Ismail Dweikat


·Sweet Sorghum Research

Ismail Dweikat


Area of Expertise: Plant Breeding and Genetics

B.S., Plant Science, University of Florida, 1981

M.S., Vegetable Crop Physiology, University of Florida, 1983

Ph.D., Plant Breeding and Genetics, University of Florida, 1988

Area of Focus

Pearl Millet Genetics and Sorghum

Research Interests

I work in sorghum and pearl millet genetics. My program focuses on the genetics of sorghum and pearl millet with emphasis on the identification of DNA-based markers and mapping systems useful in practical selection schemes.

Extension Interests

Providing the sorghum and millet growers with timely information regarding opportunities and advances in germplasm development.

Major Project Activities

Identify loci and specific alleles that control the concentration of sweet sorghum stem sugar and cell wall constituents and flowering habit that are associated with biomass production. Application of comparative genomics to quantitative trait (QTL) analysis with emphasis on seed size, cold adaptation, and nitrogen use efficiency in sorghum. Study the molecular basis for cytoplasmic male sterility (CMS) in pearl millet. Establishment of strategies for efficient sorghum inbred development using DNA-based fingerprinting methods.


  • Elbasyoni IS, El-Orabey WM, Morsy S, Baenziger PS, Al Ajlouni Z, Dweikat, I. 2019. Evaluation of a global spring wheat panel for stripe rust: Resistance loci validation and novel resources identification. PLoS ONE 14(11): e0222755.
  • Yuye Wu1,, Tingting Guo, Qi Mu, Jinyu Wang, Xin Li, Yun Wu, Bin Tian, Ming Li Wang, Guihua Bai, Ramasamy Peruma, Harold N. Trick, Scott R. Bean, Ismail M. Dweikat, Mitchell R. Tuinstra, Geoffrey Morris, Tesfaye T. Tesso1, Jianming Yu and Xianran L. 2019. Allelochemicals targeted to balance competing selections in African agroecosystem. Nature Plants | VOL 1234 5 | December 2019 | 1229–1236 |
  • Pattama Srinamngoen, Sontichai Chanprame, Nongluk Teinseree, Ismail M Dweikat. 2019. Colinearity of Putative Flowering Genes in Both Sugarcane and Sorghum. Euphytica 215:65-76
  • Richard Perrin, Lilyan Fulginiti, Subir Bairagi, and Ismail Dweikat. 2018. Sweet Sorghum as Feedstock in Great Plains Corn Ethanol Plants: The Role of Biofuel Policy. Journal of Agricultural and Resource Economics 43(1):34–45.
  • Dharmendra Kumar Singh, Hee-Kyung Lee, Ismail Dweikat and Kirankumar S. Mysore. 2018. An efficient and improved method for virus-induced gene silencing in sorghum. BMC Plant Biology (2018) 18:123
  • Gelli M, Konda AR, Liu K, Zhang C, Clemente TE, Holding DR, Dweikat IM. 2017. Validation of QTL mapping and transcriptome profiling for identification of candidate genes associated with nitrogen stress tolerance in sorghum. BMC Plant Biol 17:123.
  • Pamela A. Peña Truyen Quach Shirley Sato Zhengxiang Ge Natalya Nersesian Ismail M. Dweikat Madhavan Soundararajan Tom Clemente. 2017. Molecular and phenotypic characterization of transgenic wheat and sorghum events expressing the barley alanine aminotransferase. Planta , 246: 1097–1107
  • Werle, R., K. Begcy, M. K. Yerka, I. Dweikat, A. J. Jhala, J. P. Mower, and J. L. Lindquist. 2017. Independent evolution of acetolactate synthase-inhibiting herbicide resistance in weedy Sorghum populations across common geographic regions. Weed Science. 65:164-176.
  • Peña PA, Quach T, Sato S, Ge Z, Nersesian N, Changa T, Dweikat I, Soundararajan M, Clemente TE. 2017. Expression of the Maize Dof1 Transcription Factor in Wheat and Sorghum. Front Plant Sci. Mar 30;8:434. doi: 10.3389/fpls.2017.00434
  • Malleswari Gelli, Sharon E. Mitchell, Kan Liu, Thomas E. Clemente, Donald P. Weeks, Chi Zhang, David R. Holding and Ismail M. Dweikat. 2016. Mapping QTLs and association of differentially expressed gene transcripts for multiple agronomic traits under different nitrogen levels in sorghum. BMC Plant Biology 16:16
  • Saadia Bihmidine, Benjamin T Julius, Ismail Dweikat & David M Braun. 2016. Tonoplast Sugar Transporters (SbTSTs) putatively control sucrose accumulation in sweet sorghum stems. Plant Signaling & Behavior. 11, NO. 1, e1117721.
  • Sami Althwab, Timothy P. Carr, Curtis L.Weller, Ismail M. Dweikat, Vicki Schlegel. 2015. Advances in grain sorghum and its co-products as a human health promoting dietary system Food Research International. 77: 349-359.
  • Tadele T. Kumssa, P.S. Baenziger,* M.N. Rouse, M. Guttieri, I. Dweikat, G. Brown-Guedira, S. Williamson, R.A. Graybosch, S.N. Wegulo, A.J. Lorenz, and J. Poland. 2015. Characterization of Stem Rust Resistancein Wheat Cultivar Gage. Crop sci. 55:229–239.
  • Andrews, D., Rajewski, J., and I. Dweikat. 2013. Registration of Pearl Millet (Pennisetum glaucum(L) R.Br.) Genetic Male sterile (ms3) Stock NM-10. J. Plant registration. 7:1-3.
  • Marmar A. El Siddig, Stephen Baenziger, Ismail Dweikat, Adil A. El Hussein. 2013. Preliminary screening for water stress tolerance and genetic diversity in wheat (Triticum aestivum L.) cultivars from Sudan. Journal of Genetic Engineering and Biotechnology. 11:87-94.
  • Marmar A. El Siddig, Ismail Dweikat, Stephen Baenziger, Adil A. El Hussein and Ibrahim S. Elbasyoni. 2013. Genetic Diversity Among Sudanese Wheat Cultivars as Revealed by Molecular Markers. Middle-East Journal of Scientific Research 14 (9): 1135-1142.
  • Xu YZ, Santamaria R, Virdi KS, Arrieta-Montiel MP, Razvi F, Li S, Ren G, Yu B, Guo L, Feng X, Dweikat IM and Mackenzie SA. 2012. The chloroplast triggers developmental reprogramming when MUTS HOMOLOG1 is suppressed in plants. Plant Physiology. 159:710-720.
  • Kumar T, Dweikat, IM. Sato, S., Ge Z, Nersesian N, Chen H, Elthon, T. Bean, S., Ioerger BP, Tilley, M. and T. Clemente. 2012. Modulation of kernel storage proteins in grain sorghum (Sorghum bicolor (L.) Moench). Plant Biotech. J. 10: 533-544.
  • Dweikat, I., Clifford F. Weil, Stephen P. Moose, Leon Kochian, Nathan S. Mosier, Klein E. Ileleji, Patrick J. Brown, Wendy A. Peer, Angus S. Murphy, Farzad Taheripour, Maureen C. McCann, Nicholas C. Carpita. 2012. Envisioning the Transition to a Next-Generation Biofuels Industry in the Midwest. Biofuels, Bioproducts & Biorefining. Biofuels, Bioprod Bioref. 6:376-386.
  • Mengistu,N. P.S. Baenziger, K.M. Eskridge, I. Dweikat, S.N. Wegulo, K.S. Gill, and A. Mujeeb-Kazi. 2012. Validation of QTL for Grain Yield-Related Traits on Wheat Chromosome 3A Using Recombinant Inbred Chromosome Lines. Crop Sci.52:1622-1632
  • Dong Wang, Ibrahim Salah El-Basyoni, P. Stephen Baenziger, Jose Crossa, Kent M. Eskridge and Ismail Dweikat. 2012. Prediction of Genetic Values of Quantitative Traits with Epistatic Effects in Plant Breeding Populations. J. Heredity 109:309-313
  • Baenziger, P., Ismail Dweikat, Kulvinder Gill, Kent Eskridge, Terry Berke, Maroof Shah, B. Todd Campbell, M.L. Ali, Neway Mengistu, Abid Mahmood,Anyamanee Auvuchanon, Yang Yen, Sachin Rustgi, Benjamin Moreno-Sevilla, A. Mujeeb-Kazi, and M. Rosalind Morris. 2011. Understanding Grain Yield:It is a Journey, Not a Destination. Czech J. Genet. Plant Breed. 47: 577-584.
  • Tejinder, K, I. Dweikat,I. Sato, S Neresian, ,N. Xu, K , Ge, K,. Wang, D. Elthon, T. and Tom Clemente. 2011. Expression of the rice CDPK-7 in sorghum: molecular and phenotypic analyses. Plant Molecular Biology 75:467-479.
  • Liakat, A, P. Baenziger, S. Al Ajlouni, Z,. B. Campbell, T. K. S. Gill, K. M. Eskridge, A. Mujeeb-Kazi and Ismail Dweikat. 2011. Mapping QTL for Agronomic Traits on Wheat Chromosome 3A and a Comparison of Recombinant Inbred Chromosome Line Populations. Crop Sci. 51:553-566.
  • Xiaojuan, M, K Eskridge, D Wang, P.S Baenziger, B.T Campbell, K S. Gill, I Dweikat, J Bovaird. 2010. Regression-Based Multi-Trait QTL Mapping Using a Structural Equation Model. Statistical Applications in Genetics and Molecular Biology. Vol. 9 Iss. 1, Art. 38
  • Xiaojuan, M, K Eskridge, D Wang, P.S. Baenziger, B.T Campbell, K. S. Gill and I. Dweikat. 2010. Bayesian mixture structural equation modeling in multipletrait QTL mapping. Genetics Research, 92:239-250.
  • Wortmann, C., R.B. Ferguson, R.N. Klein, D.J. Lyon, A.J. Liska, and I. Dweikat. 2010. Dryland Performance of Sweet Sorghum and Grain Crops for Biofuel. Agromony Journal. In press.
  • Pedraza-Garcia, J.E. Specht, and I. Dweikat. 2010. A new PCR-based Linkage Map of Pearl Millet. Crop Sci. In press
  • Feng, X., Kaur, A., Mackenzie, S., I. Dweikat. 2009. Substoichiometric-Shifting in the Fertility Reversion of Cytoplasmic Male Sterile Pearl Millet. Theor. Appl. Genet. 118:1361-1370
  • Ali, M., Rajewski, J., P.S. Baenziger, K. S. Gill, K. M. Eskridge and I. Dweikat. 2008. Assessment of genetic diversity and relationship among a collection of US sweet sorghum germplasm by SSR markers. Molec. Breeding. 21:497-509.
  • Christiansen, K.L., Weller, C.L., Schlegel, V.L., Dweikat, I.M. 2008, Comparision of Lipid Extraction Methods of Food-Grade Sorghum (Sorghum biolor) Using Hexane. Biological Engineering, 1:51-63.
  • Baenziger, P.S., R. A. Graoybosch, I. Dweikat, S. N. Wegulo, G. L. Hein, and K. M. Eskridge. 2008. In R. Appels, R. Eastwood, E. Lagudah, P. Langridge, M. Mackay, and L. McIntyre (ed) Proc. 11 th International Wheat Genetics Symposium. August 24 -29, 2008. Brisbane, Australia.
  • Budak, H., Sheannan, B, and I. Dweikat. 2007 .Molecular characterization of cDNAencoding resistance gene like sequences in Buchloe dactyloides. Molecular Biotechnology. 34:293-301.
  • Jeffery Wilson, J. Rajewski, Xinzhi, N, David Bunti, and I. Dweikat. 2008. Field screening for chinch bug (Heteropetra:islissidao) resistance in pearl millet under temperate and subtropical climate conditions. Plant Health Progress doi:10.1094/PHP-2009-0112-01-RS.
  • Dweikat, I., Rajewski, J. and Eastin J. 2007. Registration of N585, N586, N589, N590, and N591, tan plants large-seeded grain sorghum. Plant Reg. J. 1:64-65.