14 results on '"Benzekri, Hicham"'
Search Results
2. Development of whole-genome multiplex assays and construction of an integrated genetic map using SSR markers in Senegalese sole
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Guerrero-Cózar, Israel, Perez-Garcia, Cathaysa, Benzekri, Hicham, Sánchez, J. J., Seoane, Pedro, Cruz, Fernando, Gut, Marta, Zamorano, Maria Jesus, Claros, M. Gonzalo, and Manchado, Manuel
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- 2020
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3. Statistical Significance for NGS Reads Similarities
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Muñoz-Mérida, Antonio, Ríos, Javier, Benzekri, Hicham, Trelles, Oswaldo, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Istrail, Sorin, editor, Pevzner, Pavel, editor, Waterman, Michael S., editor, Freitas, Ana T., editor, and Navarro, Arcadi, editor
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- 2012
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4. Statistical Significance for NGS Reads Similarities
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Muñoz-Mérida, Antonio, primary, Ríos, Javier, additional, Benzekri, Hicham, additional, and Trelles, Oswaldo, additional
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- 2012
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5. Aportación Bioinformática a la Biología de Especies Marinas
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Benzekri, Hicham, Biología Molecular y Bioquímica, and Gonzalo Claros, M.
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Acuicultura - Tesis doctorales ,Especies marinas ,Genómica ,Datos NGS ,Análisis bioinformático - Abstract
Los recursos marinos son de gran interés económico en todo el mundo. La acuicultura es el sector de producción de alimentos de mayor crecimiento y se espera que en el futuro cercano produzca más alimento para el consumo humano que la pesca de captura. Sin embargo, a diferencia de lo que ha ocurrido en los sectores agrícola, ganadero y avícola donde se han obtenido mejoras en la producción basándose en enfoques modernos de cría sustentados en genómica, las aplicaciones de los principios genéticos para las especies usadas en acuicultura es un campo reciente que ha permitido mejorar el cultivo de sólo unas pocas especies a través de tecnologías clásicas de selección genética como son las cruzas intraespecíficas e interespecíficas. La aplicación de estrategias de cultivo basadas en biotecnologías genómicas podrían tener un gran potencial ya que permitirán obtener mejoras a largo plazo a través de la identificación de diversos marcadores moleculares que faciliten los programas de cultivo selectivo, el desarrollo de peces transgénicos resistentes a enfermedades y/o con mejores índices de crecimiento, así como la aplicación de diversas técnicas moleculares para el diagnóstico y caracterización de patógenos y el diseño de vacunas moleculares más efectivas, fáciles de producir y de administrar. Así que el uso combinado de las diferentes biotecnologías permitirá potenciar la producción de especies acuícolas. Este trabajo de doctorado se ha realizado en el grupo de investigación de la Plataforma Andaluza de Bioinformática bajo la dirección del profesor M. Gonzalo Claros Díaz en cooperación el grupo de investigación de grupo de investigación de IFAPA El Toruño (Cádiz) del Dr. Manuel Manchado Campaña. El objetivo final era de realizar un análisis genómico del lenguado senegalés y el lenguado común además de otras especies afines basándonos sobre los datos de lecturas NGS, encaminado hacia la profundización en el conocimiento del transcriptoma y del genoma de estas especies, así como establecer las herramientas bioinformáticas que resultarán más útiles para dichos estudios. En gran parte, este trabajo ha sido posible gracias al personal y la infraestructura de la Plataforma Andaluza de Bioinformática (PAB), donde es posible acceder a recursos informáticos sin los que parte del trabajo hubiera sido de difícil resolución, además de aprender técnicas de programación, que han permitido que los programas desarrollados en este trabajo puedan ser ejecutados en paralelo.
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- 2017
6. Characterization of Iodine-Related Molecular Processes in the Marine Microalga Tisochrysis lutea (Haptophyta)
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Hernández Javier, Laura, primary, Benzekri, Hicham, additional, Gut, Marta, additional, Claros, M. Gonzalo, additional, van Bergeijk, Stefanie, additional, Cañavate, José Pedro, additional, and Manchado, Manuel, additional
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- 2018
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7. A workflow with dedicated tools for preparing reference transcriptomes from non-model organisms has evidenced important biological information
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Claros-Diaz, Manuel Gonzalo, Benzekri, Hicham, Seoane, Pedro, Carmona, Rosario, Bautista, Rocío, Guerrero-Fernández, Darío, and Fernández-Pozo, Noé
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Biología molecular ,Non-model organism ,Bioinformatics ,Annotation ,Transcriptome ,Workflow - Abstract
Construction transcriptomes of non-model organisms is a common task nowadays due to the advent of low-cost sequencing platforms. The non-model organisms require a de novo assembling strategy since no reference is available. Moreover, DNA or RNA from non-model species usually comes from natural, highly heterozygous populations, providing an additional complexity to the assembly process. To facilitate the otherwise cumbersome task of obtaining the better transcriptome, here it is presented an automatic, reliable pipeline that uses public and newly designed tools to do so, handling both short and long reads. It starts with our pre-processing software SeqTrimNext that extracts reliable reads and removes any uncertain sequence that could obscure the final result. Two different algorithms (usually MRA3 and Euler-SR, or Oases) are used to provide different sets of contigs that are then simplified using CD-HIT. Mapping with Bowtie2 is used to discard artefactual contigs. Reliable contigs are analysed with our software Full-LengtherNext to discard non-coding sequences, split chimeras, detect transcripts containing complete proteins, provide an overview of the transcriptome, and sort putative new or species-specific transcripts. Other valuable features of Full-LengtherNext are the selection of the closest orthologue from a model species, and the extraction of a reference transcriptome that can be further used for RNA-seq studies. Finally, descriptions, GO, InterPro, KEGG and EC codes are added using Sma3 and AutoFact, and a set of microsatellite markers is obtained with MREPS. The structure of the pipeline has been automatised with AutFlow, a framework developed in our laboratory to automatise repetitive and long tasks, enabling taking decisions (such as which is the better assembly) during the execution without human intervention. This strategy has been already used for assembling several transcriptomes and provide functional characterisation of pollinic tube genes (olive tree), genes related to eye development (sole), resistance to bight (bean) and the comparison of gene family sizes (pine). Moreover, lot of genes have been cloned in pine, sole and olive tree based on the sequences revealed by our pipeline. Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
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- 2014
8. Genome-wide gene expression analysis during solea sp. embryo-larval development
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Cousin, Xavier, Claros, M. Gonzalo, Mazurais, David, Bautista, Rocío, Benzekri, Hicham, Bégout, Marie-Laure, Ponce, Marian, Armesto, Paula, Zambonino, Jose Luis, Planas, Josep V, Manchado, Manuel, Laboratoire de Physiologie et Génomique des Poissons (LPGP), Institut National de la Recherche Agronomique (INRA)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Laboratoire d ’ Ecotoxicologie, Place Gaby Coll, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Universidad de Málaga [Málaga] = University of Málaga [Málaga], Plataforma Andaluza de Bioinformática, Edificio de Bioinnovación, C/ Severo Ochoa 34, Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Instituto Andaluz de Investigación y Formación Agraria y Pesquera (IFAPA), University of Barcelona, Ghent University [Belgium] (UGENT). BEL., Laboratoire d'Écotoxicologie (LEX), Biogéochimie et Ecotoxicologie (BE), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), and Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
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[SDV.BA]Life Sciences [q-bio]/Animal biology ,ComputingMilieux_MISCELLANEOUS - Abstract
Session 1: Broodstock Management, Maturation and Spawning; International audience
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- 2013
9. De novo assembly, characterization and functional annotation of Senegalese sole (Solea senegalensis) and common sole (Solea solea) transcriptomes: integration in a database and design of a microarray
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Benzekri, Hicham, Armesto, Paula, Cousin, Xavier, Rovira, Mireia, Crespo, Diego, Alejandro Merlo, Manuel, Mazurais, David, Bautista, Rocio, Guerrero-fernandez, Dario, Fernandez-pozo, Noe, Ponce, Marian, Infante, Carlos, Zambonino-infante, Jose Luis, Nidelet, Sabine, Gut, Marta, Rebordinos, Laureana, Planas, Josep V., Begout, Marie-laure, Gonzalo Claros, M., Manchado, Manuel, Benzekri, Hicham, Armesto, Paula, Cousin, Xavier, Rovira, Mireia, Crespo, Diego, Alejandro Merlo, Manuel, Mazurais, David, Bautista, Rocio, Guerrero-fernandez, Dario, Fernandez-pozo, Noe, Ponce, Marian, Infante, Carlos, Zambonino-infante, Jose Luis, Nidelet, Sabine, Gut, Marta, Rebordinos, Laureana, Planas, Josep V., Begout, Marie-laure, Gonzalo Claros, M., and Manchado, Manuel
- Abstract
Background Senegalese sole (Solea senegalensis) and common sole (S. solea) are two economically and evolutionary important flatfish species both in fisheries and aquaculture. Although some genomic resources and tools were recently described in these species, further sequencing efforts are required to establish a complete transcriptome, and to identify new molecular markers. Moreover, the comparative analysis of transcriptomes will be useful to understand flatfish evolution. Results A comprehensive characterization of the transcriptome for each species was carried out using a large set of Illumina data (more than 1,800 millions reads for each sole species) and 454 reads (more than 5 millions reads only in S. senegalensis), providing coverages ranging from 1,384x to 2,543x. After a de novo assembly, 45,063 and 38,402 different transcripts were obtained, comprising 18,738 and 22,683 full-length cDNAs in S. senegalensis and S. solea, respectively. A reference transcriptome with the longest unique transcripts and putative non-redundant new transcripts was established for each species. A subset of 11,953 reference transcripts was qualified as highly reliable orthologs (>97% identity) between both species. A small subset of putative species-specific, lineage-specific and flatfish-specific transcripts were also identified. Furthermore, transcriptome data permitted the identification of single nucleotide polymorphisms and simple-sequence repeats confirmed by FISH to be used in further genetic and expression studies. Moreover, evidences on the retention of crystallins crybb1, crybb1-like and crybb3 in the two species of soles are also presented. Transcriptome information was applied to the design of a microarray tool in S. senegalensis that was successfully tested and validated by qPCR. Finally, transcriptomic data were hosted and structured at SoleaDB. Conclusions Transcriptomes and molecular markers identified in this study represent a valuable source for future genomic stu
- Published
- 2014
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10. De novo assembly, characterization and functional annotation of Senegalese sole (Solea senegalensis) and common sole (Solea solea) transcriptomes: integration in a database and design of a microarray
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0000-0002-6489-5566, Benzekri, Hicham, Armesto, Paula, Cousin, Xavier, Rovira, Mireia, Crespo, Diego, Merlo, Manuel Alejandro, Mazurais, David, Bautista, Rocío, Guerrero-Fernández, Darío, Fernández-Pozo, Noé, Ponce, Marian, Infante, Carlos, Zambonino, Jose Luis, Nidelet, Sabine, Gut, Marta, Rebordinos, Laureana, Planas, Josep V, Bégout, Marie-Laure, Claros, M Gonzalo, Manchado, Manuel, 0000-0002-6489-5566, Benzekri, Hicham, Armesto, Paula, Cousin, Xavier, Rovira, Mireia, Crespo, Diego, Merlo, Manuel Alejandro, Mazurais, David, Bautista, Rocío, Guerrero-Fernández, Darío, Fernández-Pozo, Noé, Ponce, Marian, Infante, Carlos, Zambonino, Jose Luis, Nidelet, Sabine, Gut, Marta, Rebordinos, Laureana, Planas, Josep V, Bégout, Marie-Laure, Claros, M Gonzalo, and Manchado, Manuel
- Abstract
Senegalese sole (Solea senegalensis) and common sole (S. solea) are two economically and evolutionary important flatfish species both in fisheries and aquaculture. Although some genomic resources and tools were recently described in these species, further sequencing efforts are required to establish a complete transcriptome, and to identify new molecular markers. Moreover, the comparative analysis of transcriptomes will be useful to understand flatfish evolution.
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- 2014
11. De novo assembly, characterization and functional annotation of Senegalese sole (Solea senegalensis) and common sole (Solea solea) transcriptomes: integration in a database and design of a microarray
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Benzekri, Hicham, primary, Armesto, Paula, additional, Cousin, Xavier, additional, Rovira, Mireia, additional, Crespo, Diego, additional, Merlo, Manuel Alejandro, additional, Mazurais, David, additional, Bautista, Rocío, additional, Guerrero-Fernández, Darío, additional, Fernandez-Pozo, Noe, additional, Ponce, Marian, additional, Infante, Carlos, additional, Zambonino, Jose Luis, additional, Nidelet, Sabine, additional, Gut, Marta, additional, Rebordinos, Laureana, additional, Planas, Josep V, additional, Bégout, Marie-Laure, additional, Claros, M Gonzalo, additional, and Manchado, Manuel, additional
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- 2014
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12. De novo assembly of maritime pine transcriptome: implications for forest breeding and biotechnology
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Canales, Javier, primary, Bautista, Rocio, additional, Label, Philippe, additional, Gómez‐Maldonado, Josefa, additional, Lesur, Isabelle, additional, Fernández‐Pozo, Noe, additional, Rueda‐López, Marina, additional, Guerrero‐Fernández, Dario, additional, Castro‐Rodríguez, Vanessa, additional, Benzekri, Hicham, additional, Cañas, Rafael A., additional, Guevara, María‐Angeles, additional, Rodrigues, Andreia, additional, Seoane, Pedro, additional, Teyssier, Caroline, additional, Morel, Alexandre, additional, Ehrenmann, François, additional, Le Provost, Grégoire, additional, Lalanne, Céline, additional, Noirot, Céline, additional, Klopp, Christophe, additional, Reymond, Isabelle, additional, García‐Gutiérrez, Angel, additional, Trontin, Jean‐François, additional, Lelu‐Walter, Marie‐Anne, additional, Miguel, Celia, additional, Cervera, María Teresa, additional, Cantón, Francisco R., additional, Plomion, Christophe, additional, Harvengt, Luc, additional, Avila, Concepción, additional, Gonzalo Claros, M., additional, and Cánovas, Francisco M., additional
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- 2013
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13. A reliable pipeline for a transcriptome reference in Non-Model Species
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Benzekri, Hicham, primary, Bautista, Rocío, additional, Guerrero-Fernández, Darío, additional, Fernández-Pozo, Noé, additional, and Claros, M. Gonzalo, additional
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- 2013
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14. De novo assembly of maritime pine transcriptome: implications for forest breeding and biotechnology.
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Canales, Javier, Bautista, Rocio, Label, Philippe, Gómez‐Maldonado, Josefa, Lesur, Isabelle, Fernández‐Pozo, Noe, Rueda‐López, Marina, Guerrero‐Fernández, Dario, Castro‐Rodríguez, Vanessa, Benzekri, Hicham, Cañas, Rafael A., Guevara, María‐Angeles, Rodrigues, Andreia, Seoane, Pedro, Teyssier, Caroline, Morel, Alexandre, Ehrenmann, François, Provost, Grégoire, Lalanne, Céline, and Noirot, Céline
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MARINE plants ,CLUSTER pine ,FORESTS & forestry ,PLANT breeding ,PLANT biotechnology ,CONIFERS ,SINGLE nucleotide polymorphisms - Abstract
Maritime pine ( Pinus pinaster Ait.) is a widely distributed conifer species in Southwestern Europe and one of the most advanced models for conifer research. In the current work, comprehensive characterization of the maritime pine transcriptome was performed using a combination of two different next-generation sequencing platforms, 454 and Illumina. De novo assembly of the transcriptome provided a catalogue of 26 020 unique transcripts in maritime pine trees and a collection of 9641 full-length c DNAs. Quality of the transcriptome assembly was validated by RT- PCR amplification of selected transcripts for structural and regulatory genes. Transcription factors and enzyme-encoding transcripts were annotated. Furthermore, the available sequencing data permitted the identification of polymorphisms and the establishment of robust single nucleotide polymorphism ( SNP) and simple-sequence repeat ( SSR) databases for genotyping applications and integration of translational genomics in maritime pine breeding programmes. All our data are freely available at Sustainpine DB, the P. pinaster expressional database. Results reported here on the maritime pine transcriptome represent a valuable resource for future basic and applied studies on this ecological and economically important pine species. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
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