Potential to improve food security, increase crop yield
Using latest genomic technologies to study the evolution of the sunflower
Dr. Jennifer Mandel, associate professor in the Department of Biological Sciences, and her collaborative team comprising of researchers Dr. Daniel Jones at Auburn University and Dr. John Burke of the University of Georgia, have been awarded a $2.2M from the National Science Foundation Division of Integrative Organismal Systems – Plant Genome Research Project to study the genomics of inflorescence development and evolution in the sunflower family.
The project “Comparative genomics of the capitulum: deciphering the molecular basis of a key floral innovation” will use the latest genomic technologies to discover the genes that control how the sunflower head inflorescence, or capitulum, develops and evolved. The iconic sunflower capitulum is not just a single flower but actually a composite of many small flowers (sometimes hundreds) that appear and ecologically function as one large flower. Evolutionary biologists hypothesize that the capitulum is key to the success of the sunflower family which makes up ca. 10% of the world’s flowering plant biodiversity and includes numerous species of horticultural, medicinal, and industrial value plus economically important food crops such as artichoke, lettuce, and safflower.
Little is known about the genes involved in capitulum development and understanding how inflorescences develop has the potential to improve food security through optimization of floral structures for yield in crops, and by accelerating progress toward new crop development. This work by Mandel and her collaborators will also increase available genomic resources for the sunflower family and result in the development of novel tools for gene editing in the family. Mandel will receive $811,531 from the National Science Foundation over the next four years for this project, which will also provide educational opportunities for diverse students and researchers at multiple training levels, through directed efforts to recruit individuals from traditionally underrepresented groups.
Mandel and members of her lab (mandel-lab.org) study sunflowers and their relatives to understand the mechanisms that drive and maintain plant biodiversity. Research from her lab also focuses on using genetics and genomics approaches to study crop and wild species. Mandel’s research has been funded by the United States Department of Agriculture, the National Science Foundation, and the Smithsonian Institution. Mandel, who has been at the university for nearly 9 years, has published over 60 peer-reviewed articles in high impact journals including Nature and The Proceedings of the National Academy of Sciences. She is also a member of the member of the Department of Biological Sciences Center for Biodiversity and the FedEx Institute of Technology’s ENDEAVOR-AgriTech Leadership Team.
To learn more, contact Mandel at jmandel@memphis.edu.