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Santos da Silva K, Glugoski L, Vicari MR, de Souza ACP, Akama A, Pieczarka JC, Nagamachi CY. Mechanisms of Karyotypic Diversification in Ancistrus (Siluriformes, Loricariidae): Inferences from Repetitive Sequence Analysis. Int J Mol Sci 2023; 24:14159. [PMID: 37762461 PMCID: PMC10532334 DOI: 10.3390/ijms241814159] [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: 07/17/2023] [Revised: 08/14/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Ancistrus is a highly diverse neotropical fish genus that exhibits extensive chromosomal variability, encompassing karyotypic morphology, diploid chromosome number (2n = 34-54), and the evolution of various types of sex chromosome systems. Robertsonian rearrangements related to unstable chromosomal sites are here described. Here, the karyotypes of two Ancistrus species were comparatively analyzed using classical cytogenetic techniques, in addition to isolation, cloning, sequencing, molecular characterization, and fluorescence in situ hybridization of repetitive sequences (i.e., 18S and 5S rDNA; U1, U2, and U5 snDNA; and telomere sequences). The species analyzed here have different karyotypes: Ancistrus sp. 1 (2n = 38, XX/XY) and Ancistrus cirrhosus (2n = 34, no heteromorphic sex chromosomes). Comparative mapping showed different organizations for the analyzed repetitive sequences: 18S and U1 sequences occurred in a single site in all populations of the analyzed species, while 5S and U2 sequences could occur in single or multiple sites. A sequencing analysis confirmed the identities of the U1, U2, and U5 snDNA sequences. Additionally, a syntenic condition for U2-U5 snDNA was found in Ancistrus. In a comparative analysis, the sequences of rDNA and U snDNA showed inter- and intraspecific chromosomal diversification. The occurrence of Robertsonian rearrangements and other dispersal mechanisms of repetitive sequences are discussed.
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Affiliation(s)
- Kevin Santos da Silva
- Cytogenetics Laboratory, Center for Advanced Biodiversity Studies Science Institute Biological, Federal University of Pará, Belém 66075-110, Brazil; (K.S.d.S.); (J.C.P.)
| | - Larissa Glugoski
- Fish Cytogenetics Laboratory, Federal University of São Carlos, São Carlos 13565-905, Brazil;
- Laboratory of Chromosome Biology: Structure and Function Department of Structural Biology, Molecular and Genetic, University of Ponta Grossa State, Ponta Grossa 84010-330, Brazil;
| | - Marcelo Ricardo Vicari
- Laboratory of Chromosome Biology: Structure and Function Department of Structural Biology, Molecular and Genetic, University of Ponta Grossa State, Ponta Grossa 84010-330, Brazil;
| | | | - Alberto Akama
- Department of Zoology, Paraense Emilio Goeldi Museum, Belém 66040-170, Brazil;
| | - Julio Cesar Pieczarka
- Cytogenetics Laboratory, Center for Advanced Biodiversity Studies Science Institute Biological, Federal University of Pará, Belém 66075-110, Brazil; (K.S.d.S.); (J.C.P.)
| | - Cleusa Yoshiko Nagamachi
- Cytogenetics Laboratory, Center for Advanced Biodiversity Studies Science Institute Biological, Federal University of Pará, Belém 66075-110, Brazil; (K.S.d.S.); (J.C.P.)
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2
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Contributions to Trachelyopterus (Siluriformes: Auchenipteridae) species diagnosis by cytotaxonomic autapomorphies: from U2 snRNA chromosome polymorphism to rDNA and histone gene synteny. ORG DIVERS EVOL 2022. [DOI: 10.1007/s13127-022-00560-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3
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Classical and molecular cytogenetics of Markiana nigripinnis (Pisces - Characiformes) from brazilian Pantanal: a comparative analysis with cytotaxonomic contributions. Biologia (Bratisl) 2022. [DOI: 10.1007/s11756-022-01091-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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4
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Guimarães KLA, Rosso JJ, González-Castro M, Souza MFB, Díaz de Astarloa JM, Rodrigues LRR. A new species of Hoplias malabaricus species complex (Characiformes: Erythrinidae) from the Crepori River, Amazon basin, Brazil. JOURNAL OF FISH BIOLOGY 2022; 100:425-443. [PMID: 34792799 DOI: 10.1111/jfb.14953] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 10/27/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
A new species belonging to the Hoplias malabaricus complex from the Amazon basin, Brazil, is described. The new species is characterized by 15-16 predorsal scales, 37-39 lateral-line scales, 5 scales from dorsal fin to lateral line, 38-39 vertebrae, iii-iv, 7-8 anal-fin rays, ii-iv, 12-15 caudal-fin rays, last vertical series of scales on the base of caudal-fin rays forming a straight line, 6-7 dark bands in anal fin and no distinctive dark bands or blotches on flanks. The new species is also distinguished from other congeners of the H. malabaricus species-group by means of landmark-based morphometrics and DNA Barcoding (Cytochrome c Oxidase I gene). An identification key to species of the H. malabaricus species complex is provided.
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Affiliation(s)
- Karen L A Guimarães
- Programa de Pós-graduação em Biodiversidade e Biotecnologia (Rede BIONORTE - Polo Pará), Universidade Federal do Oeste do Pará, Instituto de Saúde Coletiva, Santarém, Brazil
- Laboratório de Genética e Biodiversidade, Universidade Federal do Oeste do Pará, Instituto de Ciências da Educação, Santarém, Brazil
| | - Juan J Rosso
- Grupo de Biotaxonomía Morfológica y Molecular de Peces, Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Mariano González-Castro
- Grupo de Biotaxonomía Morfológica y Molecular de Peces, Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Mendelsohn F B Souza
- Laboratório de Genética e Biodiversidade, Universidade Federal do Oeste do Pará, Instituto de Ciências da Educação, Santarém, Brazil
| | - Juan M Díaz de Astarloa
- Grupo de Biotaxonomía Morfológica y Molecular de Peces, Instituto de Investigaciones Marinas y Costeras, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Mar del Plata, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Luís R R Rodrigues
- Programa de Pós-graduação em Biodiversidade e Biotecnologia (Rede BIONORTE - Polo Pará), Universidade Federal do Oeste do Pará, Instituto de Saúde Coletiva, Santarém, Brazil
- Laboratório de Genética e Biodiversidade, Universidade Federal do Oeste do Pará, Instituto de Ciências da Educação, Santarém, 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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Gazoni T, Dorigon NS, da Silva MJ, Cholak LR, Haddad CFB, Parise-Maltempi PP. Chromosome Mapping of U2 snDNA in Species of Leptodactylus (Anura, Leptodactylidae). Cytogenet Genome Res 2021; 161:63-69. [PMID: 33823507 DOI: 10.1159/000515047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 02/05/2021] [Indexed: 11/19/2022] Open
Abstract
Small nuclear RNA (snRNA) is a class of molecules involved in the processing of pre-mRNA and in regulatory cell processes. snRNAs are always associated with a set of specific proteins. The complexes are referred to as small nuclear ribonucleoproteins, and spliceosome U RNAs are their most common snRNA components. The repetitive sequences of U snDNAs have been cytogenetically mapped in several species of Arthropoda, fishes, and mammals; however, their distribution remains unknown in amphibians. Here, we show results of FISH mapping of U2 snDNA repetitive sequences in species of the amphibian genus Leptodactylus to reveal the distribution patterns of this sequence in their karyotypes. The probe hybridized in the metacentric chromosome pair 6 in Leptodactylus fuscus, L. gracilis, L. latrans, L. chaquensis, L. petersii, L. podicipinus, and L. brevipes. A different pattern was observed in L. labyrinthicus with hybridization signals in 4 chromosome pairs. The same localization of U2 gene sequences in most of the species analyzed suggests a relatively conserved pattern and a similarity of the chromosome 6 among these species of Leptodactylus.
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Affiliation(s)
- Thiago Gazoni
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, Universidade Estadual Paulista - UNESP, Rio Claro, Brazil
| | - Nathália S Dorigon
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, Universidade Estadual Paulista - UNESP, Rio Claro, Brazil
| | - Marcelo J da Silva
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, Universidade Estadual Paulista - UNESP, Rio Claro, Brazil
| | - Luiza R Cholak
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, Universidade Estadual Paulista - UNESP, Rio Claro, Brazil
| | - Célio F B Haddad
- Departamento de Biodiversidade e Centro de Aquicultura, Instituto de Biociências, Universidade Estadual Paulista - UNESP, Rio Claro, Brazil
| | - Patricia P Parise-Maltempi
- Departamento de Biologia Geral e Aplicada, Instituto de Biociências, Universidade Estadual Paulista - UNESP, Rio Claro, Brazil
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Araya-Jaime C, Palma-Rojas C, Brand EV, Silva A. Cytogenetic characterization, rDNA mapping and quantification of the nuclear DNA content in Seriolella violacea Guichenot, 1848 (Perciformes, Centrolophidae). COMPARATIVE CYTOGENETICS 2020; 14:319-328. [PMID: 32754305 PMCID: PMC7381430 DOI: 10.3897/compcytogen.v14i3.53087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/05/2020] [Indexed: 05/27/2023]
Abstract
Seriolella violacea Guichenot, 1848 is an important component of the fish fauna of the Chilean coast and is of great economic interest. Cytogenetic information for the family Centrolophidae is lacking and the genomic size of five of the twenty-eight species described for this family are is barely known. This study aimed to describe for the first time the karyotype structure via classical and molecular cytogenetics analysis with the goal of identifying the constitutive heterochromatin distribution, chromosome organization of rDNA sequences and quantification of nuclear DNA content. The karyotype of S. violacea is composed of 48 chromosomes, with the presence of conspicuous blocks of heterochromatin on chromosomal pairs one and two. FISH assay with a 5S rDNA probe, revealed the presence of fluorescent markings on the heterochromatic block of pair one. The 18S rDNA sites are located exclusively on pair two, characterizing this pair as the carrier of the NOR. Finally, the genomic size of S. violacea was estimated at 0.59 pg of DNA as C-value. This work represents the first effort to document the karyotype structure and physical organization of the rDNA sequences in the Seriolella genome, contributing with new information to improve our understanding of chromosomal evolution and genomic organization in marine perciforms.
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Affiliation(s)
- Cristian Araya-Jaime
- Instituto de Investigación Multidisciplinar en Ciencia y Tecnología, Universidad de La Serena, Casilla 554, La Serena, ChileUniversidad de La SerenaLa SerenaChile
- Laboratorio de Genética y Citogenética Vegetal, Departamento de Biología, Universidad de La Serena. La Serena, ChileUniversidad Católica del Norte Sede CoquimboCoquimboChile
| | - Claudio Palma-Rojas
- Laboratorio de Genética y Citogenética Vegetal, Departamento de Biología, Universidad de La Serena. La Serena, ChileUniversidad Católica del Norte Sede CoquimboCoquimboChile
| | - Elisabeth Von Brand
- Departamento de Biología Marina Facultad de Ciencias del Mar, Universidad Católica del Norte Sede Coquimbo, Casilla 117, Coquimbo, ChileUniversidad de La SerenaLa SerenaChile
| | - Alfonso Silva
- Laboratorio Cultivo de Peces, Facultad de Ciencias del Mar, Universidad Católica del Norte Sede Coquimbo, Casilla 117, Coquimbo, ChileUniversidad Católica del Norte Sede CoquimboCoquimboChile
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8
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Sember A, Pelikánová Š, de Bello Cioffi M, Šlechtová V, Hatanaka T, Do Doan H, Knytl M, Ráb P. Taxonomic Diversity Not Associated with Gross Karyotype Differentiation: The Case of Bighead Carps, Genus Hypophthalmichthys (Teleostei, Cypriniformes, Xenocyprididae). Genes (Basel) 2020; 11:E479. [PMID: 32354012 PMCID: PMC7291238 DOI: 10.3390/genes11050479] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/31/2020] [Accepted: 04/24/2020] [Indexed: 11/30/2022] Open
Abstract
The bighead carps of the genus Hypophthalmichthys (H. molitrix and H. nobilis) are important aquaculture species. They were subjected to extensive multidisciplinary research, but with cytogenetics confined to conventional protocols only. Here, we employed Giemsa-/C-/CMA3- stainings and chromosomal mapping of multigene families and telomeric repeats. Both species shared (i) a diploid chromosome number 2n = 48 and the karyotype structure, (ii) low amount of constitutive heterochromatin, (iii) the absence of interstitial telomeric sites (ITSs), (iv) a single pair of 5S rDNA loci adjacent to one major rDNA cluster, and (v) a single pair of co-localized U1/U2 snDNA tandem repeats. Both species, on the other hand, differed in (i) the presence/absence of remarkable interstitial block of constitutive heterochromatin on the largest acrocentric pair 11 and (ii) the number of major (CMA3-positive) rDNA sites. Additionally, we applied here, for the first time, the conventional cytogenetics in H. harmandi, a species considered extinct in the wild and/or extensively cross-hybridized with H. molitrix. Its 2n and karyotype description match those found in the previous two species, while silver staining showed differences in distribution of major rDNA. The bighead carps thus represent another case of taxonomic diversity not associated with gross karyotype differentiation, where 2n and karyotype structure cannot help in distinguishing between genomes of closely related species. On the other hand, we demonstrated that two cytogenetic characters (distribution of constitutive heterochromatin and major rDNA) may be useful for diagnosis of pure species. The universality of these markers must be further verified by analyzing other pure populations of bighead carps.
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Affiliation(s)
- Alexandr Sember
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburská 89, 277-21 Liběchov, Czech Republic
| | - Šárka Pelikánová
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburská 89, 277-21 Liběchov, Czech Republic
| | - Marcelo de Bello Cioffi
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, Rod. Washington Luiz km 235 cep, São Carlos 13565-905, Brazil
| | - Vendula Šlechtová
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburská 89, 277-21 Liběchov, Czech Republic
| | - Terumi Hatanaka
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, Rod. Washington Luiz km 235 cep, São Carlos 13565-905, Brazil
| | - Hiep Do Doan
- Research Institute of Aquaculture No. 1, Dinh Bang, Tu Son, Bac Ninh 16000, Vietnam
| | - Martin Knytl
- Department of Cell Biology, Faculty of Science, Charles University, Viničná 7, 2-128-43 Prague, Czech Republic
| | - Petr Ráb
- Laboratory of Fish Genetics, Institute of Animal Physiology and Genetics, Czech Academy of Sciences, Rumburská 89, 277-21 Liběchov, Czech Republic
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Ríos N, Casanova A, Hermida M, Pardo BG, Martínez P, Bouza C, García G. Population Genomics in Rhamdia quelen (Heptapteridae, Siluriformes) Reveals Deep Divergence and Adaptation in the Neotropical Region. Genes (Basel) 2020; 11:genes11010109. [PMID: 31963477 PMCID: PMC7017130 DOI: 10.3390/genes11010109] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/10/2020] [Accepted: 01/14/2020] [Indexed: 12/16/2022] Open
Abstract
Rhamdia quelen, a Neotropical fish with hybridization between highly divergent mitochondrial DNA (mtDNA) lineages, represents an interesting evolutionary model. Previous studies suggested that there might be demographic differences between coastal lagoons and riverine environments, as well as divergent populations that could be reproductively isolated. Here, we investigated the genetic diversity pattern of this taxon in the Southern Neotropical Basin system that includes the La Plata Basin, Patos-Merin lagoon basin and the coastal lagoons draining to the SW Atlantic Ocean, through a population genomics approach using 2b-RAD-sequencing-derived single nucleotide polymorphisms (SNPs). The genomic scan identified selection footprints associated with divergence and suggested local adaptation environmental drivers. Two major genomic clusters latitudinally distributed in the Northern and Southern basins were identified, along with consistent signatures of divergent selection between them. Population structure based on the whole set of loci and on the presumptive neutral vs. adaptive loci showed deep genomic divergence between the two major clusters. Annotation of the most consistent SNPs under divergent selection revealed some interesting candidate genes for further functional studies. Moreover, signals of adaptation to a coastal lagoon environment mediated by purifying selection were found. These new insights provide a better understanding of the complex evolutionary history of R. quelen in the southernmost basin of the Neotropical region.
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Affiliation(s)
- Néstor Ríos
- Sección Genética Evolutiva, Facultad de Ciencias, UdelaR, Iguá 4225, Montevideo 11400, Uruguay;
- Correspondence: ; Tel.: +598-25258618 (ext. 140)
| | - Adrián Casanova
- Departamento de Zoología, Genética y Antropología Física, Facultad de Veterinaria, Campus de Lugo, Universidade de Santiago de Compostela, Avenida Carballo Calero s/n, E-27002 Lugo, Spain; (A.C.); (M.H.); (B.G.P.); (P.M.); (C.B.)
| | - Miguel Hermida
- Departamento de Zoología, Genética y Antropología Física, Facultad de Veterinaria, Campus de Lugo, Universidade de Santiago de Compostela, Avenida Carballo Calero s/n, E-27002 Lugo, Spain; (A.C.); (M.H.); (B.G.P.); (P.M.); (C.B.)
| | - Belén G. Pardo
- Departamento de Zoología, Genética y Antropología Física, Facultad de Veterinaria, Campus de Lugo, Universidade de Santiago de Compostela, Avenida Carballo Calero s/n, E-27002 Lugo, Spain; (A.C.); (M.H.); (B.G.P.); (P.M.); (C.B.)
- Instituto de Acuicultura, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - Paulino Martínez
- Departamento de Zoología, Genética y Antropología Física, Facultad de Veterinaria, Campus de Lugo, Universidade de Santiago de Compostela, Avenida Carballo Calero s/n, E-27002 Lugo, Spain; (A.C.); (M.H.); (B.G.P.); (P.M.); (C.B.)
- Instituto de Acuicultura, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - Carmen Bouza
- Departamento de Zoología, Genética y Antropología Física, Facultad de Veterinaria, Campus de Lugo, Universidade de Santiago de Compostela, Avenida Carballo Calero s/n, E-27002 Lugo, Spain; (A.C.); (M.H.); (B.G.P.); (P.M.); (C.B.)
- Instituto de Acuicultura, Universidade de Santiago de Compostela, Campus Vida s/n, E-15782 Santiago de Compostela, Spain
| | - Graciela García
- Sección Genética Evolutiva, Facultad de Ciencias, UdelaR, Iguá 4225, Montevideo 11400, Uruguay;
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