Athens, Ga. An international team of scientists including researchers from the University of Georgia recently published the genome of Brassica napuscommonly known as canolain the journal Science. Their discovery paves the way for improved versions of the plant, which is used widely in farming and industry.
Canola is grown across much of Canada and its native Europe, but the winter crop is increasingly cultivated in Georgia. Canola oil used for cooking is prized for its naturally low levels of saturated fat and rich supply of omega-3 fatty acids, but the plant is also used to produce feed for farm animals and as an efficient source for biodiesel.
"This genome sequence opens new doors to accelerating the improvement of canola," said Andrew Paterson, Regents Professor, director of UGA's Plant Genome Mapping Laboratory and co-corresponding author for the study. "We can use this knowledge to tailor the plant's flowering time, make it more resistant to disease and improve a myriad of other traits that will make it more profitable for production in Georgia and across the country."
Canola has one of the most complex genomes among flowering plants, forming thousands of years ago during the Neolithic Era when two plant speciesBrassica rapa and Brassica oleraceacombined in the wild. Plants in the B. rapa family include turnips and cabbages, while B. oleracea encompasses cauliflower, cabbage, collards, broccoli, kale and other common vegetables.
The Plant Genome Mapping Laboratory played prominent roles in the sequencing both B. rapa and B. oleracea in 2011 and 2014, respectively.
"Understanding the genomes of B. rapa and B. oleracea was key to piecing together the canola genome," Paterson said. "It's like a genetic love triangle between the three species, with canola sometimes favoring genes from B. rapa or B. oleracea or sometimes both."
|Contact: Andrew Paterson|
University of Georgia