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Moulistanos A, Nikolaou T, Sismanoglou S, Gkagkavouzis K, Karaiskou N, Antonopoulou E, Triantafyllidis A, Papakostas S. Investigating the role of genetic variation in vgll3 and six6 in the domestication of gilthead seabream ( Sparus aurata Linnaeus) and European seabass ( Dicentrarchus labrax Linnaeus). Ecol Evol 2023; 13:e10727. [PMID: 38020694 PMCID: PMC10654472 DOI: 10.1002/ece3.10727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 10/27/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Gene function conservation is crucial in molecular ecology, especially for key traits like growth and maturation in teleost fish. The vgll3 and six6 genes are known to influence age-at-maturity in Atlantic salmon, but their impact on other fish species is poorly understood. Here, we investigated the association of vgll3 and six6 in the domestication of gilthead seabream and European seabass, both undergoing selective breeding for growth-related traits in the Mediterranean. We analysed two different sets of samples using two different genotyping approaches. The first dataset comprised farmed and wild populations from Greece, genotyped for SNPs within the two genes ('gene-level genotyping'). The second dataset examined 300-600 k SNPs located in the chromosomes of the two genes, derived from a meta-analysis of a Pool-Seq experiment involving farmed and wild populations distributed widely across the Mediterranean ('chromosome-level genotyping'). The gene-level analysis revealed a statistically significant allele frequency differences between farmed and wild populations on both genes in each species. This finding was partially supported by the chromosome-level analysis, identifying highly differentiated regions may be involved in the domestication process at varying distances from the candidate genes. Noteworthy genomic features were found, such as a CpG island in gilthead seabream and novel candidate genes in European seabass, warranting further investigation. These findings support a putative role of vgll3 and six6 in the maturation and growth of gilthead seabream and European seabass, emphasizing the need for further research on their conserved function.
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Affiliation(s)
- Aristotelis Moulistanos
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of ScienceAristotle University of ThessalonikiThessalonikiGreece
- Genomics and Epigenomics Translational Research (GENeTres)Center for Interdisciplinary Research and Innovation (CIRI‐AUTH), Balkan CenterThessalonikiGreece
| | - Theopisti Nikolaou
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of ScienceAristotle University of ThessalonikiThessalonikiGreece
| | - Smaragda Sismanoglou
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of ScienceAristotle University of ThessalonikiThessalonikiGreece
| | - Konstantinos Gkagkavouzis
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of ScienceAristotle University of ThessalonikiThessalonikiGreece
- Genomics and Epigenomics Translational Research (GENeTres)Center for Interdisciplinary Research and Innovation (CIRI‐AUTH), Balkan CenterThessalonikiGreece
| | - Nikoleta Karaiskou
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of ScienceAristotle University of ThessalonikiThessalonikiGreece
- Genomics and Epigenomics Translational Research (GENeTres)Center for Interdisciplinary Research and Innovation (CIRI‐AUTH), Balkan CenterThessalonikiGreece
| | - Efthimia Antonopoulou
- Department of Zoology, School of BiologyAristotle University of ThessalonikiThessalonikiGreece
| | - Alexandros Triantafyllidis
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of ScienceAristotle University of ThessalonikiThessalonikiGreece
- Genomics and Epigenomics Translational Research (GENeTres)Center for Interdisciplinary Research and Innovation (CIRI‐AUTH), Balkan CenterThessalonikiGreece
| | - Spiros Papakostas
- Department of Science and TechnologyInternational Hellenic UniversityThessalonikiGreece
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Kountourantzis A, Minoudi S, Karaiskou N, Papakostas S, Moulistanos A, Baka RD, Tsartsianidou V, Vlachavas A, Aivaliotis M, Polizopoulou ZS, Triantafyllidis A. Prevalence of SOD1 allele associated with degenerative myelopathy in canine population in Greece. Res Vet Sci 2023; 162:104959. [PMID: 37480717 DOI: 10.1016/j.rvsc.2023.104959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 03/09/2023] [Accepted: 07/16/2023] [Indexed: 07/24/2023]
Abstract
Canine degenerative myelopathy (CDM) is a late-onset fatal disorder associated with a point mutation of the superoxide dismutase 1 (SOD1) gene (c.118G > A). The purpose of this study was to determine the genotype and allele frequencies of this mutation in 108 dogs, mainly in Belgian Malinois and German Shepherd dogs with (CDM-affected group) and without CDM clinical symptoms (control group) in Greece. Genotyping of the c.118G > A mutation was possible by Sanger sequencing and PCR-RFLP. The observed genotype frequencies for the control group were 89.4% for the homozygous (G/G), 9.6% for the heterozygous (A/G), and 0.96% for the homozygous mutant (A/A) allele. The mutant allele was not common in the Belgian Malinois dogs (allele frequency = 0.029), but quite common in the German Shepherd dogs (allele frequency = 0.138). In the CDM affected group, all 4 dogs were homozygous for the mutant allele. These frequencies were close to those expected, indicating no significant departure from Hardy-Weinberg equilibrium. A strong but not statistically significant association between the mutant allele and CDM was observed. A previously identified deletion upstream of the mutation of interest was found at a high frequency (0.361) in the population.
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Affiliation(s)
- Antonis Kountourantzis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Styliani Minoudi
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece
| | - Nikoleta Karaiskou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece
| | - Spiros Papakostas
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece
| | - Aristotelis Moulistanos
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece
| | - Rania D Baka
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Valentina Tsartsianidou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece
| | - Antonios Vlachavas
- Laboratory of Parasitology and Parasitic Diseases, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Michalis Aivaliotis
- Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece; Laboratory of Biological Chemistry, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Functional Proteomics and Systems Biology (FunPATh), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece; Institute of Molecular Biology & Biotechnology, Foundation for Research & Technology Hellas, 100 N. Plastira Street, 700 13, Heraklion, Crete, Greece; Basic and Translational Research Unit, Biomedical Research and Education Special Uniτ, School of Medicine, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Zoe S Polizopoulou
- Diagnostic Laboratory, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Alexandros Triantafyllidis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece; Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Thessaloniki 57001, Greece.
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3
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Moulistanos A, Karaiskou N, Gkagkavouzis K, Minoudi S, Drosopoulou E, Ioannidou C, Panteli N, Zografou S, Karaouglanis D, Kotouzas D, Kontodimas D, Antonopoulou E, Triantafyllidis A. Genetic Identification and Traceability of Insect Meals. Insects 2023; 14:610. [PMID: 37504616 PMCID: PMC10380534 DOI: 10.3390/insects14070610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/29/2023] [Accepted: 07/04/2023] [Indexed: 07/29/2023]
Abstract
Insects have been proposed as a rich alternative source of protein for the partial or total replacement of fishmeal in aquaculture. For maximum safety and effectiveness of insect meals, control of the quality composition of these products is considered mandatory. The aim of this study was the genetic analysis of the composition of commercially available insect meals at the species level. Commercially available Hermetia illucens, Tenebrio molitor and Musca domestica individuals, as well as nine insect meals produced from these species, were analyzed. The genetic identification of insects at the species level was based on a COI fragment, and analysis of the insect meals' composition was performed with the processes of cloning and colony PCR. Genetic analysis indicated that the commercially available larvae morphologically identified as Musca domestica belonged to the species Muscina stabulans. In the commercially available insect meals, no other animal species was identified beyond the expected one. However, in the insect meal produced for research purposes, fungal growth was detected. The used methodology, herein, allows for the qualitative genetic identification of insect meals and could be included in the methods of traceability of products containing insects and other animal species.
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Affiliation(s)
- Aristotelis Moulistanos
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
| | - Nikoleta Karaiskou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
| | - Konstantinos Gkagkavouzis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
| | - Styliani Minoudi
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
| | - Elena Drosopoulou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Chrysanthi Ioannidou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Nikolas Panteli
- Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Stella Zografou
- Department of Humanities, Social Sciences and Economics, School of Humanities, Social Sciences and Economics, International Hellenic University, 57001 Thessaloniki, Greece
| | - Damianos Karaouglanis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
| | - Dimitrios Kotouzas
- Laboratory of Agricultural Entomology, Benaki Phytopathological Institute, Kifissia, 14561 Athens, Greece
| | - Dimitrios Kontodimas
- Laboratory of Agricultural Entomology, Benaki Phytopathological Institute, Kifissia, 14561 Athens, Greece
| | - Efthimia Antonopoulou
- Department of Zoology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Alexandros Triantafyllidis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
- Genomics and Epigenomics Translational Research (GENeTres), Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, 57001 Thessaloniki, Greece
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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5
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Pylidis C, Anijalg P, Saarma U, Dawson DA, Karaiskou N, Butlin R, Mertzanis Y, Giannakopoulos A, Iliopoulos Y, Krupa A, Burke TA. Multisource noninvasive genetics of brown bears ( Ursus arctos) in Greece reveals a highly structured population and a new matrilineal contact zone in southern Europe. Ecol Evol 2021; 11:6427-6443. [PMID: 34141229 PMCID: PMC8207399 DOI: 10.1002/ece3.7493] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 02/14/2021] [Accepted: 02/22/2021] [Indexed: 11/21/2022] Open
Abstract
In human-dominated landscapes, connectivity is crucial for maintaining demographically stable mammalian populations. Here, we provide a comprehensive noninvasive genetic study for the brown bear population in the Hellenic Peninsula. We analyze its population structuring and connectivity, estimate its population size throughout its distribution, and describe its phylogeography in detail for the first time. Our results, based on 150 multilocus genotypes and on 244-bp sequences of the mtDNA control region, show the population is comprised by three highly differentiated genetic clusters, consistent with geographical populations of Pindos, Peristeri, and Rhodope. By detecting two male bears with Rhodopean ancestry in the western demes, we provide strong evidence for the ongoing genetic connectivity of the geographically fragmented eastern and western distributions, which suggests connectivity of the larger East Balkan and Pindos-Dinara populations. Total effective population size (N e) was estimated to be 199 individuals, and total combined population size (N C) was 499, with each cluster showing a relatively high level of genetic variability, suggesting that migration has been sufficient to counteract genetic erosion. The mtNDA results were congruent with the microsatellite data, and the three genetic clusters were matched predominantly with an equal number of mtDNA haplotypes that belong to the brown bear Western mitochondrial lineage (Clade 1), with two haplotypes being globally new and endemic. The detection of a fourth haplotype that belongs to the Eastern lineage (Clade 3a1) in three bears from the western distribution places the southernmost secondary contact zone between the Eastern and Western lineages in Greece and generates new hypotheses about postglacial maxima migration routes. This work indicates that the genetic composition and diversity of Europe's low-latitude fringe population are the outcome of ancient and historical events and highlight its importance for the connectivity and long-term persistence of the species in the Balkans.
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Affiliation(s)
- Charilaos Pylidis
- School of Biological SciencesUniversity of BristolBristolUK
- NERC Biomolecular Analysis FacilityDepartment of Animal and Plant SciencesUniversity of SheffieldUK
- Callisto Wildlife and Nature Conservation SocietyThessalonikiGreece
| | - Peeter Anijalg
- Department of ZoologyInstitute of Ecology and Earth SciencesUniversity of TartuTartuEstonia
| | - Urmas Saarma
- Department of ZoologyInstitute of Ecology and Earth SciencesUniversity of TartuTartuEstonia
| | - Deborah A. Dawson
- NERC Biomolecular Analysis FacilityDepartment of Animal and Plant SciencesUniversity of SheffieldUK
| | - Nikoleta Karaiskou
- Department of Genetics, Developmental and Molecular BiologySchool of BiologyAristotle University of ThessalonikiThessalonikiGreece
| | - Roger Butlin
- Department of Animal and Plant SciencesUniversity of SheffieldSheffieldUK
| | - Yorgos Mertzanis
- Callisto Wildlife and Nature Conservation SocietyThessalonikiGreece
| | | | | | - Andrew Krupa
- Department of Animal and Plant SciencesUniversity of SheffieldSheffieldUK
| | - Terence A. Burke
- NERC Biomolecular Analysis FacilityDepartment of Animal and Plant SciencesUniversity of SheffieldUK
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Strachinis I, Poulakakis N, Karaiskou N, Patronidis P, Patramanis I, Poursanidis D, Jablonski D, Triantafyllidis A. Phylogeography and systematics of
Algyroides
(Sauria: Lacertidae) of the Balkan Peninsula. ZOOL SCR 2021. [DOI: 10.1111/zsc.12471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Ilias Strachinis
- Department of Genetics, Development and Molecular Biology School of Biology Faculty of Natural Sciences Aristotle University of Thessaloniki Greece
| | - Nikos Poulakakis
- Department of Biology University of Crete Irakleio Greece
- Natural History Museum of CreteUniversity of Crete Irakleio Greece
| | - Nikoleta Karaiskou
- Department of Genetics, Development and Molecular Biology School of Biology Faculty of Natural Sciences Aristotle University of Thessaloniki Greece
| | - Politis Patronidis
- Department of Genetics, Development and Molecular Biology School of Biology Faculty of Natural Sciences Aristotle University of Thessaloniki Greece
| | | | - Dimitris Poursanidis
- Foundation for Research and Technology – Hellas (FORTH) Institute of Applied and Computational Mathematics Iraklion Greece
| | | | - Alexandros Triantafyllidis
- Department of Genetics, Development and Molecular Biology School of Biology Faculty of Natural Sciences Aristotle University of Thessaloniki Greece
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7
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Maroso F, Gkagkavouzis K, De Innocentiis S, Hillen J, do Prado F, Karaiskou N, Taggart JB, Carr A, Nielsen E, Triantafyllidis A, Bargelloni L. Genome-wide analysis clarifies the population genetic structure of wild gilthead sea bream (Sparus aurata). PLoS One 2021; 16:e0236230. [PMID: 33428622 PMCID: PMC7799848 DOI: 10.1371/journal.pone.0236230] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 12/22/2020] [Indexed: 11/30/2022] Open
Abstract
Gilthead sea bream is an important target for both recreational and commercial fishing in Europe, where it is also one of the most important cultured fish. Its distribution ranges from the Mediterranean to the African and European coasts of the North-East Atlantic. Until now, the population genetic structure of this species in the wild has largely been studied using microsatellite DNA markers, with minimal genetic differentiation being detected. In this geographically widespread study, 958 wild gilthead sea bream from 23 locations within the Mediterranean Sea and Atlantic Ocean were genotyped at 1159 genome-wide SNP markers by RAD sequencing. Outlier analyses identified 18 loci potentially under selection. Neutral marker analyses identified weak subdivision into three genetic clusters: Atlantic, West, and East Mediterranean. The latter group could be further subdivided into an Ionian/Adriatic and an Aegean group using the outlier markers alone. Seascape analysis suggested that this differentiation was mainly due to difference in salinity, this being also supported by preliminary genomic functional analysis. These results are of fundamental importance for the development of proper management of this species in the wild and are a first step toward the study of the potential genetic impact of the sea bream aquaculture industry.
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Affiliation(s)
- Francesco Maroso
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro (PD), Italy
| | - Konstantinos Gkagkavouzis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | | | - Jasmien Hillen
- Laboratory of Biodiversity and Evolutionary Genomics, University of Leuven, Leuven, Belgium
| | - Fernanda do Prado
- Department of Biological Sciences, São Paulo State University, Bauru, Brazil
| | - Nikoleta Karaiskou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | | | - Adrian Carr
- Fios Genomics Ltd, Edinburgh, United Kingdom
| | - Einar Nielsen
- Section for Population Ecology and Genetics, National Institute of Aquatic Resources, Technical University of Denmark, Silkeborg, Denmark
| | - Alexandros Triantafyllidis
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Luca Bargelloni
- Department of Comparative Biomedicine and Food Science, University of Padua, Legnaro (PD), Italy
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8
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Karaiskou N, Gkagkavouzis K, Minoudi S, Botskaris D, Markou K, Kalafatakis S, Antonopoulou E, Triantafyllidis A. Genetic structure and divergence of tench Tinca tinca European populations. J Fish Biol 2020; 97:930-934. [PMID: 32598030 DOI: 10.1111/jfb.14448] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 06/12/2020] [Accepted: 06/27/2020] [Indexed: 06/11/2023]
Abstract
The tench Tinca tinca is a freshwater species with human-mediated translocations, aquaculture interest and limited information on its genetic structure. mtDNA sequencing analysis of control region and two genes in 50 individuals from five European populations identified two phylogroups, with greater variability than that reported until now, and a hybridization zone in the Danube River region. Restriction analyses of additional samples reveal the complicated genetic structure characteristics of tench's wild and translocated populations, supporting future breeding practices.
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Affiliation(s)
- Nikoleta Karaiskou
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Konstantinos Gkagkavouzis
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stella Minoudi
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dimitrios Botskaris
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Kyriaki Markou
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Stavros Kalafatakis
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Efthimia Antonopoulou
- Department of Zoology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexandros Triantafyllidis
- Department of Genetics, Development and Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Gkagkavouzis K, Karaiskou N, Katopodi T, Leonardos I, Abatzopoulos TJ, Triantafyllidis A. The genetic population structure and temporal genetic stability of gilthead sea bream Sparus aurata populations in the Aegean and Ionian Seas, using microsatellite DNA markers. J Fish Biol 2019; 94:606-613. [PMID: 30746701 DOI: 10.1111/jfb.13932] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 02/11/2019] [Indexed: 06/09/2023]
Abstract
We examined 662 gilthead sea bream Sparus aurata from wild samples of the species in the Aegean and Ionian Seas, using 20 EST-linked microsatellite markers, in three multiplex panels, as well as seven anonymous loci. Most of the markers were revealed to be highly polymorphic. We found low genetic differentiation between the sampling stations/areas with total FST 0.002 (P < 0.05). Based on comparison of five temporal samples, our results indicate genetic data consistency over time for all tested samples, pointing to stable populations, despite reported repeated escape events. Our results confirm the genetic population structure previously observed in these specific areas, using by far more markers than in previous studies in both coding and non-coding DNA loci. The limited genetic structure and the temporal genetic stability indicate neither major genetic differentiation of local populations by geographic isolation nor influence from anthropogenic factors. These results provide a baseline for future reference in any management programme of both wild and farmed population of S. aurata as well as of other aquaculture species with a potential introgression among farmed and wild populations.
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Affiliation(s)
- Konstantinos Gkagkavouzis
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikoleta Karaiskou
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodora Katopodi
- Department of Biological Sciences and Preventive Medicine, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Leonardos
- Department of Biological Applications and Technologies, School of Health Sciences, University of Ioannina, Ioannina, Greece
| | - Theodore J Abatzopoulos
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexander Triantafyllidis
- Department of Genetics, Development & Molecular Biology, School of Biology, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
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10
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Minoudi S, Papapetridis I, Karaiskou N, Chatzinikos E, Triantaphyllidis C, Abatzopoulos TJ, Triantafyllidis A. Genetic analyses of brown hare (Lepus europaeus) support limited migration and translocation of Greek populations. PLoS One 2018; 13:e0206327. [PMID: 30379887 PMCID: PMC6209229 DOI: 10.1371/journal.pone.0206327] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 10/10/2018] [Indexed: 11/18/2022] Open
Abstract
Numerous studies have shown that the phylogeography of many species, including European brown hare, has been affected by the climatic oscillations of the Pleistocene. During this period the Balkans acted as a major refugium offering habitable conditions for many species. However, few studies have focused on the specific role of the Greek peninsula in the phylogeographic history of species in this southernmost margin of Balkans. We, therefore analyzed a 528 bp fragment of the D-loop region of mitochondrial DNA in 154 wild brown hare individuals from unsampled areas from both mainland and island Greece and compared it to 310 available brown hare sequences (including 110 Greek samples). Newly identified haplotypes show characteristic distribution in specific Greek areas reinforcing the theory that Greece can be considered as a subrefuge within Balkans for a number of species, with several “refugia within refugia” spots, holding significant genetic diversity. No haplotypes from wild Greek individuals clustered with the Central and Western Europe group revealing a minimal contribution of this area to the colonization of central Europe. One hundred and ten reared brown hares were also analyzed to elucidate the impact of introductions on local populations. Most of these samples presented close genetic affinity with haplotypes from Central and Western Europe indicating that farms in Greece use breeders from those areas. Therefore, despite human translocation of individuals, the genetic structure of brown hare has mostly been influenced by paleoclimatic conditions and minimally by human actions.
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Affiliation(s)
- Styliani Minoudi
- Deparment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Papapetridis
- Deparment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Nikoleta Karaiskou
- Deparment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Costas Triantaphyllidis
- Deparment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Theodore J. Abatzopoulos
- Deparment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Alexandros Triantafyllidis
- Deparment of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Thessaloniki, Greece
- * E-mail:
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11
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Tsartsianidou V, Triantafillidou D, Karaiskou N, Tarantili P, Triantafillidis G, Georgakis E, Triantafyllidis A. Caprine and ovine Greek dairy products: The official German method generates false-positive results due to κ-casein gene polymorphism. J Dairy Sci 2017; 100:3539-3547. [PMID: 28318592 DOI: 10.3168/jds.2016-11677] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 12/20/2016] [Indexed: 11/19/2022]
Abstract
Caseins are widely used for species identification of dairy products. Isoelectric focusing (IEF) of para-κ-casein peptide is used as the official German method for the differentiation between caprine (isoform A) and ovine (isoform B) dairy products, based on their different isoelectric points. The discrimination between Greek goat and ewe dairy products using IEF has, however, been shown to be problematic because of the existence of the ewe isoform in milk from Greek indigenous dairy goats. This could be due to nucleotide polymorphisms within the goat κ-casein gene of Greek indigenous breeds, which alter the isoelectric point of the para-κ-casein peptide and lead to false positive results. Previous DNA analysis of the goat κ-casein gene has shown high levels of polymorphism; however, no such information is available for Greek indigenous dairy goats. Therefore, 87 indigenous dairy goats were sequenced at exon IV of κ-casein gene. In total, 9 polymorphic sites were detected. Three nonsynonymous point mutations were identified, which change the isoelectric point of the goat para-κ-casein peptide so that it appears identical to that of the ewe peptide. Ten composite genotypes were reconstructed and 6 of them included the problematic point mutations. For the verification of genetic results, IEF was carried out. Both goat and ewe patterns appeared in the problematic genotypes. The frequency of these genotypes could be characterized as moderate (0.23) to high (0.60) within Greek indigenous breeds. However, this is not an issue restricted to Greece, as such genotypes have been detected in various non-Greek goat breeds. In conclusion, IEF based on the official German method is certainly inappropriate for ovine and caprine discrimination concerning Greek dairy goat products, and consequently a new method should be established.
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Affiliation(s)
- V Tsartsianidou
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - D Triantafillidou
- Thessaloniki Subdivision of General Chemical State Laboratory, Thessaloniki 54625, Greece
| | - N Karaiskou
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - P Tarantili
- Thessaloniki Subdivision of General Chemical State Laboratory, Thessaloniki 54625, Greece
| | | | - E Georgakis
- MEVGAL SA Dairy Company, Thessaloniki 51100, Greece
| | - A Triantafyllidis
- School of Biology, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
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Tsaparis D, Karaiskou N, Mertzanis Y, Triantafyllidis A. Non-invasive genetic study and population monitoring of the brown bear (Ursus arctos) (Mammalia: Ursidae) in Kastoria region – Greece. J NAT HIST 2014. [DOI: 10.1080/00222933.2013.877992] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Karaiskou N, Tsakogiannis A, Gkagkavouzis K, Papika S, Latsoudis P, Kavakiotis I, Pantis J, Abatzopoulos TJ, Triantaphyllidis C, Triantafyllidis A. Greece: a Balkan subrefuge for a remnant red deer (cervus elaphus) population. J Hered 2014; 105:334-44. [PMID: 24558101 DOI: 10.1093/jhered/esu007] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A number of phylogeographic studies have revealed the existence of multiple ice age refugia within the Balkan Peninsula, marking it as a biodiversity hotspot. Greece has been reported to harbor genetically differentiated lineages from the rest of Balkans for a number of mammal species. We therefore searched for distinct red deer lineages in Greece, by analyzing 78 samples originating from its last population in Parnitha Mountain (Central Greece). Additionally, we tested the impact of human-induced practices on this population. The presence of 2 discrete mtDNA lineages was inferred: 1) an abundant one not previously sampled in the Balkans and 2) a more restricted one shared with other Balkan populations, possibly the result of successful translocations of Eastern European individuals. Microsatellite-based analyses of 14 loci strongly support the existence of 2 subpopulations with relative frequencies similar to mitochondrial analyses. This study stresses the biogeographic importance of Central Greece as a separate Last Glacial Maximum period refugium within the Balkans. It also delineates the possible effects that recent translocations of red deer populations had on the genetic structuring within Parnitha. We suggest that the Greek red deer population of Parnitha is genetically distinct, and restocking programs should take this genetic evidence into consideration.
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Affiliation(s)
- Nikoleta Karaiskou
- the Department of Genetics, Developmental and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Leder EH, Karaiskou N, Primmer CR. Seventy new microsatellites for the pied flycatcher, Ficedula hypoleuca and amplification in other passerine birds. Mol Ecol Resour 2013; 8:874-80. [PMID: 21585917 DOI: 10.1111/j.1755-0998.2008.02096.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The pied flycatcher (Ficedula hypoleuca) is a small migratory passerine bird commonly distributed across Europe which has been the focus of considerable ecological and evolutionary research. Here, we present details of 70 microsatellite markers for the species adding to the six which are currently available. Sixty-six markers were also polymorphic in the closely related collared flycatcher (Ficedula albicollis), while 54 were polymorphic in another related passerine, the bluethroat (Luscinia svecica), and 12 were polymorphic in the more distantly related Siberian jay (Perisoreus infaustus).
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Affiliation(s)
- E H Leder
- Department of Biology, University of Turku, 20014 Turku, Finland, Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, PO BOX 54 124 Thessaloniki, Macedonia, Greece
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Karaiskou N, Triantafyllidis A, Katsares V, Abatzopoulos TJ, Triantaphyllidis C. Microsatellite variability of wild and farmed populations of Sparus aurata. J Fish Biol 2009; 74:1816-25. [PMID: 20735673 DOI: 10.1111/j.1095-8649.2009.02186.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The genetic diversity of Greek wild and farmed populations of Sparus aurata was investigated using seven microsatellite markers. Selective breeding programmes and founder effects have altered the composition of farmed populations leading to significant population differentiation between wild and cultured populations and lower allelic richness in farmed populations.
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Affiliation(s)
- N Karaiskou
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, 54 124 Thessaloniki, Macedonia, Greece
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Abstract
Mitochondrial DNA (mtDNA) control region sequences were determined in 54 unrelated Greeks, coming from different regions in Greece, for both segments HVR-I and HVR-II. Fifty-two different mtDNA haplotypes were revealed, one of which was shared by three individuals. A very low heterogeneity was found among Greek regions. No one cluster of lineages was specific to individuals coming from a certain region. The average pairwise difference distribution showed a value of 7.599. The data were compared with that for other European or neighbor populations (British, French, Germans, Tuscans, Bulgarians, and Turks). The genetic trees that were constructed revealed homogeneity between Europeans. Median networks revealed that most of the Greek mtDNA haplotypes are clustered to the five known haplogroups and that a number of haplotypes are shared among Greeks and other European and Near Eastern populations.
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Affiliation(s)
- A Kouvatsi
- Department of Genetics, Development and Molecular Biology, School of Biology, Aristotle University of Thessaloniki, Greece
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