Establishing a molecular breeding program based on the aluminum tolerance genes, AltSB, and the P efficiency QTL, Pup-1, for increasing sorghum production in Sub-Saharan Africa - Sorghum MB
Duration: 01/Apr/2010 - 31/Mar/2014
Locations: Eastern and Southern Africa / Kenya / West and Central Africa / Mali / Niger
Donor: CGIAR,Generation Challenge Program (GCP)/CIMMYT-Mexico
CGIAR Research Program: Dryland Cereals
In Africa, a combination of soil constraints and a lack of adapted crop cultivars are clearly two of the most important factors responsible for low grain yield. Low productivity is a serious problem in many parts of Africa where sorghum is a staple food supporting millions of the rural poor. Within the SorghumPup1 project in this Comparative Genomics Challenge Initiative we will attempt to validate homologs of the major rice P uptake QTL, Pup1, functioning as P deficiency tolerance genes in sorghum, and investigate a similar role for the major Al tolerance gene, AltSB. If successful, we will develop molecular markers for Pup1 validated homologs for marker assisted selection for P deficiency tolerance in sorghum. We are also developing and validating gene-specific markers for AltSB within other competitive GCP projects. The project described here implements a molecular breeding program targeting Mali, Niger and Kenya using random mating ms3 populations (RMPs) for the eventual development of improved varieties and breeding materials with Al tolerance and improved performance under low P stress.