Index Catalog // ScholarsArchive@OSU

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Creator:: Jantasuriyarat, Chatchawan
Abstract:: Spike morphology characteristics and the free-threshing habit of wheat have been extensively investigated because of their evolutionary significance and practical importance. Several genetic systems that govern these traits have been reported. Some studies suggest polygenic inheritance while others have identified major genes. This study was conducted to identify and locate...
Resource Type:: Masters Thesis
Full Text:: approved: Oscar Riera-Lizarazu Spike morphology characteristics and the free-threshing habit of wheat

Triticum enhancer of zeste 1 (Tezl), a homolog of enhancer of zeste in Triticum monococcum

Creator:: Nunes, Jason L.
Abstract:: The Polycomb group (PcG) of genes of Drosophila melanogaster Meigen are involved in developmental regulation through chromatin remodeling. Homologs of PcG genes have been identified in both plant and animal species. In this study, we detail the identification and characterization of Triticum enhancer of zeste 1 (Tez1), a homolog of...
Resource Type:: Masters Thesis
Full Text:: Homolog of Enhancer of Zeste in Triticum monococcum Abstract approved: Oscar Riera-Lizarazu The

Nuclear and chloroplast diversity of Pacific Northwest wheat (Triticum aestivum) breeding germplasm

Creator:: Edwards, Melanie Love
Abstract:: Wheat breeders must effectively maintain and manage existing genetic diversity in order to continue the development of superior genotypes. It is therefore fundamental that the genetic relationships and diversity within the germplasm pools be thoroughly characterized and understood. Recently, DNA-based markers have provided powerful tools for genetic diversity analysis. This...
Resource Type:: Masters Thesis
Full Text:: to my major professors, Dr. Oscar Riera- Lizarazu and Dr. Jim Peterson for their guidance and

Sensitivity of wheat genotypes to a toxic fraction produced by Cephalosporium gramineum and correlation with disease susceptibility

Creator:: Rahman, Mahfuzur
Abstract:: Cephalosporium stripe, caused by the soil-borne ascomycete Cephalosporium gramineum, is becoming an increasingly important disease of winter wheat (Triticum aestivum) in several areas of the world, especially where stubble mulch is practiced to maintain soil moisture and prevent erosion. As cultural control of the disease is infeasible and no fungicides...
Resource Type:: Masters Thesis
Full Text:: AUThOR Dr. Oscar Riera-Lizarazu was involved in the analysis of ITMI mapping progeny evaluation data

Pyramiding quantitative trait loci conditioning partial resistance to Sclerotinia sclerotiorum in bush blue lake green beans (Phaseolus vulgaris)

Creator:: Barrett, Miles Andrew
Abstract:: Sclerotinia sclerotiorum (Lib.) de Bary is a necrotrophic pathogen capable of causing white mold, a severe disease in common bean. White mold is of particular concern to the Oregon snap bean processing industry, where processors allow less than 3% incidence in harvested shipments. Breeding for white mold resistance in beans...
Resource Type:: Masters Thesis
Full Text:: Riera- Lizarazu for serving on the graduate committee. They have opened their classrooms and their

Jointed goatgrass : outcrossing, competition with winter wheat, and response to timing and rate of imazamox

Creator:: Cannon, Joshua B.
Abstract:: Jointed goatgrass (Aegilops cylindrica Host.) is a serious weed problem in wheat (Triticum aestivum L.) production in the United States. Studies were conducted to determine the outcrossing rate, competitive ability, and effectiveness of certain control practices on jointed goatgrass. A field study was conducted over two years at four locations...
Resource Type:: Masters Thesis
Full Text:: Peachey and Oscar Riera-Lizarazu for serving on my graduate committee. The quality of my experience here

Seed protein and chromosome number analyses of experimental wheat x jointed goatgrass (Aegilops cylindrica Host) hybrid derivatives

Creator:: Crémieux, Lis︡ele
Abstract:: The occurrence of seed-producing wheat x jointed goatgrass hybrids in infested wheat fields suggests the possibility of gene flow between the two species. This study investigates 'Madsen' wheat x jointed goatgrass F₁ and reciprocal backcross derivatives produced in experimental field plantings. Electrophoresis of the high molecular weight (HMW) glutenin seed...
Resource Type:: Masters Thesis
Full Text:: University. Special thanks are extended to: Drs. Oscar Riera-Lizarazu, Shawn Mehienbacher, and Richard

Localization and genetic mapping of some factors influencing rachis brittleness and free-threshing habit in wheat

Creator:: Nalam, Vamsi J.
Abstract:: Domesticated forms of wheat exhibit traits that have increased their adaptation to cultivation by humans. Some of the most critical adaptive differences involve changes to morphological features that make the crop easier to harvest like ear rachis stiffness (brittle to non-brittle rachis) and the ease with which the seed is...
Resource Type:: Masters Thesis
Full Text:: approved: Oscar Riera-Lizarazu Domesticated forms of wheat exhibit traits that have increased their

Genetic factors that provide adult plant resistance against Puccinia striiformis f. sp. tritici to wheat cultivar 'Stephens' in a multilocation analysis.

Creator:: Vazquez, Maria Dolores
Abstract:: Stripe rust (Puccinia striiformis f. sp. tritici) has been receiving increased attention in the USA since the appearance of more virulent races detected in the past decade. These races caused yield losses even in areas where the disease previously was rarely detected. Host plant resistance is the most cost effective...
Resource Type:: Masters Thesis
Full Text:: having Dr. Jim Peterson as my major advisor. I am grateful to Dr. Oscar Riera-Lizarazu for developing

Genetics of tocopherol composition in sunflower seed

Creator:: Hass, Catherine G.
Abstract:: Tocopherols are plant secondary metabolites that are known collectively as vitamin E. Tocopherol compounds act as potent antioxidants by quenching free radicals and protecting fatty acids from oxidative damage. In humans (in vivo) tocopherols protect membrane lipids from breaking down, while in oils (in vitro) tocopherols protect fatty acids from...
Resource Type:: Masters Thesis
Full Text:: , Dr. Jim Myers, Dr. Oscar Riera-Lizarazu, Dr. Carol Rivin, and Dr. Bill Braunworth. I am extremely

ScholarsArchive@OSU

Quantitative trait loci influencing free-threshing habit and spike morphology in wheat (Triticum aestivum L.)

Triticum enhancer of zeste 1 (Tezl), a homolog of enhancer of zeste in Triticum monococcum

Nuclear and chloroplast diversity of Pacific Northwest wheat (Triticum aestivum) breeding germplasm

Sensitivity of wheat genotypes to a toxic fraction produced by Cephalosporium gramineum and correlation with disease susceptibility

Pyramiding quantitative trait loci conditioning partial resistance to Sclerotinia sclerotiorum in bush blue lake green beans (Phaseolus vulgaris)

Jointed goatgrass : outcrossing, competition with winter wheat, and response to timing and rate of imazamox

Seed protein and chromosome number analyses of experimental wheat x jointed goatgrass (Aegilops cylindrica Host) hybrid derivatives

Localization and genetic mapping of some factors influencing rachis brittleness and free-threshing habit in wheat

Genetic factors that provide adult plant resistance against Puccinia striiformis f. sp. tritici to wheat cultivar 'Stephens' in a multilocation analysis.

Genetics of tocopherol composition in sunflower seed

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