Barley (Hordeum vulgare L.) is a crop of great economic importance in Latin America, especially as a food source in the Andean region with small producers and as a value chain for malted barley in the Atlantic plains with large companies. Diseases are the main limitation of the crop, significantly affecting yields. The genomic tools available in developed countries to face the disease find limitations in Latin America given the heterogeneous distribution of technological resources and trained human resources.
The project allowed the incorporation of resistance already mapped to local adapted germplasm, through assisted selection. The source selected for SB was the BCD47 variety that presents a QTL (quantitative trait locus) of resistance on chromosome 1H and the adapted material the cultivars INIA Ceibo and INIA Aromo. Regarding YR, the source of resistance was the iBison 95-2 line, which has resistance QTLs on chromosomes 1H, 4H and 5H, using cultivars adapted to Peru as receptor parents. In addition, germplasm with pyramids of built-in resistance sources was developed. From the crosses between the SB-resistant material (Ambev 293) and the adapted and susceptible cultivar (INIA Arrayán), F1 were obtained, which were later crossed with RC2F4 lines. Training and cooperation schemes were implemented among the participants, based on the use of genomic analysis tools in the routine process of genetic improvement.
1. Germplasm was developed incorporating a previously detected QTL for SB.
2. Genetic resistance to SB, YR and RH was detected in regions of the genome that had not been previously identified.
3. A process of building pyramids of resistance began for SB
4. A network of collaboration and technical support was consolidated between project participants and other collaborators.
5. Highly qualified human resources were trained on the subject of the use of genomic tools in support of genetic improvement.
Basic Genetics
Impact
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Impact
Initiatives
Dashboard
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