Genomics of Sunflower

Filed in archive Genomics, Proteomics and Bioinformatics on January 17, 2010

© Esdras Calderan

Genome Canada, Genome BC, US Departments of Energy and Agriculture, and France's INRA (National Institute for Agricultural Research) has undertaken a US$10.5 million research project that will create a reference genome for the sunflower family - currently the world's largest plant family, containing 24,000 species of plants, including many crops, medicinal plants, horticulture plants and noxious weeds.

Th project, titled Genomics of Sunflower, will use next-generation genotyping and sequencing technologies to sequence, assemble and annotate the sunflower genome and to locate the genes that are responsible for agriculturally important traits such as seed-oil content, flowering, seed-dormancy, and wood producing-capacity.

One of the potential applications of this research includes a hybrid variety of sunflower, grown as a dual-use crop. The wild Silverleaf species of sunflower, known for its tall, woody stalks that grow 10 to 15 feet tall and up to 4 inches in diameter in a single season, could be crossbred with the commercially valuable sunflower plant that produces high quality seeds, capitalizing on the desirable traits of both species.

"The seeds would be harvested for food and oil, while the stalks would be utilized for wood or converted to ethanol. As a dual-use crop it wouldn't be in competition with food crops for land," says project leader, Dr. Loren Rieseberg (University of British Columbia).

In addition, this fast growing annual crop will be highly drought resistant, thanks to desirable traits from the Silverleaf variety, and would therefore be suitable for use in subsistence agriculture in places like Sub-Saharan Africa, as well as in much of North America.

More details of the project here (pdf file).