Breeding

Plant breeders can help America re-orient our dominant system of single-crop agriculture toward a multi-crop landscape that is less costly to farmers, better for the environment, helps slow climate change and still yields a profit. But, those efforts are just one part of a complex system that also will require the buy-in of farmers themselves, supported by political will, new agricultural policies and the cooperation of scientists, seed companies, machinery and fertilizer manufacturers, insurance providers, banks and environmental groups.

Top plant scientists from across Africa have just completed the first phase of a ground-breaking course in gene editing for crops: It aims to harness a cutting-edge breeding tool to adapt African agriculture to growing populations and the threat of climate change.

“The talent’s there. We just need to enable it,” said Allen Van Deynze, of the UC Davis Department of Plant Sciences. “We’re enabling it with training, with tools and with support for their labs. That’s part of our program.”

Maeli Melotto, a professor in the UC Davis Department of Plant Sciences specializing in plant immunity, has been recognized as a fellow of the American Association for the Advancement of Science, the world’s largest general scientific society and publisher of the Science family of journals.

Imtiyaz Khanday, an assistant professor in the UC Davis Department of Plant Sciences, is co-leading an international team that has propagated a commercial hybrid rice strain as a clone through seeds with 95 percent efficiency. The method that led to this breakthrough could lower the cost of hybrid rice seed, making high-yielding, disease-resistant rice strains available to low-income farmers worldwide.

Jorge Dubcovsky and researchers in his lab have been recognized for providing basic genetic information about wheat and improved germplasm that is being used by scientists around the world to improve “the staff of life.” Those efforts are bringing new varieties of wheat to farmers adapting to new conditions. For his leadership in those efforts, Dubcovsky was awarded the Frank N. Meyer Medal for Plant Genetic Resources, and a $2,000 prize, at the recent annual meeting of the Crop Science Society of America.

Plant pathologist Paul G. Smith, the founder of pepper genetics and a retired professor at UC Davis, has been recognized for a lifetime of contributions that continue to shape plant sciences today.

Smith was a professor in the former UC Davis Department of Vegetable Crops, one of four departments that merged to become the current Department of Plant Sciences. His contributions were recognized at the recent 25th International Pepper Conference in Tucson, Ariz.

Josh Hegarty, a postdoctoral researcher in the Dubcovsky Lab in the Department of Plant Sciences at the University of California, Davis, is leading a project to develop commercial varieties of triticale to be grown for forage and feed. The National Institute of Food and Agriculture, or NIFA, is granting a $300,000 investment as part of their Agriculture and Food Research Initiative.

Christine Diepenbrock, an assistant professor in the Department of Plant Sciences, and several researchers from Cornell, Michigan State, Purdue, and North Carolina State Universities have collaborated to identify and thoroughly dissect 11 genes underpinning natural variation in levels of carotenoids, including those with provitamin A activity, in maize kernels. 

Red, ripe strawberries are the hallmark of spring in California. Two new varieties from the Public Strawberry Breeding Program at the University of California, Davis, will provide consumers with big, flavorful strawberries throughout fall and winter, too.

“These cultivars were developed to provide high-quality fruit from late summer through the holidays,” said Steve Knapp, director of the UC Davis Strawberry Breeding Program and professor in the Department of Plant Sciences.