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a platform for quantitative metagenomic profiling of complex ecosystems Nicolas Pons , JeanMichel Batto, Sean Kennedy, Mathieu Almeida, Fouad Boumezbeur, Bouziane Moumen, Pierre Léonard, Emmanuelle Le Chatelier, S. Dusko Ehrlich and Pierre Renault Poster 19 Micalis MetaQuant Platform JouyenJosas

a platform for quantitative metagenomic ... - JOBIM 2010

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a platform for quantitative metagenomic profiling of complex ecosystems

Nicolas Pons, Jean‐Michel Batto, Sean Kennedy, Mathieu Almeida, Fouad Boumezbeur, Bouziane Moumen, Pierre Léonard, 

Emmanuelle Le Chatelier, S. Dusko Ehrlich and Pierre Renault 

Poster 19 Micalis ‐MetaQuant PlatformJouy‐en‐Josas

What is quantitative metagenomic ?

Metabolismreconstruction

Ecosystemreconstruction

Genetic variability

DNA assembyingand/or

external data integration

Mapping and counting

Statistical analysis

METagenomic ExploratOR

Referencefasta

Reads file

corona_liteGRIMA ngs_data_censor

ngs_profile_analyserEcosystem reconstructionCross‐sample comparison

Gene clustering

GenoVAgenetic variability

MetaViewerMetabolism reconstruction

Mappingand qval

file

Mapping Indexing counting Analysis

METEOR data sets

reference_manager sample_manager project_manager

Data managment

iMOMi

NoSQL system

SQL system

• Projects :– Micro‐Obes– BB‐allergy– Food‐Microbiomes– Metaflora– Genome mixes

• ~300 samples• ~500 Gbases• >100000 files• >10 To

T0 W6 W12

1200 cal/d strict diet Stabilization

Follow the microbiota dynamic and identify signatures of obesityand nutritional transition in the intestinal microbiote

• DNA sequencing (SOLiD) of 215 faecal samples of 49 obese individuals sequenced at 3 differents time‐points (t0, w6, w12 and extra‐time)

300 Gbases sequenced

• Read projection against the MetaHIT gene catalog (Qin et al., 2010)(3.3 millions genes)

150 Gbases projected

• Gene clustering and bacteria composition determination

Micro‐Obes project

Micro‐Obes project

0 week 1 week 6 weeks 12 weeks

Strict diet Maintenance

Dynamic of microbiota during the diet

Important variation of gene composition during the first part of the dietMore stable composition in the second part (stabilization)

Different dynamic profiles observedAssociation with clinical data (ongoing work)

Team « Bactéries Alimentaires et Commensales »

BioinformaticEmmanuelle Le ChatellierMathieu AlmeidaFouad Boumebzeur

BiologyChristine DelormeEric GuédonSéverine LayecCéline GautierNicolas Sanchez

Pierre Renault

MetaQuantDusko EhrlichSean KennedyNicolas PonsNathalie GalleronBenoît Quinquis

Team « Informatique »Jean‐Michel BattoPierre LéonardBouziane Moumen

http://www.netvibes.com/metahit#Live_News

http://twitter.com/metagenomics

http://paper.li/metahit/microbiomics

Micro‐ObesFood‐Microbiomes