Page Banner

United States Department of Agriculture

Agricultural Research Service

Related Topics

Christian Mark Tobias
Crop Improvement and Genetics Research
General Biological Science

Phone: (510) 559-6172
Fax: (510) 559-5818
Room 2101

800 BUCHANAN ST
ALBANY , CA 94710

Projects
Genetic Improvement of Tallgrass Prairie Species for Bioenergy
Appropriated (D)
  Accession Number: 429806

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Generation of Neo Octaploid Switchgrass -
Yoon, S., Blumwald, E., Mitchell, R., Gautam, S., Palmer, N., Edme, S., Hernlem, B.J., Aucar, S., Tobias, C.M. 2016. Generation of Neo Octaploid Switchgrass. Meeting Abstract. 5th Pan-American Congress on Plants and BioEnergy, Santa Fe, NM, August 4-7, 2016.
Dedicated herbaceous biomass feedstock genetics and development -
Anderson, W.F., Sarath, G., Edme, S.J., Casler, M.D., Mitchell, R., Tobias, C.M., Hale, A.L., Sattler, S.E., Knoll, J.E. 2016. Dedicated herbaceous biomass feedstock genetics and development. BioEnergy Research. 9:399-411.
GrainGenes: Changing Times, Changing Databases, Digital Evolution. Reprint Icon -
Tobias, C.M., Lazo, G.R., Gu, Y.Q., Matthews, D.E. 2015. GrainGenes: Changing Times, Changing Databases, Digital Evolution. Meeting Abstract. scisoc.confex.com/scisoc/2015am/webprogram/Paper94726.html.
QTLs for Biomass and Developmental Traits in Switchgrass (Panicum virgatum) -
Lowry, D., Taylor, S., Bonnette, J., Aspinwall, M., Asmus, A., Keitt, T., Tobias, C.M., Juenger, T. 2015. QTLs for Biomass and Developmental Traits in Switchgrass (Panicum virgatum). BioEnergy Research. doi: 10.1007/s12155-015-9629-7.
High-density SNP linkage map of lowland Panicum virgatum L. (switchgrass) using genotyping by sequencing -
Fiedler, J.D., Lanzatella-Craig, C., Okada, M., Jenkins, J., Schmutz, J., Tobias, C.M. 2015. High-density SNP linkage map of lowland Panicum virgatum L. (switchgrass) using genotyping by sequencing. The Plant Genome. doi: 10.3835/plantgenome2014.10.0065.
Switchgrass (Panicum virgatum L) flag leaf transcriptomes reveal molecular signatures of leaf development, senescence, and mineral dynamics -
Contrasting metabolism in perenniating structures of upland and lowland switchgrass plants late in the growing season Reprint Icon -
Palmer, N.A., Saathoff, A.J., Tobias, C.M., Twigg, P., Xia, Y., Vogel, K.P., Madhavan, S., Sattler, S.E., Sarath, G. 2014. Contrasting metabolism in perenniating structures of upland and lowland switchgrass plants late in the growing season. PLoS One. 9/1-11.
Comparative relationships and chromosome evolution in switchgrass (Panicum virgatum) and its genomic model, foxtail millet (Setaria italica) -
Daverdin, G., Bahri, B.A., Wu, X., Serba, D.D., Tobias, C.M., Saha, M.C., Devos, K.M. 2015. Comparative relationships and chromosome evolution in switchgrass (Panicum virgatum) and its genomic model, foxtail millet (Setaria italica). BioEnergy Research. 8:137-151.
Genetic Linkage Mapping and Segregation Distortion in a Three-Generation Four-Founder Population of Panicum vigatum (L.) -
Li, G., Serba, D.D., Saha, M.C., Bouton, J.H., Lanzatella-Craig, C., Tobias, C.M. 2014. Genetic Linkage Mapping and Segregation Distortion in a Three-Generation Four-Founder Population of Panicum vigatum (L.). Genes, Genomes, and Genomics. DOI: 10.1534/g3.113.010165.
Global changes in mineral transporters in tetraploid switchgrasses (Panicum virgatum L.) Reprint Icon -
Palmer, N.A., Saathoff, A., Donze-Reiner, T., Waters, B., Heng-Moss, T., Twigg, P., Tobias, C.M., Sarath, G. 2014. Global changes in mineral transporters in tetraploid switchgrasses (Panicum virgatum L.). Frontiers in Plant Science. 4:1-12.
A statistical model for QTL mapping in polysomic autotetraploids underlying double reduction -
Xu, F., Lyu, Y., Tong, C., Wu, W., Zhu, X., Yin, D., Yan, Q., Zhang, J., Pang, X., Tobias, C.M., Wu, R. 2013. A statistical model for QTL mapping in polysomic autotetraploids underlying double reduction. Briefings in Bioinformatics. DOI: 10.1093/bib/bbt073.
Towards uncovering the roles of switchgrass peroxidases in plant processes Reprint Icon -
Saathoff, A.J., Donze, T., Palmer, N.A., Bradshaw, J., Heng-Moss, T., Twigg, P., Tobias, C., Lagrimini, M., Sarath, G. 2013. Towards uncovering the roles of switchgrass peroxidases in plant processes. Frontiers in Plant Biotechnology. 4:1-12. doi 10.3389/fpls.2013.00202.
Abolishing activity against ascorbate in a cytosolic ascorbate peroxidase from switchgrass Reprint Icon -
Kovacs, F., Sarath, G., Woodworth, K., Twigg, P., Tobias, C.M. 2013. Abolishing activity against ascorbate in a cytosolic ascorbate peroxidase from switchgrass. Phytochemistry. doi 10.1016/j.phytochem.2013.05.016.
Comparative analysis of tandem repeats from hundreds of species reveals unique insights into centromere evolution -
Melters, D.P., Bradnan, K., Young, H., Telis, N., May, M., Ruby, G.J., Sebra, R., Peluso, P., Eid, J., Rank, D., Garcia, J., Derisi, J., Smith, T.P., Tobias, C.M., Ross-Ibarra, J., Korf, I., Chan-Simon, W. 2013. Comparative analysis of tandem repeats from hundreds of species reveals unique insights into centromere evolution. Genome Biology. doi:10.1186/gb-2013-14-1-r10.
Comparative analysis of tandem repeats from hundreds of species reveals unique insights into centromere evolution -
Melters, D.P., Bradnam, K.R., Young, H.P., Telis, N., May, M.R., Ruby, J., Sebra, R., Peluso, P., Eid, J., Rank, D., Garcia, J., Derisi, J.L., Smith, T.P., Tobias, C.M., Ross-Ibarra, J., Korf, I., Chan, S.W. 2013. Comparative analysis of tandem repeats from hundreds of species reveals unique insights into centromere evolution. Genome Biology. 14(1):R10. doi:10.1186/gb-2013-14-1-r10.
Switchgrass Genomics -
Tobias, C.M. 2013. Switchgrass Genomics. Bioenergy Feedstocks: Breeding and Genetics. 1:33-48.
SNP discovery with EST and NextGen sequencing in switchgrass (panicum virgatum L.) Reprint Icon -
Ersoz, E.S., Wright, M.H., Pangilinan, J.L., Sheehan, M.J., Tobias, C.M., Casler, M.D., Buckler IV, E.S., Costich, D. 2012. SNP discovery with EST and NextGen sequencing in switchgrass (panicum virgatum L.). PLoS One. 7(9):e44112.
A multivalent three-point linkage analysis model of autotetraploids -
Lu, Y., Yang, X., Tong, C., Li, X., Feng, S., Wang, Z., Pang, X., Wang, Y., Wang, N., Tobias, C.M., Wu, R. 2012. A multivalent three-point linkage analysis model of autotetraploids. Briefings in Bioinformatics. doi:10.1093/bib/bbs051.
Karyotype variation is indicative of subgenomic and ecotypic differentiation in switchgrass -
Young, H., Sarath, G., Tobias, C.M. 2012. Karyotype variation is indicative of subgenomic and ecotypic differentiation in switchgrass. Biomed Central (BMC) Plant Biology. 12:117.
Switchgrass PviCAD1: Understanding residues important for substrate preferences and activity -
A unifying framework for bivalent multilocus linkage analysis of allotetraploids -
Yang, X., Lu, Y., Pang, X., Tong, C., Wang, Z., Li, X., Feng, S., Tobias, C.M., Wu, R. 2012. A unifying framework for bivalent multilocus linkage analysis of allotetraploids. Briefings in Bioinformatics. 14:96-108.
Next generation sequencing of crown and rhizome transcriptome from an upland, tetraploid switchgrass Reprint Icon -
Palmer, N.A., Saathoff, A.J., Kim, J., Benson, A., Tobias, C.M., Twigg, P., Vogel, K.P., Madhavan, S., Sarath, G. 2012. Next generation sequencing of crown and rhizome transcriptome from an upland, tetraploid switchgrass. BioEnergy Research. 5:649-661. DOI 10.1007/s12155-011-9171-1.
The switchgrass genome: tools and strategies Reprint Icon -
Casler, M.D., Tobias, C.M., Kaeppler, S.M., Buell, R., Wang, Z., Cao, P., Ronald, P. 2011. The switchgrass genome: tools and strategies. The Plant Genome. 4:273-282.
Chloroplast genome variation in upland and lowland switchgrass Reprint Icon -
Young, H.A., Lanzatella-Craig, C., Sarath, G., Tobias, C.M. 2011. Chloroplast genome variation in upland and lowland switchgrass. PLoS One. 6(8): e23980. Available: http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0023980.
DOWNREGULATION OF CINNAMYL-ALCOHOL DEHYDROGENASE IN SWITCHGRASS BY RNA SILENCING RESULTS IN ENHANCED GLUCOSE RELEASE AFTER CELLULASE TREATMENT -
Saathoff, A.J., Sarath, G., Chow, E.K., Dien, B.S., Tobias, C.M. 2011. Downregulation of cinnamyl-alcohol dehydrogenase in switchgrass by RNA silencing results in enhanced glucose release after cellulase treatment. PLoS One. 6(1):e16416. DOI: 10.1371/journal.pone.0016416.
EM Algorithm for Mapping Quantitative Trait Loci in Multivalent Tetraploids -
Li, J., Das, K., Fu, G., Lie, Y., Tobias, C.M., Wu, R. 2010. EM Algorithm for mapping quantitative trait loci in multivalent tetraploids. International Journal of Plant Genomics. Volume 2010 (2010), Article ID 216547. Available: http://www.hindawi.com/journals/ijpg/2010/216547/.
Hierarchical classification of switchgrass using SSR and chloroplast sequences: ecotypes, ploidies, gene pools, and cultivars Reprint Icon -
Zalapa, J., Price, D., Kaeppler, S., Tobias, C.M., Okada, M., Casler, M.D. 2010. Hierarchical classification of switchgrass using SSR and chloroplast sequences: ecotypes, ploidies, gene pools, and cultivars. Theoretical and Applied Genetics. 122:805-817.
Single-locus EST-SSR markers for characterization of population genetic diversity and structure across ploidy levels in switchgrass (Panicum virgatum L.) -
Switchgrass contains two cinnamyl alcohol dehydrogenases involved in lignin formation Reprint Icon -
Saathoff, A.J., Tobias, C.M., Sattler, S.E., Haas, E.E., Twigg, P., Sarath, G. 2011. Switchgrass contains two cinnamyl alcohol dehydrogenases involved in lignin formation. BioEnergy Research. 4(2):120-133.
Biochemical and Genetic Characterization of Three Switchgrass CADs -
Saathoff, A.J., Tobias, C.M., Sattler, S.E., Haas, E.E., Twigg, P., Sarath, G. 2010. Biochemical and Genetic Characterization of Three Switchgrass CADs. Abstract only - presented at Biotechnology for Fuels and Chemicals Symposium Proceedings in Clearwater, FL, April 19-22, 2010. Not published elsewhere.
Discovering Traits Controlling Winter-hardiness and Spring Regrowth in Diverse Switchgrass Germplasm -
Sarath, G., Vogel, K.P., Tobias, C.M., Soundararajan, M., Twigg, P., Saathoff, A.J., Okada, M. 2010. Discovering Traits Controlling Winter-hardiness and Spring Regrowth in Diverse Switchgrass Germplasm. Abstract presented at Biotechnology for Fuels and Chemicals Symposium Proceedings April 19-22, 2010 in Clearwater, FL. Not published anywhere else.
COMPLETE SWITCHGRASS GENETIC MAPS REVEAL SUBGENOME COLLINEARITY, PREFERENTIAL PAIRING, AND MULTILOCUS INTERACTIONS -
Okada, M., Lanzatella-Craig, C., Saha, M., Bouton, J., Wu, R., Tobias, C.M. 2010. Complete Switchgrass Genetic Maps Reveal Subgenome Collinearity, Preferential Pairing and Multilocus Interactions. Genetics. 185:745-760.
EST-SSR Markers Discriminate Switchgrass Ecotypes Reprint Icon -
Zalapa, J., Casler, M.D., Kaeppler, S., De Leon, N., Tobias, C.M. 2010. EST-SSR Markers Discriminate Switchgrass Ecotypes. 2010 Genomic Science Contractor-Grantee and Knowledgebase Workshop. Available: www.orau.gov/gtl2010/postedabstracts.htm
Dihaploid stocks for switchgrass isolated by a screening approach -
Young, H.A., Hernlem, B.J., Anderton, A.L., Lanzatella-Craig, C., Tobias, C.M. 2010. Dihaploid stocks for switchgrass isolated by a screening approach. BioEnergy Research. 3:305-313.
An SSR-Based Genetic Linkage Map of the Model Grass Brachypodium distachyon Reprint Icon -
Garvin, D.F., Mckenzie, N., Vogel, J.P., Mockler, T.C., Blankenheim, Z., Wright, J., Huo, N., Cheema, J.J., Dicks, J., Hayden, D.M., Gu, Y.Q., Tobias, C.M., Chang, J.H., Chu, A., Trick, M., Michael, T.P., Bevan, M.W., Snape, J.W. 2010. An SSR-Based Genetic Linkage Map of the Model Grass Brachypodium distachyon. Genome. 53(1):1-13.
A GENOME MAY REDUCE YOUR CARBON FOOTPRINT -
Tobias, C.M. 2009. A GENOME MAY REDUCE YOUR CARBON FOOTPRINT. The Plant Genome. 2:5-8.
Impact of Divergent Selection on the Abundance and Activities of Lignin Biosynthetic Enzymes in Switchgrass, and Characterization of Recombinant Switchgrass CAD and COMT Proteins -
Saathoff, A.J., Palmer, N.A., Tobias, C.M., Twigg, P., Sattler, S.E., Haas, E.J., Mitchell, R., Vogel, K.P., Sarath, G. 2009. Impact of Divergent Selection on the Abundance and Activities of Lignin Biosynthetic Enzymes in Switchgrass, and Characterization of Recombinant Switchgrass CAD and COMT Proteins. p. 47 Abstracts 31st Symposium on Biotechnology for Fuels and Chemicals, Soc. for Industrial Microbiology. May 3-6, 2009, San Francisco, CA.
Comparative Genomes in Switchgrass Using 61,585 High-Quality EST -
Tobias, C.M., Sarath, G., Twigg, P., Lindquist, E., Pangilinan, J., Penning, B., Barry, K., Carpita, N., Lazo, G.R. 2008. Comparative Genomics in Switchgrass Using 61,585 High-Quality EST. The Plant Genome. 1:111-124
GENIC MICROSATELLITE MARKERS DERIVED FROM EST SEQUENCES OF SWITCHGRASS (PANICUM VIRGATUM L.) -
Tobias, C.M., Hayden, D.M., Twigg, P., Sarath, G. 2006. Genic microsatellite markers derived from EST sequences of switchgrass (Panicum virgatum L.). 6:185-187. Molecular Ecology Notes.
ANALYSIS OF EXPRESSED SEQUENCE TAGS AND THE IDENTIFICATION OF ASSOCIATED SHORT TANDEM REPEATS IN SWITCHGRASS -
Tobias, C.M., Twigg, P., Hayden, D.M., Vogel, K.P., Mitchell, R., Lazo, G.R., Chow, E.K., Sarath, G. 2005. Analysis of expressed sequence tags and the identification of associated short tandem repeats in switchgrass. Theoretical and Applied Genetics. 111: 956-964.
APPLICATION OF FUNCTIONAL GENOMIC TOOLS FOR EXPLORING SWITCHGRASS FEEDSTOCKS IMPROVED THROUGH DIVERGENT SELECTION -
Sarath, G., Vogel, K.P., Mitchell, R., Twigg, P., Tobias, C.M., Baird, L.M. 2005. Application of functional genomic tools for exploring switchgrass feedstocks improved through divergent selection. Biotechnology for Fuels and Chemicals Symposium Proceedings.#3A-01.
STRUCTURE OF THE CINNAMYL-ALCOHOL DEHYDROGENASE GENE FAMILY IN RICE AND PROMOTER ACTIVITY OF A MEMBER ASSOCIATED WITH LIGNIFICATION. -
Tobias, C.M., Chow, E.K. 2004. Structure of the Cinnamyl-Alcohol Dehydrogenase Gene Family in Rice and Promoter Activity of a Member Associated with Lignification. Planta. 220:678-688.
ARS News Articles
Last Modified: 5/2/2016
Footer Content Back to Top of Page