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Montreal Bioinformatics Users Group (MonBUG) » archive for 9 September 2009

 Mads Kaern

Download seminar posterPDF File

Talk Title :
Reconstructing gene networks by epistatic analysis of phenotype and expression data

Date / Time / Location:
Thursday October 8th, 2009 - 6:00 pm
McGill University
Room 232, Leacock Building
855 Sherbrooke Street West

Affiliation :
Ottawa Institute of Systems Biology

URL
Mads Kaern

Abstract :
One the most successful methods to map genetic networks and pathways predates modern genomics by nearly a century. This method, epistatic analysis, traditionally involves observing the phenotypic impact of mutating two different genes individually and in combination. This talk will introduce the basic concepts involved and discuss recent advances emphasizing the inference of transcriptional regulatory networks. In one study, we investigated if conventional epistatic analysis might be used to highlight interactions within the network regulating the transcriptional response of yeast to DNA damage, and developed a method to specifically identify dynamically modulated functional relationships. Somewhat surprisingly, the network derived from phenotypic data has only a modest overlap with that inferred from microarray data. In a second study, we directly compared epistatic analysis based on phenotypic data and marker gene expression. This analysis demonstrates that the two approaches provide complementary information. While conventional analysis correctly infers the order of genes in metabolic pathways, expression-based analysis specifically highlight regulatory hierarchies. Moreover, combining the two methods allows for a nearly complete network reconstruction with a negligible false discovery rate.

 






 Bioinformatics Symposium 2009

MonBUG 2nd year launch symposium
- Thursday September 3rd, 2009

In order to start it’s activities on the right foot, MonBUG has decided the first activity of it’s second season would be a one-day symposium featuring invited and local speakers as well as student speakers selected on the basis of the quality of their presented posters

Download the symposium posterPDF File

Here is the current schedule for the meeting:

8h00-8h30 Set-up posters
8h30-8h45 Welcome
Tarik Möröy
President and Scientific Director

Institut de recherches cliniques de Montréal (IRCM)

8h45-9h00 Opening words
Ken Dewar
Acting Scientific Director
McGill University and Génome Québec Innovation Centre

Keynote I

9h00-10h00 Fulfilling the Promise of a Sequenced Human Genome
Eric Green
Director, NIH Intramural Sequencing Center
10h00-10h30 Coffee break

Session I

Chair: Mathieu Blanchette

10h30-11h00 Discovering INDEL and Copy Number Genomic Variation from Paired Reads
Michael Brudno
University of Toronto
11h00-11h30 Genome-wide Discovery of Trancript Isoform Variants
Jacek Majewski
McGill University
11h30-12h00 The Mammalian Early Development: Comparing Apples and Oranges
Claude Robert
Université Laval
12h00-12h15 Sequence and Structural Variation in a Human Genome
Heather Peckham
ABI sponsored scientific presentation
12h15-12h30 GPU Computing Implementation of a Quaternary Tree for Fast Identification of Genes and Genomes in High Throughput Sequence Analysis
Fouad Boumezbeur
Sciences de la vie — Université PARIS VII

Poster Session I

12h30-14h00 Lunch and concurrent poster session

Session II

Chair: Raphaël Gottardo

14h00-14h30 Modeling Structural Ensembles of Transmembrane Proteins
Jérome Waldispühl
Massachusetts Institute of Technology
14h30-15h00 Proteomics and Lipidomics Studies of the Brain
Daniel Figeys
University of Ottawa
15h00-15h30 Informatics of Cinematics; Quantifying Mitosis in Living Cells
Paul Maddox
IRIC / Université de Montréal
15h30-15h45 Using Next-Generation Genome Sequencing Technologies to Examine Genome Change and Virulence in Malaria Parasites
Martine M. Zilversmit
CHU Ste-Justine — Université de Montréal
15h45-16h15 Coffee break

Keynote II

16h15-17h15 Discovering Genomic Variation in Cancer Genomes
Elaine Mardis
Co-Director, WUSTL Genome Sequencing Center
17h15-17h30 Closing comments
Speaker: to be announced

Poster Session II

17h30-… Wine and cheese and concurrent poster session
18h30-19h00 Take down posters

Proud symposium sponsors:


Symposium sponsors