Introgression of the Genome Into Wheat Detected by Chromosome-Specific Kompetitive Allele Specific PCR Markers.

(2 = 28, A A GG) is a tetraploid wild relative species with great potential to increase the genetic diversity of hexaploid wheat (2 = 42, AABBDD) for various important agronomic traits. A breeding scheme that propagated advanced backcrossed populations of wheat- introgression lines through further backcrossing and self-fertilisation resulted in the generation of 99 introgression lines (ILs) that carried 309 homozygous segments from the A and G subgenomes of . These introgressions contained 89 and 74 unique segments from the A and G subgenomes, respectively.

Resistance to wheat rusts identified in wheat/ chromosome introgressions.

Wheat ( L.) rusts are a worldwide production problem. Plant breeders have used genetic resistance to combat these fungi.

Generation of Doubled Haploid Wheat- Introgression Lines and Their Characterisation Using Chromosome-Specific KASP Markers.

Wheat is one of the most important food and protein sources in the world and although, in recent years wheat breeders have achieved yield gains, they are not sufficient to meet the demands of an ever-growing population. Development of high yielding wheat varieties, resilient to abiotic and biotic stress resulting from climate change, has been limited by wheat's narrow genetic base. In contrast to wheat, the wild relatives of wheat provide a vast reservoir of genetic variation for most, if not all, agronomic traits.

Development of a New A -Genome-Specific Single Nucleotide Polymorphism Marker Set for the Molecular Characterization of Wheat-Triticum monococcum Introgression Lines.

We identified 1247 polymorphic single nucleotide polymorphisms between Triticum monococcum and wheat. We identified 191 markers validated across all seven chromosomes of T. monococcum.

Variation in key leaf photosynthetic traits across wheat wild relatives is accession dependent not species dependent.

The wild relatives of modern wheat represent an underutilized source of genetic and phenotypic diversity and are of interest in breeding owing to their wide adaptation to diverse environments. Leaf photosynthetic traits underpin the rate of production of biomass and yield and have not been systematically explored in the wheat relatives. This paper identifies and quantifies the phenotypic variation in photosynthetic, stomatal, and morphological traits in up to 88 wheat wild relative accessions across five genera.

Development of Wheat- Introgression Lines and Their Characterization Using Genome-Specific KASP Markers.

L. [syn. (Greuter) Hammer], is a diploid wild relative of wheat (2n = 2x = 14, CC) and a valuable source for new genetic diversity for wheat improvement.

Exploiting the genome of Thinopyrum elongatum to expand the gene pool of hexaploid wheat.

One hundred and thirty four introgressions from Thinopyrum elongatum have been transferred into a wheat background and were characterised using 263 SNP markers. Species within the genus Thinopyrum have been shown to carry genetic variation for a very wide range of traits including biotic and abiotic stresses and quality. Research has shown that one of the species within this genus, Th.

The Use of Pentaploid Crosses for the Introgression of and D-Genome Chromosome Segments Into Durum Wheat.

The wild relatives of wheat provide an important source of genetic variation for wheat improvement. Much of the work in the past aimed at transferring genetic variation from wild relatives into wheat has relied on the exploitation of the mutant, located on the long arm of chromosome 5B. This mutation allows homologous recombination to occur between chromosomes from related but different genomes, e.

Rapid identification of homozygosity and site of wild relative introgressions in wheat through chromosome-specific KASP genotyping assays.

For future food security, it is important that wheat, one of the most widely consumed crops in the world, can survive the threat of abiotic and biotic stresses. New genetic variation is currently being introduced into wheat through introgressions from its wild relatives. For trait discovery, it is necessary that each introgression is homozygous and hence stable.

Development and characterisation of interspecific hybrid lines with genome-wide introgressions from Triticum timopheevii in a hexaploid wheat background.

Background: Triticum timopheevii (2n = 4x = 28; AAGG), is an important source for new genetic variation for wheat improvement with genes for potential disease resistance and salt tolerance. By generating a range of interspecific hybrid lines, T. timopheevii can contribute to wheat's narrow gene-pool and be practically utilised in wheat breeding programmes.

Development of Stable Homozygous Wheat/ () Introgression Lines and Their Cytogenetic and Molecular Characterization.

Wheat is one of the world's most important sources of food. However, due to its evolution its genetic base has narrowed, which is severely limiting the ability of breeders to develop new higher yielding varieties that can adapt to the changing environment. In contrast to wheat, its wild relatives provide a vast reservoir of genetic variability for most, if not all, agronomically important traits.

Development and validation of an exome-based SNP marker set for identification of the St, J and J genomes of Thinopyrym intermedium in a wheat background.

Cytogenetic analysis and array-based SNP genotyping of wheat- Th. intermedium introgression lines allowed identification of 634 chromosome-specific SNP markers across all twenty-one chromosomes of Th. intermedium (StJ J , 2 n  = 6 x  = 42).

Detection of Introgressions in Wheat and Development of a Panel of Interspecific Introgression Lines.

(2 = 2 = 14, AA), the A genome donor of wheat, is an important source for new genetic variation for wheat improvement due to its high photosynthetic rate and disease resistance. By facilitating the generation of genome-wide introgressions leading to a variety of different wheat- translocation lines, can be practically utilized in wheat improvement. Previous studies that have generated such introgression lines have been unable to successfully use cytological methods to detect the presence of in these lines.

Introgression of Aegilops speltoides segments in Triticum aestivum and the effect of the gametocidal genes.

Background And Aims: Bread wheat (Triticum aestivum) has been through a severe genetic bottleneck as a result of its evolution and domestication. It is therefore essential that new sources of genetic variation are generated and utilized. This study aimed to generate genome-wide introgressed segments from Aegilops speltoides.

Characterisation of Thinopyrum bessarabicum chromosomes through genome-wide introgressions into wheat.

Genome-wide introgressions of Thinopyrum bessarabicum into wheat resulted in 12 recombinant lines. Cytological and molecular techniques allowed mapping of 1150 SNP markers across all seven chromosomes of the J genome. Thinopyrum bessarabicum (2n = 2x = 14, JJ) is an important source for new genetic variation for wheat improvement due to its salinity tolerance and disease resistance.