A5069582617- Wheat and Barley Genetics and Pathology
- Genetics and Plant Breeding
- Genetic Mapping and Diversity in Plants and Animals
- Crop Yield and Soil Fertility
- Plant Disease Resistance and Genetics
- Chromosomal and Genetic Variations
- Food composition and properties
- Plant Virus Research Studies
- Horticultural and Viticultural Research
- Turfgrass Adaptation and Management
- Agriculture, Plant Science, Crop Management
- Insect Resistance and Genetics
- Insect-Plant Interactions and Control
- Bioenergy crop production and management
- Plant tissue culture and regeneration
- Plant Pathogens and Resistance
- Agricultural Productivity and Crop Improvement
- Phytase and its Applications
- Mycotoxins in Agriculture and Food
- Legume Nitrogen Fixing Symbiosis
- Plant and Fungal Interactions Research
- Plant Taxonomy and Phylogenetics
- Genetic diversity and population structure
- Plant Micronutrient Interactions and Effects
- Insect Pest Control Strategies
Montana State University
2011-2020
University of Minnesota
2016-2017
Cereal Disease Laboratory
2016
United States Department of Agriculture
2016
Agricultural Research Service
2016
Plant (United States)
2011
University of Florida
2002
University of Oregon
1988
Domesticated crops experience strong human-mediated selection aimed at developing high-yielding varieties adapted to local conditions. To detect regions of the wheat genome subject during improvement, we developed a high-throughput array interrogate 9,000 gene-associated single-nucleotide polymorphisms (SNP) in worldwide sample 2,994 accessions hexaploid including landraces and modern cultivars. Using SNP-based diversity map characterized impact crop improvement on genomic geographic...
Bread wheat is an allopolyploid species with a large, highly repetitive genome. To investigate the impact of selection on variants distributed among homoeologous genomes and to build foundation for understanding genotype-phenotype relationships, we performed population-scale re-sequencing diverse panel lines.A sample 62 lines was re-sequenced using whole exome capture genotyping-by-sequencing approaches. We describe allele frequency, functional significance, chromosomal distribution 1.57...
Yield in cereals is a function of seed number and weight; both parameters are largely controlled by sink strength. The allosteric enzyme ADP-glucose pyrophosphorylase (AGP) plays key role regulating starch biosynthesis cereal seeds likely the most important determinant Plant AGPs heterotetrameric, consisting two large small subunits. We transformed wheat ( Triticum aestivum L.) with modified form maize Zea mays Shrunken2 gene Sh2r6hs ), which encodes an altered AGP subunit. subunit gives...
Abstract Background Single nucleotide polymorphisms (SNPs) are ideally suited for the construction of high-resolution genetic maps, studying population evolutionary history and performing genome-wide association mapping experiments. Here, we used a set 1536 SNPs to study linkage disequilibrium (LD) structure in panel 478 spring winter wheat cultivars ( Triticum aestivum ) from 17 populations across United States Mexico. Results Most oligo pool assay (OPA) that were polymorphic within...
Single-nucleotide polymorphism was used in the construction of an expressed sequence tag map Aegilops tauschii, diploid source wheat D genome. Comparisons with rice and sorghum genome sequences revealed 50 inversions translocations; 2, 8, 40 were assigned respectively to rice, sorghum, Ae. tauschii lineages, showing greatly accelerated evolution large Triticeae genomes. The reduction basic chromosome number from 12 7 has taken place by a process during which entire is inserted its telomeres...
A genome-wide assessment of nucleotide diversity in a polyploid species must minimize the inclusion homoeologous sequences into estimates and reliably allocate individual haplotypes their respective genomes. The same requirements complicate development deployment single polymorphism (SNP) markers species. We report here strategy that satisfies these deploy it sequencing genes cultivated hexaploid wheat (Triticum aestivum, genomes AABBDD) wild tetraploid turgidum ssp. dicoccoides, AABB) from...
ABSTRACT Modern spring wheat ( Triticum aestivum L.) cultivars are typically of semidwarf growth habit and have higher yield potential than their predecessors. Since the introduction reduced height alleles, breeders selected for grain improvements in other traits. The objective this project was to determine genetic basis differences between a modern cultivar ‘McNeal’ with Rht‐D1b historically important standard ‘Thatcher’. A recombinant inbred line (RIL) population 160 lines, including 80...
Summary Recombination affects the fate of alleles in populations by imposing constraints on reshuffling genetic information. Understanding basis these is critical for manipulating recombination process to improve resolution mapping, and reducing negative effects linkage drag deleterious load breeding. Using sequence‐based genotyping a wheat nested association mapping ( NAM ) population 2,100 recombinant inbred lines created crossing 29 diverse lines, we mapped QTL affecting distribution...
Recent results have shown that mutations in genes coding for puroindoline a and b ( PinA PinB ) are associated with the expression of hard texture wheat Triticum aestivum L.) grain. A majority wheats glycine‐to‐serine mutation (allele PinB‐D1b ), or they devoid PinA‐D1b ). Hard tend to be harder than those Grain hardness is known affect milling baking traits. Our objective was determine influence allelic variation on bread quality traits recombinant inbred population segregating One hundred...
Wheat ( Triticum aestivum L.) endosperm texture is a primary determinant of milling and end‐product quality. Friabilin, marker protein for grain hardness, composed two proteins, puroindoline b (pinA pinB, respectively). Hard‐textured wheats have variant alleles consisting glycine‐to‐serine change in pinB pinB‐D1b ) or the complete absence pinA pinA‐D1b ). Our objectives were to examine influence alterations on hardness from populations among elite hard red spring wheat cultivars differing...
The probability of recovering a superior individual from the cross two inbred parents is greater if both are similar in performance as opposed to one parent being inferior. Heterosis, coefficients parentage, and molecular markers have been advocated assess genetic diversity directly between parents. This study was done determine extent DNA polymorphisms among set seven hard red spring wheats relationship based on these examine hybrid diallel Parents plus F 1 hybrids were grown three...
Bread baking is the primary end‐use criterion used to select hard spring wheat ( Triticum aestivum L.) genotypes for northwestern USA, yet use of wheats has expanded beyond traditional pan breads include Asian noodles. We assessed relative influence genotype, N management, and location on quality characteristics a set cultivars that provided range in gluten strength acceptability bread noodle quality, determined whether grain could predict and/or market suitability. Seven were grown at four...
Allohexaploid bread wheat is grown on more acreage than any other cereal crop, yet variation at the DNA level seems to be less that observed in many diploid crop species. A common explanation for small amount of DNA-level a severe bottleneck event resulted from polyploidization events gave rise hexaploid wheat, whereby was genetically separated its progenitors. In this report, we test extent separating D-genome progenitor, Triticum tauschii, by comparative sequence analysis. Restriction site...
Selection of parents is an important first step in any breeding program. The ability to assess accurately genetic differences between and subsequently predict progeny performance would enhance the efficiency programs. This study examined association similarity (GS) based on coefficient parentage (COP) molecular marker data for 10 hard red spring wheats ( Triticum aestivum L.). In addition, we assessed value parental diversity COP, data, combinations them, variance 12 crosses wheat....
Genetic variation among wheat ( Triticum aestivum L.) parents is necessary to derive superior progeny from crossing and selection. However, crosses are often performed elite lines with similar agronomic end‐use characteristics. Thus, the potential exists for an undesirable narrowing of germplasm base any particular class wheat. The relative genetic diversity within hard red spring was determined in comparison a sample accessions representing array types geographic origins. Three groups were...
Journal Article Cultivar Preferences of Ovipositing Wheat Stem Sawflies as Influenced by the Amount Volatile Attractant Get access David K. Weaver, Weaver Search for other works this author on: Oxford Academic PubMed Google Scholar Micaela Buteler, Buteler Megan L. Hofland, Hofland Justin B. Runyon, Runyon Christian Nansen, Nansen Luther E. Talbert, Talbert Peggy Lamb, Lamb Gregg R. Carlson Economic Entomology, Volume 102, Issue 3, 1 June 2009, Pages 1009–1017,...
ABSTRACT Genetic approaches to lengthening green leaf duration are becoming more important in spring wheat ( Triticum aestivum L. em. Thell.) as increasing temperatures hasten senescence. Green after heading (GLDAH) has been reported provide drought and heat tolerance several crops. This study was conducted Montana under a range of temperature moisture conditions evaluate the relationship GLDAH agronomic traits identify quantitative trait loci (QTL) for using recombinant inbred line (RIL)...
Wheat stem sawfly (WSS), Cephus cinctus N., is a major insect pest of winter and spring wheat, Triticum aestivum L., in areas the northern Great Plains. The primary control measure use resistant cultivars containing solid stems. Environmental effects on expression trait can be problematic, thus genetic markers would useful. In this study, doubled haploid (DH) wheat population derived from ‘Rampart’ (solid stems) × ‘Jerry’ (hollow cross was analyzed to identify molecular linked genes...
Vernalization is a cold treatment that induces or accelerates flowering and insures temperate-zone plants will not flower until after winter. There evidence vernalization results in DNA demethylation flowering. Differences methylation can be determined using methylation-sensitive amplified fragment length polymorphisms (AFLPs). Methylation-sensitive AFLPs utilize restriction enzyme isoschizomers are differentially sensitive to methylation, producing related differences as opposed sequence...
ABSTRACT Selection in unreplicated head rows for traits that affect yield potential is an objective many wheat ( Triticum aestivum L. ) breeding programs. Flag leaf characteristics provide a target selection. In this experiment, we determined flag and recombinant inbred lines (RIL) from two crosses, McNeal/Thatcher McNeal/Reeder. McNeal intermediate between Thatcher Reeder green duration after heading. had heritability greater than 0.70 all traits. Heading date was positively associated with...