
Ryan Whitford
School of Agriculture, Food and Wine
Faculty of Sciences
Eligible to supervise Masters and PhD - email supervisor to discuss availability.
Ryan is a plant molecular biologist who's research interests are in floral developmental biology and the underlying molecular mechanisms behind plant responses to abiotic stress. He has previously worked on projects ranging from meiosis to extracellular peptide-based signalling in Arabidopsis and cereals. Ryan completed his PhD at the Co-operative Research Centre for Molecular Plant Breeding at the University of Adelaide, after which he worked as a Molecular Biologist for Bayer Cropscience GmbH (Frankfurt-am-Main, Germany) before a postdoctoral period within the Flemish Interuniversity Institute for Biotechnology (Ghent University, Belgium). He is now leading the hybrid wheat program at the Australian Centre of Plant Functional Genomics (Adelaide, South Australia).
The FAO predicts that major improvements in wheat yields will be critical to ensuring global food security (FAO, 2013). Over the past decade, wheat yield improvements from conventional crop breeding has tapered off. This stands in contrast to the situation in rice and maize where yield improvements have continued unabated. Several reasons have been proposed for this difference between maize and wheat:
- increased private sector investment in maize research
- early adoption and implementation of GM technologies
- increased opportunities provided by hybrid breeding.
Hybrid wheats hold the potential to increase yields and will open a range of new breeding opportunities. Although capturing heterosis in wheat has historically been intractable, a recent experimental survey of European winter wheat combining ability indicates yield gains of 10% can be achieved (HYWHEAT consortium, Longin et al., 2013). Commercial exploitation of this heterotic yield gain is likely to be difficult due to wheat’s strong inbreeding nature, a factor primarily governed by floral development and architecture, and the lack of a cost-effective and practicable fertility control system (Whitford et al., 2013). The aim of ACPFG’s Hybrid Wheat Research team is to reduce hybrid seed production costs by
- Developing a robust male sterility and restoration system, and
- Improving wheat’s floral characteristics for out-crossing
Project Title: Developing a fertility restoration system for hybrid wheat seed production
Project Partner: DuPont-Pioneer
The fertility control team is responsible for identifying novel gene sequences necessary for wheat fertility. The program exploits mutant resources by next generation sequencing and the latest bioinformatic analyses in a forward genetics approach towards gene identification. Reverse genetics techniques including mutant complementation and genome editing (CRISPR/cas9) are used to validate which fine-mapped gene sequences are necessary for ensuring fertility. Fertility genes and their encoded proteins are typically characterised at the transcriptomic, proteomic and metabolomics levels relative to their specific roles in reproductive development.
Techniques
- Positional cloning
- Molecular markers
- Genotyping by Sequencing (GbS)
- Genome Wide Association Study (GWAS)
- RNAseq/qRT-PCR
- Quantitative PCR
- Cloning/Vector construction
- GC-MS-based metabolite profiling
- Light and confocal microscopy
- SEM, TEM
- Phenotypic analyses on floral and reproductive development
- Glasshouse and field work
- Biolistic and Agrobacterium mediated transformation
- Genome editing
References
- FAOSTAT (2013) http://faostat3.fao.org/home/index.html
- Longin CFH, Gowda M, Mühleisen J, Ebmeyer E, Kazman E, Schachschnieder R, Schacht J, Kirchhoff M, Zhao Y, Reif JC.(2013) Hybrid wheat: quantitative genetic parameters and consequences for the design of breeding programs. Theoretical and Applied Genetics doi 10.1007/s00122-013-2177-z.
- Whitford, R., Fleury, D., Reif, J.C., Garcia, M., Okada, T., Korzun, V., and Langridge, P. (2013) Hybrid breeding in wheat: technologies to improve hybrid wheat seed production. Journal of Experimental Botany (Darwin Review) DOI: 10.1093/jxb/ert333.
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Appointments
Date Position Institution name 2019 Affiliate Senior Research Scientist The University of Adelaide 2008 - 2018 Research Scientist Australian Centre for Plant Functional Genomics 2002 - 2003 Molecular Biologist Bayer Cropscience -
Awards and Achievements
Date Type Title Institution Name Country Amount 2015 Award Adelaide University Emerging Industry Research Partnership Award University of Adelaide Australia — 2001 Nomination Young Australian of the Year in the Science and Technology — Australia — 1998 Award National Farmers Federation Prize University of Western Australia Australia — 1997 Award Eva Sobotka Memorial Prize University of Western Australia Australia — 1997 Award Henry (Senior) Seeligson Memorial Prize University of Western Australia Australia — -
Language Competencies
Language Competency Dutch; Flemish Can read, speak and understand spoken -
Education
Date Institution name Country Title 1994 - 1997 University of Western Australia Australia Bachelor of Science Honours (1A) -
Postgraduate Training
Date Title Institution Country 1998 - 2002 PhD University of Adelaide Australia — Postdoctoral Fellow Ghent University Belgium -
Research Interests
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Journals
Year Citation 2020 Nagahatenna, D. S. K., Parent, B., Edwards, E. J., Langridge, P., & Whitford, R. (2020). Barley plants overexpressing ferrochelatases (HvFC1 and HvFC2) show improved photosynthetic rates and have reduced photo-oxidative damage under drought stress than non-transgenic controls. Agronomy, 10(9), 21 pages.
2020 Nagahatenna, D. S. K., Tiong, J., Edwards, E. J., Langridge, P., & Whitford, R. (2020). Altering tetrapyrrole biosynthesis by overexpressing ferrochelatases (Fc1 and Fc2) improves photosynthetic efficiency in transgenic barley. Agronomy, 10(9), 15 pages.
2020 Selva, C., Riboni, M., Baumann, U., Wurschum, T., Whitford, R., & Tucker, M. R. (2020). Hybrid breeding in wheat: how shaping the floral biology can offer new perspectives. Functional Plant Biology, 47(8), 47-8.
Scopus2 WoS12019 Okada, A., Arndell, T., Borisjuk, N., Sharma, N., Watson-Haigh, N. S., Tucker, E. J., . . . Whitford, R. (2019). CRISPR/Cas9-mediated knockout of Ms1 enables the rapid generation of male-sterile hexaploid wheat lines for use in hybrid seed production. Plant Biotechnology Journal, 17(10), 1905-1913.
Scopus21 WoS21 Europe PMC92019 Okada, T., Jayasinghe, J. E. A. R. M., Eckermann, P., Watson-Haigh, N. S., Warner, P., Hendrikse, Y., . . . Whitford, R. (2019). Effects of Rht-B1 and Ppd-D1 loci on pollinator traits in wheat. Theoretical and Applied Genetics, 132(7), 1965-1979.
Scopus8 WoS8 Europe PMC12019 Suchecki, R., Sandhu, A., Deschamps, S., Llaca, V., Wolters, P., Watson-Haigh, N., . . . Baumann, U. (2019). LNISKS: Reference-free mutation identification for large and complex crop genomes.
2019 Pallotta, M. A., Warner, P., Kouidri, A., Tucker, E. J., Baes, M., Suchecki, R., . . . Whitford, R. (2019). Wheat ms5 male-sterility is induced by recessive homoeologous A and D genome non-specific lipid transfer proteins. Plant Journal, 99(4), 673-685.
Scopus7 WoS6 Europe PMC12019 Jia, Y., Selva, C., Zhang, Y., Li, B., McFawn, L. A., Broughton, S., . . . Li, C. (2019). Uncovering the evolutionary origin of blue anthocyanins in cereal grains.. The Plant journal : for cell and molecular biology, 101(5), 1057-1074.
Scopus3 WoS5 Europe PMC22019 Arndell, T., Sharma, N., Langridge, P., Baumann, U., Watson-Haigh, N. S., & Whitford, R. (2019). gRNA validation for wheat genome editing with the CRISPR-Cas9 system.. BMC biotechnology, 19(1), 71.
Scopus4 WoS12018 Kouidri, A., Whitford, R., Suchecki, R., Kalashyan, E., & Baumann, U. (2018). Genome-wide identification and analysis of non-specific Lipid Transfer Proteins in hexaploid wheat. Scientific Reports, 8(1), 12 pages.
Scopus3 WoS3 Europe PMC12018 Kouidri, A., Baumann, U., Okada, T., Baes, M., Tucker, E., & Whitford, R. (2018). Wheat TaMs1 is a glycosylphosphatidylinositol-anchored lipid transfer protein necessary for pollen development. BMC Plant Biology, 18(1), 13 pages.
Scopus3 WoS42018 Okada, T., Jayasinghe, R., Nansamba, M., Baes, M., Warner, P., Kouidri, A., . . . Baumann, U. (2018). Unfertilized ovary pushes wheat flower open for cross-pollination. Journal of Experimental Botany, 69(3), 399-412.
Scopus8 WoS10 Europe PMC32017 Ferdous, J., Whitford, R., Nguyen, M., Brien, C., Langridge, P., & Tricker, P. (2017). Drought-inducible expression of Hv-miR827 enhances drought tolerance in transgenic barley. Functional and Integrative Genomics, 17(2-3), 279-292.
Scopus19 WoS16 Europe PMC62017 Tucker, E., Baumann, U., Kouidri, A., Suchecki, R., Baes, M., Garcia, M., . . . Whitford, R. (2017). Molecular identification of the wheat male fertility gene Ms1 and its prospects for hybrid breeding. Nature Communications, 8(1), 869-1-869-10.
Scopus33 WoS32 Europe PMC82015 Nagahatenna, D., Langridge, P., & Whitford, R. (2015). Tetrapyrrole-based drought stress signalling. Plant Biotechnology Journal, 13(4), 447-459.
Scopus33 WoS25 Europe PMC152013 Whitford, R., Fleury, D., Reif, J., Garcia, M., Okada, T., Korzun, V., & Langridge, P. (2013). Hybrid breeding in wheat: technologies to improve hybrid wheat seed production. Journal of Experimental Botany, 64(18), 5411-5428.
Scopus107 WoS111 Europe PMC542012 Whitford, R., Fernandez, A., Tejos, R., Perez, A., Kleine-Vehn, J., Vanneste, S., . . . Hilson, P. (2012). GOLVEN secretory peptides regulate auxin carrier turnover during plant gravitropic responses. Developmental Cell, 22(3), 678-685.
Scopus117 WoS106 Europe PMC812010 Mortier, V., Den Herder, G., Whitford, R., Van de Velde, W., Rombauts, S., D'haeseleer, K., . . . Goormachtig, S. (2010). CLE peptides control medicago truncatula nodulation locally and systemically. Plant Physiology, 153(1), 222-237.
Scopus180 WoS170 Europe PMC1342008 Whitford, R., Fernandez, A., De Groodt, R., Ortega, E., & Hilson, P. (2008). Plant CLE peptides from two distinct functional classes synergistically induce division of vascular cells. Proceedings of the National Academy of Sciences of the United States of America, 105(47), 18625-18630.
Scopus134 WoS127 Europe PMC992007 Whitford, R., Baumann, U., Sutton, T., Gumaelius, L., Wolters, P., Tingey, S., . . . Langridge, P. (2007). Identification of transposons, retroelements, and a gene family predominantly expressed in floral tissues in chromosome 3DS of the hexaploid wheat progenitor Aegilops tauschii. Functional & Integrative Genomics, 7(1), 37-52.
Scopus7 WoS7 Europe PMC42006 Underwood, B., Vanderhaeghen, R., Whitford, R., Town, C., & Hilson, P. (2006). Simultaneous high-throughput recombinational cloning of open reading frames in closed and open configurations. Plant Biotechnology Journal, 4(3), 317-324.
Scopus14 WoS14 Europe PMC102005 Dong, C., Thomas, S., Becker, D., Lorz, H., Whitford, R., Sutton, T., . . . Langridge, P. (2005). WM5: Isolation and characterisation of a gene expressed during early meiosis and shoot meristem development in wheat. Functional Plant Biology, 32(3), 249-258.
Scopus6 WoS5 Europe PMC32003 Sutton, T., Whitford, R., Baumann, U., Dong, C., Able, J., & Langridge, P. (2003). The Ph2 pairing homoeologous locus of wheat (Triticum aestivum): identification of candidate meiotic genes using a comparative genetics approach. Plant Journal, 36(4), 443-456.
Scopus55 WoS45 Europe PMC362002 Dong, C., Whitford, R., & Langridge, P. (2002). A DNA mismatch repair gene links to the Ph2 locus in wheat. Genome, 45(1), 116-124.
Scopus35 WoS33 Europe PMC24 -
Books
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Book Chapters
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Conference Papers
Year Citation 2013 Anbalagan, R., Kovalchuk, N., Parent, B., Kovalchuk, A., Okamoto, M., Whitford, R., & Haefele, S. (2013). A phenotyping platform for transgenic wheat: Method and initial results. In J. Piantadosi, R. Anderssen, & J. Boland (Eds.), Proceedings - 20th International Congress on Modelling and Simulation, MODSIM 2013 (pp. 496-502). Adelaide, AUSTRALIA: MODELLING & SIMULATION SOC AUSTRALIA & NEW ZEALAND INC.
Scopus2 WoS22004 Sutton, T., Whitford, R., Baumann, U., Able, J., Lazo, G., & Langridge, P. (2004). Genomics approaches to identify meiotic genes in wheat. In Plant & Animal Genome XII : conference abstracts (pp. W143). San Diego, CA. -
Conference Items
Year Citation 2018 Selva, C., Tucker, M. R., Baumann, U., & Whitford, R. (2018). Floral development in barley: characterization of multiovary mutants. Poster session presented at the meeting of International Congress on Sexual Plant Reproduction. Japan. 2017 Selva, C., Tucker, M. R., Baumann, U., & Whitford, R. (2017). The benefits of sterility: characterizing multiovary mutants for hybrid seed production. Poster session presented at the meeting of Combined biosciences - ComBio. Australia. 2014 Whitford, R., Nagahatenna, D., & Langridge, P. (2014). Overexpression of type I Ferrochelatase (FCI) enhances wilting avoidance in barley (Hordeum vulgare). Poster session presented at the meeting of International Association for Plant Biotechnology Congress 2014. Melbourne, Australia: http://www.iapb2014congress.com/. 2013 Tucker, E., Okada, T., Warner, P., Manning, S., Baes, M., Kouidri, A., . . . Whitford, R. (2013). Towards the development of a fertility control system for hybrid wheat breeding. Poster session presented at the meeting of Wheat Breeders Assembly. Brisbane, Australia: http://wheatbreedingassembly.com.au/. 2009 Whitford, R., Fernandez, A., Cuellar, A., Kleine-Vehn, J., De Groodt, R., Vanneste, S., . . . Hilson, P. (2009). Local action of GOLVEN secretory peptides stabilizes an auxin efflux carrier during plant gravitropic responses. Poster session presented at the meeting of 20th International Conference on Arabidopsis Research. Edinburgh, Scotland. 2008 Mortier, V., Den Herder, G., Van de Velde, W., Whitford, R., Holsters, M., & Goormachtig, S. (2008). CLE peptide signaling during nodulation on Medicago truncatula. Poster session presented at the meeting of 8th European Nitrogen Fixation Conference. Gent, Belgium. 2008 Whitford, R., Fernandez, A., Kleine-Vehn, J., De Groodt, R., Vanneste, S., Beeckman, T., . . . Hilson, P. (2008). GOLVEN secretory peptides control plant gravitropism. Poster session presented at the meeting of 19th International Conference on Arabidopsis Research. Montreal, Canada. 2008 Mortier, V., Den Herder, G., Van de Velde, W., Whitford, R., Holsters, M., & Goormachtig, S. (2008). CLE peptide signaling during nodulation on Medicago truncatula. Poster session presented at the meeting of 4th EPSO Conference. Toulon (Côte d’Azur), France. 2006 Underwood, B. A., Xiao, Y. -L., Wu, H. C., Moskal, W. A., Wang, W., Monaghan, E. L., . . . Town, C. D. (2006). High throughput full-length cDNA cloning of low-expressing genes in Arabidopsis. Poster session presented at the meeting of Plant Biology 2006. Boston, Massachusetts, USA: http://abstracts.aspb.org/. -
Patents
Year Citation 2016 Whitford, R., Baumann, U., Tucker, E., Cigan, M., & Albertsen, M. C. (2016). WO/2016/048891, Wheat Ms1 Polynucleotides, Polypeptides, and Methods of Use. United States of America. 2016 Whitford, R., Baumann, U., Tucker, E., Cigan, M., & Albertsen, M. C. (2016). WO/2016/048891, Wheat Ms1 Polynucleotides, Polypeptides, and Methods of Use. United States of America. 2016 Whitford, R. (2016). WO/2016/048891, Wheat Ms1 polynucleotides, polypeptides and methods of use. United States of America. 2016 Whitford, R. (2016). WO/2016/048891, Wheat Ms1 polynucleotides, polypeptides and methods of use. United States of America. 2014 Whitford, R., & Nagahatenna, D. (2014). US 62/059069, Ferrochelatase compositions and methods to increase agronomic performance of plants. United States of America. 2014 Whitford, R., & Nagahatenna, D. (2014). US 62/059069, Ferrochelatase compositions and methods to increase agronomic performance of plants. United States of America. 2005 Bastiaans, H., Donn, G., Knittel, N., Martelletti, A., Rees, R., Schwall, M., & Whitford, R. (2005). International Application No.: PCT/EP2004/014262, Plant growth regulation (2,4-diamino-5-substituted-thiazole derivatives as phytoregulators). 2005 Bastiaans, H., Donn, G., Knittel, N., Martelletti, A., Rees, R., Schwall, M., & Whitford, R. (2005). WO/2005/107466, “PLANT GROWTH REGULATION - indolinone derivatives as phytoregulators”. 2005 Bastiaans, H., Donn, G., Knittel, N., Martelletti, A., Rees, R., Schwall, M., & Whitford, R. (2005). WO/2005/107471, "PLANT GROWTH REGULATION - azepinone derivative as phytoregulators". 2005 Bastiaans, H., Donn, G., Knittel, N., Martelletti, A., Rees, R., Schwall, M., & Whitford, R. (2005). WO/2005/107472, "PLANT GROWTH REGULATION - Substituierte 2-amino-6-oxy-purine as phytoregulators". 2005 Bastiaans, H., Donn, G., Knittel, N., Martelletti, A., Rees, R., Schwall, M., & Whitford, R. (2005). WO/2005/107465, “PLANT GROWTH REGULATION - 3,4-disubstituted maleimideals as phytoregulators”. -
Theses
Year Citation 2001 Whitford, R. (2001). From intimate chromosome associations to wild sex in wheat. (PhD Thesis, The University of Adelaide).
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Past Higher Degree by Research Supervision (University of Adelaide)
Date Role Research Topic Program Degree Type Student Load Student Name 2016 - 2020 Co-Supervisor Understanding Flower Development in Barley (Hordeum Vulgare) through Characterisation of Multiovary Mov Mutants and Their Potential Use in Hybrid Breeding Doctor of Philosophy Doctorate Full Time Miss Caterina Selva 2014 - 2018 Co-Supervisor Wheat non-specific Lipid Transfer Proteins: identification and characterisation of nuclear-encoded fertility restorer genes Doctor of Philosophy Doctorate Full Time Mr Allan Kouidri 2014 - 2019 Principal Supervisor Genome editing in wheat with CRISPR/Cas9 Doctor of Philosophy Doctorate Full Time Taj Arndell 2011 - 2015 Co-Supervisor Investigating the Role of Tetrapyrrole Biosynthesis under Drought Stress in Cereal Transgenics Doctor of Philosophy Doctorate Full Time Dr Dilu Nagahatenna
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Editorial Boards
Date Role Editorial Board Name Institution Country 2020 - ongoing Editor Agronomy Journal University of Adelaide Australia
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