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dc.contributor.authorFrazier, Taylor P.en_US
dc.contributor.authorPalmer, Nathan A.en_US
dc.contributor.authorXie, Fuliangen_US
dc.contributor.authorTobias, Christian M.en_US
dc.contributor.authorDonze-Reiner, Teresa J.en_US
dc.contributor.authorBombarely, Aurelianoen_US
dc.contributor.authorChilds, Kevin L.en_US
dc.contributor.authorShu, Shengqiangen_US
dc.contributor.authorJenkins, Jerry W.en_US
dc.contributor.authorSchmutz, Jeremyen_US
dc.contributor.authorZhang, Baohongen_US
dc.contributor.authorSarath, Gautamen_US
dc.contributor.authorZhao, Bingyuen_US
dc.description.abstractBACKGROUND: Switchgrass (Panicum virgatum L.) is a warm-season perennial grass that can be used as a second generation bioenergy crop. However, foliar fungal pathogens, like switchgrass rust, have the potential to significantly reduce switchgrass biomass yield. Despite its importance as a prominent bioenergy crop, a genome-wide comprehensive analysis of NB-LRR disease resistance genes has yet to be performed in switchgrass. RESULTS: In this study, we used a homology-based computational approach to identify 1011 potential NB-LRR resistance gene homologs (RGHs) in the switchgrass genome (v 1.1). In addition, we identified 40 RGHs that potentially contain unique domains including major sperm protein domain, jacalin-like binding domain, calmodulin-like binding, and thioredoxin. RNA-sequencing analysis of leaf tissue from 'Alamo', a rust-resistant switchgrass cultivar, and 'Dacotah', a rust-susceptible switchgrass cultivar, identified 2634 high quality variants in the RGHs between the two cultivars. RNA-sequencing data from field-grown cultivar 'Summer' plants indicated that the expression of some of these RGHs was developmentally regulated. CONCLUSIONS: Our results provide useful insight into the molecular structure, distribution, and expression patterns of members of the NB-LRR gene family in switchgrass. These results also provide a foundation for future work aimed at elucidating the molecular mechanisms underlying disease resistance in this important bioenergy crop.en_US
dc.format.extent892 - ? page(s)en_US
dc.rightsCreative Commons Attribution 4.0 International*
dc.subjectDisease resistanceen_US
dc.subjectGene expressionen_US
dc.subjectPanicum virgatum (switchgrass)en_US
dc.titleIdentification, characterization, and gene expression analysis of nucleotide binding site (NB)-type resistance gene homologues in switchgrassen_US
dc.typeArticle - Refereeden_US
dc.description.versionPublished online (Publication status)en_US
dc.rights.holderThe Author(s).
dc.contributor.departmentSchool of Plant and Environmental Sciencesen_US
dc.title.serialBMC Genomicsen_US
pubs.organisational-group/Virginia Tech
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/CALS T&R Faculty
pubs.organisational-group/Virginia Tech/Agriculture & Life Sciences/Horticulture
pubs.organisational-group/Virginia Tech/All T&R Faculty

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Creative Commons Attribution 4.0 International
License: Creative Commons Attribution 4.0 International