Characterization of a wheat-tetraploid Thinopyrum elongatum 1E(1D) substitution line K17-841-1 by cytological and phenotypic analysis and developed molecular markers.

ABSTRACT: BACKGROUND:Tetraploid Thinopyrum elongatum (2n = 4x = 28) is a promising source of useful genes, including those related to adaptability and resistance to diverse biotic (Fusarium head blight, rust, powdery mildew, and yellow dwarf virus) and abiotic (cold, drought, and salt) stresses. However, gene transfer rates are low for this species and relatively few species-specific molecular markers are available. RESULTS:The wheat-tetraploid Th. elongatum line K17-841-1 derived from a cross between a hexaploid Trititrigia and Sichuan wheat cultivars was characterized based on sequential genomic and fluorescence in situ hybridizations and simple sequence repeat markers. We revealed that K17-841-1 is a 1E (1D) chromosomal substitution line that is highly resistant to stripe rust pathogen strains pr

SUBMITTER: Li D 

PROVIDER: S-EPMC6905003 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature