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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/18834

Title: Clone History Shapes the Populus Drought Transcriptome
Authors: Raj, Sherosha Joan Sharmila
Advisor: Campbell, Malcolm M.
Department: Cell and Systems Biology
Keywords: clone
clonal populations
clonal variation
transcriptome
gene expression
microarray
genomics
transcriptomics
plants
trees
water relations
drought
clonal differences
epigenetics
somatic mutations
somaclonal variation
clonal variation
genetically identical individuals
intra-individual variation
Issue Date: 15-Feb-2010
Abstract: The genus Populus is ideally suited to investigate questions related to the interplay between an individual’s environmental history and its capacity to respond to external stimuli. In order to dissect the influence of individual history on subsequent plant responses, transcriptome level changes due to water deficit were assessed in clonal populations of Populus hybrids. Results indicate variation in the drought transcriptomes of genetically identical clones originating from different locations can be shaped by the individual history of the clone. Additionally, yearly variations in drought transcriptome patterns showed specific trends associated with a clonal population that were not related to an unknown influence at a location, nor with the biological source of cuttings. Despite these sources of transcriptome variation, a common shared response was identified across all populations. The findings hint at the influence of the environment and epigenetic factors in the dynamic regulation of transcriptome level responses in clonal individuals.
URI: http://hdl.handle.net/1807/18834
Appears in Collections:Master
Department of Cell and Systems Biology - Master theses

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