Stem Rust Resistance in a Geographically Diverse Collection of Spring Wheat Lines Collected from Across Africa.

ABSTRACT: Following the emergence of the Ug99 lineage of Puccinia graminis f. sp. tritici (Pgt) a collective international effort has been undertaken to identify new sources of wheat stem rust resistance effective against these races. Analyses were undertaken in a collection of wheat genotypes gathered from across Africa to identify stem rust resistance effective against the Pgt races found in Eastern and Southern Africa. The African wheat collection consisted of historic genotypes collected in Kenya, South Africa, Ethiopia, Sudan, Zambia, Morocco, and Tunisia, and current South African breeding lines. Both Bayesian cluster and principal coordinate analyses placed the wheat lines from Sudan in a distinct group, but indicated a degree of genetic relatedness among the other wheat lines despite origina

SUBMITTER: Prins R 

PROVIDER: S-EPMC4939729 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature