Innovation – Open view page
General information
| Innovation ID | 282 |
| Version ID | 212 |
| Innovation Title | Potato varieties Tigoni & Shangi with extreme resistance to late blight disease transformed with 3 R genes from wild relatives |
| Innovation description | 3 R (three resistance genes to Late Blight) genes was introduced as a stack made of genes from wild relatives of S. tuberosum (RB and Rpi-blb2 from S. bulbocastanum and Rpi-vnt1.1 from S. venturii) into African farmer-preferred potato varieties ‘Tigoni’ and Shangi. The resistance of 3R transgenic events of both varieties was characterized by a total absence of symptoms of Late Blight disease after detached-leaf and whole-plant assays indicating a successful defense response. |
| Reporting Staff | Marc Ghislain (CIP), Erick Magembe (CIP), Ethel Webi (CIP) |
| Year (Reporting) | 2019 |
| Reporting status | Approved |
| Innovation Type | Genetic (variety and breeds) |
| Number of varieties | 2 |
Stage reached
| Stage of Innovation | Stage 1: discovery/proof of concept |
| Year (Stage) | 2019 |
| Stage Description | Transgenic plants were developed and tested under lab and greenhouse conditions to confirm robust resistance to late blight. The two varieties are very popular in Kenya and are being grown in East Africa. The transgenic forms will have to go through regulatory testing in confined field trials. |
| Has a lead organization | yes |
| Lead Organization | International Potato Center |
| Top 5 contributors | Jomo-Kenyatta University of Agriculture and Technology |
Contributions and mapping
| All partners | International Potato Center-CGIAR Center/Program (Center); Jomo-Kenyatta University of Agriculture and Technology-Academic Institutions (universities, colleges, etc.); Jomo-Kenyatta University of Agriculture and Technology-Academic Institutions (universities, colleges, etc.) |
| Main CGIAR portfolio | CGIAR Research Program on Roots, Tubers and Bananas |
| Flagship project | FP1-Discovery research for enhanced utilization of RTB genetic resources |
| Cluster | DI1.3-Genetically engineered RTB varieties with game-changing traits |
| Other CGIAR portfolios-Flagships-Clusters |
Scope
| Geographic scope | Regional |
| Regions | Eastern Africa |
| Countries |
Targeted outcomes
| Main Sub-IDO | Enhanced genetic gain |
| Other Sub-IDO | |
| Other Sub-IDO |
Evidences
| Evidences | "Ethel Webi, Daniel Kariuki, Johnson Kinyua, Anne Njoroge, Marc Ghislain, Erick Magembe. (18/9/2019). Extreme resistance to late blight disease by transferring 3 R genes from wild relatives into African farmer-preferred potato varieties. African journal of biotechnology, 18 (29), pp. 845-856." |
Linked Elements
| Milestones |
| Outcome Impact Case |
| Policy |