Katherine Frels

ORCID: 0000-0003-3032-5570
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About
Contact & Profiles
Research Areas
  • Wheat and Barley Genetics and Pathology
  • Genetics and Plant Breeding
  • Crop Yield and Soil Fertility
  • Turfgrass Adaptation and Management
  • Genetic Mapping and Diversity in Plants and Animals
  • Bioenergy crop production and management
  • Nitrogen and Sulfur Effects on Brassica
  • Genetic diversity and population structure
  • Plant Disease Resistance and Genetics
  • Remote Sensing in Agriculture
  • Berry genetics and cultivation research
  • Genetic and phenotypic traits in livestock
  • Plant Micronutrient Interactions and Effects
  • Chromosomal and Genetic Variations
  • Genomics and Phylogenetic Studies
  • Plant pathogens and resistance mechanisms
  • Plant Genetic and Mutation Studies
  • Plant Pathogens and Fungal Diseases
  • Agricultural Science and Fertilization
  • Plant and Fungal Interactions Research
  • Pasture and Agricultural Systems
  • Weed Control and Herbicide Applications
  • Sunflower and Safflower Cultivation
  • Heavy metals in environment
  • Mycotoxins in Agriculture and Food

University of Nebraska–Lincoln
2015-2025

Western Nebraska Community College
2023

University of Minnesota
2017-2022

Corteva (United States)
2022

ABSTRACT Wheat ( Triticum aestivum L.) grain mineral concentrations tend to decrease as yields increase, therefore, breeding for yield improvement may reduce wheat nutritional quality. The objectives of this study were survey concentration in Great Plains hard winter assess (i) the heritable variation germplasm pool, (ii) effects more than 50 yr on concentrations, and (iii) opportunities exploit underlying physiological relationship between protein (GPC) improve Grain measured a panel 299...

10.2135/cropsci2014.07.0506 article EN Crop Science 2015-04-27

Intermediate wheatgrass [IWG; (Host) Barkworth & D.R. Dewey subsp. ] is being developed as a new perennial grain crop that has large allohexaploid genome similar to of wheat ( L.). Breeding for increased seed weight one the primary goals improving yield IWG. As crop, however, genetic architecture and size not been characterized, selective breeding IWG may be more intricate than because its self-incompatible mating system growth habit. Here, weight, area size, width, length were evaluated...

10.3835/plantgenome2017.03.0022 article EN cc-by-nc-nd The Plant Genome 2017-10-05

Abstract Wheat genotypes that efficiently capture and convert available soil nitrogen into harvested grain protein are key to sustainably meeting the rising global demand for protein. The purposes of this study were: characterize genetic variation use efficiency (NUE) traits within hard winter wheat adapted Great Plains United States evaluate trends in germplasm with year release; explore relationships among may be used selection breeding programs; identify quantitative trait loci associated...

10.1007/s10681-017-1869-5 article EN cc-by Euphytica 2017-03-15

Phenotypic plasticity describes the range of phenotypes produced by a single genotype in different environments. We quantified extent phenotypic (evaluated as responsiveness to varying environmental conditions) thermal time heading and grain yield 299 hard winter wheat ( Triticum aestivum L.) genotypes from US Great Plains. The genotypes, which included advanced breeding lines recent historic cultivars, were evaluated 11 environments 2011–2012 2012–2013. average number days 1 January across...

10.2135/cropsci2015.06.0357 article EN Crop Science 2016-05-27

Summary Thlaspi arvense (field pennycress) is being domesticated as a winter annual oilseed crop capable of improving ecosystems and intensifying agricultural productivity without increasing land use. It selfing diploid with short life cycle amenable to genetic manipulations, making it an accessible field‐based model species for genetics epigenetics. The availability high‐quality reference genome vital understanding pennycress physiology clarifying its evolutionary history within the...

10.1111/pbi.13775 article EN cc-by Plant Biotechnology Journal 2022-01-06

ABSTRACT Wheat ( Triticum aestivum L.) is a primary staple cereal and significant source of mineral nutrients in human diets. Therefore, increasing concentration the essential mineral, Zn, decreasing toxic Cd, could significantly improve health. Because plant mechanisms for uptake translocation Cd Zn are related, we assessed both to evaluate their independence hard winter wheat germplasm. Grain concentrations some genotypes grown Nebraska trials were above Codex guidance level (0.2 mg kg –1...

10.2135/cropsci2014.08.0559 article EN Crop Science 2015-06-09

Thlaspi arvense (pennycress) has the potential for domestication as a new oilseed crop. Information from an extensive body of research on related plant species Arabidopsis can be used to greatly speed this process. Genome-scale comparisons in paper documented that pennycress and share similar gene duplication. This finding led hypothesis it should possible isolate Arabidopsis-like mutants pennycress. proved true, forward genetic screens identified floral vegetative were found Arabidopsis....

10.1111/tpj.14147 article EN cc-by-nc The Plant Journal 2018-11-05

Wheat (Triticum spp and, particularly, T. aestivum L.) is an essential cereal with increased human and animal nutritional demand. Therefore, there a need to enhance wheat yield genetic gain using modern breeding technologies alongside proven methods achieve the necessary increases in productivity. These will allow breeders develop improved cultivars more quickly efficiently. This review aims highlight emerging technological trends used worldwide breeding, focus on enhancing yield. The key...

10.31083/j.fbe1601002 article EN cc-by Frontiers in Bioscience-Elite 2024-01-31

Abstract Estimating potential crop yield during the growing season allows growers to adjust inputs, set reasonable harvest expectations, and guide marketing decisions. Therefore, ability estimate is a valuable yet difficult goal for growers. To evaluate of several methods wheat ( Triticum aestivum L.) grain prediction, this experiment used published based on phenological characteristics: stand tiller/spike counts, newer that employ image‐ reflectance‐based approaches, such as fractional...

10.1002/agj2.70021 article EN cc-by Agronomy Journal 2025-01-01

A network of 21 experiments was established across nine countries on four continents and spanning both hemispheres, to evaluate the relative performance early generation perennial cereal material derived from wheat, rye, barley inform future breeding strategies. The experimental lines were grown in replicated single rows, first year production phenology characteristics as well yield persistence for up three years monitored. study showed that existing is all relatively short-lived (≤3 years),...

10.3390/su10041124 article EN Sustainability 2018-04-09

Evaluation of genetic diversity within wild populations is an essential process for improvement and domestication new crop species. This involves evaluation population structure individual accessions based on markers, growth habits, geographic collection area. In this study, field pennycress were analyzed to identify variation in germplasm available breeding. A total 9157 genome-wide single nucleotide polymorphisms (SNPs) identified among the 121 analyzed, linkage disequilibrium pruning...

10.3390/agronomy9060302 article EN cc-by Agronomy 2019-06-11

Abstract The USDA‐ARS and North Dakota State University Agricultural Experiment Station jointly released the Fusarium head blight (FHB)‐resistant spring wheat ( Triticum aestivum L.) germplasm WGC002 (Reg. no. GP‐1089, PI 702949) in May 2023. is a wheat‐ Thinopyrum elongatum 7B‐7E translocation line, designated 7BS·7BL‐7EL, with chromosome 7BL terminal region replaced by homoeologous counterpart of Th. 7EL that contains novel FHB resistance gene Fhb7 The2 . was developed from Chinese Spring...

10.1002/plr2.20342 article EN Journal of Plant Registrations 2024-01-05

Midwest crop production is dominated by two summer annual crops grown in rotation, viz., corn (

10.2478/jofnem-2022-0006 article EN cc-by Journal of Nematology 2022-02-01

Abstract End‐use and processing traits in wheat ( Triticum aestivum L.) are crucial for varietal development but often evaluated only the advanced stages of breeding program due to amount grain needed labor‐intensive phenotyping assays. Advances genomic resources have provided new tools address selection these complex earlier process. We used association mapping identify key variants underlying various end‐use quality evaluate usefulness prediction hard red spring from Northern United...

10.1002/tpg2.20529 article EN cc-by-nc-nd The Plant Genome 2024-11-13

Abstract The oilseed species Thlaspi arvense (pennycress) is being domesticated as a new crop that can provide both important ecosystem services and intensify farmland output. Through the use of high throughput sequencing phenotyping, along with classical mutagenesis key traits needed for pennycress domestication have been identified. Domestication identified herein include reduced pod shatter, early maturity, seed glucosinolate levels, improved oil fatty acid content. By taking advantage...

10.1101/609990 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2019-04-16

Abstract Field pennycress ( Thlaspi arvense L.) is a new winter annual cash cover crop with high oil content and seed yield, excellent hardiness, early maturation, resistance to most pests diseases. It provides living on fallow croplands between summer seasons, in doing so reduces nutrient leaching into water sources, mitigates soil erosion, suppresses weed growth. The first ever genome‐wide association study (GWAS) was conducted diversity panel identify marker trait associations important...

10.1002/tpg2.20211 article EN cc-by-nc-nd The Plant Genome 2022-04-29

Barley (Hordeum vulgare L.) thrives in the arid and semi-arid regions of world; nevertheless, it suffers large grain yield losses due to drought stress. A panel 426 lines barley was evaluated Egypt under deficit (DI) full irrigation (FI) during 2019 2020 growing seasons. Observations were recorded on number days flowering (NDF), total chlorophyll content (CH), canopy temperature (CAN), filling duration (GFD), plant height (PH), (Yield) DI FI. The genotyped using 9K Infinium iSelect single...

10.3390/plants11223072 article EN cc-by Plants 2022-11-13
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