1. Chromosome anchoring in Senegalese sole (Solea senegalensis) reveals sex-associated markers and genome rearrangements in flatfish
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M. Gonzalo Claros, Concha Berbel, Manuel Manchado, Juan F. Martinez-Blanch, Jèssica Gómez-Garrido, Israel Guerrero-Cózar, Pierre-Alexandre Gagnaire, Tyler Alioto, Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Institut de recherche pour le développement [IRD] : UR226-Centre National de la Recherche Scientifique (CNRS), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226, Guerrero-Cózar, Israel, Gómez-Garrido, Jèssica, Berbel, Concha, Martinez-Blanch, Juan F., Alioto, Tyler, Claros, M. Gonzalo, Gagnaire, Pierre-Alexandre, Manchado, Manuel, [Guerrero-Cózar,I, Berbel,C, Manchado,M] IFAPA Centro El Toruño, Junta de Andalucía, Puerto de Santa María, Cádiz, Spain. [Gomez-Garrido,J, Alioto,T] CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain. [Martinez-Blanch,JF] Biopolis S.L.-ADM, Parc Cientifc Universidad De Valencia, Paterna, Spain. [Alioto,T] Universitat Pompeu Fabra (UPF), Barcelona, Spain. [Claros,MG] Department of Molecular Biology and Biochemistry, Universidad de Málaga, Málaga, Spain. [Claros,MG] CIBER de Enfermedades Raras (CIBERER), Málaga, Spain. [Claros,MG] Institute of Biomedical Research in Málaga (IBIMA), IBIMA-RARE, Málaga, Spain. [Claros,MG] Instituto de Hortofruticultura Subtropical Y Mediterránea (IHSM-UMA-CSIC), Málaga, Spain. [Gagnaire,PA] ISEM, Univ Montpellier, CNRS, EPHE, IRD, Montpellier, France. [Manchado,M] Crecimiento Azul, Centro IFAPA El Toruño, Unidad Asociada al CSIC, El Puerto de Santa María, Spain., and This study was funded by project RTA2017-00054-C03-01 and RTA2017-00054-C03-funded from MCIU/AEI/FEDER, UE and cofunded 80% by Programa Operativo FEDER de Andalucía 2014-2020, project PP.AVA.AVA201601.9 SOLEALGAE. Moreover, the study has received funding from EU H2020 research and innovation program under grant agreement 817992 ERANET-BLUEBIO COFUND project PCI2020-111994 BestBrood/AEI/10.13039/501100011033. IGC is funded by a predoctoral fellowship from INIA. This work would not have been possible without the computer resources and the technical support provided by the Plataforma Andaluza de Bioinformática of the University of Málaga and CNAG. We acknowledge the support of the Spanish Ministry of Science, Innovation and Universities to the EMBL partnership, the Centro de Excelencia Severo Ochoa and the CERCA Programme/Generalitat de Catalunya, the Spanish Ministry of Science and Innovation through the Instituto de Salud Carlos III, Generalitat de Catalunya through Departament de Salut and Departament d’Empresa i Coneixement and co-fnancing with funds from the European Regional Development Fund by the Spanish Ministry of Science and Innovation corresponding to the Programa Operativo FEDER Plurirregional de España (POPE) 2014-2020 and by the Secretaria d’Universitats i Recerca, Departament d’Empresa i Coneixe ment of the Generalitat de Catalunya corresponding to the Programa Operatiu FEDER de Catalunya 2014-20.
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Male ,Genetic Linkage ,Genome-wide association study ,Genome ,0302 clinical medicine ,Organisms::Eukaryota::Animals [Medical Subject Headings] ,Diferenciación sexual ,Ligamiento genético ,Genetics ,Gene Rearrangement ,0303 health sciences ,Multidisciplinary ,Contig ,Organisms::Eukaryota::Animals::Chordata::Vertebrates::Fishes::Flatfishes [Medical Subject Headings] ,[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] ,Genomics ,Penetrance ,Repeticiones de microsatélite ,Fatfish ,Phenomena and Processes::Genetic Phenomena::Genetic Structures::Base Sequence::Repetitive Sequences, Nucleic Acid::Tandem Repeat Sequences::Microsatellite Repeats [Medical Subject Headings] ,Flatfishes ,Medicine ,Sex ,Female ,Heterogametic sex ,Phenomena and Processes::Genetic Phenomena::Genetic Processes::Sex Determination Processes [Medical Subject Headings] ,Science ,Check Tags::Male [Medical Subject Headings] ,Locus (genetics) ,Biology ,Chromosome ,Article ,Phenomena and Processes::Genetic Phenomena::Genetic Structures::Genome [Medical Subject Headings] ,03 medical and health sciences ,Genetic linkage ,Phenomena and Processes::Genetic Phenomena::Genetic Linkage [Medical Subject Headings] ,Phenomena and Processes::Genetic Phenomena::Genetic Processes::Gene Rearrangement [Medical Subject Headings] ,Animals ,Genoma ,030304 developmental biology ,Animal breeding ,Cromosomas ,Sex Determination Processes ,[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics ,Genes ,Check Tags::Female [Medical Subject Headings] ,030217 neurology & neurosurgery ,Genome-Wide Association Study ,Microsatellite Repeats - Abstract
The integration of physical and high-density genetic maps is a very useful approach to achieve chromosome-level genome assemblies. Here, the genome of a male Senegalese sole (Solea senegalensis) was de novo assembled and the contigs were anchored to a high-quality genetic map for chromosome-level scaffolding. Hybrid assembled genome was 609.3 Mb long and contained 3403 contigs with a N50 of 513 kb. The linkage map was constructed using 16,287 informative SNPs derived from ddRAD sequencing in 327 sole individuals from five families. Markers were assigned to 21 linkage groups with an average number of 21.9 markers per megabase. The anchoring of the physical to the genetic map positioned 1563 contigs into 21 pseudo-chromosomes covering 548.6 Mb. Comparison of genetic and physical distances indicated that the average genome-wide recombination rate was 0.23 cM/Mb and the female-to-male ratio 1.49 (female map length: 2,698.4 cM, male: 2,036.6 cM). Genomic recombination landscapes were different between sexes with crossovers mainly concentrated toward the telomeres in males while they were more uniformly distributed in females. A GWAS analysis using seven families identified 30 significant sex-associated SNP markers located in linkage group 18. The follicle-stimulating hormone receptor appeared as the most promising locus associated with sex within a region with very low recombination rates. An incomplete penetrance of sex markers with males as the heterogametic sex was determined. An interspecific comparison with other Pleuronectiformes genomes identified a high sequence similarity between homologous chromosomes, and several chromosomal rearrangements including a lineage-specific Robertsonian fusion in S. senegalensis. This study was funded by project RTA2017-00054-C03-01 and RTA2017-00054-C03-funded from MCIU/AEI/FEDER, UE and cofunded 80% by Programa Operativo FEDER de Andalucía 2014-2020, project PP.AVA.AVA201601.9 SOLEALGAE. Moreover, the study has received funding from EU H2020 research and innovation program under grant agreement 817992 ERANET-BLUEBIO COFUND project PCI2020-111994 BestBrood/AEI/10.13039/501100011033. IGC is funded by a predoctoral fellowship from INIA. This work would not have been possible without the computer resources and the technical support provided by the Plataforma Andaluza de Bioinformática of the University of Málaga and CNAG.
- Published
- 2021
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