Dataset Information


Gene expression in whole-roots of a Populus trichocarpa and Populus deltoides pseudo-backcross population

ABSTRACT: A microarray analysis of whole-genome gene expression in roots was carried out in a (Populus trichocarpa X Populus deltoides) X Populus deltoides pseudo-backcross pedigree. Genetic variation in gene expression was quantified for 55,793 predicted gene models based on a single probe per gene. Resultant data contributed to the analysis of the genetic architecture of gene expression in roots of Populus. Data include one biological replicate of 163 individuals segregating from a pseudo-backcross pedigree of (Populus trichocarpa X Populus deltoides) X Populus deltoides analyzed for gene expression (GE) in roots using one probe per gene for 55793 independent gene models (probes E_POPLARSxxxxxPxxxxx) and single feature sequence polymorphism (SFP) using one probe per gene for 12084 independent gene models (probes G_POPLARSxxxxxPxxxxx). GE and SFP probes were selected from 6-7 probes per gene previously tested in a pilot study of the two parent trees of the cross (Populus deltoides X Populus trichocarpa)

ORGANISM(S): Populus trichocarpa x Populus deltoides  

SUBMITTER: Matias Kirst  

PROVIDER: E-GEOD-20118 | ArrayExpress | 2010-06-24



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Diversification in the genetic architecture of gene expression and transcriptional networks in organ differentiation of Populus.

Drost Derek R DR   Benedict Catherine I CI   Berg Arthur A   Novaes Evandro E   Novaes Carolina R D B CR   Yu Qibin Q   Dervinis Christopher C   Maia Jessica M JM   Yap John J   Miles Brianna B   Kirst Matias M  

Proceedings of the National Academy of Sciences of the United States of America 20100419 18

A fundamental goal of systems biology is to identify genetic elements that contribute to complex phenotypes and to understand how they interact in networks predictive of system response to genetic variation. Few studies in plants have developed such networks, and none have examined their conservation among functionally specialized organs. Here we used genetical genomics in an interspecific hybrid population of the model hardwood plant Populus to uncover transcriptional networks in xylem, leaves,  ...[more]

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