6 research outputs found

    Relato de una experiencia: La Maranya, una escuela de democracia ciudadana con jóvenes

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    El siguiente artículo busca difundir una experiencia asociativa enmarcada por la autogestión juvenil en el municipio de Benicàssim. Contamos cómo nace el centro cívico La Maranya y cuál es la ideología desde la que trabaja. La acción de esta asociación surge a partir del trabajo en el tiempo libre y de ocio como herramienta educativa. El centro parte de la participación cívica y democrática, el aprendizaje directo y el interés por los problemas de la sociedad para generar una escuela ciudadana de convivencia igualitaria. Este espacio trabaja con las jóvenes y los jóvenes como ciudadanas y ciudadanos activos conectados intergeneracionalmente con otros colectivos que lo conforman dentro de unos valores de progreso y participación social.Aquest article pretén difondre una experiència associativa emmarcada per l’autogestió juvenil al municipi de Benicàssim. Expliquem el naixement del centre cívic La Maranya i quina és la ideologia des de la qual treballa. L’acció d’aquesta associació sorgeix arran del treball en el temps lliure i d’esplai com a eina educativa. El centre parteix de la participació cívica i democràtica, de l’aprenentatge directe i l’interès pels problemes de la societat per a generar una escola ciutadana de convivència igualitària. L’espai treballa amb les persones joves com a ciutadanes i ciutadans actius connectats intergeneracionalment amb altres col·lectius que el conformen dins de valors de progrés i de participació social.The following article reports on an associational experience within the framework of young people’s self-management in the town of Benicàssim. We describe how La Maranya Civic Centre came into being and the ideology it is grounded on. The association’s action is based on using free time and leisure as an educational tool. The Civic Centre operates on the basis of democratic participation, non-formal learning and interest in society’s problems to generate a citizens’ school for egalitarian coexistence. The centre treats young people as active citizens who participate as equals with other age groups and associations, thus providing a context that fosters and promotes values associated with progress and democratic participation

    Long-term and transgenerational phenotypic, transcriptional and metabolic effects in rabbit males born following vitrified embryo transfer

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    [EN] The advent of assisted reproductive technologies (ART) in mammals involved an extraordinary change in the environment where the beginning of a new organism takes place. Under in vitro conditions, in which ART is currently being performed, it likely fails to mimic optimal in vivo conditions. This suboptimal environment could mediate in the natural developmental trajectory of the embryo, inducing lasting effects until later life stages that may be inherited by subsequent generations (transgenerational effects). Therefore, we evaluated the potential transgenerational effects of embryo exposure to the cryopreservation-transfer procedure in a rabbit model on the offspring phenotype, molecular physiology of the liver (transcriptome and metabolome) and reproductive performance during three generations (F1, F2 and F3). The results showed that, compared to naturally-conceived animals (NC group), progeny generated after embryo exposure to the cryopreservation-transfer procedure (VT group) exhibited lower body growth, which incurred lower adult body weight in the F1 (direct effects), F2 (intergenerational effects) and F3 (transgenerational effects) generations. Furthermore, VT animals showed intergenerational effects on heart weight and transgenerational effects on liver weight. The RNA-seq data of liver tissue revealed 642 differentially expressed transcripts (DETs) in VT animals from the F1 generation. Of those, 133 were inherited from the F2 and 120 from the F3 generation. Accordingly, 151, 190 and 159 differentially accumulated metabolites (DAMs) were detected from the F1, F2 and F3, respectively. Moreover, targeted metabolomics analysis demonstrated that transgenerational effects were mostly presented in the non-polar fraction. Functional analysis of molecular data suggests weakened zinc and fatty acid metabolism across the generations, associated with alterations in a complex molecular network affecting global hepatic metabolism that could be associated with the phenotype of VT animals. However, these VT animals showed proper reproductive performance, which verified a functional health status. In conclusion, our results establish the long-term transgenerational effects following a vitrified embryo transfer procedure. We showed that the VT phenotype could be the result of the manifestation of embryonic developmental plasticity in response to the stressful conditions during ART procedures.Funding from the Ministry of Economy, Industry and Competitiveness (Research project: AGL2014-53405-C2-1-P) and Generalitat Valenciana (Research project: Prometeo II 2014/036) is acknowledged. X.G.D. was supported by a research grant from the Ministry of Economy, Industry and Competitiveness (BES-2015-072429). 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    Exploiting the diversity of tomato: the development of a phenotypically and genetically detailed germplasm collection

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    A collection of 163 accessions, including Solanum pimpinellifolium, Solanum lycopersicum var. cerasiforme and Solanum lycopersicum var. lycopersicum, was selected to represent the genetic and morphological variability of tomato at its centers of origin and domestication: Andean regions of Peru and Ecuador and Mesoamerica. The collection is enriched with S. lycopersicum var. cerasiforme from the Amazonian region that has not been analyzed previously nor used extensively. The collection has been morphologically characterized showing diversity for fruit, flower and vegetative traits. Their genomes were sequenced in the Varitome project and are publicly available (solgenomics.net/projects/varitome). The identified SNPs have been annotated with respect to their impact and a total number of 37,974 out of 19,364,146 SNPs have been described as high impact by the SnpEeff analysis. GWAS has shown associations for different traits, demonstrating the potential of this collection for this kind of analysis. We have not only identified known QTLs and genes, but also new regions associated with traits such as fruit color, number of flowers per inflorescence or inflorescence architecture. To speed up and facilitate the use of this information, F2 populations were constructed by crossing the whole collection with three different parents. This F2 collection is useful for testing SNPs identified by GWAs, selection sweeps or any other candidate gene. All data is available on Solanaceae Genomics Network and the accession and F2 seeds are freely available at COMAV and at TGRC genebanks. All these resources together make this collection a good candidate for genetic studies

    The GB4.0 Platform, an All-In-One Tool for CRISPR/Cas-Based Multiplex Genome Engineering in Plants

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    [EN] CRISPR/Cas ability to target several loci simultaneously (multiplexing) is a game-changer in plant breeding. Multiplexing not only accelerates trait pyramiding but also can unveil traits hidden by functional redundancy. Furthermore, multiplexing enhances dCas-based programmable gene expression and enables cascade-like gene regulation. However, the design and assembly of multiplex constructs comprising tandemly arrayed guide RNAs (gRNAs) requires scarless cloning and is still troublesome due to the presence of repetitive sequences, thus hampering a more widespread use. Here we present a comprehensive extension of the software-assisted cloning platform GoldenBraid (GB), in which, on top of its multigene cloning software, we integrate new tools for the Type IIS-based easy and rapid assembly of up to six tandemly-arrayed gRNAs with both Cas9 and Cas12a, using the gRNA-tRNA-spaced and the crRNA unspaced approaches, respectively. As stress tests for the new tools, we assembled and used for Agrobacterium-mediated stable transformation a 17 Cas9-gRNAs construct targeting a subset of the Squamosa-Promoter Binding Protein-Like (SPL) gene family in Nicotiana tabacum. The 14 selected genes are targets of miR156, thus potentially playing an important role in juvenile-to-adult and vegetative-to-reproductive phase transitions. With the 17 gRNAs construct we generated a collection of Cas9-free SPL edited T-1 plants harboring up to 9 biallelic mutations and showing leaf juvenility and more branching. The functionality of GB-assembled dCas9 and dCas12a-based CRISPR/Cas activators and repressors using single and multiplexing gRNAs was validated using a Luciferase reporter with the Solanum lycopersicum Mtb promoter or the Agrobacterium tumefaciens nopaline synthase promoter in transient expression in Nicotiana benthamiana. With the incorporation of the new web-based tools and the accompanying collection of DNA parts, the GB4.0 genome edition turns an all-in-one open platform for plant genome engineering.This work had been funded by EU Horizon 2020 Project Newcotiana Grant 760331 and PID2019-108203RB-100 Plan Nacional I+D, Spanish Ministry of Economy and Competitiveness. MV-V was recipient of aGeneralitat Valenciana and Fondo Social Europeo post-doctoral grant. JB-O and SS were recipients of FPI fellowships. CP was recipient of a Santiago Grisolia fellowship (Generalitat Valenciana).Vazquez-Vilar, M.; Garcia-Carpintero, V.; Selma, S.; Bernabé-Orts, JM.; Sánchez-Vicente, J.; Salazar-Sarasua, B.; Ressa, A.... (2021). The GB4.0 Platform, an All-In-One Tool for CRISPR/Cas-Based Multiplex Genome Engineering in Plants. Frontiers in Plant Science. 12:1-14. https://doi.org/10.3389/fpls.2021.6899371141

    Clonal chromosomal mosaicism and loss of chromosome Y in elderly men increase vulnerability for SARS-CoV-2

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    The pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2, COVID-19) had an estimated overall case fatality ratio of 1.38% (pre-vaccination), being 53% higher in males and increasing exponentially with age. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, we found 133 cases (1.42%) with detectable clonal mosaicism for chromosome alterations (mCA) and 226 males (5.08%) with acquired loss of chromosome Y (LOY). Individuals with clonal mosaic events (mCA and/or LOY) showed a 54% increase in the risk of COVID-19 lethality. LOY is associated with transcriptomic biomarkers of immune dysfunction, pro-coagulation activity and cardiovascular risk. Interferon-induced genes involved in the initial immune response to SARS-CoV-2 are also down-regulated in LOY. Thus, mCA and LOY underlie at least part of the sex-biased severity and mortality of COVID-19 in aging patients. Given its potential therapeutic and prognostic relevance, evaluation of clonal mosaicism should be implemented as biomarker of COVID-19 severity in elderly people. Among 9578 individuals diagnosed with COVID-19 in the SCOURGE study, individuals with clonal mosaic events (clonal mosaicism for chromosome alterations and/or loss of chromosome Y) showed an increased risk of COVID-19 lethality
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