Modified screening method of middle american dry bean genotypes reveals new genomic regions on Pv10 associated with anthracnose resistance.

Anthracnose, caused by the fungal pathogen (Sacc. & Magnus) Lams.-Scrib.

New genomic regions associated with white mold resistance in dry bean using a MAGIC population.

Dry bean (Phaseolus vulgaris L.) production in many regions is threatened by white mold (WM) [Sclerotinia sclerotiorum (Lib.) de Bary].

(PSbMV) Risk Analysis of Field Pea Based on Susceptibility, Yield Loss, and Seed Transmission.

(PSbMV), a nonpersistently aphid-transmitted potyvirus, has been reported in field pea ( L.)-growing regions worldwide. In 2014, PSbMV was first identified in field peas in North Dakota, U.

Using Breeding Populations With a Dual Purpose: Cultivar Development and Gene Mapping-A Case Study Using Resistance to Common Bacterial Blight in Dry Bean ( L.).

Dry bean ( L.) is an important worldwide legume crop with low to moderate levels of resistance to common bacterial blight (CBB) caused by pv. .

Dry Bean and Anthracnose Development From Seeds With Varying Symptom Severity.

Anthracnose, caused by the fungal pathogen , is a damaging seed-transmitted disease of dry beans that causes reduced seed quality and yield. Seed-to-seedling transmission of has been documented as high as 15% in asymptomatic seeds under greenhouse conditions. Increasing pathogen colonization in seeds has been correlated with increasing anthracnose seed symptoms via quantitative PCR (qPCR), but stem colonization has not been quantified.

Genotypes and Genomic Regions Associated With Resistance in Common Bean.

Kühn (teleomorph ) is an important root rot pathogen of common bean ( L.). To uncover genetic factors associated with resistance to the pathogen, the Andean (ADP; = 273) and Middle American (MDP; = 279) diversity panels, which represent much of the genetic diversity known in cultivated common bean, were screened in the greenhouse using anastomosis group 2-2.

High-resolution crossover mapping reveals similarities and differences of male and female recombination in maize.

Meiotic crossovers (COs) are not uniformly distributed across the genome. Factors affecting this phenomenon are not well understood. Although many species exhibit large differences in CO numbers between sexes, sex-specific aspects of CO landscape are particularly poorly elucidated.

Infestation and Quantification of Ochratoxigenic Fungi in Barley and Wheat Naturally Contaminated with Ochratoxin A.

Cereal grains are a significant source of ochratoxin A (OTA) in the human diet. Multiple ochratoxigenic Aspergillus and Penicillium spp. have been reported as contaminants on various cereal grains around the world, although relatively few species dominate in any given location.

A radiation hybrid map of chromosome 1D reveals synteny conservation at a wheat speciation locus.

The species cytoplasm specific (scs) genes affect nuclear-cytoplasmic interactions in interspecific hybrids. A radiation hybrid (RH) mapping population of 188 individuals was employed to refine the location of the scs (ae) locus on Triticum aestivum chromosome 1D. "Wheat Zapper," a comparative genomics tool, was used to predict synteny between wheat chromosome 1D, Oryza sativa, Brachypodium distachyon, and Sorghum bicolor.

Physical mapping resources for large plant genomes: radiation hybrids for wheat D-genome progenitor Aegilops tauschii.

Background: Development of a high quality reference sequence is a daunting task in crops like wheat with large (~17Gb), highly repetitive (>80%) and polyploid genome. To achieve complete sequence assembly of such genomes, development of a high quality physical map is a necessary first step. However, due to the lack of recombination in certain regions of the chromosomes, genetic mapping, which uses recombination frequency to map marker loci, alone is not sufficient to develop high quality marker scaffolds for a sequence ready physical map.

Genetic mapping of stem rust resistance gene Sr13 in tetraploid wheat (Triticum turgidum ssp. durum L.).

Wheat stem rust caused by Puccinia graminis f. sp. tritici, can cause significant yield losses.

A unique wheat disease resistance-like gene governs effector-triggered susceptibility to necrotrophic pathogens.

Plant disease resistance is often conferred by genes with nucleotide binding site (NBS) and leucine-rich repeat (LRR) or serine/threonine protein kinase (S/TPK) domains. Much less is known about mechanisms of susceptibility, particularly to necrotrophic fungal pathogens. The pathogens that cause the diseases tan spot and Stagonospora nodorum blotch on wheat produce effectors (host-selective toxins) that induce susceptibility in wheat lines harboring corresponding toxin sensitivity genes.

Molecular characterization of the major wheat domestication gene Q.

The Q gene is largely responsible for the widespread cultivation of wheat because it confers the free-threshing character. It also pleiotropically influences many other domestication-related traits such as glume shape and tenacity, rachis fragility, spike length, plant height, and spike emergence time. We isolated the Q gene and verified its identity by analysis of knockout mutants and transformation.

Detailed mapping of the species cytoplasm-specific (scs) gene in durum wheat.

The compatibility-inducing action of the scs(ti) (species cytoplasm-specific gene derived from Triticum timopheevii) and Vi (vitality) genes can be observed when a durum (T. turgidum) nucleus is placed in T. longissimum cytoplasm.