JSM Preliminary Online Program
This is the preliminary program for the 2009 Joint Statistical Meetings in Washington, DC.

The views expressed here are those of the individual authors
and not necessarily those of the ASA or its board, officers, or staff.


Back to main JSM 2009 Program page




Activity Number: 225
Type: Contributed
Date/Time: Monday, August 3, 2009 : 2:00 PM to 3:50 PM
Sponsor: Section on Bayesian Statistical Science
Abstract - #305542
Title: Seeking Higher-Order Chromatin Domains in Mouse Stem Cells via Hidden Markov Models
Author(s): Jessica L. Larson*+ and Guocheng Yuan
Companies: Harvard University and Harvard University
Address: , Boston, MA, 02115,
Keywords: ChIP-seq ; hidden Markov models ; histone ; stem cells ; hierarchical clustering ; genetic domains
Abstract:

Neighboring genes, although not always involved in the same pathways, are still similarly regulated at the level of transcription via various histone modifications. We seek to develop a genome wide map of these higher-order (i.e. multi-gene) domains through a novel analysis of ChIP-seq histone modification data in mouse neural progenitor cells (NPCs). As a starting point, we have described the HOXa gene cluster with five modifications. To determine domains we characterized these five sets of ChIP-seq data using hierarchical clustering and heat-map visualization. With HMM algorithms, we were then able to determine the most probable domain status of each gene. We found evidence of multi-gene domains, characterized by similar patterns in these five modifications. As we expand our study, we will provide insight into the structure, organization and regulation of the mouse genome.


  • The address information is for the authors that have a + after their name.
  • Authors who are presenting talks have a * after their name.

Back to the full JSM 2009 program


JSM 2009 For information, contact jsm@amstat.org or phone (888) 231-3473. If you have questions about the Continuing Education program, please contact the Education Department.
Revised September, 2008