Descripción del proyecto
Arquitectura genética funcional de tejidos complejos «in vivo»
En el proyecto DECODE, financiado con fondos europeos, se emplearán métodos punteros de genética de sistemas para estudiar los factores moleculares de la especificación del destino celular en «Arabidopsis thaliana» y «Drosophila melanogaster», como modelos vegetal y animal, para descifrar «in vivo» redes genéticas dependientes del contexto. Los socios del proyecto, con experiencia en genética de organismos modelo y fenotipado celular, genómica de célula única, estadística y bioinformática, crearán mapas genéticos funcionales utilizando modificaciones de inactivación genética «in vivo» a través de CRISPR/Cas9, junto la imagenología y el análisis de expresión de célula única. Los miles de genes inactivados condicionales y varios millones de perfiles transcriptómicos de célula única, así como las imágenes de alta resolución, permitirán crear el mapa de modificaciones de célula única más grande de los dos organismos modelo y proporcionarán conocimientos fundamentales sobre la arquitectura genética de tejidos complejos.
Objetivo
The evolutionary success of multicellular organisms is based on the division of labor between cells. While some of the molecular determinants for cell fate specification have been identified, a fundamental understanding of which genetic activities are required in each cell of a developing tissue is still outstanding. The DECODE project will develop and apply leading-edge system genetics methods to Arabidopsis and Drosophila, two major model systems from the plant and animal kingdoms to decode context-dependent genetic networks in vivo. To achieve this, DECODE will bring together experimental and theoretical groups with complementary expertise in model organism genetics and cellular phenotyping, single-cell genomics, statistics and computational biology. Building on our combined expertise, we will create functional genetic maps using conditional CRISPR/Cas9-based single- and higher order knockout perturbations in vivo combined with single-cell expression profiling and imaging. Coupled with powerful computational analysis, this project will not only define, predict and rigorously test the unique genetic repertoire of each cell, but also unravel how genetic networks adapt their topology and function across cell types and external stimuli. With more than thousand conditional knockouts, characterized by several million single-cell transcriptome profiles and high-resolution imaging this project will create the largest single-cell perturbation map in any model organism and will provide fundamental insights into the genetic architecture of complex tissues. Analyzing two tissues with divergent organization and regulatory repertoire will enable us to uncover general principles in the genetic circuits controlling context
dependent cell behavior. Consequently, we expect that the DECODE project in model organisms will lay the conceptual and methodological foundation for perturbation-based functional atlases in other tissues or species.
Ámbito científico
Palabras clave
Programa(s)
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Régimen de financiación
ERC-SyG - Synergy grantInstitución de acogida
69120 Heidelberg
Alemania