Scientists Publish the First Genetic Radiography of Pasta Wheat from 21 Mediterranean CountriesMarch 8, 2017
A team of scientists from Spain, together with colleagues from the University of Granada (UGR), has carried out the first durum wheat genetic, phenotypic, and geographic adaptation study to date. The research team has phenotyped a collection of 172 of durum wheat local varieties (landraces) from 21 Mediterranean countries, cultivated along with 20 modern varieties in 6 environments of the north and south of Spain.
Phenotypic traits studied in this work include, among others, flowering time, biomass, drought resistance, foliar architecture, photosynthesis, proteins, yield, and yield components. The genetic (or genotyping) study was carried out with 44 microsatellites (SSRs) that identified 448 alleles (each of the alternative forms that the same gene may have, which differ in their sequence and that can be manifested in specific modifications of the function that said gene has). Out of 448 alleles, 226 appeared with a frequency lower than 5%, and there were 10 alleles per locus on average (a fixed position on a chromosome, such as the position of a gene or a genetic marker).
The statistical study allowed the division of wheat into five genetic subpopulations, one with all modern cultivars, and another four closely related to the geographical origin of local varieties: Eastern Mediterranean, Eastern Balkans and Turkey, Western Balkans and Egypt, and Western Mediterranean. Results of the study showed that with the correct amount of markers, correctly distributing them in the genome, and adequate phenotyping, great similarities can be found between genetic distances and the adaptive response of durum wheat to different environments, including those derived from climate change.
For more details, read the news article at the UGR website.
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
See more articles:
News from Around the World
- U.S. National Academies Address PLOS One Article's Claims about the GE Crops Report
- Swaziland Parliament Commits to Enact Enabling Biosafety Legislations for GMOs
- UCLA Scientists Develop New Approach to Understand Plant Growth
- Study Solves Longstanding Mystery of Photosynthesis
- Report Shows that Biotech Soybean and Maize Can Generate US$150 million in Bolivia
- Researchers Find Wheat Bread Genome Dark Matter
- Nutrition Expert Says GM Crops Can Help the Philippines Meet Nutritional Requirements
- Scientists Publish the First Genetic Radiography of Pasta Wheat from 21 Mediterranean Countries
- Cotton GaRPL18 Regulates Resistance to Verticillium Wilt
- Cry10Aa Gene Confers Resistance to Cotton Boll Weevil in Transgenic Cotton
Plant Breeding Innovations
- Gene Editing in Chrysanthemum Using Multicopy Transgenes as Targets
- A High-Efficiency CRISPR-Cas9 System for Targeted Mutagenesis in Cotton
Beyond Crop Biotech
- Knockdown of Northern Armyworm Chitinase Genes thru Oral Delivery of RNAi Effectors
- UF Plant Science Symposium
- Retaking the Field: Strengthening the Science of Farm and Food Production
Read the latest:
- Crop Biotech Update (June 29, 2022)
- Genome Editing Supplement (June 22, 2022)
- Gene Drive Supplement (June 29, 2022)
Subscribe to CBU: