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Fighting food insecurity by building better beans

2021-05-12
(Press-News.org) EAST LANSING, Mich. - As climate change threatens global food security, researchers at Michigan State University are building better beans crucial to human nutrition by tapping into the genetics of the more heat-resistant tepary bean.

The tepary bean (Phaseolus acutifolius A. Gray) is a sister of the common bean which includes kidney, pinto and navy beans. "The common bean is the number one source of protein and nutrients for many people living in Central America and Africa," said Robin Buell, a professor of plant biology in MSU's College of Natural Science and former director of the Plant Resilience Institute.

Her research on bean genetics was published May 11 in Nature Communications.

"Mother nature has already made plants that are adapted to different climates," said Buell, who is also a faculty member with MSU's AgBioResearch. We can use that knowledge to adapt our modern agriculture; we don't need to reinvent it. "As climate change heats up the air and land, making them hotter and dryer, warmer nighttime temperatures make it more difficult to grow beans. To identify the genes that support bean growth in the desert, Buell and her team sequenced the genome of the tepary bean.

"The tepary bean has evolved over time to grow in the Sonoran Desert," Buell said. "We could lay the genomes for both types of beans next to each other and compare them. If we know this gene on the tepary genome protects it from heat, then, we can add the gene to the common bean."

There are genes from the common bean that are being introduced into the tepary bean to make it easier to grow and there are genes from the tepary bean that are being introduced into the common bean to make it more heat and pest resistant.

"The goal is to grow a bean that gives a good yield, grows in dry, hot climates and is nutritious." Buell said. "We want to create an accelerated path to breed better tepary and common beans."

Michigan is the number two bean producer in the nation. For over 40 years, MSU has been a leader in bean breeding and with help from MSU's expertise in plant resilience, a research partnership was formed over the tepary bean.

INFORMATION:

(Note for media: Please include the following link to the study in all online media coverage: https://www.nature.com/articles/s41467-021-22858-x)

Michigan State University has been working to advance the common good in uncommon ways for more than 165 years. One of the top research universities in the world, MSU focuses its vast resources on creating solutions to some of the world's most pressing challenges, while providing life-changing opportunities to a diverse and inclusive academic community through more than 200 programs of study in 17 degree-granting colleges.

For MSU news on the Web, go to MSUToday. Follow MSU News on Twitter at twitter.com/MSUnews.



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[Press-News.org] Fighting food insecurity by building better beans