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Morais-Silva JP, Scorsim B, Gonçalves G, Frota A, da Graça WJ, de Oliveira AV. Molecular Markers Reveal a New and Possibly Threatened Species of Cnesterodon (Poeciliidae, Cnesterodontini) from the Upper Paraná River Basin, Brazil. Zebrafish 2023; 20:37-45. [PMID: 36695733 PMCID: PMC9968864 DOI: 10.1089/zeb.2022.0052] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Cnesterodon comprises 10 valid species occurring in the major river basins of South America. Recent ichthyofaunistic studies in the Ivaí River basin, upper Paraná River system, suggested the existence of a possible new species, which was identified as Cnesterodon sp. based on morphological characters. Currently, the use of molecular tools has proved to be fundamental in aiding phylogenetics and cataloging biodiversity; therefore, in this study, we molecularly characterize a possible new species of Cnesterodon from the Ivaí River basin encoding the mitochondrial genes Cytochrome c Oxidase, subunit I (COI), and NADH dehydrogenase subunit 2 (ND2). The genetic differences found showed that this species really differs from the other Cnesterodon species, indicating that it is a distinct species, which is possibly already in serious danger of extinction since its habitat often suffers from human exploitation and its distribution is restricted to only two sites in the upper Ivaí River basin, but it has disappeared in one of them.
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Affiliation(s)
- João Paulo Morais-Silva
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Bárbara Scorsim
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Geovana Gonçalves
- Curso de Graduação em Ciências Biológicas, Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Augusto Frota
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
| | - Weferson Júnio da Graça
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
- Departamento de Biologia and Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM). Maringá, Brazil
- Departamento de Biologia, Programa de Pós-Graduação em Biologia Comparada, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM). Maringá, Brazil
| | - Alessandra Valéria de Oliveira
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Departamento de Biologia, Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM), Maringá, Brazil
- Departamento de Biotecnologia, Genética e Biologia Celular and Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupélia), Centro de Ciências Biológicas, Universidade Estadual de Maringá (UEM). Maringá, Brazil
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Santos CMD, Santos D, Gois JP, Hammoud M. BuM 2.0: Software for online generation of matrices for Brooks Parsimony Analysis. Zootaxa 2021; 5005:241-245. [PMID: 34811265 DOI: 10.11646/zootaxa.5005.2.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Indexed: 11/04/2022]
Abstract
Brooks Parsimony Analysis is a cladistic biogeographic method that aims to extract biogeographic information from phylogenetic trees, depicting from a group of cladograms a general pattern of relationships among the areas the taxa inhabit. We present here BuM 2.0, an online framework to automatically create matrices for Brooks Parsimony Analysis (BPA) using Baum Ragans algorithm for Matrix Representation with Parsimony.
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Affiliation(s)
- Charles Morphy D Santos
- Centro de Cincias Naturais e Humanas, Laboratrio de Sistemtica e Diversidade, Universidade Federal do ABC, Av. dos Estados 5001, Bairro Bangu, CEP 09210-580, Santo Andr, SP, Brazil..
| | - Daubian Santos
- Centro de Cincias Naturais e Humanas, Laboratrio de Sistemtica e Diversidade, Universidade Federal do ABC, Av. dos Estados 5001, Bairro Bangu, CEP 09210-580, Santo Andr, SP, Brazil..
| | - Joo Paulo Gois
- Centro de Matemtica, Computao e Cognio, Universidade Federal do ABC, Av. dos Estados 5001, Bairro Bangu, CEP 09210-580, Santo Andr, SP, Brazil..
| | - Muhsen Hammoud
- Centro de Matemtica, Computao e Cognio, Universidade Federal do ABC, Av. dos Estados 5001, Bairro Bangu, CEP 09210-580, Santo Andr, SP, Brazil..
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Briñoccoli YF, Jardim de Queiroz L, Bogan S, Paracampo A, Posadas PE, Somoza GM, Montoya‐Burgos JI, Cardoso YP. Processes that drive the population structuring of Jenynsia lineata (Cyprinidontiformes, Anablepidae) in the La Plata Basin. Ecol Evol 2021; 11:6119-6132. [PMID: 34141207 PMCID: PMC8207347 DOI: 10.1002/ece3.7427] [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: 09/24/2020] [Revised: 02/12/2021] [Accepted: 02/19/2021] [Indexed: 11/09/2022] Open
Abstract
The distribution of genetic diversity across a species distribution range is rarely homogeneous, as the genetic structure among populations is related to the degree of isolation among them, such as isolation by distance, isolation by barrier, and isolation by environment. Jenynsia lineata is a small viviparous fish that inhabits a wide range of habitats in South America. To decipher the isolation processes that drive population structuring in J. lineata, we analyzed 221 sequences of the mitochondrial cytochrome c oxidase I gene (COI), from 19 localities. Then, we examined the influence of the three most common types of isolation in order to explain the genetic variation found in this species.Our results revealed a marked structuration, with three groups: (a) La Plata/Desaguadero Rivers (sampling sites across Argentina, Uruguay, and Southern Brazil), (b) Central Argentina, and (c) Northern Argentina. A distance-based redundancy analysis, including the explanatory variables geographical distances, altitude, latitude, and basin, was able to explain up to 65% of the genetic structure. A variance partitioning analysis showed that the two most important variables underlying the structuration in J. lineata were altitude (isolation by environment) and type of basin (isolation by barrier).Our results show that in this species, the processes of population diversification are complex and are not limited to a single mechanism. The processes that play a prominent role in this study could explain the high rate of diversity that characterizes freshwater fish species. And these processes in turn are the basis for possible speciation events.
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Affiliation(s)
- Yanina F. Briñoccoli
- Laboratorio de Ictiofisiología y AcuiculturaInstituto Tecnológico Chascomús (CONICET‐UNSAM)ChascomúsArgentina
| | | | - Sergio Bogan
- Fundación de Historia Natural “Félix de Azara”Departamento de Ciencias Naturales y AntropologíaUniversidad MaimónidesCiudad Autónoma de Buenos AiresArgentina
| | - Ariel Paracampo
- Instituto de Limnología Dr. Raúl A. RingueletCONICET‐CCT La Plata‐UNLPBuenos AiresArgentina
| | - Paula E. Posadas
- CONICETLaboratorio de Sistemática y Biología Evolutiva (LASBE)Facultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataBuenos AiresArgentina
| | - Gustavo M. Somoza
- Laboratorio de Ictiofisiología y AcuiculturaInstituto Tecnológico Chascomús (CONICET‐UNSAM)ChascomúsArgentina
| | | | - Yamila P. Cardoso
- CONICETLaboratorio de Sistemática y Biología Evolutiva (LASBE)Facultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataBuenos AiresArgentina
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