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Researchers discover `hotspot` regions in wheat genome for high zinc content
Monday, 2018/10/01 | 08:06:13

Figure: The reported work by wheat scientists paves the way for expanded use of wild grass species, such as Aegilops tauschii (also known as goat grass; pictured here) as sources of new genes for higher grain zinc in wheat. (Photo: CIMMYT)

 

An international team of scientists has for the first time studied the genetics that underlie grain zinc concentrations in wheat. Analyzing zinc concentrations in the grain of 330 bread wheat lines across diverse environments in India and Mexico, the research team uncovered 39 new molecular markers associated with the trait, as well as two wheat genome segments that carry important genes for zinc uptake, translocation, and storage in wheat.

 

More than 17 percent of the world's population, largely across Africa and Asia, lack zinc in their diets, a factor responsible for the deaths of more than 400,000 children each year. Velu Govindan, wheat breeder at the International Maize and Wheat Improvement Center (CIMMYT) and first author of the new report said that the collaboration among research centers in IndiaAustralia, the USA, and Mexico will expedite breeding for higher zinc through use of ‘hotspot' genome regions and molecular markers.

 

For more details, read the news article from CIMMYT.

 

NB: An international team of scientists applied genome-wide association analysis for the first time to study the genetics that underlie grain zinc concentrations in wheat, according to a report published in Nature Scientific Reports on September 10.

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