Diversifying crops for food and nutrition security - a case of teff
- 12 October 2015
- journal article
- review article
- Published by Wiley in Biological Reviews
- Vol. 92 (1), 188-198
- https://doi.org/10.1111/brv.12225
Abstract
There are more than 50000 known edible plants in the world, yet two-thirds of global plant-derived food is provided by only three major cereals - maize (Zea mays), wheat (Triticum aestivum) and rice (Oryza sativa). The dominance of this triad, now considered truly global food commodities, has led to a decline in the number of crop species contributing to global food supplies. Our dependence on only a few crop species limits our capability to deal with challenges posed by the adverse effects of climate change and the consequences of dietary imbalance. Emerging evidence suggests that climate change will cause shifts in crop production and yield loss due to more unpredictable and hostile weather patterns. One solution to this problem is through the wider use of underutilised (also called orphan or minor) crops to diversify agricultural systems and food sources. In addition to being highly nutritious, underutilised crops are resilient in natural and agricultural conditions, making them a suitable surrogate to the major crops. One such crop is teff [Eragrostis tef (Zucc.) Trotter], a warm-season annual cereal with the tiniest grain in the world. Native to Ethiopia and often the sustenance for local small farmers, teff thrives in both moisture-stressed and waterlogged soil conditions, making it a dependable staple within and beyond its current centre of origin. Today, teff is deemed a healthy wheat alternative in the West and is sought-after by health aficionados and those with coeliac disease or gluten sensitivity. The blooming market for healthy food is breathing new life into this underutilised crop, which has received relatively limited attention from mainstream research perhaps due to its 'orphan crop' status. This review presents the past, present and future of an ancient grain with a potential beyond its size.Keywords
This publication has 66 references indexed in Scilit:
- Potential of Underutilized Traditional Vegetables and Legume Crops to Contribute to Food and Nutritional Security, Income and More Sustainable Production SystemsSustainability, 2014
- Yield Trends Are Insufficient to Double Global Crop Production by 2050PLOS ONE, 2013
- High-Throughput Discovery of Mutations in Tef Semi-Dwarfing Genes by Next-Generation Sequencing AnalysisGenetics, 2012
- Increasing Food Production in Africa by Boosting the Productivity of Understudied CropsAgronomy, 2012
- Haplotype Analysis and Linkage Disequilibrium at Five Loci inEragrostis tefG3 Genes|Genomes|Genetics, 2012
- Next-generation sequencing technologies and their implications for crop genetics and breedingTrends in Biotechnology, 2009
- Evaluation of next generation sequencing platforms for population targeted sequencing studiesGenome Biology, 2009
- QTL mapping of agronomic traits in tef [Eragrostis tef(Zucc) Trotter]BMC Plant Biology, 2007
- The origin and evolution of Eragrostis tef (Poaceae) and related polyploids: evidence from nuclear waxy and plastid rps16American Journal of Botany, 2003
- Amplified Fragment Length Polymorphism Analysis of Tef [ Eragrostis tef (Zucc.) Trotter]Crop Science, 1999