Open Access. Powered by Scholars. Published by Universities.®

Plant Breeding and Genetics Commons

Open Access. Powered by Scholars. Published by Universities.®

2,200 Full-Text Articles 4,911 Authors 334,740 Downloads 75 Institutions

All Articles in Plant Breeding and Genetics

Faceted Search

2,200 full-text articles. Page 40 of 45.

Barley Variety Guide For Wa 2012, Blakely Paynter, Andrea Hills, Dhammu Harmohinder 2011 Department of Agriculture and Food, Western Australia

Barley Variety Guide For Wa 2012, Blakely Paynter, Andrea Hills, Dhammu Harmohinder

Bulletins 4000 -

This variety guide is designed as a quick reference to help growers determine which barley variety to grow in their region. It provides domestic and international market feedback, relative grain yield comparisons, disease ratings, agronomic information and herbicide tolerance ratings for all malting barley varieties, the new food variety and selected feed varieties.


Growing Oats In Western Australia For Hay And Grain, Raj Malik, Blakely Paynter, Cindy Webster, Amelia McLarty 2011 Department of Agriculture and Food, Western Australia

Growing Oats In Western Australia For Hay And Grain, Raj Malik, Blakely Paynter, Cindy Webster, Amelia Mclarty

Bulletins 4000 -

The oat industry in Western Australia has made phenomenal progress in recent years with the discovery of new markets, the release of several high yielding varieties and the development of agronomic guidelines through rigorous research programs. Oat production in Western Australia for the domestic and export market has significantly increased over the past few years. Oats are now regarded as one of the most profitable cropping enterprises. Oat production is mainly export orientated and thus has a substantial economic influence on the agricultural industry.

In Western Australia, oats are grown for grain, for both milling and feed, and for hay ...


Bpmv-Based Viral Constructs Useful For Vigs And Expression Of Heterologous Proteins In Legumes Patent Application, John H. Hill, Chunquan Zhang, Steven A. Whitham 2011 Iowa State University

Bpmv-Based Viral Constructs Useful For Vigs And Expression Of Heterologous Proteins In Legumes Patent Application, John H. Hill, Chunquan Zhang, Steven A. Whitham

Iowa State University Patents

The invention provides Bean pod mottle virus (BPMV) vectors useful for expression of heterologous proteins in plants such as soybean. The BPMV vectors are also useful for virus-induced gene silencing. The vectors of the invention include modifications of BPMV RNA1 sequences so that infection with the vectors produces only moderate symptoms. The vectors also comprise novel RNA2 vectors which specifically provide for non-translated VIGS constructs and further which do not require in frame insertion of heterologous sequences to be expressed.


Herbicide-Resistant Risk Assessment: Response Of Common Nebraska Weeds To Dicamba Dose, Roberto J. Crespo 2011 University of Nebraska-Lincoln

Herbicide-Resistant Risk Assessment: Response Of Common Nebraska Weeds To Dicamba Dose, Roberto J. Crespo

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Dicamba-resistant soybeans are being developed to provide an additional herbicide mechanism of action that can be used in soybean, and to provide a tool to help manage or mitigate the evolution of other herbicide-resistant weed populations. The objectives of this thesis were to assess the risk of common Nebraska weeds developing resistance to dicamba, quantify baseline dose-response to dicamba of high-risk weed species, and survey the variability in dicamba dose-response among populations of those species. Twenty-five weed scientists were asked to estimate the risk likelihood of ten weed species evolving resistance to dicamba following the commercialization of dicamba-resistant soybean. Palmer ...


Accuracy And Training Population Design For Genomic Selection On Quantitative Traits In Elite North American Oats, Franco G. Asoro, Mark A. Newell, William D. Beavis, Marvin Paul Scott, Jean-Luc Jannink 2011 Iowa State University

Accuracy And Training Population Design For Genomic Selection On Quantitative Traits In Elite North American Oats, Franco G. Asoro, Mark A. Newell, William D. Beavis, Marvin Paul Scott, Jean-Luc Jannink

Agronomy Publications

Genomic selection (GS) is a method to estimate the breeding values of individuals by using markers throughout the genome. We evaluated the accuracies of GS using data from five traits on 446 oat (Avena sativa L.) lines genotyped with 1005 Diversity Array Technology (DArT) markers and two GS methods (ridge regression–best linear unbiased prediction [RR-BLUP] and BayesCπ) under various training designs. Our objectives were to (i) determine accuracy under increasing marker density and training population size, (ii) assess accuracies when data is divided over time, and (iii) examine accuracy in the presence of population structure. Accuracy increased as the ...


The Application And Performance Of Single Nucleotide Polymorphism Markers For Population Genetic Analyses Of Lepidoptera, Brad S. Coates, Darrell O. Bayles, Kevin W. Wanner, Hugh M. Robertson, Richard L. Hellmich, Thomas W. Sappington 2011 United States Department of Agriculture

The Application And Performance Of Single Nucleotide Polymorphism Markers For Population Genetic Analyses Of Lepidoptera, Brad S. Coates, Darrell O. Bayles, Kevin W. Wanner, Hugh M. Robertson, Richard L. Hellmich, Thomas W. Sappington

Entomology Publications

Microsatellite markers are difficult to apply within lepidopteran studies due to the lack of locus-specific PCR amplification and the high proportion of “null” alleles, such that erroneous estimations of population genetic parameters often result. Herein single nucleotide polymorphism (SNP) markers are developed from Ostrinia nubilalis (Lepidoptera: Crambidae) using next generation expressed sequence tag (EST) data. A total of 2742 SNPs were predicted within a reference assembly of 7414 EST contigs, and a subset of 763 were incorporated into 24 multiplex PCR reactions. To validate this pipeline, 5 European and North American sample sites were genotyped at 178 SNP loci, which ...


Quantitative And Temporal Definition Of The Mla Transcriptional Regulon During Barley–Powdery Mildew Interactions, Matthew J. Moscou, Nick Lauter, Rico A. Caldo, Dan Nettleton, Roger P. Wise 2011 Iowa State University

Quantitative And Temporal Definition Of The Mla Transcriptional Regulon During Barley–Powdery Mildew Interactions, Matthew J. Moscou, Nick Lauter, Rico A. Caldo, Dan Nettleton, Roger P. Wise

Statistics Publications

Barley Mildew resistance locus a (Mla) is a major determinant of immunity to the powdery mildew pathogen, Blumeria graminis f. sp. hordei. Alleles of Mla encode cytoplasmic- and membrane-localized coiled-coil, nucleotide binding site, leucine-rich repeat proteins that mediate resistance when complementary avirulence effectors (AVRa) are present in the pathogen. Presence of an appropriate AVRa protein triggers nuclear relocalization of MLA, in which MLA binds repressing host transcription factors. Timecourse expression profiles of plants harboring Mla1, Mla6, and Mla12 wild-type alleles versus paired loss-of-function mutants were compared to discover conserved transcriptional targets of MLA and downstream signaling cascades. Pathogen-dependent gene expression ...


Roles Of Three Transporters, Cbcxwv, Bett1, And Bett3, In Pseudomonas Aeruginosa Choline Uptake For Catabolism, Adel A. Malek, Chiliang Chen, Matthew J. Wargo, Gwyn A. Beattie, Deborah A. Hogan 2011 Dartmouth Medical School

Roles Of Three Transporters, Cbcxwv, Bett1, And Bett3, In Pseudomonas Aeruginosa Choline Uptake For Catabolism, Adel A. Malek, Chiliang Chen, Matthew J. Wargo, Gwyn A. Beattie, Deborah A. Hogan

Plant Pathology and Microbiology Publications

Pseudomonas aeruginosa uses the quaternary amine choline as a carbon source, osmoprotectant, and macromolecular precursor. The importance of choline in P. aeruginosa physiology is highlighted by the presence of multiple known and putative choline transporters encoded within its genome. This report describes the relative roles of three choline transporters, the ABC transporter CbcXWV and two symporters, BetT1 and BetT3, in P. aeruginosa growth on choline under osmotic conditions that are physiologically relevant to eukaryotic hosts. The increased lag phases exhibited by the ΔbetT1 and ΔbetT1 ΔbetT3 mutants relative to the wild type upon transfer to medium with ...


Deficiency Of Maize Starch-Branching Enzyme I Results In Altered Starch Fine Structure, Decreased Digestibility And Reduced Coleoptile Growth During Germination, Huan Xia, Marna Yandeau-Nelson, Donald B. Thompson, Mark J. Guiltinan 2011 MARS Petcare US

Deficiency Of Maize Starch-Branching Enzyme I Results In Altered Starch Fine Structure, Decreased Digestibility And Reduced Coleoptile Growth During Germination, Huan Xia, Marna Yandeau-Nelson, Donald B. Thompson, Mark J. Guiltinan

Biochemistry, Biophysics and Molecular Biology Publications

Background: Two distinct starch branching enzyme (SBE) isoforms predate the divergence of monocots and dicots and have been conserved in plants since then. This strongly suggests that both SBEI and SBEII provide unique selective advantages to plants. However, no phenotype for the SBEI mutation, sbe1a, had been previously observed. To explore this incongruity the objective of the present work was to characterize functional and molecular phenotypes of both sbe1a and wild-type (Wt) in the W64A maize inbred line.

Results: Endosperm starch granules from the sbe1a mutant were more resistant to digestion by pancreatic aamylase, and the sbe1a mutant starch had ...


Molecular Mechanism Of Methionine Differentiation In High And Low Methionine Maize Lines, Muhammad Ali, Marvin P. Scott, Jehan Bakht 2011 KPK Agricultural University

Molecular Mechanism Of Methionine Differentiation In High And Low Methionine Maize Lines, Muhammad Ali, Marvin P. Scott, Jehan Bakht

Agronomy Publications

Since maize is a primary food stuff for humans and livestock, its amino acid balance is important for proper nutrition. Methionine, an essential amino acid and a primary source of sulfur, is lacking in maize endosperm. Several maize populations were developed through breeding with enhanced methionine content in comparison with normal maize populations. BS31HM (high methionine) and BS31LM (low methionine) maize were among such populations created by the selection from the highest or lowest methionine content population from original BS31 maize. Candidate gene approach was adopted to determine the difference between the two populations at transcript level of the selected ...


Variation In The Breeding System Of Prunella Vulgaris L., Luping Qu, Mark P. Widrlechner 2011 United States Department of Agriculture

Variation In The Breeding System Of Prunella Vulgaris L., Luping Qu, Mark P. Widrlechner

NCRPIS Publications and Papers

Prunella vulgaris (Lamiaceae), commonly known as selfheal, is a perennial herb with a long history of use in traditional medicine. Recent studies have found that P. vulgaris possesses anti-inflammatory, antiviral, and antibacterial properties, and it is likely that this will lead to increased commercial demand for this species. To date, research publications on P. vulgaris cultivation and genetics are scarce. Using accessions originally collected from different geographical regions, we investigated the breeding system of this species by observing variation in floral morphology, time of pollen release, and selfed-seed set in bagged flowers and isolated plants. Two types of floral morphology ...


Impact Of Student Motivation In Online Learning Activities, Amy Lathrop 2011 University of Nebraska-Lincoln

Impact Of Student Motivation In Online Learning Activities, Amy Lathrop

Theses, Dissertations, and Student Research in Agronomy and Horticulture

With the prevalence of online learning in education for both distance and campus-based students, it is critical to determine how to design electronic learning materials that tailor to student motivation and facilitate learning. Students were asked to complete an online plant breeding activity, motivation survey and an online learning quiz related to the activity. The control group of students was those who elected not to complete the activity, while the experimental group of students chose to complete the activity. Motivation scores were compared between control and experiment groups, courses, and gender using independent sample t-tests. Pearson correlations were also used ...


A Rearrangement Of The Z Chromosome Topology Influences The Sex-Linked Gene Display In The European Corn Borer, Ostrinia Nubilalis, Jeremy A. Kroemer, Brad S. Coates, Tyasning Nusawardani, S. Dean Rider Jr., Lisa M. Fraser, Richard L. Hellmich 2011 United States Department of Agriculture

A Rearrangement Of The Z Chromosome Topology Influences The Sex-Linked Gene Display In The European Corn Borer, Ostrinia Nubilalis, Jeremy A. Kroemer, Brad S. Coates, Tyasning Nusawardani, S. Dean Rider Jr., Lisa M. Fraser, Richard L. Hellmich

Entomology Publications

Males are homogametic (ZZ) and females are heterogametic (WZ) with respect to the sex chromosomes in many species of butterflies and moths (insect order Lepidoptera). Genes on the Z chromosome influence traits involved in larval development, environmental adaptation, and reproductive isolation. To facilitate the investigation of these traits across Lepidoptera, we developed 43 degenerate primer pairs to PCR amplify orthologs of 43 Bombyx mori Z chromosome-linked genes. Of the 34 orthologs that amplified by PCR in Ostrinia nubilalis, 6 co-segregated with the Z chromosome anchor markers kettin (ket) and lactate dehydrogenase (ldh), and produced a consensus genetic linkage map of ...


Generation Of Transgenic Medicago Sativa Overexpressing "Osmotin-Chitinase" Gene Chimera, Jahnavi Reddy Kancharla 2011 Western Kentucky University

Generation Of Transgenic Medicago Sativa Overexpressing "Osmotin-Chitinase" Gene Chimera, Jahnavi Reddy Kancharla

Masters Theses & Specialist Projects

Medicago is widely used as a forage crop. It is often susceptible to various pathogenic infections and exhibits low growth in drought and extreme climatic conditions. In the current study, a strategy was developed for over-expressing an “Osmotin-Chitinase” gene chimera in transgenic Medicago that could potentially confer resistance to different biotic and abiotic stresses. Seed germination of several cultivars of Medicago (M. sativa ssp. sativa, M. sativa ssp. falcata, M. sativa ssp. caerulea, M. truncatula, and M. Rugosa) was tested to determine the cultivars with good germination rates. Among these, M. sativa ssp. sativa showed an average of 80% germination ...


Influence Of Ensiling Time And Inoculation On Alteration Of The Starch-Protein Matrix In High-Moisture Corn, P. C. Hoffman, N. M. Esser, R. D. Shaver, W. K. Coblentz, Marvin Paul Scott, A. L. Bodnar, R. J. Schmidt, R. C. Charley 2011 University of Wisconsin-Madison

Influence Of Ensiling Time And Inoculation On Alteration Of The Starch-Protein Matrix In High-Moisture Corn, P. C. Hoffman, N. M. Esser, R. D. Shaver, W. K. Coblentz, Marvin Paul Scott, A. L. Bodnar, R. J. Schmidt, R. C. Charley

Agronomy Publications

The fates of hydrophobic zein proteins, which encapsulate corn starch to create vitreous endosperm, have not been investigated in high-moisture corn (HMC). To assess influences of ensiling time and inoculation on zein proteins in HMC, quadruplicate samples of 2 random corn hybrids (A and B), containing 25.7 and 29.3% moisture, were ground, inoculated with (I) or without 600,000 cfu/g of Lactobacillus buchneri 40788 (Lallemand Animal Nutrition, Milwaukee, WI), and ensiled for 0, 15, 30, 60, 120, and 240 d. Nutrient composition [crude protein (CP), starch, acid detergent fiber, and neutral detergent fiber], fermentation (pH, lactate, and ...


Analysis Of Rice Blast Resistance Genes In The National Small Grains Collection (Nsgc), Moytri RoyChowdhury 2011 University of Arkansas, Fayetteville

Analysis Of Rice Blast Resistance Genes In The National Small Grains Collection (Nsgc), Moytri Roychowdhury

Theses and Dissertations

Identification of blast resistance genes in rice germplasm is one of the most important activities of rice breeding programs in worldwide. The objective of this research was to characterize two major blast resistance genes, Pi-z and Pi-b, in selected rice germplasm. A simple sequence repeat DNA marker, AP5659-1 linked to the Pi-z gene, and a Pib dominant marker derived from the Pi-b gene were first used to screen a rice core collection consisting of 1700 accessions estimated to represent 70% of the genetic diversity of rice in the US National Small Grains Collection. There were 131 rice germplasm accessions with ...


Oral Presentation: Plant Genes And Drought Tolerance, Norris Lam 2011 University of Nevada, Las Vegas

Oral Presentation: Plant Genes And Drought Tolerance, Norris Lam

Festival of Communities: UG Symposium (Posters)

Research has shown that a gene from C3 xerophyte Larrea tridentata (creosote bush), LtWRKY21, is involved in pathways governing creosote bush’s high tolerance to environmental stress. By understanding the way in which creosote bush adapts to drought, crop plants can be engineered to be more drought tolerant during times of imminent global climate change. To study the underlying mechanisms of creosote bush drought response, the LtWRKY21 gene was mobilized into the model organism Arabidopsis thaliana. Chlorophyll degradation, cellular electrolyte leakage, and water content in leaves will serve as indicators of drought tolerance in LtWRKY21-transgenic A. thaliana after treatment in ...


Producción Artesanal De Semilla De Sorgo, Máximo Antonio Hernández Valle 2011 CENTA

Producción Artesanal De Semilla De Sorgo, Máximo Antonio Hernández Valle

INTSORMIL Presentations

Objectivos:

General:

Producir semilla de calidad para que los productores tengan disponibilidad de esta y así incrementar la producción.

Específicos:

Que haya disponibilidad de semilla en el mercado para satisfacer la demanda de siembra

Fomentar el uso de variedades mejoradas con alto potencial de rendimiento de grano

Que nuevos productores se capaciten en la producción artesanal y certificada de semilla.


Nuevas Variedades De Sorgo “Bmr” En America Central Y Haiti, René Clará Valencia, Bill Rooney, Elvis A. Heinrichs, Ostilio R. Portillo 2011 CENTA

Nuevas Variedades De Sorgo “Bmr” En America Central Y Haiti, René Clará Valencia, Bill Rooney, Elvis A. Heinrichs, Ostilio R. Portillo

INTSORMIL Presentations

Objectivos

Identificar las mejores variedades “bmr” para las condiciones de cada país.

Reproducir y transferir semilla de las mejores variedades en cantidades suficientes para ponerlas accesibles a todos los agricultores.

Demostrar que estas nuevas variedades “bmr” son más nutritivas que las tradicionales y capaces de producir más alimentos para la población.

Generalizar el uso de estas variedades para poder fortalecer la seguridad alimentaria de los países participantes.


Review Of The Tallgrass Prairie Center Guide To Seed And Seedling Identification In The Upper Midwest. By Dave Williams., H. L. Hillhouse 2011 University of Nebraska-Lincoln

Review Of The Tallgrass Prairie Center Guide To Seed And Seedling Identification In The Upper Midwest. By Dave Williams., H. L. Hillhouse

Great Plains Research: A Journal of Natural and Social Sciences

This book will please both practitioners of prairie restoration and more general prairie enthusiasts. It includes 72 grass and forb species, and the focus is clearly on species often found in tallgrass prairie plantings in the upper Midwest. The grasses and forbs are presented separately here, and for each group a morphological key is provided to divide the species into "Key Characteristic Groups." Because these groups are based on morphological similarity, species within a group are often-but not always-closely related.

Short and highly portable, the book covers the most common species in plantings. The only thing that would have delighted ...


Digital Commons powered by bepress