Posts Tagged ‘CIMMYT’

New infographics illustrate impact of wheat blast

Wheat blast is a fast-acting and devastating fungal disease that threatens food safety and security in the Americas and South Asia.

First officially identified in Brazil in 1984, the disease is widespread in South American wheat fields, affecting as much as 3 million hectares in the early 1990s.

 In 2016, it crossed the Atlantic Ocean, and Bangladesh suffered a severe outbreak. Bangladesh released a blast-resistant wheat variety—developed with breeding lines from the International Maize and Wheat Improvement Center (CIMMYT)—in 2017, but the country and region remain extremely vulnerable.

The continued spread of blast in South Asia—where more than 100 million tons of wheat are consumed each year—could be devastating.

Researchers with the CIMMYT-led and USAID-supported Cereal Systems Initiative for South Asia (CSISA) and Climate Services for Resilient Development (CSRD) projects partner with national researchers and meteorological agencies on ways to work towards solutions to mitigate the threat of wheat blast and increase the resilience of smallholder farmers in the region. These include agronomic methods and early warning systems so farmers can prepare for and reduce the impact of wheat blast.

This series of infographics shows how wheat blast spreads, its potential effect on wheat production in South Asia and ways farmers can manage it.   

This work is funded by the U.S. Agency for International Development (USAID) and the Bill & Melinda Gates Foundation). CSISA partners include CIMMYT, the International Food Policy Research Institute (IFPRI), and the International Rice Research Institute (IRRI).

CIMMYT and its partners work to mitigate wheat blast through projects supported by U.S. Agency for International Development (USAID), the Bill and Melinda Gates Foundation, the Australian Centre for International Agricultural Research (ACIAR), Indian Council for Agricultural Research (ICAR), CGIAR Research Program on WHEAT, and the CGIAR Platform for Big Data in Agriculture.

See more on wheat blast here: https://www.cimmyt.org/wheat-blast/

Madhav Bhatta identifies new unique genes for the use of synthetics in wheat breeding

This profile of PhD student and visiting CIMMYT-Turkey researcher Madhav Bhatta, by Emma Orchardson was originally posted on InSide CIMMYT.

Madhav Bhatta at a IWWIP testing site in Turkey.

“Agriculture has always been my passion. Since my childhood, I’ve been intrigued by the fact that agriculture can provide food for billions of people, and without it, we cannot survive.”   

Wheat is one of the world’s most widely grown cereal crops. Global production between 2017 and 2018 exceeded 700 million tons and fed more than one third of the world’s population. Based on the current rate of population increase, cereal production will need to increase by at least 50 percent by 2030.

However, biotic and abiotic stresses such as crop diseases and drought continue to place significant constraints on agricultural production and productivity. Global wheat yield losses due to diseases such as wheat rust have been estimated at up to $5 billion per year since the 1990s, and rising temperatures are thought to reduce wheat production in developing countries by up to 30 percent.

“The importance of biotic and abiotic stress resistance of wheat to ensuring food security in future climate change scenarios is not disputed,” says Madhav Bhatta. “The potential of wide-scale use of genetic resources from synthetic wheat to accelerate and focus breeding outcomes is well known.”

In his recently completed a PhD project, Bhatta focused on the identification of genes and genomic regions controlling resistance to biotic and abiotic stresses in synthetic hexaploid wheat, that is, wheat created from crossing modern wheat with its ancient grass relatives. His research used rich genetic resources from synthetic wheat to identify superior primary synthetics possessing resistance to multiple stresses. It also aimed to identify the respective genes and molecular markers that can be used for market-assisted transfer of the genes into high-yielding modern wheat germplasm.

“My study sought to evaluate the variation within this novel synthetic germplasm for improved grain yield, quality and mineral content, reduced toxic heavy metal accumulation, and identify the genes contributing to better yield, end-use and nutritional quality.”

“Working in a collaborative environment with other scientists and farmers was the most enjoyable aspect of my research.”

Working under the joint supervision of Stephen Baenziger, University of Nebraska-Lincoln, and Alexey Morgounov, CIMMYT, Bhatta spent two consecutive summers conducting field research at various research sites across Turkey. The research was conducted within the framework of the International Winter Wheat Improvement Program (Turkey-CIMMYT-ICARDA). Over the course of six months, he evaluated 126 unique synthetic wheat lines developed from two introgression programs, which he selected for their genetic diversity.

“The most fascinating thing was that we were able to identify several lines that were not only resistant to multiple stresses, but also gave greater yield and quality,” says Bhatta. “These findings have a direct implication for cereal breeding programs.”

Bhatta and his collaborators recommended 17 synthetic lines that were resistant to more than five stresses, including rusts, and had a large number of favorable alleles for their use in breeding programs. They also recommended 29 common bunt resistant lines, seven high yielding drought tolerant lines, and 13 lines with a high concentration of beneficial minerals such as iron and zinc and low cadmium concentration.

“We identified that the D-genome genetic diversity of synthetics was more than 88 percent higher than in a sample of elite bread wheat cultivars,’ Bhatta explains. “The results of this study will provide valuable information for wheat genetic improvement through the inclusion of this novel genetic variation for cultivar development.”

Madhav Bhatta completed his PhD in Plant Breeding and Genetics at the University of Nebraska-Lincoln, where he was a Monsanto Beachell-Borlaug International Scholar. He is now based at the University of Wisconsin-Madison, USA, where he recently began a postdoctoral research position in the Cereal Breeding and Genetics program. He is currently working on optimizing genomic selection models for cereal breeding programs and he looks forward to future collaborations with both public and private institutions.

The seeds of the superior synthetics are now available from CIMMYT-Turkey. For more information, contact Alexey Morgounov (a.morgounov@cgiar.org).

Read more about the results of Bhatta’s investigation in the recently published articles listed below:

  1. Bhatta M., P.S. Baenizger, B. Waters, R. Poudel, V. Belamkar, J. Poland, and A. Morgounov. 2018. Genome-Wide Association Study Reveals Novel Genomic Regions Associated with 10 Grain Minerals in Synthetic Hexaploid Wheat. International Journal of Molecular Sciences, 19 (10), 3237.
  2. Bhatta M., A. Morgounov, V. Belamkar, A. Yorgancilar, and P.S. Baenziger. 2018. Genome-Wide Association Study Reveals Favorable Alleles Associated with Common Bunt Resistance in Synthetic Hexaploid Wheat. Euphytica 214 (11). 200.
  3. Bhatta M, A. Morgounov, V. Belamkar, and P. S. Baenziger. 2018. Genome-Wide Association Study Reveals Novel Genomic Regions for Grain Yield and Yield-Related Traits in Drought-Stressed Synthetic Hexaploid Wheat. International Journal of Molecular Sciences, 19 (10), 591.
  4. Bhatta M, A. Morgounov, V. Belamkar, J. Poland, and P. S. Baenziger. 2018. Unlocking the Novel Genetic Diversity and Population Structure of Synthetic Hexaploid Wheat. BMC Genomics, 19:591. https://doi.org/10.1186/s12864-018-4969-2.
  5. Morgunov A., A. Abugalieva, A. Akan, B. Akın, P.S. Baenziger, M. Bhatta et al. 2018. High-yielding Winter Synthetic Hexaploid Wheats Resistant to Multiple Diseases and Pests. Plant genetic resources, 16(3): 273-278.

City dwellers in Africa and Asia increasingly choose wheat, research shows

This blog by Mike Listman was originally posted on CIMMYT.org.

A baker makes the traditional wheat flatbread known as “naan roti” in Dinajpur, Bangladesh. (Photo: S. Mojumder/Drik/CIMMYT)

The developing world’s appetite for wheat is growing swiftly, driven in part by rising incomes, rapid urbanization and the expansion of families where both spouses work outside the house, according to a recent seminar by two international experts.

“Our research is picking up significant shifts in demand among cereals, including the increasing popularity of wheat in Asia and sub-Saharan Africa,” said Khondoker Mottaleb, socioeconomist for the International Maize and Wheat Improvement Center (CIMMYT), speaking at a seminar at the center on December 11, 2018.

In preliminary results of a study using household data from six countries in Asia and five in sub-Saharan Africa, Mottaleb and his associate, Fazleen Binti Abdul Fatah, senior lecturer at the University of Technology MARA, Malaysia, found that the households of both regions will eat more wheat by 2030, mainly in place of rice in Asia and of maize and other coarse grain cereals in Africa.

Speedy urbanization, higher incomes, population growth, and allied lifestyle changes are all driving this trend, said Fazleen. “Many urban women are working, so families are transitioning to bread and other convenient wheat-based foods and processed foods.”

A typical case according to Mottaleb is that of Bangladesh, a country whose population at 160 million is half that of the United States but with a geographical area equivalent to the US state of Ohio. The per capita GDP of Bangladesh grew from US$360 to US$1,516 during 2000-2017, and more than 35 percent of the country’s inhabitants now live in cities.

Meeting demand for wheat in Bangladesh

A 2018 paper by Mottaleb and fellow CIMMYT researchers shows that wheat consumption will increase substantially in Bangladesh by 2030 and the country needs to expand production or increase imports to meet the growing demand.

“The country purchases nearly 70 percent of its wheat at an annual cost near or exceeding US$1 billion, depending on yearly prices,” said Mottaleb. “Wheat prices are relatively low and wheat markets have been relatively stable, but if yields of a major wheat exporting country suddenly fall, say, from pest attacks or a drought, wheat markets would destabilize and prices would spike, as occurred in 2008 and 2011.”

In a 2018 study, the United Kingdom’s Agriculture and Horticulture Development Board (AHDB) cautioned that declining wheat cropping area worldwide and significant stockpiling by China — which holds nearly half the world’s wheat stocks but does not export any grain — were masking serious risk in global wheat markets.

A recent report ranked Bangladesh as the world’s fifth largest wheat importer. Since 2014-15 domestic wheat consumption there has increased by 57 percent from 4.9 million metric ton to 7.7 million metric tons. Last December, the Food and Agriculture Organization (FAO) of the United Nations forecast Bangladesh wheat import requirements of 6 million tons for this year — 34 percent above the previous five-year average following steady increases since 2012-13.

“The prevailing narrative has wealthier and more urban consumers shifting from basic foods to higher value foods, and this is doubtless occurring,” said Fazleen, “but our work shows a more nuanced scenario. In the traditional rice consuming economies in Asia, rural households are also eating more wheat, due to rapid dietary transformations.”

For Bangladesh, the researchers propose growing additional wheat on fallow and less-intensively-cropped land, as well as expanding the use of newer, high-yielding and climate-smart wheat varieties.

“Our work clearly shows the rising popularity of wheat across Asia and Africa,” said Mottaleb. “We urge international development agencies and policymakers to enhance wheat production in suitable areas, ensuring food security for the burgeoning number of people who prefer wheat and reducing dependence on risky wheat grain markets.”

In addition to the paper cited above, Mottaleb and colleagues have published recent studies on Bangladesh’s wheat production and consumption dynamics and changing food consumption patterns.

The authors thank the CGIAR Research Program on Wheat for its support for these studies.

New study confirms the nutritional and health benefits of zinc-biofortified wheat in India

A recent study by India and US scientists shows that when vulnerable young children in India consume foods with wheat-enriched zinc, the number of days they spend sick with pneumonia and vomiting significantly diminishes.

Velu Govindan (CIMMYT) inspects zinc-fortified wheat. Photo: CIMMYT files.

An estimated 26 percent of India’s population lacks adequate micronutrients in their diets. Developed through biofortification — the breeding of crop varieties whose grain features higher levels of micronutrients — high-zinc wheat can help address micronutrient deficiencies.

The results of the study, which took place over six months, confirm zinc-enhanced wheat’s potential to improve the diets and health of disadvantaged groups who consume wheat-based foods, but the authors conclude that longer-term studies are needed.

In partnership with HarvestPlus and partners in South Asia, the International Maize and Wheat Improvement Center (CIMMYT) has bred and fostered the release in the region of six zinc-enhanced varieties that are spreading among farmers and seed producers.

Click here to read the full study.

2018 Agricultural Innovation Program meeting: CIMMYT and partners’ achievements in Pakistan

Zero till wheat planting in Jaffarabad District.

By Kashif Syed, September 24

More than 70 agricultural professionals met in Islamabad, Pakistan, during September 4-5 to discuss agronomy and wheat activities under the Agricultural Innovation Program (AIP) for Pakistan. The event provided a platform for institutions involved in agronomy and the dissemination of agricultural technology and seed to share advances, discuss issues, and plan future undertakings.

“Crop productivity must be increased through research on innovative crop management techniques, varietal development and dissemination of better techniques and seed to farming communities,” said Dr. Yusuf Zafar, Chairman of PARC, addressing participants and touching upon a key theme of the event. He emphasized that precision agriculture, decision support systems, the use of drones, water productivity improvements and more widespread mechanization were on the horizon for Pakistani farmers, but that this would require active involvement of the public and private sectors.

Developments in zero tillage farming and ridge planting were highlighted in the two-day conference as conservation agriculture practices that are gaining traction in national wheat farming, according to Imtiaz Muhammad, CIMMYT representative and AIP project leader.

“In collaboration with a national network of 23 public and private partners, CIMMYT has reached more than 25,000 farmers through trainings on zero tillage, ridge planting, and direct seeded rice farming,” Imtiaz said, adding that support to farmers included nutrient management education the provision of seed planters. “These techniques are helping farmers to save water, avoid residue burning, and reduce their production costs.”

Collaboration with agricultural machinery manufacturers and other private sector actors is leading to local production of Zero Till Happy Seeders, which sow directly into unplowed fields and the residues of previous crops, according to Imtiaz. “Innovative approaches have also resulted in the production of 1,500 tons of wheat seed in 2018,” he explained.

Wheat seed production and farmers’ replacement of older varieties have progressed through local seed banks established by AIP in partnership with Pakistan’s National Rural Support Program (NRSP). Located in villages, the banks sell quality wheat seed for up to 12 percent less than local markets. “This is critical, because Pakistan’s wheat seed replacement is only 30 percent,” said Imtiaz, adding that there is a 50 percent gap between potential wheat yields and the national average yield for this crop.

The AIP will open more seed banks in remote areas of Pakistan, in conjunction with national partners. As well as producing and processing seed, the banks will provide farm machinery contract services and precision agriculture tools at subsidized rates.

Participants’ recommendations included adding straw spreaders to combine harvesters for rice, to facilitate the direct sowing of wheat after rice. They also suggested that agricultural service providers should help promote the direct seeding of rice and wheat with zero tillage implements. Participants observed that, in Baluchistan Province, support to farmers and service providers could increase the adoption of zero tillage for sowing wheat after rice and of precision land leveling, to improve irrigation efficiency and save water.

The AIP and partners will continue to promote water saving and nutrient management techniques, as well as building the capacity of farmers, national staff and agricultural service providers. Finally, those attending recommended that, for its second phase, AIP focus on the biofortification of wheat and rice, climate smart agriculture, decision support tools, women in farming, knowledge delivery, appropriate mechanization, nutrient management, weed management and water productivity.

AIP is the result of the combined efforts of the Pakistan Agriculture Research Council (PARC), the International Livestock Research Institute (ILRI), the International Center for Agricultural Research in the Dry Areas (ICARDA), the International Rice Research Institute (IRRI), the World Vegetable Center (AVRDC), the University of California at Davis, and the International Maize and Wheat Improvement Center (CIMMYT). It is funded by the United States Agency for International Development (USAID). With these national and international partners on board, AIP continues to improve Pakistan’s agricultural productivity and economy.

Q+A with Iván Ortíz-Monasterio on nitrogen dosages and greenhouse gases

Iván Ortíz-Monasterio, expert on sustainable intensification and wheat crop management at the International Maize and Wheat Improvement Center (CIMMYT), recently took part in a study detailing the detriments of excess fertilizer use and the benefits of more precise dosages.

In the following interview, he discusses the overuse of nitrogen fertilizer and related consequences, his experience with farmers, and his outlook for the future. According to Ortíz-Monasterio and study co-authors, research on wheat in the Yaqui Valley, state of Sonora, northwestern Mexico, and home to CIMMYT’s Norman E. Borlaug Experiment Station (CENEB), has direct implications for wheat crop management worldwide.

“The Yaqui Valley is agro-climatically representative of areas where 40 percent of the world’s wheat is grown, including places like the Indo-Gangetic Plains of India and Pakistan, the Nile Delta in Egypt, and the wheat lands of China,” said Ortíz-Monasterio.

  1. A key finding of the new publication was that, after a certain point, applying more nitrogen fertilizer does not increase yields, making excessive applications essentially a drain on farmers’ resources. Why then do farmers continue to apply more fertilizer than the crop needs?

Well there is a risk, if you under-apply N fertilizer, your yield goes down. Farmers are afraid that the yield will be lower and that their profit will be lower. The cost of under-applying for them is greater than the cost of over-applying, because they’re not paying all the costs of over applying. Those costs include the environmental impacts associated with greenhouse gas emissions, at a regional scale in the case of the Yaqui Valley because of nitrification of the Sea of Cortez, and at a local level due to contamination of the water table. All these costs are passed on to society. If we passed them on to farmers, then they would be more concerned about over-applying nitrogen fertilizers.

-Do you think farmers becoming more concerned is something that could happen?

Well there are starting to be more regulations in Europe. In the UK, farmers cannot apply any nitrogen before or at sowing; they can apply fertilizer only once the plant is about 15 centimeters tall. In other parts of Europe, like Germany, farmers cannot apply more than 150 kilograms of nitrogen on wheat, so it’s happening in other parts of the world. The government of Mexico and others are making commitments to reduce nitrous oxide emissions by 20 percent by 2030 and, in the case of agriculture, the main source of nitrous oxide is nitrogen fertilizer. To meet such commitments, governments will have to take policy action so, yes; I think there’s a good chance something will happen.

  1. There are technologies that can help farmers know precisely when to apply fertilizer and how much, for optimal crop yield and nitrogen use. Do many farmers use them? Why or why not?

NDVI (normalized difference vegetative index) map. Photo: CIMMYT.

Something interesting to me is what’s happening right now. For the last 10 years, we’ve been working with Yaqui Valley farmers to test and promote hand-held sensors and hiring farm advisors paid with government money who provide this service free to farmers, and adoption was high. Then the government removed the subsidy, expecting farmers to begin covering the cost, but

farmers didn’t want to pay for it.

Then a company that uses drones approached me and other researchers in the region and requested our help to convert wheat crop sensor data obtained using airborne drones to recommended fertilizer dosages. We agreed and, in their first year of operation, farmers growing wheat on 1,000 hectares paid for this service. I don’t know what it is—maybe seeing a colorful map is more sexy—but farmers seem to be willing to pay if you fly a drone to collect the data instead of having a farm advisor walk over the field. But it’s great! In the past we relied on the government to transfer the technology and now we have this  great example of a private-public partnership, where a company is helping to transfer the technology and making a profit, so that will make it sustainable. I’m very excited about that!

  1. Does CIMMYT have a plan to increase adoption of these technologies?

A CIMMYT technician uses a hand-held sensor to measure NDVI (normalized difference vegetative index) in a wheat field at the center’s CENEB experiment station near Ciudad Obregón, Sonora, northern Mexico. Photo: CIMMYT.

We’re not married to one technology, but need to work with all of them. You know we started with Greekseeker, which is a ground-based sensor, and now we’re also working with drones, with manned airplanes mounted with cameras, and even satellite images. So, there are four different ways to collect the data, and we’ve seen that the Greenseeker results correlate well with all of them, so the technology we developed originally for Greenseeker can be used with all the other platforms.

  1. Are you optimistic that farmers can shift their perceptions in this area and significantly reduce their nitrogen use?

I think we’re moving in that direction, but slowly. We need policy help from the government. Officials need to give some type of incentive to farmers to use the technology, because when farmers do something different they see it as a risk. To compensate for that risk, give them a carrot, rather than a stick, and I think that will help us move the technology faster.

Global grain research and food industry experts meet to address rising malnutrition

The world’s quickly-rising population needs not only more food but healthier, more nutritious food, according to Julie Miller Jones, Professor Emerita at St. Catherine University, and Carlos Guzmán, who leads wheat quality research at CIMMYT. Photo: CIMMYT/ Mike Listman

MEXICO CITY (CIMMYT) — Malnutrition is rising again and becoming more complex, according to the director-general of the world’s leading public maize and wheat research center.

“After declining for nearly a decade to around 770 million, the number of hungry people has increased in the last two years to more than 850 million,” said Martin Kropff, director general of the International Maize and Wheat Improvement Center (CIMMYT), in the opening address of the 4th Latin American Cereals Conference.

“Those people suffer from calorie malnutrition and go to bed hungry at night, which is a terrible thing,” Kropff added. “But the diets of 2 billion persons worldwide lack essential micronutrients — Vitamin A, iron, or zinc — and this especially affects the health and development of children under 5 years old.”

Kropff noted that some 650 million people are obese, and the number is increasing. “All these nutrition issues are interconnected, and are driven by rising population, global conflicts, and — for obesity — increasing prosperity, in developed and emerging economies.”

“The solution? Good, healthy diets,” said Kropff, “which in turn depend on having enough food available, but also diverse crops and food types and consumer education on healthy eating.”

Held in Mexico City during 11-14 March and co-organized by CIMMYT and the International Association for Cereal Science and Technology (ICC), the 4th Latin American Cereals Conference has drawn more than 220 participants from 46 countries, including professionals in agricultural science and production, the food industry, regulatory agencies, and trade associations.

“We are dedicated to spreading information about cereal science and technology, processing, and the health benefits of cereals,” said Hamit Köksel, president of the ICC and professor at Hacettepe University, Turkey, to open the event. “Regarding the latter, we should increase our whole grain consumption.”

Köksel added that ICC has more than 10,000 subscribers in 85 countries.

New zinc biofortified maize variety BIO-MZN01, recently released in Colombia. Photo: CIMMYT archives

New zinc biofortified maize variety BIO-MZN01,
recently released in Colombia. Photo: CIMMYT archives

Breeding micronutrient-dense cereals

One way to improve the nutrition and health of the poor who cannot afford dietary supplements or diverse foods is through “biofortification” of the staple crops that comprise much of their diets.

Drawing upon landraces and diverse other sources in maize and wheat’s genetic pools and applying innovative breeding, CIMMYT has developed high-yielding maize and wheat lines and varieties that feature enhanced levels of grain zinc and are being used in breeding programs worldwide.

“In the last four years, the national research programs of Bangladesh, India, and Pakistan have released six zinc-biofortified wheat varieties derived from CIMMYT research,” said Hans Braun, director of the center’s global wheat program. “Zinc-Shakthi, an early-maturing wheat variety released in India in 2014 whose grain features 40 percent more zinc than conventional varieties, is already grown by more than 50,000 smallholder farmers in the Northeastern Gangetic Plains of India.”

CIMMYT is focusing on enhancing the levels of provitamin A and zinc in the maize germplasm adapted to sub-Saharan Africa, Asia, and Latin America. Improved quality protein maize (QPM) varieties, whose grain features enhanced levels of two essential amino acids, lysine and tryptophan,  is another major biofortified maize that is grown worldwide, according to Prasanna Boddupalli, director of CIMMYT’s global maize program.

“Quality protein maize varieties are grown by farmers on 1.2 million hectares in Africa, Asia, and Latin America,” said Prasanna, in his presentation, adding that provitamin-A-enriched maize varieties have also been released in several countries in Africa, besides Asia.

A major partner in these efforts is HarvestPlus, part of the CGIAR Research Program on Agriculture for Nutrition and Health (A4NH), which supports the development and promotion of the biofortified crop varieties and related research.

“Biofortified crops have been released in 60 countries,” said Wolfgang Pfeiffer, HarvestPlus global director for product development and commercialization, speaking at the conference. “The pressing need now is to ‘mainstream’ biofortification, making it a standard component of breeding programs and food systems.”

Whole grains are good for you

A central issue on the conference agenda is promoting awareness about the importance of healthy diets and the role of whole grains.

“Participants will discuss the large body of published studies showing that whole grain foods, including processed ones, are associated with a significantly reduced risk of chronic diseases and obesity,” said Carlos Guzmán, who leads wheat quality research at CIMMYT and helped organize the conference. “There is a global movement to promote the consumption of whole grains and the food industry worldwide is responding to rising consumer demand for whole grain products.”

Guzmán also thanked the conference sponsors: Bimbo, Bastak Instruments, Brabender, Foss, Chopin Technologies, Perten, Stable Micro Systems Scientific Instruments, Cereal Partners Worldwide Nestlé and General Mills, Stern Ingredients-Mexico, World Grain, the CGIAR Research Program on Wheat, and Megazyme.

Goat grass gives wheat breeders an edge

31 January 2018
by Laura Strugnell

A commentary published on 30 January in the leading science journal Nature Plants highlights the importance of an ancient grass species for wheat breeding. The commentary was sparked by the recent publication of a reference genome from Aegilops tauschii, also called goat grass.

Bread wheat was created some 10,000 years ago by a natural cross of more simple, primitive wheats with a sub-species of goat grass. As such, goat grass genes constitute a major component of the very large wheat genome. The sequencing of goat grass DNA opens the way for wheat breeders to apply a number of advanced approaches to improve the speed and precision of wheat breeding for important traits that may be found in the goat grass segment of the wheat genome.

The International Maize and Wheat Improvement Center (CIMMYT) and the International Centre for Agricultural Research in the Dry Areas (ICARDA) have produced many wheat x grass crosses, recreating the original, natural cross but using other goat grass species and thus greatly expanding wheat’s diversity. Wheat lines derived from those crosses have since been used in breeding programs worldwide and have helped farmers to boost yields by up to 20 percent. Goat grass is known for being highly adaptable and disease tolerant, so the crosses endow wheat with similar qualities. Varieties from these crosses make up over 30 percent of international seed stores.

Researchers expect that the sequencing of this grass species’ DNA will facilitate advanced approaches such as “speed breeding” – a technique that uses controlled variables to achieve up to seven rounds of wheat crops in one year. This will help allow wheat breeding to keep up with the rising global demand for the crop and to address the challenges of new, virulent diseases and more extreme weather.

Read the Nature Plants article: The goat grass genome’s role in wheat improvement. 2018. Rasheed, A., Ogbonnaya, F.C., Lagudah, E., Appels, R., He, Z. In: Nature Plants.