ABSTRACT Isolates of Puccinia triticina collected from durum wheat from Argentina, Chile, Ethiopia, France, Mexico, Spain, and the United States were analyzed with 11 simple sequence repeat (SSR) markers in order to determine the genetic relationship among isolates. These isolates also were compared with P. triticina isolates from common wheat from North America, and an isolate collected from A...

The S genome of Aegilops speltoides is closely related to the B and G genomes of polyploid wheats. However, little work has been reported on the genetic relationships between the S-genome and B-genome chromosomes of polyploid wheat. Here, we report the isolation of a set of disomic substitutions (DS) of S-genome chromosomes for the B-genome chromosomes and their effects on gametophytic and spor...

Meiotic pairing between homoeologous chromosomes in polyploid wheat is inhibited by the Ph1 locus on the long arm of chromosome 5 in the B genome. Aegilops speltoides (genomes SS), the closest relative of the progenitor of the wheat B genome, is polymorphic for genetic suppression of Ph1. Using this polymorphism, two major suppressor loci, Su1-Ph1 and Su2-Ph1, have been mapped in Ae. speltoides...

the quality traits of triticum dicoccoides ku-13441 (triticum turgidum l. var. dicoccoides (aabb, 2n= 4x= 28)) were analyzed by mixograph, and the results showed that t. dicoccoides ku-13441 had desirable qualities in gluten strength and flour stirring tolerance. subsequently, seventeen novel full-orf α-gliadin genes and thirty-five pseudogenes were cloned and sequenced from t. dicoccoides ku-1...

salinity is one of the important problems in the world's agricultural land that each year millions tons of salt from the soil through crop irrigation arrive to arable lands. wheat is one of the first and most important cereal crops in the world that provide staple food for more than a third of the world's population. using modern genetic methods such as sequencing provided quickly and...

We have recently produced EMS-induced knock-out mutations at the Gc2 locus that were derived from Ae. sharonensis. Our data suggest that the Gc2 mutant is a knock-out of the gene encoding for the breaking agent. For analyzing the interactions of the Gc2 mutants with other Gc genes from different Aegilops species, we have crossed stocks with functional and mutant Gc2 genes with stocks having Gc ...

From a wild diploid species that is a relative of wheat, Aegilops speltoides, a 301-bp repeat containing 16 copies of a CAA microsatellite was isolated. Southern blot and fluorescence in situ hybridization revealed that approximately 250 bp of the sequence is tandemly arrayed at the centromere regions of A- and B-genome chromosomes of common wheat and rye chromosomes. Although the DNA sequence ...