The objective of this study was to determine the varietal adoption of wheat in Nepal and Bangladesh using DNA fingerprinting technology. Breeders seeds including landraces and denotified varieties were genotyped for reference library construction. Wheat grain samples collected from farmers’ field were genotyped using DArTseq-based single nucleotide polymorphism (SNP) markers and mapped to the reference library
Project associated with Bangladesh Wheat and Maize Research Institute (BWMRI) and Nepal Agricultural Research Council
(NARC) for sample collection and processing and Diversity Arrays Technology Pty Ltd (DArT) for genotyping services
Bangladesh: The findings of this study revealed that BARI Gorn 25 (29%) was the most common variety preferred amongst farm­ers and was found in all six divisions under study. This variety is leaf rust and blight resistant and can tolerate high salinity and heat. The next most common varieties were BARI Gorn 24 (23%) also known as “Prodip” and BARI Gorn 26 (16%) followed by the less common varieties, Pavon 76, BARI Gorn 28, BARI Gorn 30, and others
Nepal: The findings revealed that Gautam (20%) and Vijay (19%) were the most popularly grown wheat varieties. Gautam exhib­its resistance to leaf rust and yellow rust and is tolerant to spot blotch whereas Vijay is Ug99 and leaf rust resistant