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dc.contributorVirginia Tech. Department of Horticultureen_US
dc.contributorVirginia Tech. Department of Biological Systems Engineeringen_US
dc.contributorVirginia Tech. Department of Plant Pathology and Physiologyen_US
dc.contributorVirginia Tech. Department of Biochemistryen_US
dc.contributor.authorXu, Binen_US
dc.contributor.authorSathitsuksanoh, Noppadonen_US
dc.contributor.authorTang, Yuhongen_US
dc.contributor.authorUdvardi, Michael K.en_US
dc.contributor.authorZhang, Ji-Yien_US
dc.contributor.authorShen, Zhengxingen_US
dc.contributor.authorBalota, Mariaen_US
dc.contributor.authorHarich, Kimen_US
dc.contributor.authorZhang, Y. H. Percivalen_US
dc.contributor.authorZhao, Bingyuen_US
dc.date.accessioned2015-10-01T23:24:47Z
dc.date.available2015-10-01T23:24:47Z
dc.date.issued2012-12-26
dc.identifier.citationXu, B., Sathitsuksanoh, N., Tang, Y., Udvardi, M. K., Zhang, J.-Y., Shen, Z., Balota, M., Harich, K., Zhang, P. Y. H., & Zhao, B. (2012). Overexpression of Atlov1 in Switchgrass Alters Plant Architecture, Lignin Content, and Flowering Time. Plos One, 7(12),
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/10919/56679
dc.description.abstractBackground: Switchgrass (Panicum virgatum L.) is a prime candidate crop for biofuel feedstock production in the United States. As it is a self-incompatible polyploid perennial species, breeding elite and stable switchgrass cultivars with traditional breeding methods is very challenging. Translational genomics may contribute significantly to the genetic improvement of switchgrass, especially for the incorporation of elite traits that are absent in natural switchgrass populations. Methodology/Principal Findings: In this study, we constitutively expressed an Arabidopsis NAC transcriptional factor gene, LONG VEGETATIVE PHASE ONE (AtLOV1), in switchgrass. Overexpression of AtLOV1 in switchgrass caused the plants to have a smaller leaf angle by changing the morphology and organization of epidermal cells in the leaf collar region. Also, overexpression of AtLOV1 altered the lignin content and the monolignol composition of cell walls, and caused delayed flowering time. Global gene-expression analysis of the transgenic plants revealed an array of responding genes with predicted functions in plant development, cell wall biosynthesis, and flowering. Conclusions/Significance: To our knowledge, this is the first report of a single ectopically expressed transcription factor altering the leaf angle, cell wall composition, and flowering time of switchgrass, therefore demonstrating the potential advantage of translational genomics for the genetic improvement of this crop.
dc.description.sponsorshipU.S. Department of Energy
dc.description.sponsorshipVirginia Polytechnic and State University
dc.description.sponsorshipVirginia Polytechnic Institute and State University. Institute for Critical Technology and Applied Science
dc.description.sponsorshipVirginia Polytechnic Institute and State University. College of Agriculture and Life Sciences. Biodesign and Bioprocessing Research Center
dc.description.sponsorshipVirginia Agricultural Experimental Station
dc.description.sponsorshipU.S. Department of Energy
dc.description.sponsorshipBioEnergy Science Center (U.S.)
dc.description.sponsorshipDE-FG02-08ER64629
dc.description.sponsorshipVA135872
dc.format.extent11 pages
dc.format.mimetypeapplication/pdfen_US
dc.language.isoen_US
dc.subjectArabidopsis-thalianaen_US
dc.subjectBioenergy productionen_US
dc.subjectBiofuel productionen_US
dc.subjectBiomass productionen_US
dc.subjectFermentable sugar yieldsen_US
dc.subjectGene encodesen_US
dc.subjectPanicum-virgatumen_US
dc.subjectTranscription-factoren_US
dc.subjectTranslational genomicsen_US
dc.subjectZinc-finger proteinen_US
dc.titleOverexpression of AtLOV1 in Switchgrass Alters Plant Architecture, Lignin Content, and Flowering Timeen_US
dc.typeArticle - Refereed
dc.title.serialPloS One
dc.identifier.doihttps://doi.org/10.1371/journal.pone.0047399
dc.identifier.volume7
dc.identifier.issue12
dc.type.dcmitypeTexten_US


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