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Reassessment Of Practical Subspecies Identifications Of The Usda Daucus Carota L. Germplasm Collection: Morphological Data, David M. Spooner, Mark P. Widrlechner, Kathleen R. Reitsma, Debra E. Palmquist, Slim Rouz, Zeineb Ghrabi-Gammar, Mohamed Neffati, Béchir Bouzbida, Philipp W. Simon, Mohammed El Koudrim 2014 Iowa State University

Reassessment Of Practical Subspecies Identifications Of The Usda Daucus Carota L. Germplasm Collection: Morphological Data, David M. Spooner, Mark P. Widrlechner, Kathleen R. Reitsma, Debra E. Palmquist, Slim Rouz, Zeineb Ghrabi-Gammar, Mohamed Neffati, Béchir Bouzbida, Philipp W. Simon, Mohammed El Koudrim

NCRPIS Publications and Papers

The genus Daucus includes about 20 recognized species. The most widespread and economically important species, Daucus carota L., occurs on almost every continent. The cultivated carrot, subsp. sativus (Hoffm.) Schübl. and G. Martens, has been selected from wild populations that are extremely diverse, especially in the western Mediterranean. The predominant outcrossing and the lack of sexual isolating mechanisms among recognized infraspecific taxa complicate the taxonomy and identification of the wild populations, resulting in widely different interpretations of the number of infraspecific taxa. We measured 36 morphological characters from multiple individuals within each of 155 accessions of D. carota and from ...


Registration Of ‘Mattern’ Waxy (Amylose-Free) Winter Wheat, P S. Baenziger, R A. Graybosch, D K. Santra, T Regassa, Y Jin, S Wegulo, G Bai, P S. Amand, X Chen, B Seabourn, F Dowell, R Bowden, D M. Marshall 2014 University of Nebraska, Lincoln

Registration Of ‘Mattern’ Waxy (Amylose-Free) Winter Wheat, P S. Baenziger, R A. Graybosch, D K. Santra, T Regassa, Y Jin, S Wegulo, G Bai, P S. Amand, X Chen, B Seabourn, F Dowell, R Bowden, D M. Marshall

Teshome H. Regassa

‘Mattern’ (Reg. No. CV-1092, PI 665947) hard winter waxy wheat (Triticum aestivum L.) was developed cooperatively by the USDA–ARS and the Nebraska Agricultural Experiment Station and released in 2012. Mattern has red grain color and waxy (amylose-free) endosperm starch. It was released primarily for its unique end-use quality attributes and for grain yield competitive with currently grown Nebraskaadapted cultivars. The waxy starch is conditioned by the presence of three naturally occurring mutations that eliminate production of the enzyme granule-bound starch synthase. Granule-bound starch synthase synthesizes amylose in typical wheats and other cereal crops. Mattern was tested experimentally as NX04Y2107 ...


Fusarium Head Blight Resistance And Agronomic Performance In Soft Red Winter Wheat Populations, Daniela Sarti Dvorjak 2014 University of Kentucky

Fusarium Head Blight Resistance And Agronomic Performance In Soft Red Winter Wheat Populations, Daniela Sarti Dvorjak

Theses and Dissertations--Plant and Soil Sciences

Fusarium head blight (FHB), caused by Fusarium graminearum Schwabe [telomorph: Gibberella zeae Schwein.(Petch)], is recognized as one of the most destructive diseases of wheat (Triticum aestivum L. and T. durum L.) and barley (Hordeum vulgare L.) worldwide. Breeding for FHB resistance must be accompanied by selection for desirable agronomic traits. Donor parents with two FHB resistance quantitative trait loci (QTL) Fhb1 (chromosome 3BS) and QFhs.nau-2DL (chromosome 2DL) were crossed to four adapted SRW wheat lines to generate backcross and forward cross progeny. F2 individuals were genotyped and assigned to 4 different groups according to presence/ absence of ...


The Performance Of Bacterial Phytosensing Transgenic Tobacco Under Field Conditions, Michael Harrison Fethe 2013 University of Tennessee, Knoxville

The Performance Of Bacterial Phytosensing Transgenic Tobacco Under Field Conditions, Michael Harrison Fethe

Masters Theses

Currently the platforms for wide-area detection of environmental contamination are limited. Therefore, there is interest in developing new platforms, especially for use in crop plants to detect and report the presence of biotic and abiotic stress agents. A biosensor uses a biological organism or substrate to detect the presence of an elicitor (i.e., heavy metal, TNT, or bacteria). The foundational groundwork to create biosensors in transgenic plants exists. The creation of bacterial phytosensing transgenic tobacco containing an orange fluorescent protein (OFP) reporter driven by synthetic pathogen-inducible promoters provides a fluorescent signal when infected with phytopathogens for earlier detection in ...


Availability And Accessibility Of Research Outputs In Nars: A Case Study With Iari, Gitanjali Tandon, Sridhar Gutam, Lalitha Poluru, A K. Mishra, P S. Pandey, Chandrasekharan H 2013 SelectedWorks

Availability And Accessibility Of Research Outputs In Nars: A Case Study With Iari, Gitanjali Tandon, Sridhar Gutam, Lalitha Poluru, A K. Mishra, P S. Pandey, Chandrasekharan H

Sridhar Gutam

This article focuses on the trends in publication, authorship pattern, availability, and accessibility of articles during 2008–10 from the Indian Agricultural Research Institute (IARI), a constituent of the National Agricultural Research System in India. The data reveal that during the period of study, researchers from IARI produced 1,833 publications, most of which were jointly authored, and that the most preferred journal for publication by researchers is the Indian Journal of Agricultural Science, which is now an Open Access journal. While publications from IARI are available to subscribers of the Consortium for e-Resources in Agriculture (CeRA), public availability to ...


Progress And Future Prospects Of Developing Transgenics In Mango, Rajesh Pati 2013 SelectedWorks

Progress And Future Prospects Of Developing Transgenics In Mango, Rajesh Pati

Rajesh Pati

Mango (Mangifera indica L.) is the most important fruit crop of the world. India ranks first among world’s mango producing countries accounting for 57.18 % of the total world mango production of 19.22 million tones. With the development of rDNA technology, plant breeders have access to a large number of genes that can be integrated into the plant genome.


Economic Impact Assessment Of Sorghum, Millet And Other Grains Crsp: Sorghum And Millet Germplasm Development Research, Timothy J. Dalton, Yacob A. Zereyesus 2013 University of Nebraska - Lincoln

Economic Impact Assessment Of Sorghum, Millet And Other Grains Crsp: Sorghum And Millet Germplasm Development Research, Timothy J. Dalton, Yacob A. Zereyesus

INTSORMIL Scientific Publications

As a result of the offsetting effect of a rise in productivity and decline in harvested area, the world sorghum production (tonnes) has been on a horizontal trend. The combined effect of a decline in area harvested and a rise in yield productivity have resulted in an overall increase in world millet production (tonnes) trend.

During the last three decades, significant numbers of breeding lines, parental stocks, germplasm and cultivars have been released through INTSORMIL/host countries collaboration around the world. Some of the remarkable breeding success stories include the release of the first hybrid sorghum Hageen Dura (HD-1) and ...


The History Of Trial Gardens, Hallie Schmidt 2013 California Polytechnic State University

The History Of Trial Gardens, Hallie Schmidt

Horticulture and Crop Science

Essay explores the history of home gardening and seed industry in America and the conditions that led to the development of the All-America Selections.


Identifying Molecular Markers Associated With Salt And Boron Tolerance In Poplar Trees, Darshanpreet Gill, Nathan Follen, Davis W. Cheng, Kyan Salehi, Gary Banuelos, James P. Prince 2013 California Polytechnic State University

Identifying Molecular Markers Associated With Salt And Boron Tolerance In Poplar Trees, Darshanpreet Gill, Nathan Follen, Davis W. Cheng, Kyan Salehi, Gary Banuelos, James P. Prince

STEM Teacher and Researcher (STAR) Program Posters

Standard irrigation practices promote salt and boron accumulation in soils on the Westside of Central California. The build-up of these inorganic salts leads to the degradation of arable land and reduction of crop production. Different clones of poplar trees have been shown to grow in salt- and boron-contaminated soils, and in doing so, gradually remove significant amounts of these inorganic salts from the soil. In an effort to identify molecular markers linked with salt and boron tolerance in poplars, 31 PCR primer pairs have been designed based on candidate genes identified from the literature, and an additional 31 PCR primer ...


Bioconfinement Of A Putatively Sterile Nicotiana Hybrid And Development Of Tools For Assessing Gene Flow, John Hollis Rice 2013 University of Tennessee, Knoxville

Bioconfinement Of A Putatively Sterile Nicotiana Hybrid And Development Of Tools For Assessing Gene Flow, John Hollis Rice

Masters Theses

Production of transgenic crops in open field environments is an ongoing concern of due to the potential for gene flow. New transgenic crops, such as plant-made-pharmaceuticals may generate additional concerns about effects of adventitious transgenes. Use of a bioconfinement strategy may alleviate any consequences by preventing gene flow. The following chapters discuss previous and current research on gene flow, testing of a Nicotiana hybrid system for bioconfinement efficiency, and development of methods for transgene detection. The candidate ‘platform plant’ that was tested is a Nicotiana hybrid (Nicotiana tabacum ‘TN 90’ × Nicotiana glauca) previously identified to be sexually sterile. To quantify ...


Identification Of Cyclophilin Gene Family In Soybean And Characterization Of Gmcyp1, Hemanta Raj Mainali 2013 Western University

Identification Of Cyclophilin Gene Family In Soybean And Characterization Of Gmcyp1, Hemanta Raj Mainali

University of Western Ontario - Electronic Thesis and Dissertation Repository

I identified members of the Cyclophilin (CYP) gene family in soybean (Glycine max) and characterized the GmCYP1, one of the members of soybean CYP. CYPs belong to the immunophilin superfamily with peptidyl-prolyl cis-trans isomerase (PPIase) activity. PPIase catalyzes the interconversion of the cis- and trans-rotamers of the peptidyl-prolyl amide bond of peptides. After extensive data mining, I identified 62 different CYP genes in soybean (GmCYP1 to GmCYP62), of which 8 are multi-domain proteins and 54 are single domain proteins. At least 25% of the GmCYP genes are expressed in soybean. GmCYP1 localizes to the nucleus and the cytoplasm and ...


Estudios Científicos En El Estado De Hidalgo Y Zonas Aledañas, Volumen Ii, Griselda Pulido-Flores, Scott Monks 2013 University of Nebraska - Lincoln

Estudios Científicos En El Estado De Hidalgo Y Zonas Aledañas, Volumen Ii, Griselda Pulido-Flores, Scott Monks

Zea E-Books

Los 16 capítulos que conforman este libro son una contribución al conocimiento de la biodiversidad y conservación de los recursos naturales en el estado de Hidalgo, México.

Se aborda el derecho de propiedad intelectual en la biodiversidad, citando algunos ejemplos de México. Así mismo, se presenta un estudio de la biodiversidad y distribución de la herpetofauna en cuatro tipos de vegetación. Desde el punto de vista de la helmintología se presentan dos estudios de los helmintos parásitos de vertebrados silvestres; con nuevos registros de hospederos y localidades de algunas especies de helmintos para Hidalgo. También, se aborda el uso de ...


High Occurrence Of Functional New Chimeric Genes In Survey Of Rice Chromosome 3 Short Arm Genome Sequences, Chengjun Zhang, Jun Wang, Nicholas C. Marowsky, Manyuan Long, Rod A. Wing, Chuanzhu Fan 2013 Wayne State University

High Occurrence Of Functional New Chimeric Genes In Survey Of Rice Chromosome 3 Short Arm Genome Sequences, Chengjun Zhang, Jun Wang, Nicholas C. Marowsky, Manyuan Long, Rod A. Wing, Chuanzhu Fan

Biological Sciences Faculty Research Publications

In an effort to identify newly evolved genes in rice,we searched the genomes of Asian-cultivated rice Oryza sativa ssp. japonica and its wild progenitors, looking for lineage-specific genes. Using genome pairwise comparison of approximately 20-Mb DNA sequences from the chromosome 3 short arm (Chr3s) in six rice species, O. sativa, O. nivara, O. rufipogon, O. glaberrima, O. barthii, and O. punctata, combined with synonymous substitution rate tests and other evidence, we were able to identify potential recently duplicated genes, which evolved within the last 1 Myr. We identified 28 functional O. sativa genes, which likely originated after O. sativa ...


Reverse Genetic Analysis Of A Cysteine Protease-Encoding Gene (Rd19a) Of Arabidopsis Thaliana In Relation To The Mechanism Of Resistance To The Piercing/Sucking Insect Myzus Persicae, Siobhan A. Cusack 2013 The University of Maine

Reverse Genetic Analysis Of A Cysteine Protease-Encoding Gene (Rd19a) Of Arabidopsis Thaliana In Relation To The Mechanism Of Resistance To The Piercing/Sucking Insect Myzus Persicae, Siobhan A. Cusack

Honors College

A recent study in Solanum bulbocastanum (a wild relative of the cultivated potato) aiming to identify potential genes involved in aphid and pathogen resistance mechanisms found that a homolog of the Arabidopsis thaliana cysteine protease gene RD19a is upregulated during aphid infestation. RD19a is upregulated in response to abiotic stresses such as drought and high salinity, and rd19a mutants show increased susceptibility to bacterial infection. In this study, Arabidopsis rd19a mutants and wild-type plants were subjected to aphid feeding to observe and compare the molecular, physiological and phenotypic responses. The aim was to further establish the proof of concept regarding ...


Alternative Poa Species As Permanent And Temporary Turfgrasses In The Transition Zone, Samuel Lucas Freshour 2013 University of Tennessee, Knoxville

Alternative Poa Species As Permanent And Temporary Turfgrasses In The Transition Zone, Samuel Lucas Freshour

Masters Theses

As restrictions on water, fertilizer, and pesticide use increase, along with public pressure, turfgrass practitioners will need ways to meet the challenges of reduced inputs while still maintaining acceptable turf quality. Proper selection of turfgrass species and cultivars that are adapted to the climate, intended use, and level of expectation is the best and first line of defense for reduced input situations. The objective of this study was to evaluate alternative species from the bluegrass (Poa) genus for their performance as both permanent and temporary winter turfgrass species. In 2010 and 2011, 45 different treatments consisting of 37 different bluegrasses ...


Effects Of Leaflet Orientation And Root Morphology On Physiological Traits And Yield In Soybeans., Richard DeWayne Johnson 2013 University of Tennessee, Knoxville

Effects Of Leaflet Orientation And Root Morphology On Physiological Traits And Yield In Soybeans., Richard Dewayne Johnson

Doctoral Dissertations

Drought is the most important abiotic stress adversely affecting soybean (Glycine max (L.) Merr.) yield. Leaflet orientation has been shown to reduce leaflet temperatures and transpiration while root morphology has been related to slower wilting phenotypes. The objective of this study was to investigate effects of leaflet orientation and rooting morphology on whole plant transpiration, yield, water use efficiency, and other physiological traits in soybeans using grafting techniques, population lines, near-isogenic lines, and restrained leaf canopy experiments. Experiments were conducted in Knoxville, TN with additional yield trial plots at Springfield, Spring Hill, and Milan, TN. Data were collected on whole ...


Squash Variety Trials Summer 2012, Rebecca Brown 2013 University of Rhode Island

Squash Variety Trials Summer 2012, Rebecca Brown

Rhode Island Agricultural Experiment Station Bulletin

Variety trials of summer squashes and zucchini conducted in Kingston, RI, USA.


Epigenetics Of Stress Adaptation In Arabidopsis: The Case Of Histone Modifications, Behnaz Najafi Majdabadi Farahani 2013 Western University

Epigenetics Of Stress Adaptation In Arabidopsis: The Case Of Histone Modifications, Behnaz Najafi Majdabadi Farahani

University of Western Ontario - Electronic Thesis and Dissertation Repository

Changes in the epigenetic status of plants, which contribute to changes in gene expression, in response to abiotic stress are well documented. However, their stability and transmission to subsequent generations, and their incorporation into plant stress adaptation are still a matter for debate. Using chromatin immuno-precipitation and Next Generation Sequencing (ChIP-seq), we compared genome wide enrichment of two histone marks, H3K9ac and H3K4me2, in the progeny of salt stressed and control Arabidopsis plants. Data showed less enrichment of the H3K9ac in the chromatin of the progeny of salt stressed plants, but no changes were detected in the enrichment of the ...


Melon Variety Trials, 2012, Rebecca Brown 2013 University of Rhode Island

Melon Variety Trials, 2012, Rebecca Brown

Rhode Island Agricultural Experiment Station Bulletin

Melon variety trial conducted at Kingston, RI, in summer of 2012.


Leek Variety Trials, 2012, Rebecca Brown, Noah Leclaire-Conway 2013 University of Rhode Island

Leek Variety Trials, 2012, Rebecca Brown, Noah Leclaire-Conway

Rhode Island Agricultural Experiment Station Bulletin

Variety trial of leek varieties conducted at Kingston, RI, in 2012.


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