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Common bean genome sequence provides powerful tools to improve critical food crop
Date:6/9/2014

Huntsville, Ala. String bean, snap bean, haricot bean, and pinto and navy bean. These are just a few members of the common bean family scientifically called Phaseolus vulgaris. These beans are critically important to the global food supply. They provide up to 15 percent of calories and 36 percent of daily protein for parts of Africa and the Americas and serve as a daily staple for hundreds of millions of people.

Now, an international collaboration of researchers, led by Jeremy Schmutz of the HudsonAlpha Institute for Biotechnology and Phillip McClean, of North Dakota State University (NDSU) have sequenced and analyzed the genome of the common bean to begin to identify genes involved in critical traits such as size, flavor, disease resistance and drought tolerance. The study was funded by the US Department of Agriculture, National Institute of Food and Agriculture and the US Department of Energy Office of Science.

The researchers learned that, unlike most other food crops, the common bean was domesticated twice by humans about 8,000 years ago once in Mexico and once in South America through the selection of largely non-overlapping, unique subsets of genes.

"We found very little overlap, and very little mixing, among the two domesticated populations," said Jeremy Schmutz, who co-directs the HudsonAlpha Institute's Genome Sequencing Center and serves as the Plant Program Leader for the Department of Energy Joint Genome Institute. "Evolutionarily, this makes the common bean very unique and interesting."

Schmutz shares lead authorship of the current study, which was published on June 8 in Nature Genetics, with Phillip McClean, director of the genomics and bioinformatics program at NDSU. Scott Jackson, from the University of Georgia, is the senior author.

The HudsonAlpha Genome Sequencing Center specializes in the production of reference plant genomes and genomic resources with a focus on improving agriculture
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Contact: Beth Pugh
bpugh@hudsonalpha.org
256-327-0443
HudsonAlpha Institute for Biotechnology
Source:Eurekalert

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