12 research outputs found

    MoccaDB - an integrative database for functional, comparative and diversity studies in the Rubiaceae family

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    <p>Abstract</p> <p>Background</p> <p>In the past few years, functional genomics information has been rapidly accumulating on Rubiaceae species and especially on those belonging to the <it>Coffea </it>genus (coffee trees). An increasing number of expressed sequence tag (EST) data and EST- or genomic-derived microsatellite markers have been generated, together with Conserved Ortholog Set (COS) markers. This considerably facilitates comparative genomics or map-based genetic studies through the common use of orthologous loci across different species. Similar genomic information is available for e.g. tomato or potato, members of the Solanaceae family. Since both Rubiaceae and Solanaceae belong to the Euasterids I (lamiids) integration of information on genetic markers would be possible and lead to more efficient analyses and discovery of key loci involved in important traits such as fruit development, quality, and maturation, or adaptation. Our goal was to develop a comprehensive web data source for integrated information on validated orthologous markers in Rubiaceae.</p> <p>Description</p> <p>MoccaDB is an online MySQL-PHP driven relational database that houses annotated and/or mapped microsatellite markers in Rubiaceae. In its current release, the database stores 638 markers that have been defined on 259 ESTs and 379 genomic sequences. Marker information was retrieved from 11 published works, and completed with original data on 132 microsatellite markers validated in our laboratory. DNA sequences were derived from three <it>Coffea </it>species/hybrids. Microsatellite markers were checked for similarity, <it>in vitro </it>tested for cross-amplification and diversity/polymorphism status in up to 38 Rubiaceae species belonging to the Cinchonoideae and Rubioideae subfamilies. Functional annotation was provided and some markers associated with described metabolic pathways were also integrated. Users can search the database for marker, sequence, map or diversity information through multi-option query forms. The retrieved data can be browsed and downloaded, along with protocols used, using a standard web browser. MoccaDB also integrates bioinformatics tools (CMap viewer and local BLAST) and hyperlinks to related external data sources (NCBI GenBank and PubMed, SOL Genomic Network database).</p> <p>Conclusion</p> <p>We believe that MoccaDB will be extremely useful for all researchers working in the areas of comparative and functional genomics and molecular evolution, in general, and population analysis and association mapping of Rubiaceae and Solanaceae species, in particular.</p

    Quel type d’espĂšce trouve-t-on dans la rĂ©gion ? Une base de donnĂ©es de traits bientĂŽt disponible

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    Projet CoForChange: PrĂ©dire les effets des changements globaux sur la biodiversitĂ© dans les forĂȘts du Bassin du Cong

    Climate change would lead to a sharp acceleration of Central African forests dynamics by the end of the century

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    Impacts of climate change on the future dynamics of Central African forests are still largely unknown, despite the acuteness of the expected climate changes and the extent of these forests. The high diversity of species and the potentially equivalent diversity of responses to climate modifications are major difficulties encountered when using predictive models to evaluate these impacts. In this study, we applied a mixture of inhomogeneous matrix models to a long-term experimental site located in M'Baiki forests, in the Central African Republic. This model allows the clustering of tree species into processes-based groups while simultaneously selecting explanatory climate and stand variables at the group-level. Using downscaled outputs of 10. general circulation models (GCM), we projected the future forest dynamics up to the end of the century, under constant climate and Representative Concentration Pathways. 4.5 and. 8.5. Through comparative analyses across GCM versions, we identified tree species meta-groups, which are more adapted than ecological guilds to describe the diversity of tree species dynamics and their responses to climate change. Projections under constant climate were consistent with a forest ageing phenomenon, with a slowdown in tree growth and a reduction of the relative abundance of short-lived pioneers. Projections under climate change showed a general increase in growth, mortality and recruitment. This acceleration in forest dynamics led to a strong natural thinning effect, with different magnitudes across species. These differences caused a compositional shift in favour of long-lived pioneers, at the detriment of shade-bearers. Consistent with other field studies and projections, our results show the importance of elucidating the diversity of tree species responses when considering the general sensitivity of Central African forests dynamics to climate change

    Uso e ocupação do solo em Áreas de Preservação Permanente na microbacia Ribeirão Gustavo, município de Massaranduba, SC

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    The human action has led to a sharp and accelerated environmental degradation of areas of permanent preservation (APP). In this context, the objective of this study was to identify and map the possible use conflicts in APPs of the RibeirĂŁo Gustavo watershed, city of Massaranduba, SC. The analysis of the current use required QuickBird high-resolution satellite imagery with orthorectification from the year 2008, with confirmation of the use classes and field occupancy. The following mapping classes were identified: reforestation, flooded rice, banana, fields, annual crops, subsistence household complex, agroforestry system, in addition to categories based on the CONAMA Resolution number 10 (Brazil, 1993): primary forest and secondary forest at initial, intermediate and advanced stages of regeneration. PPAs were mapped using SIG ArcGIS 9.3, considering the limits set by law (Law 4.771/65 and CONAMA Resolution 303/02). Among the possible categories of APPs foreseen by legislation, the following were identified and mapped in the watershed at the banks of watercourses, buffer of 30 m: springs, buffer of 50 m: hilltops, through the delimitation of the upper third. The predominant land use of the watershed is forest, which represents 66.38% of the study area. APPs represent 660.35 ha, which corresponds to approximately 22.72% of the total area of the RibeirĂŁo Gustavo watershed. Of this total, 80.32% of APPs are covered by primary and secondary forests, showing the high conservation level of the area. In the riparian forest, flooded rice is the culture causing the highest environmental degradation in the watershed.Pages: 6317-632

    Quels botanistes pour le 21 e siĂšcle ?

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    International audienceLes forĂȘts d’Afrique centrale vont subir de profondes modifications liĂ©es au changement climatique ces prochaines dĂ©cennies. Pour que les sociĂ©tĂ©s humaines puissent anticiper ou s’adapter Ă  ces changements, il est nĂ©cessaire de bien comprendre les mĂ©canismes de fonctionnement de ces forĂȘts et d’ĂȘtre Ă  mĂȘme de spatialiser leur variabilitĂ©. A partir d’une sĂ©rie temporelle de quatorze annĂ©es d’images satellites MODIS Ă  250m de rĂ©solution par pixel, nous prĂ©sentons ici une nouvelle carte des forĂȘts d’Afrique centrale. La production de cette carte, basĂ©e sur le comportement phĂ©nologique de la canopĂ©e, reflĂšte l’activitĂ© de la vĂ©gĂ©tation en fonction des saison

    De l’arbre au satellite : comment cartographier la diversitĂ© des forĂȘts tropicales d’Afrique Centrale ?

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    National audienceLes forĂȘts d'Afrique centrale vont subir de profondes modifications liĂ©es au changement climatique ces prochaines dĂ©cennies. Pour que les sociĂ©tĂ©s humaines puissent anticiper ou s'adapter Ă  ces changements, il est nĂ©cessaire de bien comprendre les mĂ©canismes de fonctionnement de ces forĂȘts et d'ĂȘtre Ă  mĂȘme de spatialiser leur variabilitĂ©. A partir d'une sĂ©rie temporelle de quatorze annĂ©es d'images satellites MODIS Ă  250 m de rĂ©solution par pixel, nous prĂ©sentons ici une nouvelle carte des forĂȘts d'Afrique centrale. La production de cette carte, basĂ©e sur le comportement phĂ©nologique de la canopĂ©e, reflĂšte l'activitĂ© de la vĂ©gĂ©tation en fonction des saisons

    Mise en place du systĂšme d'information pour la gestion des donnĂ©es des dispositifs expĂ©rimentaux de l’infrastructure nationale IN-SYLVA France (adaptation des forĂȘts et l’innovation sylvicole).

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    L’infrastructure nationale de recherche IN-SYLVA France rassemble les acteurs français publics et privĂ©s de la recherche forestiĂšre en gĂ©nĂ©tique, sylviculture et des cycles biogĂ©ochimiques (https://www6.inrae.fr/in-sylva-france/). Elle fĂ©dĂšre i) les rĂ©seaux d'expĂ©rimentations in situ tempĂ©rĂ©s et tropicaux gĂ©rĂ©s (5000 essais expĂ©rimentaux sur 4000 ha), ii) les laboratoires analytiques (Ă©cologie fonctionnelle, propriĂ©tĂ©s du bois et gĂ©nomique) ainsi que iii) les ressources numĂ©riques pour la gestion des donnĂ©es et la modĂ©lisation. Un des enjeux majeur de cette infrastructure est fĂ©dĂ©rer les SystĂšmes d'Information (SI) des diffĂ©rentes composantes d’IN-SYLVA France pour le porter Ă  connaissance des ressources et services offerts par l’infrastructure, la structuration de ces services, leur accessibilitĂ© et leur interopĂ©rabilitĂ©. Le projet a permis de construire le cahier des charges du SystĂšme d’Information de IN-SYLVA France, d’évaluer les solutions techniques dĂ©veloppĂ©es pour des projets de mĂȘme nature, d’initier le dĂ©veloppement du portail IN-SYLVA France et de son alimentation, d’élaborer les standards pour les mĂ©tadonnĂ©es et les rĂ©fĂ©rentiels, et enfin de soutenir le dĂ©veloppement des SI des partenaires pour l'alimentation du portail et l'accĂšs aux donnĂ©es. Au-delĂ , le travail conduit pour le dĂ©veloppement du SI a significativement contribuĂ© Ă  renforcer les Ă©changes entre partenaires sur les problĂ©matiques de gestion des donnĂ©es/mĂ©tadonnĂ©es pour leur partage et rĂ©utilisation et Ă  acculturer la communautĂ© IN-SYLVA France Ă  des pratiques de gestion des donnĂ©es vertueuses pour le dĂ©veloppement d’une science plus ouverte. L’infrastructure IN-SYLVA France et le travail rĂ©alisĂ© sur la gestion des connaissances ont Ă©tĂ© prĂ©sentĂ©s au congrĂšs forestier mondial de 2019. Les codes dĂ©veloppĂ©s sont hĂ©bergĂ©s sur la forge ‘forgemia’ de INRAE. le Cahier des charges du SI IN-SYLVA France, ainsi que les rĂ©fĂ©rentiels partagĂ©s pour l’expĂ©rimentation forestiĂšre sylvicole et de gĂ©nĂ©tique sont disponibles sur le site https://data.inrae.fr/dataverse/

    Mise en place du systĂšme d'information pour la gestion des donnĂ©es des dispositifs expĂ©rimentaux de l’infrastructure nationale IN-SYLVA France (adaptation des forĂȘts et l’innovation sylvicole).

    No full text
    L’infrastructure nationale de recherche IN-SYLVA France rassemble les acteurs français publics et privĂ©s de la recherche forestiĂšre en gĂ©nĂ©tique, sylviculture et des cycles biogĂ©ochimiques (https://www6.inrae.fr/in-sylva-france/). Elle fĂ©dĂšre i) les rĂ©seaux d'expĂ©rimentations in situ tempĂ©rĂ©s et tropicaux gĂ©rĂ©s (5000 essais expĂ©rimentaux sur 4000 ha), ii) les laboratoires analytiques (Ă©cologie fonctionnelle, propriĂ©tĂ©s du bois et gĂ©nomique) ainsi que iii) les ressources numĂ©riques pour la gestion des donnĂ©es et la modĂ©lisation. Un des enjeux majeur de cette infrastructure est fĂ©dĂ©rer les SystĂšmes d'Information (SI) des diffĂ©rentes composantes d’IN-SYLVA France pour le porter Ă  connaissance des ressources et services offerts par l’infrastructure, la structuration de ces services, leur accessibilitĂ© et leur interopĂ©rabilitĂ©. Le projet a permis de construire le cahier des charges du SystĂšme d’Information de IN-SYLVA France, d’évaluer les solutions techniques dĂ©veloppĂ©es pour des projets de mĂȘme nature, d’initier le dĂ©veloppement du portail IN-SYLVA France et de son alimentation, d’élaborer les standards pour les mĂ©tadonnĂ©es et les rĂ©fĂ©rentiels, et enfin de soutenir le dĂ©veloppement des SI des partenaires pour l'alimentation du portail et l'accĂšs aux donnĂ©es. Au-delĂ , le travail conduit pour le dĂ©veloppement du SI a significativement contribuĂ© Ă  renforcer les Ă©changes entre partenaires sur les problĂ©matiques de gestion des donnĂ©es/mĂ©tadonnĂ©es pour leur partage et rĂ©utilisation et Ă  acculturer la communautĂ© IN-SYLVA France Ă  des pratiques de gestion des donnĂ©es vertueuses pour le dĂ©veloppement d’une science plus ouverte. L’infrastructure IN-SYLVA France et le travail rĂ©alisĂ© sur la gestion des connaissances ont Ă©tĂ© prĂ©sentĂ©s au congrĂšs forestier mondial de 2019. Les codes dĂ©veloppĂ©s sont hĂ©bergĂ©s sur la forge ‘forgemia’ de INRAE. le Cahier des charges du SI IN-SYLVA France, ainsi que les rĂ©fĂ©rentiels partagĂ©s pour l’expĂ©rimentation forestiĂšre sylvicole et de gĂ©nĂ©tique sont disponibles sur le site https://data.inrae.fr/dataverse/

    Documentation SystĂšme d'Information IN-SYLVA France

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    Ensemble des documents élaborés dans le cadre du développement du SystÚme d'Information (SI) IN-SYLVA France. Cette publication comporte plusieurs document élaboré au cours du projet. (i) in-sylva_cahier_des_charges: cahier des charges pour le développement du SI (format pdf). (ii) in-sylva_standard:description des champs utilisé pour le standard de métadonnées IN-SYLVA (format pdf). (iii) in-sylva_referentiel_interne: référentiel des termes mobilisés par la communauté IN-SYLVA (format SKOS/RDF). (iv)in-sylva_referentiel_externe: référentiel des termes mobilisés au sein du projet IN-SYLVA mais provenant de sources extérieures (format SKOS/RDF)
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