitochondrial genome of the freshwater fish species Labeo rajasthanicus was obtained, using Illumina NovaSeq 6000 with 2 × 150 bp paired-end sequencing. The mitogenome of L. rajasthanicus is 16,738 bp in length (GenBank accession no.: OQ834146), comprised of 13 protein-coding genes, 22 tRNA genes, two rRNA genes, and a control region, i.e. D-loop. The arrangement of genes was found to be identical to other Cypriniformes fish mitogenome, available in the NCBI database. The taxonomic status of L. rajasthanicus as a valid species was debated by some researchers and it was considered a synonym of L. boggut. However, phylogenetic analysis in the present study supports the species validity of L. rajasthanicus, as it showed a distinct node well separated from L. boggut and supported by a high bootstrap value. Furtherly, the pairwise genetic divergence among studied species showed the divergence between L. rajasthanicus and L. boggut as 1.6% whereas the minimum divergence was found to be 0.13% with L. dussumieri followed by L. fimbriatus (0.58%) and L. gonius (0.63%). The complete mitogenome of L. rajasthanicus will also be useful as a baseline reference genome for the reconstruction and annotation of the mitogenome of other Labeo species.
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Affiliation(s)
- Mamta Singh
- College of Fisheries, Bihar Animal Sciences University, Kishanganj, India
| | - Ved Prakash Saini
- College of Fisheries, Bihar Animal Sciences University, Kishanganj, India
| | | | - Manohar Lal Ojha
- College of Fisheries, Maharana Pratap University of Agriculture & Technology, Udaipur, India
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11
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Nascimento MHS, Aragão DG, Silva JLN, Lima RC, Birindelli JLO, Fraga EC, Barros MC. The DNA barcode reveals cryptic diversity and a new record for the genus Leporinus (Characiformes, Anostomidae) in the hydrographic basins of central northern Brazil. PeerJ 2023; 11:e15184. [PMID: 37250713 PMCID: PMC10225125 DOI: 10.7717/peerj.15184] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 03/15/2023] [Indexed: 05/31/2023] Open
Abstract
Leporinus is one of the most speciose genera of the order Characiformes, with 81 valid species distributed throughout much of Central and South America. The considerable diversity of this genus has generated extensive debate on its classification and internal arrangement. In the present study, we investigated the species diversity of the genus Leporinus in central northern Brazil, and conclude that six valid species-Leporinus maculatus, Leporinus unitaeniatus, Leporinus affinis, Leporinus venerei, Leporinus cf. friderici, and Leporinus piau-are found in the hydrographic basins of the Brazilian states of Maranhão, Piauí, and Tocantins. We analyzed 182 sequences of the Cytochrome Oxidase subunit I gene, of which, 157 were obtained from Leporinus specimens collected from the basins of the Itapecuru, Mearim, Turiaçu, Pericumã, Periá, Preguiças, Parnaíba, and Tocantins rivers. The species delimitation analyses, based on the ABGD, ASAP, mPTP, bPTP, and GMYC methods, revealed the presence of four distinct molecular operational taxonomic units (MOTUs), identified as L. maculatus, L. unitaeniatus, L. affinis, and L. piau (from the Parnaíba River). The bPTP method restricted L. venerei to a single MOTU, and confirmed the occurrence of this species in the rivers of Maranhão for the first time. The separation of L. cf. friderici into two clades and the subsequent formation of different operational taxonomic units was consistent with polyphyly in this species, which indicates the existence of cryptic diversity. The arrangement of L. cf. friderici and L. piau in two different clades supports the conclusion that the L. piau specimens from Maranhão were misidentified, based on their morphological traits, reflecting the taxonomic inconsistencies that exist among morphologically similar species. Overall, then, the species delimitation methods employed in the present study indicated the presence of six MOTUs-L. maculatus, L. unitaenitus, L. affinis, L. cf. friderici, L. venerei, and L. piau. In the case of two other MOTUs identified in the present study, one (L. venerei) is a new record for the state of Maranhão, and we believe that the other represents a population of L. piau from the basin of the Parnaíba River.
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Affiliation(s)
- Maria Histelle Sousa Nascimento
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
- Graduate Network Program in the Biodiversity and Biotechnology of Legal Amazonia, Biological Sciences Institute, Belem, Pará, Brazil
| | - Deborah Gaído Aragão
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
| | | | - Renato Correia Lima
- Graduate Program in Genetics, Conservation, and Evolutionary Biology, National Amazonian Research Institute, Manaus, Amazonas, Brazil
| | | | - Elmary Costa Fraga
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
| | - Maria Claudene Barros
- Department of Chemistry and Biology, Maranhão State University, Caxias, Maranhão, Brazil
- Graduate Network Program in the Biodiversity and Biotechnology of Legal Amazonia, Biological Sciences Institute, Belem, Pará, Brazil
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12
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McLaughlin JF, Aguilar C, Bernstein JM, Navia-Gine WG, Cueto-Aparicio LE, Alarcon AC, Alarcon BD, Collier R, Takyar A, Vong SJ, López-Chong OG, Driver R, Loaiza JR, De León LF, Saltonstall K, Lipshutz SE, Arcila D, Brock KM, Miller MJ. Comparative phylogeography reveals widespread cryptic diversity driven by ecology in Panamanian birds. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023. [PMID: 36993716 DOI: 10.1101/2023.01.26.525769] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
UNLABELLED Widespread species often harbor unrecognized genetic diversity, and investigating the factors associated with such cryptic variation can help us better understand the forces driving diversification. Here, we identify potential cryptic species based on a comprehensive dataset of COI mitochondrial DNA barcodes from 2,333 individual Panamanian birds across 429 species, representing 391 (59%) of the 659 resident landbird species of the country, as well as opportunistically sampled waterbirds. We complement this dataset with additional publicly available mitochondrial loci, such as ND2 and cytochrome b, obtained from whole mitochondrial genomes from 20 taxa. Using barcode identification numbers (BINs), we find putative cryptic species in 19% of landbird species, highlighting hidden diversity in the relatively well-described avifauna of Panama. Whereas some of these mitochondrial divergence events corresponded with recognized geographic features that likely isolated populations, such as the Cordillera Central highlands, the majority (74%) of lowland splits were between eastern and western populations. The timing of these splits are not temporally coincident across taxa, suggesting that historical events, such as the formation of the Isthmus of Panama and Pleistocene climatic cycles, were not the primary drivers of cryptic diversification. Rather, we observed that forest species, understory species, insectivores, and strongly territorial species-all traits associated with lower dispersal ability-were all more likely to have multiple BINs in Panama, suggesting strong ecological associations with cryptic divergence. Additionally, hand-wing index, a proxy for dispersal capability, was significantly lower in species with multiple BINs, indicating that dispersal ability plays an important role in generating diversity in Neotropical birds. Together, these results underscore the need for evolutionary studies of tropical bird communities to consider ecological factors along with geographic explanations, and that even in areas with well-known avifauna, avian diversity may be substantially underestimated. LAY SUMMARY - What factors are common among bird species with cryptic diversity in Panama? What role do geography, ecology, phylogeographic history, and other factors play in generating bird diversity?- 19% of widely-sampled bird species form two or more distinct DNA barcode clades, suggesting widespread unrecognized diversity.- Traits associated with reduced dispersal ability, such as use of forest understory, high territoriality, low hand-wing index, and insectivory, were more common in taxa with cryptic diversity. Filogeografía comparada revela amplia diversidad críptica causada por la ecología en las aves de Panamá. RESUMEN Especies extendidas frecuentemente tiene diversidad genética no reconocida, y investigando los factores asociados con esta variación críptica puede ayudarnos a entender las fuerzas que impulsan la diversificación. Aquí, identificamos especies crípticas potenciales basadas en un conjunto de datos de códigos de barras de ADN mitocondrial de 2,333 individuos de aves de Panama en 429 especies, representando 391 (59%) de las 659 especies de aves terrestres residentes del país, además de algunas aves acuáticas muestreada de manera oportunista. Adicionalmente, complementamos estos datos con secuencias mitocondriales disponibles públicamente de otros loci, tal como ND2 o citocroma b, obtenidos de los genomas mitocondriales completos de 20 taxones. Utilizando los números de identificación de código de barras (en ingles: BINs), un sistema taxonómico numérico que proporcina una estimación imparcial de la diversidad potencial a nivel de especie, encontramos especies crípticas putativas en 19% de las especies de aves terrestres, lo que destaca la diversidad oculta en la avifauna bien descrita de Panamá. Aunque algunos de estos eventos de divergencia conciden con características geográficas que probablemente aislaron las poblaciones, la mayoría (74%) de la divergencia en las tierras bajas se encuentra entre las poblaciones orientales y occidentales. El tiempo de esta divergencia no coincidió entre los taxones, sugiriendo que eventos históricos tales como la formación del Istmo de Panamá y los ciclos climáticos del pleistoceno, no fueron los principales impulsores de la especiación. En cambio, observamos asociaciones fuertes entre las características ecológicas y la divergencia mitocondriale: las especies del bosque, sotobosque, con una dieta insectívora, y con territorialidad fuerte mostraton múltiple BINs probables. Adicionalmente, el índice mano-ala, que está asociado a la capacidad de dispersión, fue significativamente menor en las especies con BINs multiples, sugiriendo que la capacidad de dispersión tiene un rol importamente en la generación de la diversidad de las aves neotropicales. Estos resultos demonstran la necesidad de que estudios evolutivos de las comunidades de aves tropicales consideren los factores ecológicos en conjunto con las explicaciones geográficos. Palabras clave: biodiversidad tropical, biogeografía, códigos de barras, dispersión, especies crípticas.
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McLaughlin JF, Aguilar C, Bernstein JM, Navia-Gine WG, Cueto-Aparicio LE, Alarcon AC, Alarcon BD, Collier R, Takyar A, Vong SJ, López-Chong OG, Driver R, Loaiza JR, De León LF, Saltonstall K, Lipshutz SE, Arcila D, Brock KM, Miller MJ. Comparative phylogeography reveals widespread cryptic diversity driven by ecology in Panamanian birds. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.15.530646. [PMID: 36993716 PMCID: PMC10055050 DOI: 10.1101/2023.03.15.530646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Widespread species often harbor unrecognized genetic diversity, and investigating the factors associated with such cryptic variation can help us better understand the forces driving diversification. Here, we identify potential cryptic species based on a comprehensive dataset of COI mitochondrial DNA barcodes from 2,333 individual Panamanian birds across 429 species, representing 391 (59%) of the 659 resident landbird species of the country, as well as opportunistically sampled waterbirds. We complement this dataset with additional publicly available mitochondrial loci, such as ND2 and cytochrome b, obtained from whole mitochondrial genomes from 20 taxa. Using barcode identification numbers (BINs), we find putative cryptic species in 19% of landbird species, highlighting hidden diversity in the relatively well-described avifauna of Panama. Whereas some of these mitochondrial divergence events corresponded with recognized geographic features that likely isolated populations, such as the Cordillera Central highlands, the majority (74%) of lowland splits were between eastern and western populations. The timing of these splits are not temporally coincident across taxa, suggesting that historical events, such as the formation of the Isthmus of Panama and Pleistocene climatic cycles, were not the primary drivers of cryptic diversification. Rather, we observed that forest species, understory species, insectivores, and strongly territorial species-all traits associated with lower dispersal ability-were all more likely to have multiple BINs in Panama, suggesting strong ecological associations with cryptic divergence. Additionally, hand-wing index, a proxy for dispersal capability, was significantly lower in species with multiple BINs, indicating that dispersal ability plays an important role in generating diversity in Neotropical birds. Together, these results underscore the need for evolutionary studies of tropical bird communities to consider ecological factors along with geographic explanations, and that even in areas with well-known avifauna, avian diversity may be substantially underestimated.
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Affiliation(s)
- J. F. McLaughlin
- Department of Biology, University of Oklahoma, Norman, OK, USA
- Sam Noble Oklahoma Museum of Natural History Norman, OK, USA
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, USA
| | - Celestino Aguilar
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama, Republic of Panama
| | - Justin M. Bernstein
- Department of Biology, Villanova University, Villanova, PA, USA
- Center for Genomics, University of Kansas, Lawrence, KS, USA
| | - Wayra G. Navia-Gine
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Pacific Biosciences, 1305 O’Brien Dr, Menlo Park, CA, USA
| | | | | | | | - Rugger Collier
- Department of Biology, University of Oklahoma, Norman, OK, USA
| | - Anshule Takyar
- Department of Biology, University of Oklahoma, Norman, OK, USA
| | - Sidney J. Vong
- Department of Biology, University of Oklahoma, Norman, OK, USA
| | | | - Robert Driver
- Department of Biology, East Carolina University, Greenville, NC, USA
| | - Jose R. Loaiza
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama, Republic of Panama
| | - Luis F. De León
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Centro de Biodiversidad y Descubrimiento de Drogas, Instituto de Investigaciones Científicas y Servicios de Alta Tecnología (INDICASAT AIP), Panama, Republic of Panama
- Department of Biology, University of Massachusetts Boston, Boston, MA, USA
| | | | | | - Dahiana Arcila
- Department of Biology, University of Oklahoma, Norman, OK, USA
- Sam Noble Oklahoma Museum of Natural History Norman, OK, USA
| | - Kinsey M. Brock
- Department of Environmental Science, Policy, and Management, University of California Berkeley, Berkeley, CA, USA
- Museum of Vertebrate Zoology, University of California Berkeley, Berkeley, CA, USA
| | - Matthew J. Miller
- Department of Biology, University of Oklahoma, Norman, OK, USA
- Sam Noble Oklahoma Museum of Natural History Norman, OK, USA
- Smithsonian Tropical Research Institute, Panama, Republic of Panama
- Reneco International Wildlife Consultants, Abu Dhabi, UAE
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Marajó L, Viana PF, Ferreira AMV, Py-Daniel LHR, Cioffi MDB, Sember A, Feldberg E. Chromosomal rearrangements and the first indication of an ♀X 1 X 1 X 2 X 2 /♂X 1 X 2 Y sex chromosome system in Rineloricaria fishes (Teleostei: Siluriformes). JOURNAL OF FISH BIOLOGY 2023; 102:443-454. [PMID: 36427042 DOI: 10.1111/jfb.15275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
Rineloricaria is the most diverse genus within the freshwater fish subfamily Loricariinae, and it is widely distributed in the Neotropical region. Despite limited cytogenetic data, records from southern and south-eastern Brazil suggest a high rate of chromosomal rearrangements in this genus, mirrored in remarkable inter- and intraspecific karyotype variability. In the present work, we investigated the karyotype features of Rineloricaria teffeana, an endemic representative from northern Brazil, using both conventional and molecular cytogenetic techniques. We revealed different diploid chromosome numbers (2n) between sexes (33♂/34♀), which suggests the presence of an ♀X1 X1 X2 X2 /♂X1 X2 Y multiple sex chromosome system. The male-limited Y chromosome was the largest and the only biarmed element in the karyotype, implying Y-autosome fusion as the most probable mechanism behind its origination. C-banding revealed low amounts of constitutive heterochromatin, mostly confined to the (peri)centromeric regions of most chromosomes (including the X2 and the Y) but also occupying the distal regions of a few chromosomal pairs. The chromosomal localization of the 18S ribosomal DNA (rDNA) clusters revealed a single site on chromosome pair 4, which was adjacent to the 5S rDNA cluster. Additional 5S rDNA loci were present on the autosome pair 8, X1 chromosome, and in the presumed fusion point on the Y chromosome. The probe for telomeric repeat motif (TTAGGG)n revealed signals of variable intensities at the ends of all chromosomes except for the Y chromosome, where no detectable signals were evidenced. Male-to-female comparative genomic hybridization revealed no sex-specific or sex-biased repetitive DNA accumulations, suggesting a presumably low level of neo-Y chromosome differentiation. We provide evidence that rDNA sites might have played a role in the formation of this putative multiple sex chromosome system and that chromosome fusions originate through different mechanisms among different Rineloricaria species.
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Affiliation(s)
- Leandro Marajó
- Laboratório de Genética Animal, Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Patrik Ferreira Viana
- Laboratório de Genética Animal, Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Alex Matheus Viana Ferreira
- Laboratório de Genética Animal, Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Lúcia Helena Rapp Py-Daniel
- Coleção de Peixes, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
| | - Marcelo de Bello Cioffi
- Laboratório de Citogenética de Peixes, Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Alexandr Sember
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Libechov, Czech Republic
| | - Eliana Feldberg
- Laboratório de Genética Animal, Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Coordenação de Biodiversidade, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
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15
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Zeng XS, Sun CH, Huang XY, Lao YL, Huang JL, Li S, Zhang Q. DNA barcoding of Scomberomorus (Scombridae, Actinopterygii) reveals cryptic diversity and misidentifications. Zookeys 2022; 1135:157-170. [PMID: 36761794 PMCID: PMC9836712 DOI: 10.3897/zookeys.1135.93631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 11/15/2022] [Indexed: 12/16/2022] Open
Abstract
The genus Scomberomorus is economically important; however, the taxonomic status and phylogenetic relationships in this genus are not clearly resolved, making it difficult to effectively protect and exploit fish resources. To clarify the taxonomic status of Scomberomorus species, mitochondrial cytochrome c oxidase I (COI) gene sequences of 150 samples were analyzed. The average genetic distance among 14 species was approximately 11 times greater than the distances within species, in accordance with the '10× rule' of species identification. Five of the 14 species did not form monophyletic clades based on a Bayesian inference gene tree. The application of four DNA-based species delimitation methods (automatic barcode gap discovery, barcode index numbers, Poisson tree process, and the K/θ method) yielded several key results. (1) Cryptic species were detected within Scomberomoruscommerson. (2) A Scomberomorusqueenslandicus sample from Australia was misidentified as S.commerson in the Barcode of Life Data System (BOLD). (3) Specimens originally identified as Scomberomorusguttatus was differentiated into four OTUs or species, two in the Yellow, South China, and Java seas, and two in geographically distant areas, one each in the Arabian Sea and the Bay of Bengal. (4) Six specimens from South Africa originally identified as S.plurilineatus most likely do not belong to the species. (5) Specimens identified as S.maculatus and S.regalis were conspecific; however, introgression cannot be ruled out. Our findings revealed cryptic diversity and difficulties in morphological identification of species in the genus Scomberomorus. This study provides scientifically based support for the conservation of germplasm resources of the genus Scomberomorus.
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Affiliation(s)
- Xiao-Shu Zeng
- Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, ChinaJinan UniversityGuangzhouChina
| | - Cheng-He Sun
- Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, ChinaJinan UniversityGuangzhouChina
| | - Xiao-Ying Huang
- Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, ChinaJinan UniversityGuangzhouChina
| | - Ye-Ling Lao
- Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, ChinaJinan UniversityGuangzhouChina
| | - Jin-Long Huang
- Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, ChinaJinan UniversityGuangzhouChina
| | - Sha Li
- Chinese Sturgeon Research Institute, China Three Gorges Corporation, Yichang 443100, Hubei, ChinaChinese Sturgeon Research Institute, China Three Gorges CorporationYichangChina,Hubei Key Laboratory of Three Gorges Project for Conservation of Fishes, Yichang 443100, Hubei, ChinaHubei Key Laboratory of Three Gorges Project for Conservation of FishesYichangChina
| | - Qun Zhang
- Department of Ecology and Institute of Hydrobiology, Jinan University, Guangzhou 510632, ChinaJinan UniversityGuangzhouChina
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16
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Gavazzoni M, Pavanelli CS, Graça WJ, De Oliveira EA, Moreira-Filho O, Margarido VP. Species delimitation in Psalidodon fasciatus (Cuvier, 1819) complex (Teleostei: Characidae) from three hydrographic basins. Biol J Linn Soc Lond 2022. [DOI: 10.1093/biolinnean/blac139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Abstract
Psalidodon fasciatus is a complex of several fish species widely distributed in Brazilian hydrographic systems that share morphological characteristics and show a high taxonomic complexity and genetic variability. Cytogenetic and molecular analyses were carried out in populations from three Brazilian hydrographic basins, aiming to contribute to systematic and biogeographical knowledge of the group. The chromosomal markers verified the occurrence of species-specific characters and indicated the existence of six distinct operational taxonomic units (OTUs): P. fasciatus (São Francisco River basin), Psalidodon sp. 1, Psalidodon sp. 2 and Psalidodon eigenmanniorum (Uruguay River basin); and Psalidodon sp. 3 and Psalidodon sp. 4 (Paraná River basin). The chromosomal markers showed more similarities among species from the Uruguay River and São Francisco River basins. DNA barcoding analyses (assemble species by automatic partitioning, neighbour-joining, maximum likelihood and maximum parsimony) indicated the existence of at least three distinct OTUs. The chromosomal evolution rates were demonstrated to be higher than the molecular evolution rates, reinforcing the importance of using chromosomal markers to delimit OTUs in integrative taxonomy studies. These results suggest that the São Francisco River Basin population (the type locality) should be considered as true P. fasciatus, and the others, until now treated as Psalidodon aff. fasciatus, are cryptic species.
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Affiliation(s)
- Mariane Gavazzoni
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná , Cascavel, Paraná , Brazil
- Pós-graduação em Biologia Comparada, Centro de Ciências Biológicas, Universidade Estadual de Maringá , Maringá, Paraná , Brazil
| | - Carla S Pavanelli
- Pós-graduação em Biologia Comparada, Centro de Ciências Biológicas, Universidade Estadual de Maringá , Maringá, Paraná , Brazil
- Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Centro de Ciências Biológicas, Universidade Estadual de Maringá , Maringá, Paraná , Brazil
| | - Weferson J Graça
- Pós-graduação em Biologia Comparada, Centro de Ciências Biológicas, Universidade Estadual de Maringá , Maringá, Paraná , Brazil
- Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Centro de Ciências Biológicas, Universidade Estadual de Maringá , Maringá, Paraná , Brazil
- Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá , Maringá, Paraná , Brazil
| | - Ezequiel A De Oliveira
- Secretaria de Estado de Educação do Mato Grosso, São Felix do Araguaia , Mato Grosso , Brazil
| | - Orlando Moreira-Filho
- Departamento de Genética e Evolução, Universidade Federal de São Carlos , São Carlos, São Paulo , Brazil
| | - Vladimir P Margarido
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual do Oeste do Paraná , Cascavel, Paraná , Brazil
- Pós-graduação em Biologia Comparada, Centro de Ciências Biológicas, Universidade Estadual de Maringá , Maringá, Paraná , Brazil
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Bektas Y, Aksu İ, Kaya C, Bayçelebi E, Turan D. DNA barcoding and species delimitation of the genus Oxynoemacheilus (Teleostei: Nemacheilidae) in Anatolia. JOURNAL OF FISH BIOLOGY 2022; 101:505-514. [PMID: 35607971 DOI: 10.1111/jfb.15114] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
The DNA barcoding approach was used for the determination of evolutionary relationships and species delimitation of the genus Oxynoemacheilus (Teleostei: Nemacheilidae). The COI barcode region (615 bp amplicon) was used to barcode 444 individuals from 64 morphologically identified species in the genus Oxynoemacheilus and 189 haplotypes were identified. The average of the interspecific p distance (9.59%) was about 21-fold higher than the average intraspecific distance (0.44%). A general genetic threshold of 1.46% sequence divergence was defined for species delimitation. The multiple species delimitation methods (BCM, GMYC, bPTP and TCS) revealed a total of 62 molecular operational taxonomic units for 64 morphospecies with a new loach species from the BuyukMelen River. Neighbour-joining, maximum likelihood and Bayesian inference analyses indicated that all haplotypes were clustered into 62 clades, which corresponded to Oxynoemacheilus species, with strong bootstrap support (≥95%). Furthermore, all samples grouped in concurrence with the taxonomic status of the species except for species groups (O. germencicus-O. cinicus-O. mesudae and O. leontinae-O. namiri) that were showed intraspecific overlap in genetic diversity for COI-based barcodes. In conclusion, our analyses indicate that COI-based barcodes provide reliable species discrimination. Therefore, we currently recommend COI barcodes as the suitable barcode for genus Oxynoemacheilus.
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Affiliation(s)
- Yusuf Bektas
- Deparment of Biology, Faculty of Arts and Sciences, Recep Tayyip Erdogan University, Rize, Turkey
| | - İsmail Aksu
- Faculty of Fisheries and Aquatic Sciences, Recep Tayyip Erdogan University, Rize, Turkey
| | - Cüneyt Kaya
- Faculty of Fisheries and Aquatic Sciences, Recep Tayyip Erdogan University, Rize, Turkey
| | - Esra Bayçelebi
- Faculty of Fisheries and Aquatic Sciences, Recep Tayyip Erdogan University, Rize, Turkey
| | - Davut Turan
- Faculty of Fisheries and Aquatic Sciences, Recep Tayyip Erdogan University, Rize, Turkey
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Phylogeography of Sarmarutilus rubilio (Cypriniformes: Leuciscidae): Complex Genetic Structure, Clues to a New Cryptic Species and Further Insights into Roaches Phylogeny. Genes (Basel) 2022; 13:genes13061071. [PMID: 35741833 PMCID: PMC9222716 DOI: 10.3390/genes13061071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 05/27/2022] [Accepted: 06/13/2022] [Indexed: 02/06/2023] Open
Abstract
Italy hosts a large number of endemic freshwater fish species due to complex geological events which promoted genetic differentiation and allopatric speciation. Among them, the South European roach Sarmarutilus rubilio inhabits various freshwater environments in three different ichthyogeographic districts. We investigated the genetic diversity of S. rubilio using two different mitochondrial markers (COI and CR), aiming to define its relationship with other similar taxa from the Balkan area and, from a phylogeographic perspective, test the effects of past hydrogeological dynamics of Italian river basins on its genetic structure and demographic history. Our analysis highlighted a marked genetic divergence between S. rubilio and all other roach species and, among Italian samples, revealed the existence of three deeply divergent geographic haplogroups, named A, B and C. Haplogroup C likely corresponds to a new putative cryptic species and is located at the northern border of the South European roach range; haplogroup B is restricted to Southern Italy; and haplogroup A is widespread across the entire range and in some sites it is in co-occurrence with C or B. Their origin is probably related to the tectonic uplifting of the Apuan Alps in the north and of the Colli Albani Volcano in the south during the Pleistocene, which promoted isolation and vicariance followed by secondary contacts.
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da Rocha RH, Fernandes CA, Bignotto TS, Margarido VP, Tencatt LFC, da Graça WJ, Gubiani ÉA. Integrated analysis reveals a new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) in the lower Iguassu River, Brazil. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-021-00534-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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FREYHOF JÖRG, KAYA CÜNEYT, GEIGER MATTHIASF. A practical approach to revise the Oxynoemacheilus bergianus species group (Teleostei: Nemacheilidae). Zootaxa 2022; 5128:151-194. [DOI: 10.11646/zootaxa.5128.2.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 11/04/2022]
Abstract
The Oxynoemacheilus bergianus species group is revised based on tree topology (ML, NJ, MP), distance (K2P and ASAP) and Poisson tree process analyses of DNA barcode data tested against morphometric and morphological characters including colour patterns. The O. bergianus species group is distinguished from other Oxynoemacheilus groups based on morphological characters: its constituent species have a slender caudal peduncle, a suborbital flap in the male, a mottled or blotched colour pattern, and lack bold, black spots on the caudal-fin base. It is also supported as a monophyletic unit in our molecular analysis.
The O. bergianus group includes 10 molecular clades following congruently well-supported NJ, MP and ML based entities. Species described as O. bergianus, O. banarescui, O. erdali, O. fatsaensis, O. samanticus, and O. simavicus from Turkey, O. lenkoranensis from Azerbaijan, and O. longipinnis and O. parvinae from Iran belong to this species group. The group includes also four unnamed molecular clades. We were unable to detect external differences between any of the molecular clades in colour pattern or any morphometric or morphological characters examined. In the 10 molecular clades in the O. bergianus species group, the intraclade K2P distance ranges from 0.0–1.8% while the distances between molecular clades ranges from 0.6–5.9%. To resolve the species diversity of this group, we also analysed the intraspecific and interspecific variability in the K2P distance of DNA barcode data from 53 other Oxynoemacheilus species. Here, the intraspecific variability ranges from 0.0–2.4% while the interspecific K2P distance ranges from 1.2–20.8%. In the O. bergianus species group, only four groups are detected by the mPTP species delimitation approach distinguished by a K2P distance of 2.9% or more. We treat these four groups as valid species, corresponding to O. banarescui, O. bergianus, O. fatsaensis, and O. simavicus. Oxynoemacheilus samanticus from the Kızılırmak and Seyhan drainages, O. lenkoranensis from the Caspian basin, O. erdali from the Euphrates, and O. longipinnis and O. parvinae from the Tigris drainage are treated as synonyms of O. bergianus. Fishes from an unnamed molecular clade from the upper Tigris, and from a second unnamed clade from the upper Euphrates, are both identified as O. bergianus. Oxynoemacheilus bergianus might be a junior synonym of O. bergi from the Kura. The distribution range of O. simavicus, described from the Simav drainage in the Marmara basin, is expanded to the east and two molecularly differentiated population groups occur in the Sakarya drainage, the Büyük Melen River and potentially in other adjacent coastal streams. Oxynoemacheilus fatsaensis, described from the coastal stream Elekçi in northern Anatolia, is also widespread in the Yeşilırmak drainage. Morphological characters proposed to distinguish O. fatsaensis from the other species of the O. bergianus group could not be confirmed by our data on fishes from the Yeşilırmak. This study also discusses the theoretical background, our reasons for conducting this revision in the way we did, and what the alternatives would be.
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Mari-Ribeiro IP, Scorsim B, Oliveira AVD, Portela-Castro ALDB. Cytogenetic and Molecular Characterization of Oligosarcus pintoi (Characidae): A New Record of Supernumerary Chromosome in this Species. Zebrafish 2022; 19:71-80. [PMID: 35394373 DOI: 10.1089/zeb.2021.0065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The genus Oligosarcus currently comprises 24 valid species distributed in the major river basins of South America. In this group, nine species were cytogenetically investigated, and found to share a diploid number of 50 chromosomes. Despite the conservation of the diploid number, variations in the karyotypic formula, number and position of the nucleolar organizer regions, and longitudinal bands have been described between both species and populations. In this study, we present cytogenetic and molecular data from Oligosarcus pintoi specimens from the Keller River, a tributary of the Ivaí River (Upper Paraná basin), using DNA barcoding and cytogenetic markers (C-band, silver-stained nucleolar organizer regions, and fluorescence in situ hybridization of 18S and 5S rDNA). The genetic inferences reached after analyzing the cytochrome c oxidade subunit 1 gene allowed us to confirm the identity of the individuals with 2n = 50 chromosomes. However, one specimen contained a medium subtelocentric supernumerary chromosome (2n = 51). This is the second record of additional chromosomes in O. pintoi, thereby confirming the existence of a supernumerary chromosome in allopatric populations of this species, a fact that demonstrates an evolutionary path that is divergent from other populations and/or species of Oligosarcus analyzed so far, contributing to the karyotypic diversification of the group.
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Affiliation(s)
- Isabelle Pereira Mari-Ribeiro
- Programa de Pós-graduação em Ciências Biológicas, Universidade Estadual de Maringá, Maringá, Brazil.,Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Bárbara Scorsim
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil.,Programa de Pós-graduação em Ecologia de Ambientes Aquáticos Continentais, Universidade Estadual de Maringá, Maringá, Brazil
| | - Alessandra Valéria de Oliveira
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil.,Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá, Maringá, Brazil
| | - Ana Luiza de Brito Portela-Castro
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil.,Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá, Maringá, Brazil
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Tsoupas A, Papavasileiou S, Minoudi S, Gkagkavouzis K, Petriki O, Bobori D, Sapounidis A, Koutrakis E, Leonardos I, Karaiskou N, Triantafyllidis A. DNA barcoding identification of Greek freshwater fishes. PLoS One 2022; 17:e0263118. [PMID: 35081163 PMCID: PMC8791500 DOI: 10.1371/journal.pone.0263118] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 01/12/2022] [Indexed: 11/18/2022] Open
Abstract
Biodiversity is a key factor for the functioning and efficiency of an ecosystem. Greece, though covering a relatively small surface area, hosts a great deal of species diversity. This is especially true for freshwater fishes. In recent years, the traditional methods of species identification have been supplemented by the use of molecular markers. The present study therefore aims to extensively produce DNA barcodes for Greek freshwater fish species and investigate thoroughly if the presently accepted species classification is in agreement with molecular data. A 624-bases long fragment of the COI gene was sequenced, from 406 freshwater fish specimens belonging to 24 genera and originating from 18 lake and river sites. These sequences were used along with 596 sequences from the same genera, recovered from BOLD, for the construction of phylogenetic trees and the estimation of genetic distances between individuals. In total, 1002 sequences belonging to 72 species were analyzed. The method was found to be effective for 55 of 72 studied species. 17 closely related species with low interspecific genetic distances were observed, for which further study is proposed. It should also be noted that, in four cases, cryptic diversity was observed, where groups originally identified as one species exhibited genetic distance great enough to be separated into discrete species. Region specific haplotypes were also detected within populations of 14 species, giving the possibility to identify even the geographic origin of a species. Our findings are discussed in the light of the rich history of the Balkan peninsula and provide a significant steppingstone for the further study of Greek and European freshwater fish biodiversity.
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Affiliation(s)
- Alexandros Tsoupas
- Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Laboratory of Animal Population Genetics, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sofia Papavasileiou
- Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Laboratory of Animal Population Genetics, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Styliani Minoudi
- Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Laboratory of Animal Population Genetics, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Bioanalysis and Omics (BIOMIC), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki, Greece
| | - Konstantinos Gkagkavouzis
- Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Laboratory of Animal Population Genetics, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Bioanalysis and Omics (BIOMIC), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki, Greece
| | - Olga Petriki
- Faculty of Sciences, Department of Zoology, Laboratory of Ichthyology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitra Bobori
- Faculty of Sciences, Department of Zoology, Laboratory of Ichthyology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- * E-mail: (DB); (AT)
| | - Argyrios Sapounidis
- Department of Inland Waters and Lagoons, Fisheries Research Institute, Hellenic Agricultural Organization “DEMETER”, Nea Peramos, Kavala, Greece
| | - Emmanouil Koutrakis
- Department of Inland Waters and Lagoons, Fisheries Research Institute, Hellenic Agricultural Organization “DEMETER”, Nea Peramos, Kavala, Greece
| | - Ioannis Leonardos
- Department of Biological Applications and Technologies, Laboratory of Zoology, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Nikoleta Karaiskou
- Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Laboratory of Animal Population Genetics, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Bioanalysis and Omics (BIOMIC), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki, Greece
| | - Alexandros Triantafyllidis
- Faculty of Sciences, Department of Genetics, Development and Molecular Biology, Laboratory of Animal Population Genetics, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- Bioanalysis and Omics (BIOMIC), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki, Greece
- * E-mail: (DB); (AT)
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23
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OUP accepted manuscript. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlac018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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24
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OUP accepted manuscript. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlac030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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25
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OUP accepted manuscript. Zool J Linn Soc 2022. [DOI: 10.1093/zoolinnean/zlac026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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26
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Azambuja M, Marcondes DS, Nogaroto V, Moreira-Filho O, Vicari MR. Population structuration and chromosomal features homogeneity in Parodon nasus (Characiformes: Parodontidae): A comparison between Lower and Upper Paraná River representatives. NEOTROPICAL ICHTHYOLOGY 2022. [DOI: 10.1590/1982-0224-2021-0162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT The ichthyofauna of the La Plata hydrographic basin is divided into Upper and Lower Paraná River systems due to the geographic isolation of the Sete Quedas waterfalls, currently flooded by the lake of the Itaipu dam. In Parodontidae, pairs of species, or groups of cryptic species were described between these systems. Although genetic isolation and speciation have already been proposed in other species in the group, Parodon nasus has been maintained as a valid species and distributed throughout the La Plata river basin. In this perspective, specimens of P. nasus from four different sampling sites in the Upper and Lower Paraná River systems were compared regarding the karyotypes, molecular analyzes of population biology and species delimitation to investigate their genetic and population isolation in the La Plata river basin. Despite a geographic barrier and the immense geographic distance separating the specimens sampled from the Lower Paraná River system compared to those from the Upper Paraná River, the data obtained showed P. nasus as a unique taxon. Thus, unlike other species of Parodontidae that showed diversification when comparing the groups residing in the Lower versus Upper Paraná River, P. nasus showed a population structure and a karyotypic homogeneity.
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Ximenes AM, Bittencourt PS, Machado VN, Hrbek T, Farias IP. Mapping the hidden diversity of the Geophagus sensu stricto species group (Cichlidae: Geophagini) from the Amazon basin. PeerJ 2021; 9:e12443. [PMID: 34909270 PMCID: PMC8641480 DOI: 10.7717/peerj.12443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/15/2021] [Indexed: 11/20/2022] Open
Abstract
South American freshwater ichthyofauna is taxonomically the most diverse on the planet, yet its diversity is still vastly underestimated. The Amazon basin alone holds more than half of this diversity. The evidence of this underestimation comes from the backlog of morphologically distinct, yet undescribed forms deposited in museum collections, and from DNA-based inventories which consistently identify large numbers of divergent lineages within even well-studied species groups. In the present study, we investigated lineage diversity within the Geophagus sensu stricto species group. To achieve these objectives, we analyzed 337 individuals sampled from 77 locations within and outside the Amazon basin representing 10 nominal and six morphologically distinct but undescribed species. We sequenced the mitochondrial cytochrome c oxidase subunit I (COI) and delimited lineages using four different single-locus species discovery methods (mPTP-15 lineages; LocMin-14 lineages; bGMYC-18 lineages; and GMYC-30 lineages). The six morphologically distinct but undescribed species were also delimited by the majority of the species discovery methods. Five of these lineages are restricted to a single collection site or a watershed and their habitats are threatened by human activities such as deforestation, agricultural activities and construction of hydroelectric plants. Our results also highlight the importance of combining DNA and morphological data in biodiversity assessment studies especially in taxonomically diverse tropical biotas.
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Affiliation(s)
- Aline Mourão Ximenes
- Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Programa de Pós-Graduação em Genética, Conservação e Biologia Evolutiva, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Pedro Senna Bittencourt
- Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Valéria Nogueira Machado
- Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Tomas Hrbek
- Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Biology Department, Trinity University, San Antonio, Texas, USA
| | - Izeni Pires Farias
- Departamento de Genética, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
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28
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Anjos MDS, Jardim de Queiroz L, Penido IDS, Bitencourt JDA, Barreto SB, Sarmento‐Soares LM, Batalha‐Filho H, Affonso PRADM. A taxonomically complex catfish group from an underrepresented geographic area: Systematics and species limits in
Hypostomus
Lacépède, 1803 (Siluriformes, Loricariidae) from Eastern South America. J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Luiz Jardim de Queiroz
- Department of Fish Ecology and Evolution Swiss Federal Institute of Aquatic Science and Technology (Eawag) Dübendorf Switzerland
| | - Iago de Souza Penido
- Programa de Pós‐Graduação em Biologia Comparada Universidade Estadual de Maringá Maringá Brazil
| | | | - Silvia Britto Barreto
- National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution (INCT INTREE) Instituto de Biologia Universidade Federal da Bahia Salvador Brazil
| | | | - Henrique Batalha‐Filho
- Instituto de Biologia Universidade Federal da Bahia Salvador Brazil
- National Institute of Science and Technology in Interdisciplinary and Transdisciplinary Studies in Ecology and Evolution (INCT INTREE) Instituto de Biologia Universidade Federal da Bahia Salvador Brazil
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Bhaskar R, Das MK, Sharon EA, Kumar RR, R. G. C. Genetic identification of marine eels (Anguilliformes: Congroidei) through DNA barcoding from Kasimedu fishing harbour. Mitochondrial DNA B Resour 2021; 6:3354-3361. [PMID: 34790868 PMCID: PMC8592592 DOI: 10.1080/23802359.2021.1996291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Along with the mysteries of their body's shape like snakes, marine eels have fascinated biologists for centuries. Information on the molecular taxonomy of marine eels is scarce from the Southeast Indian region and hence, the present study aimed to barcode marine eels collected from Kasimedu fishing harbor, Chennai, Tamil Nadu. A total of 44 specimens were collected and DNA barcoding was done with a COI marker. The evolutionary history was inferred using the BA method. We observed 17 species, 10 genera, 4 families from the suborder Congroidei of which the genus Ariosoma and Conger were found to be predominant. The species of the family Muraenesocidae and Congridae are highly variable. The average Kimura two-parameter (K2P) distances within species, genera, and families were 3.08%, 6.80%, 13.80%, respectively. Maximum genetic distance (0.307) was observed between the species Muraenesox cinereus and Ariosoma sp.1. BA tree topology revealed distinct clusters in concurrence with the taxonomic status of the species. A deeper split was observed in Uroconger lepturus. We sequenced for the first-time barcode of Sauromuraenesox vorax and a new species Ophichthus chennaiensis is the gap-filling in identifying this taxon in the Indian context. We found a correct match between morphological and genetic identification of the species analyzed, depending on the cluster analysis performed (BINs and ASAP). This demonstrates that the COI gene sequence is suitable for phylogenetic analysis and species identification.
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Affiliation(s)
- Ranjana Bhaskar
- Zoological Survey of India, Southern Regional Centre, Chennai, India
| | - Mrinal Kumar Das
- Zoological Survey of India, Marine Biology Regional Centre, Chennai, India
| | - E. Agnita Sharon
- Zoological Survey of India, Southern Regional Centre, Chennai, India
| | | | - Chandika R. G.
- Zoological Survey of India, Southern Regional Centre, Chennai, India
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Luz SCS, Montes MA, Farias RS, Lima RV, Torres RA, Ferreira EJG, Severi W, Coimbra MRM. Reduced genetic diversity and the success of the invasive peacock bass (Cichliformes: Cichlidae). BRAZ J BIOL 2021; 84:e248656. [PMID: 34730686 DOI: 10.1590/1519-6984.248656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 09/10/2021] [Indexed: 11/22/2022] Open
Abstract
Several species of Cichla successfully colonized lakes and reservoirs of Brazil, since the 1960's, causing serious damage to local wildlife. In this study, 135 peacock bass were collected in a reservoir complex in order to identify if they represented a single dominant species or multiple ones, as several Cichla species have been reported in the basin. Specimens were identified by color pattern, morphometric and meristic data, and using mitochondrial markers COI, 16S rDNA and Control Region (CR). Overlapping morphological data and similar coloration patterns prevented their identification using the taxonomic keys to species identification available in the literature. However, Bayesian and maximum likelihood from sequencing data demonstrated the occurrence of a single species, Cichla kelberi. A single haplotype was observed for the 16S and CR, while three were detected for COI, with a dominant haplotype present in 98.5% of the samples. The extreme low diversity of the transplanted C. kelberi evidenced a limited number of founding maternal lineages. The success of this colonization seems to rely mainly on abiotic factors, such as increased water transparency of lentic environments that favor visual predators that along with the absence of predators, have made C. kelberi a successful invader of these reservoirs.
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Affiliation(s)
- S C S Luz
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Pesca e Aquicultura, Recife, PE, Brasil
| | - M A Montes
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Biologia, Recife, PE, Brasil
| | - R S Farias
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Pesca e Aquicultura, Recife, PE, Brasil
| | - R V Lima
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Pesca e Aquicultura, Recife, PE, Brasil
| | - R A Torres
- Universidade Federal de Pernambuco - UFPE, Departamento de Zoologia, Recife, PE, Brasil
| | - E J G Ferreira
- Instituto Nacional de Pesquisas da Amazônia - INPA, Coordenação de Biodiversidade, Manaus, AM, Brasil
| | - W Severi
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Pesca e Aquicultura, Recife, PE, Brasil
| | - M R M Coimbra
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Pesca e Aquicultura, Recife, PE, Brasil
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DNA Barcode is Efficient for Identifying Bat Species. J MAMM EVOL 2021. [DOI: 10.1007/s10914-021-09563-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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McMahan CD, Elías DJ, Li Y, Domínguez-Domínguez O, Rodriguez-Machado S, Morales-Cabrera A, Velásquez-Ramírez D, Piller KR, Chakrabarty P, Matamoros WA. Molecular systematics of the Awaous banana complex (River gobies; Teleostei: Oxudercidae). JOURNAL OF FISH BIOLOGY 2021; 99:970-979. [PMID: 33991111 DOI: 10.1111/jfb.14783] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/07/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
Diadromous fishes can exhibit interesting evolutionary and population-level patterns given their use of freshwater and marine environments as part of their life histories. The River goby genus Awaous are prominent members of riverine ichthyofaunas and occur throughout Atlantic and Pacific slopes of the Americas from the southern United States to Ecuador and Brazil. Here we study the widespread and polymorphic Awaous banana complex to assess phylogeographic patterns and test previous hypotheses that all populations of this species in the Americas belong to the same species. Analysis of sequence data based on the mitochondrial cytochrome oxidase I gene shows multiple clades within the Atlantic and Pacific basins, which correspond to previously described species. Additionally, haplotype analysis demonstrates unique and unconnected networks between these species. Within these clades we document biogeographic patterns that are congruent with results of other co-occurring diadromous species, as well as a novel biogeographic pattern for the region. Our results support the recognition of distinct species of Awaous in the Atlantic (A. banana and A. tajasica) and Pacific (A. transandeanus) basins. These results are concordant with previously established morphological characters permitting the separation of these species.
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Affiliation(s)
| | - Diego J Elías
- LSU Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Yue Li
- LSU Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Omár Domínguez-Domínguez
- Laboratorio de Biología Acuática, Facultad de Biología, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico
| | - Sheila Rodriguez-Machado
- LSU Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Alejandra Morales-Cabrera
- Escuela de Biología, Facultad de Ciencias Químicas y Farmacia, Universidad de San Carlos de Guatemala, Guatemala City, Guatemala
| | - Diana Velásquez-Ramírez
- Escuela de Biología, Facultad de Ciencias Químicas y Farmacia, Universidad de San Carlos de Guatemala, Guatemala City, Guatemala
| | - Kyle R Piller
- Department of Biological Sciences, Southeastern Louisiana University, Hammond, Louisiana, USA
| | - Prosanta Chakrabarty
- LSU Museum of Natural Science, Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA
| | - Wilfredo A Matamoros
- Colección de Ictiología, Instituto de Ciencias Biológicas, Universidad de Ciencias y Artes de Chiapas, Tuxtla Gutiérrez, Mexico
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Ferreira KM, Mirande JM, Quagio‐Grassiotto I, Santana JCO, Baicere‐Silva CM, Menezes NA. Testing the phylogenetic hypotheses of Stevardiinae Gill, 1858 in light of new phenotypic data (Teleostei: Characidae). J ZOOL SYST EVOL RES 2021. [DOI: 10.1111/jzs.12517] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Juan Marcos Mirande
- Fundación Miguel Lillo Unidad Ejecutora Lillo (CONICET‐FML) San Miguel de Tucumán Argentina
| | - Irani Quagio‐Grassiotto
- Depto de Morfologia, Instituto de Biociências Universidade Estadual Paulista Júlio de Mesquita Filho Botucatu Brazil
| | - Júlio C. O. Santana
- Instituto de Biociências Universidade Federal do Mato Grosso do Sul Campo Grande Brazil
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Ribolli J, Zaniboni Filho E, Scaranto BMS, Shibatta OA, Machado CB. Cryptic diversity and diversification processes in three cis-Andean Rhamdia species (Siluriformes: Heptapteridae) revealed by DNA barcoding. Genet Mol Biol 2021; 44:e20200470. [PMID: 34254973 PMCID: PMC8276235 DOI: 10.1590/1678-4685-gmb-2020-0470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 04/07/2021] [Indexed: 12/02/2022] Open
Abstract
The wide distribution of the Neotropical freshwater catfish Rhamdia offers an excellent opportunity to investigate the historical processes responsible for modeling South America’s hydrogeological structure. We used sequences from cis-Andean and Mesoamerican Rhamdia species to reconstruct and estimate divergence times among cis-Andean lineages, correlating the results with known geological events. Species delimitation methods based on distance (DNA barcoding and BIN) and coalescence (GMYC) approaches identified nine well-supported lineages from the cis-Andean region from sequences available in the BOLD dataset. The cis-Andean Rhamdia lineages diversification process began in Eocene and represented the split between cis-Andean and Mesoamerican clades. The cis-Andean clade contains two principal groups: Northwest clade (MOTUs from Amazon, Essequibo, Paraguay, and Itapecuru basins) and Southeast clade (Eastern Brazilian shield basins (Paraná, Uruguay, Iguaçu, and São Francisco) plus eastern coastal basins). The diversification of the cis-Andean Rhamdia lineages results from vicariance and geodispersion events, which played a key role in the current intricate distribution pattern of the Rhamdia lineages. The wide geographical distribution and large size of the specimens make it attractive to cultivate in different countries of the Neotropical region. The lineages delimitation minimizes identification mistakes, unintentional crossings by aquaculture, and reduces natural stocks contamination.
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Affiliation(s)
- Josiane Ribolli
- Universidade Federal de Santa Catarina, Departamento de Aquicultura, Lagoa do Peri, Laboratório de Biologia e Cultivo de Peixes de Água Doce, Florianópolis, SC, Brazil
| | - Evoy Zaniboni Filho
- Universidade Federal de Santa Catarina, Departamento de Aquicultura, Lagoa do Peri, Laboratório de Biologia e Cultivo de Peixes de Água Doce, Florianópolis, SC, Brazil
| | - Bianca Maria Soares Scaranto
- Universidade Federal de Santa Catarina, Departamento de Aquicultura, Lagoa do Peri, Laboratório de Biologia e Cultivo de Peixes de Água Doce, Florianópolis, SC, Brazil
| | - Oscar Akio Shibatta
- Universidade Estadual de Londrina, Departamento de Biologia Animal e Vegetal, Centro de Ciências Biológicas, Londrina, PR, Brazil
| | - Carolina Barros Machado
- Universidade Federal de São Carlos, Departamento de Genética e Evolução, São Carlos, SP, Brazil
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Azevedo FM, Zawadzki CH, Soria TV, Fabrin TMC, Oliveira AVD, Prioli SMAP, Prioli AJ. Integrative taxonomy reveals the historically poorly defined armoured catfish Hypostomus variipictus (Ihering 1911), from the upper rio Paraná basin, Brazil (Siluriformes, Loricariidae). JOURNAL OF FISH BIOLOGY 2021; 99:143-152. [PMID: 33629364 DOI: 10.1111/jfb.14706] [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: 10/19/2020] [Revised: 02/02/2021] [Accepted: 02/23/2021] [Indexed: 06/12/2023]
Abstract
In a recent expedition to the rio Grande basin, a tributary of the rio Paraná in southern Brazil, individuals of the armoured catfish genus Hypostomus with a peculiar and beautiful colour pattern composed of pale vermiculations on the head and four to five horizontal stripes on the flanks were collected. Initially, the specimens were identified as a colour morph of the pale-spotted H. margaritifer. However, when we compared their partial cytochrome C oxidase subunit I (COI) mitochondrial gene to sequences of some typically pale-spotted H. margaritifer, the striped specimens were genetically distinct. Further analysis of the striped individuals revealed that they are the poorly known but valid species Hypostomus variipictus, which was described by Ihering in 1911 from the rio Pardo, a tributary of the rio Grande, upper rio Paraná basin, in São Paulo State, Brazil. Since its descriptions, no robust taxonomic work has been published concerning this species. In this study, the newly sampled population was compared to the original description and to the holotype of H. variipictus, providing the foundation for a complete redescription, proper diagnosis, and first live colour illustration and description of the previously hidden H. variipictus.
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Affiliation(s)
- Filipe Manoel Azevedo
- Programa de Pós-Graduação em Biologia Comparada, Universidade Estadual de Maringá, Paraná, Brazil
| | - Cláudio Henrique Zawadzki
- Departamento de Biologia, Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá, Maringá, Brazil
| | - Thatiana Vanessa Soria
- Programa de Pós-Graduação em Biologia Comparada, Universidade Estadual de Maringá, Paraná, Brazil
| | - Thomaz Mansini Carrenho Fabrin
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Universidade Estadual de Maringá, Maringá, Brazil
| | - Alessandra Valéria De Oliveira
- Departamento de Biologia, Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Universidade Estadual de Maringá, Maringá, Brazil
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Universidade Estadual de Maringá, Maringá, Brazil
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Sônia Maria Alves Pinto Prioli
- Programa de Pós-Graduação em Biologia Comparada, Universidade Estadual de Maringá, Paraná, Brazil
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
| | - Alberto Jose Prioli
- Programa de Pós-Graduação em Biologia Comparada, Universidade Estadual de Maringá, Paraná, Brazil
- Departamento de Biotecnologia, Genética e Biologia Celular, Universidade Estadual de Maringá, Maringá, Brazil
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Kartavtsev YP. Some Examples of the Use of Molecular Markers for Needs of Basic Biology and Modern Society. Animals (Basel) 2021; 11:1473. [PMID: 34065552 PMCID: PMC8160991 DOI: 10.3390/ani11051473] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/13/2021] [Accepted: 05/15/2021] [Indexed: 01/27/2023] Open
Abstract
Application of molecular genetic markers appeared to be very fruitful in achieving many goals, including (i) proving the theoretic basements of general biology and (ii) assessment of worldwide biodiversity. Both are provided in the present meta-analysis and a review as the main signal. One of the basic current challenges in modern biology in the face of new demands in the 21st century is the validation of its paradigms such as the synthetic theory of evolution (STE) and biological species concept (BSC). Another of most valuable goals is the biodiversity assessment for a variety of social needs including free web-based information resources about any living being, renovation of museum collections, nature conservation that recognized as a global project, iBOL, as well as resolving global trading problems such as false labeling of species specimens used as food, drug components, entertainment, etc. The main issues of the review are focused on animals and combine four items. (1) A combination of nDNA and mtDNA markers best suits the identification of hybrids and estimation of genetic introgression. (2) The available facts on nDNA and mtDNA diversity seemingly make introgression among many taxa obvious, although it is evident, that introgression may be quite restricted or asymmetric, thus, leaving at least the "source" taxon (taxa) intact. (3) If we consider sexually reproducing species in marine and terrestrial realms introgressed, as it is still evident in many cases, then we should recognize that the BSC, in view of the complete lack of gene flow among species, is inadequate because many zoological species are not biological ones yet. However, vast modern molecular data have proven that sooner or later they definitely become biological species. (4) An investigation into the fish taxa divergence using the BOLD database shows that most gene trees are basically monophyletic and interspecies reticulations are quite rare.
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Affiliation(s)
- Yuri Phedorovich Kartavtsev
- A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia
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Pereira LHG, Castro JRC, Vargas PMH, Gomez JAM, Oliveira C. The use of an integrative approach to improve accuracy of species identification and detection of new species in studies of stream fish diversity. Genetica 2021; 149:103-116. [PMID: 33877495 DOI: 10.1007/s10709-021-00118-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 04/05/2021] [Indexed: 11/26/2022]
Abstract
In this study, we made an inventory of the stream and headwater ichthyofauna of the left bank of the Itaipu Dam Reservoir, located in the lower part of the Upper Paraná River basin, using an integrative approach of molecular and morphological data. The area is located in the western portion of the Paraná state in Brazil, in an area of about 8,000 km2 highly impacted by deforestation and intensive agriculture. For taxonomic identification of species, we used an identification key combined with the DNA barcoding approach. We found 48 species belonging to six orders, 13 families, and 37 genera. The Siluriformes and Characiformes were the most representative orders (75%) and the Characidae was the most representative family (20.8%). Nine species prevailed in this region, making up to 86% of all specimens collected. The integrative approach proved to be useful by allowing the unambiguous identification of all species, including those cases in which morphological characters were not conclusive for species identification, cases of cryptic species, and species with high morphological plasticity. In addition, the integrative approach highlighted six to 13 new putative species depending on the approach considered. Our study provides a relevant contribution to the knowledge of fish diversity in a poorly studied area of the Paraná River basin. We showed that the use of an integrative approach in inventory studies improves species identification and the discovery of new, cryptic, and overlooked species, being a powerful and necessary tool to quantify biodiversity.
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Affiliation(s)
- Luiz Henrique Garcia Pereira
- Laboratório de Biodiversidade e Ecologia Molecular, Instituto Latino-Americano de Ciências da Vida e da Natureza - ILACVN, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000, Foz do Iguaçu, PR, 85870-650, Brasil.
| | - Jerson Rogelio Chanchay Castro
- Laboratório de Biodiversidade e Ecologia Molecular, Instituto Latino-Americano de Ciências da Vida e da Natureza - ILACVN, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000, Foz do Iguaçu, PR, 85870-650, Brasil
| | - Pilar Mireya Huatatoca Vargas
- Laboratório de Biodiversidade e Ecologia Molecular, Instituto Latino-Americano de Ciências da Vida e da Natureza - ILACVN, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000, Foz do Iguaçu, PR, 85870-650, Brasil
| | - Jose Alejandro Morales Gomez
- Laboratório de Biodiversidade e Ecologia Molecular, Instituto Latino-Americano de Ciências da Vida e da Natureza - ILACVN, Universidade Federal da Integração Latino-Americana - UNILA, Av. Tarquínio Joslin dos Santos, 1000, Foz do Iguaçu, PR, 85870-650, Brasil
| | - Claudio Oliveira
- Departamento de Biologia estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP, Botucatu, SP, Brasil
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38
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Braga GSF, Ferreira DC, Marques DKS, Centofante L, Carvalho FR, Venere PC. Gymnotus paraguensis, a Good Example of Phenotypic Plasticity in the Pantanal Biome, Brazil. Zebrafish 2021; 18:162-173. [PMID: 33819114 DOI: 10.1089/zeb.2020.1908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Gymnotus is the most studied genus of the order Gymnotiformes, but the morphological similarities of the different species make it difficult to identify taxa reliably. The present study is a continuation of the ongoing research into the taxonomic diversity of the stocks of Gymnotus sold as live bait in the Pantanal, Brazil. These studies have been based on cytogenetic analyses, DNA barcoding, and the analysis of coloration patterns. The results of the cytogenetic analysis confirmed the presence of three distinct strains, recognized as Gymnotus paraguensis, G. sylvius, and G. pantanal. However, the results revealed that the molecular operational taxonomic units identified as G. paraguensis actually include a relatively diverse set of fish, separated by considerable genetic distances. As the G. paraguensis specimens also presented considerable variation in coloration patterns, further genetic diversity analyses were conducted on these individuals, to test the hypothesis that more than one species is present in this cytotaxonomic unit. The haplotype network revealed a regional pattern in the distribution of this species. The results indicate that the observed variation in coloration patterns is associated with a high degree of phenotypic plasticity in G. paraguensis. These findings emphasize the importance of using an integrative approach for a more accurate diagnosis of Gymnotus, in particular, the species marketed as live bait for the fisheries of the upper Paraguay River basin in the Brazilian Pantanal.
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Affiliation(s)
- Gisele S F Braga
- Instituto de Biociências, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Daniela C Ferreira
- Instituto de Biociências, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Débora K S Marques
- Centro de Pesquisa Agropecuária do Pantanal, EMBRAPA Pantanal, Corumbá, Brazil
| | - Liano Centofante
- Instituto de Biociências, Universidade Federal de Mato Grosso, Cuiabá, Brazil
| | - Fernando R Carvalho
- Laboratório de Ictiologia, Instituto de Biociências, Setor de Zoologia, Universidade Federal de Mato Grosso do Su, Campo Grande, Brazil
| | - Paulo C Venere
- Instituto de Biociências, Universidade Federal de Mato Grosso, Cuiabá, Brazil
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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]
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40
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Resende SV, Silva IB, Pasa R, Hilsdorf AWS, Kavalco KF. Hidden Evolutionary Units and Its Implications on Conservation in a Vulnerable Species of a Freshwater Fish. Zebrafish 2021; 18:149-161. [PMID: 33625946 DOI: 10.1089/zeb.2020.1916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Brycon is a fish genus in the order Characiformes, distributed from southern Mexico to the La Plata River in Argentina. Several of its species, including Brycon nattereri, are threatened with extinction or considered vulnerable because they are highly sensitive to anthropogenic factors. The decline of these species may be related to the growth of agriculture and mining in the Brazilian Cerrado region, thus their recovery requires management plans. In this study, we use morphological, chromosomal, and genetic analysis to suggest that two distinct evolutionary units exist under the same denomination B. nattereri, indistinguishable by the descriptive morphological characters of the species until the present moment and show that the population of the São Francisco River is more diverse than that of the upper Paraná River basin. These results may help with future management and conservation programs of Brycon species in the Paraná and São Francisco river basins, two major Brazilian hydrographic basins.
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Affiliation(s)
- Snaydia Viegas Resende
- Laboratory of Ecological and Evolutionary Genetics-LaGEEvo, Institute of Biological and Health Sciences, Federal University of Viçosa, Rio Paranaíba, Brazil.,Postgraduate Course of Management and Conservation of Natural and Agricultural Ecosystems, Federal University of Viçosa-Campus Florestal, Florestal, Brazil.,Postgraduate Course of Zoology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Iuri Batista Silva
- Laboratory of Ecological and Evolutionary Genetics-LaGEEvo, Institute of Biological and Health Sciences, Federal University of Viçosa, Rio Paranaíba, Brazil.,Postgraduate Course of Zoology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Rubens Pasa
- Laboratory of Ecological and Evolutionary Genetics-LaGEEvo, Institute of Biological and Health Sciences, Federal University of Viçosa, Rio Paranaíba, Brazil
| | | | - Karine Frehner Kavalco
- Laboratory of Ecological and Evolutionary Genetics-LaGEEvo, Institute of Biological and Health Sciences, Federal University of Viçosa, Rio Paranaíba, Brazil
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41
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Bragança PHN, Van der Zee J, Chakona A, Schmidt RC, Stiassny MLJ. Following the Mangroves: diversification in the banded lampeye Aplocheilichthys spilauchen (Duméril, 1861) (Cyprinodontiformes: Procatopodidae) along the Atlantic coast of Africa. HYDROBIOLOGIA 2021; 848:1433-1453. [PMID: 33424031 PMCID: PMC7778725 DOI: 10.1007/s10750-020-04497-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 11/28/2020] [Accepted: 12/15/2020] [Indexed: 05/14/2023]
Abstract
UNLABELLED Available ecological information, an extensive distributional range, conflicting osteological data, and a proposed early Miocene origin provide the impetus for the present study which investigates genetic structuring, biogeographic, and phylogenetic relationships within the Aplocheilichthys spilauchen lineage. Through the analysis of the mitochondrial gene COI, species delimitation methods (ABGD, GB, GMYC, bPTP) were applied, recognizing 6-7 OTUs with absolute pairwise genetic distances ranging between 8 and 22%. The onset of diversification is estimated to be within the middle Miocene and both dispersal and vicariance-shaped A. spilauchen diversity and distribution, as suggested by time-calibrated and ancestral range reconstruction (S-DIVA) analyses. We report for the first time, a pattern of diversification within a lineage of brackish water fish that is concordant with the historical distribution of coastal mangroves forests, shaped by a series of historical events that likely affected forest cover since the middle Miocene (e.g. major climate shifts and sea-level fluctuations, onset of the modern Congo River outlet, increased volcanism in the Cameroon Volcanic Line). SUPPLEMENTARY INFORMATION The online version of this article (doi:10.1007/s10750-020-04497-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- P. H. N. Bragança
- South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown, 6140 South Africa
| | - J. Van der Zee
- Section of Vertebrates, Ichthyology, Royal Museum for Central Africa, Leuvensesteenweg 13, 3080 Tervuren, Belgium
| | - A. Chakona
- South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown, 6140 South Africa
- Department of Ichthyology and Fisheries Science, Rhodes University, P.O. Box 94, Grahamstown, 6140 South Africa
| | - R. C. Schmidt
- Biology Department, Randolph-Macon College, Ashland, VA 23005 USA
- Division of Fishes, Smithsonian Research Associate, National Museum of Natural History, Washington, DC 20560 USA
| | - M. L. J. Stiassny
- Department of Ichthyology, American Museum of Natural History, Central Park West at 79th Street, New York, NY 10024 USA
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42
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Guimarães KLA, Rosso JJ, Souza MFB, Díaz de Astarloa JM, Rodrigues LRR. Integrative taxonomy reveals disjunct distribution and first record of Hoplias misionera (Characiformes: Erythrinidae) in the Amazon River basin: morphological, DNA barcoding and cytogenetic considerations. NEOTROPICAL ICHTHYOLOGY 2021. [DOI: 10.1590/1982-0224-2020-0110] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract The Hoplias malabaricus group encompasses six valid species and still is believed to harbors cryptic diversity. In this work, an integrative approach including morphological, DNA barcoding, and cytogenetic considerations was conducted to characterize a population of H. malabaricus from the Amazon basin that was recently allocated in the same mitochondrial lineage with H. misionera, a species originally described from La Plata basin. The DNA barcoding analysis revealed that the Amazon population nested together with H. misionera specimens from the La Plata basin (BIN AAB1732) in the same cluster. The intragroup distance (0.5%) was 12 times lower than the nearest neighbor (6%) distance. The morphometric analysis demonstrated slightly variation between Amazon and La Plata populations, being the former composed by larger specimens. Further morphological data supported the molecular evidence of H. misionera inhabiting Amazon basin. The karyotype characterization of H. misionera in the Amazon population showed 2n=40 and karyotypic formulae 20m+20sm, that added to C-banding, Ag-NOR and 18S results are suggestive of the similarity to karyomorph C of H. malabaricus. This work reveals the first record of H. misionera outside of La Plata basin and expands the species distribution for 2500 km northward until the Marajó Island, estuary of Amazonas River.
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Affiliation(s)
- Karen L. A. Guimarães
- Universidade Federal do Oeste do Pará, Brazil; Universidade Federal do Oeste do Pará, Brazil
| | - Juan J. Rosso
- Universidad Nacional de Mar del Plata, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | | | - Juan M. Díaz de Astarloa
- Universidad Nacional de Mar del Plata, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | - Luís R. R. Rodrigues
- Universidade Federal do Oeste do Pará, Brazil; Universidade Federal do Oeste do Pará, Brazil
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Nogueira AF, Oliveira C, Langeani F, Netto-Ferreira AL. Molecular species delimitation of the genera Anodus, Argonectes, Bivibranchia and Micromischodus (Ostariophysi: Characiformes). NEOTROPICAL ICHTHYOLOGY 2021. [DOI: 10.1590/1982-0224-2021-0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
ABSTRACT A good taxonomic assessment of specimens is an essential task to many biological studies and DNA data have provided additional sources of information to assist in the disentanglement of taxonomic problems among living organisms, as has been the case of some taxa of the megadiverse Neotropical ichthyofauna. Here we assessed all valid species in the Neotropical freshwater fish genera Anodus, Argonectes, Bivibranchia and Micromischodus of the family Hemiodontidae to establish molecular species boundaries among them. All species delimitation methods defined exactly only one MOTU for Anodus elongatus, Argonectes longiceps, A. robertsi, Bivibranchia bimaculata, B. notata, B. velox, and Micromischodus sugillatus, resulting in total congruence between nominal species and MOTUs for these seven taxa. The three species having discordant results across analyses: Anodus orinocensis, Bivibranchia fowleri, and Bivibranchia simulata, matched more than one MOTU per species in some methods, meaning that cryptic diversity may exist within these taxa. Overall, this great correspondence among morphological and molecular boundaries for thae species analysed seem to be indicative of a reasonably stable taxonomy within these Hemiodontidae genera.
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Affiliation(s)
- Acácio Freitas Nogueira
- Universidade Federal do Pará, Brazil; Universidade Estadual Paulista, Brazil; Universidade Federal do Rio Grande do Sul, Brazil
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Gunnels T, Creswell M, McFerrin J, Whittall JB. The ITS region provides a reliable DNA barcode for identifying reishi/lingzhi (Ganoderma) from herbal supplements. PLoS One 2020; 15:e0236774. [PMID: 33180770 PMCID: PMC7660467 DOI: 10.1371/journal.pone.0236774] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 10/28/2020] [Indexed: 11/18/2022] Open
Abstract
The dietary supplement industry is rapidly growing yet, a recent study revealed that up to 60% of supplements may have substituted ingredients, some of which can be harmful contaminants or additives. When ingredients cannot be verified morphologically or biochemically, DNA barcoding complemented with a molecular phylogenetic analysis can be a powerful method for species authentication. We employed a molecular phylogenetic analysis for species authentication of the commonly used fungal supplement, reishi (Ganoderma lingzhi), by amplifying and sequencing the nuclear ribosomal internal transcribed spacer regions (ITS) with genus-specific primers. PCR of six powdered samples and one dried sample all sold as G. lucidum representing independent suppliers produced single, strong amplification products in the expected size-range for Ganoderma. Both best-hit BLAST and molecular phylogenetic analyses clearly identified the presence of G. lingzhi DNA in all seven herbal supplements. We detected variation in the ITS sequences among our samples, but all herbal supplement samples fall within a large clade of G. lingzhi ITS sequences. ITS-based phylogenetic analysis is a successful and cost-effective method for DNA-based species authentication that could be used in the herbal supplement industry for this and other fungal and plant species that are otherwise difficult to identify.
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Affiliation(s)
- Tess Gunnels
- Department of Biology, Santa Clara University, Santa Clara, California, United States of America
- Oregon’s Wild Harvest, Redmond, Oregon, United States of America
| | - Matthew Creswell
- Oregon’s Wild Harvest, Redmond, Oregon, United States of America
| | - Janis McFerrin
- Oregon’s Wild Harvest, Redmond, Oregon, United States of America
| | - Justen B. Whittall
- Department of Biology, Santa Clara University, Santa Clara, California, United States of America
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DNA barcoding reveals cryptic diversity in the underestimated genus Triplophysa (Cypriniformes: Cobitidae, Nemacheilinae) from the northeastern Qinghai-Tibet Plateau. BMC Evol Biol 2020; 20:151. [PMID: 33183225 PMCID: PMC7663858 DOI: 10.1186/s12862-020-01718-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Accepted: 11/04/2020] [Indexed: 01/12/2023] Open
Abstract
Background The northeastern part of the Qinghai-Tibet Plateau (QTP) presents a high number of plateau loach species. As one of the three major groups of fishes distributed on the QTP, plateau loach has high ecological value. However, the taxonomy and systematics of these fish are still controversial, and a large number of new species have been reported. The reason for this phenomenon is that the degree of morphological variation is low, the phylogenetic information provided by morphological and anatomical features used for species identification is relatively poor, and many cryptic species are observed. Based on the high-density sampling points from the biodiversity hotspots surveyed, this study aims to evaluate the biodiversity of plateau loach in the northeastern part of the QTP and reveal the hidden diversity by comparing morphological species with molecular operational taxonomic units (MOTUs). Results After careful identification and comparison of the morphology and DNA barcoding of 1630 specimens, 22 species were identified, with 20 considered valid local species and two identified as new species that had not been previously described. Based on the combination of morphological and molecular methods, a total of 24 native species were found, two of which were cryptic species: Triplophysa robusta sp1 and Triplophysa minxianensis sp1. Fourteen of the 24 species form clusters of barcodes that allow them to be reliably identified. The remaining cases involved 10 closely related species, including rapidly differentiated species and species that seemed to have experienced incomplete lineage sorting or showed introgressions. Conclusions The results highlight the need to combine traditional taxonomies with molecular methods to correctly identify species, especially closely related species, such as the plateau loach. This study provides a basis for protecting the biodiversity of plateau loach.
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Shivambu TC, Shivambu N, Lyle R, Jacobs A, Kumschick S, Foord SH, Robertson MP. Tarantulas (Araneae: Theraphosidae) in the pet trade in South Africa. AFRICAN ZOOLOGY 2020. [DOI: 10.1080/15627020.2020.1823879] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Tinyiko C Shivambu
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
- Centre for Invasion Biology, Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| | - Ndivhuwo Shivambu
- Centre for Invasion Biology, School of Life Sciences, University of KwaZulu-Natal, Pietermaritzburg, South Africa
- Centre for Invasion Biology, Zoology and Entomology, University of Pretoria, Pretoria, South Africa
| | - Robin Lyle
- Biosystematics Division, Agriculture Research Council-Plant Protection Health and Protection, Pretoria, South Africa
| | - Adriaana Jacobs
- Biosystematics Division, Agriculture Research Council-Plant Protection Health and Protection, Pretoria, South Africa
| | - Sabrina Kumschick
- Centre for Invasion Biology, Department of Botany and Zoology, Stellenbosch University, Stellenbosch, South Africa
- South African National Biodiversity Institute, Kirstenbosch Research Centre, Cape Town, South Africa
| | - Stefan H Foord
- Department of Zoology and Centre for Invasion Biology, University of Venda, Thohoyandou, South Africa
| | - Mark P Robertson
- Centre for Invasion Biology, Zoology and Entomology, University of Pretoria, Pretoria, South Africa
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Bonani Mateussi NT, Melo BF, Oliveira C. Molecular delimitation and taxonomic revision of the wimple piranha Catoprion (Characiformes: Serrasalmidae) with the description of a new species. JOURNAL OF FISH BIOLOGY 2020; 97:668-685. [PMID: 32501542 DOI: 10.1111/jfb.14417] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
A taxonomic revision of wimple piranhas of the genus Catoprion is performed in combination with a molecular analysis using mtDNA. Molecular phylogenetic analyses of 49 specimens using genetic distances, conventional likelihood and four delimitation methods yielded two distinct lineages of Catoprion, with the morphological analyses of 198 specimens of Catoprion corroborating the molecular results. We provide a redescription of Catoprion mento, from the Paraguay, Orinoco, and tributaries of western Amazon basin, keeping Mylesinus macropterus as a junior synonym of C. mento, and the description of Catoprion absconditus n. sp., from the Amazon and Essequibo basins. C. absconditus n. sp. differs from C. mento by the presence of 86-94 perforated scales in the lateral line (vs. 65-86 scales) and the presence of 35-40 circumpeduncular scales (vs. 29-34 scales). The distribution of C. mento follows the Amazonas-Paraguay-Orinoco lowlands, whereas C. absconditus follows the eastern Amazon biogeographic pattern.
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Affiliation(s)
- Nadayca T Bonani Mateussi
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Bruno F Melo
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
| | - Claudio Oliveira
- Departamento de Biologia Estrutural e Funcional, Instituto de Biociências, Universidade Estadual Paulista, Botucatu, São Paulo, Brazil
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Hidden diversity in Prochilodus nigricans: A new genetic lineage within the Tapajós River basin. PLoS One 2020; 15:e0237916. [PMID: 32842138 PMCID: PMC7447553 DOI: 10.1371/journal.pone.0237916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 08/06/2020] [Indexed: 11/23/2022] Open
Abstract
Highly spread through the Amazon River basin, Prochilodus nigricans have had its taxonomic validity recently questioned, when genetic differences between Western and Eastern Amazon populations from the Brazilian shield were detected. This area has been seeing as a region of high ichthyofaunal diversity and endemism, in which the hybrid origin of the Tapajós River basin has been raised. In this paper, we report a new molecular lineage within P. nigricans of Tapajós River, highlighting this region still hides taxonomically significant diversity. Haplotype networks were reconstructed using the mitochondrial COI and ATP6/8 markers, which were also used to calculate genetic distances among clusters. We additionally conducted a delimiting species approach by employing a Generalized Mixed Yule-Coalescent model (GMYC) with COI sequences produced here, and previous ones published for individuals sampled across the Amazon River basin. In addition to the genetic differentiation within P. nigricans, our findings favor the hypothesis of hybrid origin of the Tapajós River basin and reaffirm the importance of studies aiming to investigate hidden diversity to address taxonomic and biogeographic issues, that certainly benefit better biodiversity conservation actions.
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Shape diversity of the fish genus Astyanax Baird & Girard, 1854 (Teleostei, Characidae) in adjacent basins. Biologia (Bratisl) 2020. [DOI: 10.2478/s11756-020-00544-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Lima MCCD, Lima SC, Savada CS, Suzuki KM, Orsi ML, Almeida FSD. Use of DNA barcode in the identification of fish eggs in tributaries of the Paranapanema River basin. Genet Mol Biol 2020; 43:e20190352. [PMID: 32584918 PMCID: PMC7315765 DOI: 10.1590/1678-4685-gmb-2019-0352] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 05/08/2020] [Indexed: 12/02/2022] Open
Abstract
Fish eggs are often excluded from identification analysis since at this stage of development there are few morphological characters. The correct identification of eggs can provide important information about spawning areas of species. The current work aimed to identify fish eggs in the Tibagi and Cinzas Rivers using the DNA barcode to obtain information on richness and diversity, adding to the existing data in the area. Of the 928 sequences analyzed using the BOLD Systems database, 99.78% were able to be identified at a specific level, demonstrating a high success rate for egg identification. The samples resulted in 25 species, 11 families, and 2 orders. Of the 25 species found, more than half (60%) present reproductive migration behavior, indicating that the tributaries of the Capivara reservoir are being used as a migratory route by these species. Eggs of rare and endangered species were found, indicating these tributaries as spawning grounds for these species. The results demonstrate the importance of identifying fish eggs in reservoir-influenced environments to recognize breeding areas of native and endangered species, as well as the importance of the Tibagi and Cinzas Rivers for the maintenance of native fish species in the Paranapanema River.
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Affiliation(s)
- Moema Cristina Costa de Lima
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Genética e Ecologia Animal, Londrina, PR, Brazil
| | - Same Costa Lima
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Genética e Ecologia Animal, Londrina, PR, Brazil
| | - Camila Satie Savada
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Genética e Ecologia Animal, Londrina, PR, Brazil
| | - Karen Mayumi Suzuki
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Genética e Ecologia Animal, Londrina, PR, Brazil
| | - Mário Luís Orsi
- Universidade Estadual de Londrina, Departamento de Biologia Animal e Vegetal, Laboratório de Ecologia de Peixes e Invasões Biológicas, Londrina, PR, Brazil
| | - Fernanda Simões de Almeida
- Universidade Estadual de Londrina, Departamento de Biologia Geral, Laboratório de Genética e Ecologia Animal, Londrina, PR, Brazil
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