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    Genome-wide expression analysis offers new insights into the origin and evolution of Physcomitrella patens stress response

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    Type
    Article
    Authors
    Khraiwesh, Basel
    Qudeimat, Enas
    Thimma, Manjula
    Chaiboonchoe, Amphun
    Jijakli, Kenan
    Alzahmi, Amnah
    Arnoux, Marc
    Salehi-Ashtiani, Kourosh
    KAUST Department
    Biological and Environmental Science and Engineering (BESE) Division
    Center for Desert Agriculture
    Date
    2015-11-30
    Online Publication Date
    2015-11-30
    Print Publication Date
    2015-12
    Permanent link to this record
    http://hdl.handle.net/10754/583875
    
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    Abstract
    Changes in the environment, such as those caused by climate change, can exert stress on plant growth, diversity and ultimately global food security. Thus, focused efforts to fully understand plant response to stress are urgently needed in order to develop strategies to cope with the effects of climate change. Because Physcomitrella patens holds a key evolutionary position bridging the gap between green algae and higher plants, and because it exhibits a well-developed stress tolerance, it is an excellent model for such exploration. Here, we have used Physcomitrella patens to study genome-wide responses to abiotic stress through transcriptomic analysis by a high-throughput sequencing platform. We report a comprehensive analysis of transcriptome dynamics, defining profiles of elicited gene regulation responses to abiotic stress-associated hormone Abscisic Acid (ABA), cold, drought, and salt treatments. We identified more than 20,000 genes expressed under each aforementioned stress treatments, of which 9,668 display differential expression in response to stress. The comparison of Physcomitrella patens stress regulated genes with unicellular algae, vascular and flowering plants revealed genomic delineation concomitant with the evolutionary movement to land, including a general gene family complexity and loss of genes associated with different functional groups.
    Citation
    Genome-wide expression analysis offers new insights into the origin and evolution of Physcomitrella patens stress response 2015, 5:17434 Scientific Reports
    Publisher
    Springer Nature
    Journal
    Scientific Reports
    DOI
    10.1038/srep17434
    PubMed ID
    26615914
    Additional Links
    http://www.nature.com/articles/srep17434
    ae974a485f413a2113503eed53cd6c53
    10.1038/srep17434
    Scopus Count
    Collections
    Articles; Biological and Environmental Science and Engineering (BESE) Division; Center for Desert Agriculture

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