Skip to main content
eScholarship
Open Access Publications from the University of California

Identification of wheat gene Sr35 that confers resistance to Ug99 stem rust race group

  • Author(s): Saintenac, C
  • Zhang, W
  • Salcedo, A
  • Rouse, MN
  • Trick, HN
  • Akhunov, E
  • Dubcovsky, J
  • et al.

Published Web Location

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4748951/
No data is associated with this publication.
Abstract

Wheat stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), is a devastating disease that can cause severe yield losses. A previously uncharacterized Pgt race, designated Ug99, has overcome most of the widely used resistance genes and is threatening major wheat production areas. Here, we demonstrate that the Sr35 gene from Triticum monococcum is a coiled-coil, nucleotide-binding, leucine-rich repeat gene that confers near immunity to Ug99 and related races. This gene is absent in the A-genome diploid donor and in polyploid wheat but is effective when transferred from T. monococcum to polyploid wheat. The cloning of Sr35 opens the door to the use of biotechnological approaches to control this devastating disease and to analyses of the molecular interactions that define the wheat-rust pathosystem.

Many UC-authored scholarly publications are freely available on this site because of the UC's open access policies. Let us know how this access is important for you.

Item not freely available? Link broken?
Report a problem accessing this item