After 10 years of research sequencing the complete genome of barley, a better beer or single malt Scotch whiskey may be brewing or distilling soon.
A team of researchers at the University of California, Riverside were part of a group of 77 scientists worldwide who have sequenced the complete genome of barley, a key ingredient in beer and single malt Scotch. The research, 10 years in the making, was just published in the journal Nature.
“This takes the level of completeness of the barley genome up a huge notch,” said Timothy Close, a professor of genetics at UC Riverside. “It makes it much easier for researchers working with barley to be focused on attainable objectives, ranging from new variety development through breeding to mechanistic studies of genes.”
The research will also aid scientists working with other “cereal crops,” including rice, wheat, rye, maize, millet, sorghum, and oats.
The report in Nature provides new insights into gene families that are key to the malting process. The barley genome sequence also enabled the identification of regions of the genome that have been vulnerable to genetic bottlenecking during domestication, knowledge that helps to guide breeders to optimize genetic diversity in their crop improvement efforts.
Ten years ago, the International Barley Genome Sequencing Consortium, which is led by Nils Stein of the Leibniz Institute of Plant Genetics and Crop Plant Research in Germany, set out to assemble a complete reference sequence of the barley genome. This was a daunting task, as the barley genome is almost twice the size of the human genome and 80 percent of it is composed of highly repetitive sequences, which cannot be assigned accurately to specific positions in the genome without considerable extra effort.
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