College of Agriculture and Life Sciences (CALS): Recent submissions
Now showing items 1-20 of 5374
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Genome Reduction in Tetraploid Potato Reveals Genetic Load, Haplotype Variation, and Loci Associated With Agronomic Traits
(2018-07-03)The cultivated potato (Solanum tuberosum) has a complex genetic structure due to its autotetraploidy and vegetative propagation which leads to accumulation of mutations and a highly heterozygous genome. A high degree of ... -
Submergence and Waterlogging Stress in Plants: A Review Highlighting Research Opportunities and Understudied Aspects
(2019-03-22)Soil flooding creates composite and complex stress in plants known as either submergence or waterlogging stress depending on the depth of the water table. In nature, these stresses are important factors dictating the species ... -
Diversity and Functional Analysis of the FeMo-Cofactor Maturase NifB
(2017-11-14)One of the main hurdles to engineer nitrogenase in a non-diazotrophic host is achieving NifB activity. NifB is an extremely unstable and oxygen sensitive protein that catalyzes a low-potential SAM-radical dependent reaction. ... -
The Department of Animal & Poultry Sciences Newsletter, Fall 2006
(Virginia Tech, 2006)Published twice a year, this newsletter details student, faculty, and staff accomplishments and activities in the Department of Animal and Poultry Sciences at Virginia Tech. -
Field survey of Drosophila suzukii (Matsumura) and Zaprionus indianus Gupta (Diptera: Drosophilidae) in Maui, Hawaii
(Virginia Tech, 2019-04-18)Drosophila suzukii (Matsumura) and Zaprionus indianus Gupta (Diptera: Drosophilidae) are notable agricultural pests of soft-skinned fruits. Efficient field surveying is vital in an integrated pest management program. A ... -
Unlocking New Insights into Riverscapes with Drone-based Laser Scanners
(New River Symposium, 2019-04-12)Measurement of physical characteristics across space and time is essential for research and management of aquatic ecosystems. Physical parameters help us quantify and understand channel morphology, aquatic and riparian ... -
The hub protein loquacious connects the microRNA and short interfering RNA pathways in mosquitoes
(2015-04-20)Aedes aegypti mosquitoes vector several arboviruses of global health significance, including dengue viruses and chikungunya virus. RNA interference (RNAi) plays an important role in antiviral immunity, gene regulation and ... -
The Sol Genomics Network (SGN)-from genotype to phenotype to breeding
(2015-01-28)The Sol Genomics Network (SGN, http://solgenomics.net) is a web portal with genomic and phenotypic data, and analysis tools for the Solanaceae family and close relatives. SGN hosts whole genome data for an increasing number ... -
Using maize chromosome segment substitution line populations for the identification of loci associated with multiple disease resistance
(Genetics Society of America, 2019-01-09)Southern Leaf Blight (SLB), Northern Leaf Blight (NLB), and Gray Leaf Spot (GLS) caused by Cochliobolus heterostrophus, Setosphaeria turcica, and Cercospora zeae-maydis respectively, are among the most important diseases ... -
Jikradia olitoria ([Hemiptera]:[Cicadellidae]) transmits the sequevar NAGYIIIβ phytoplasma strain associated with North American grapevine yellows in artificial feeding assays
(Library of the University of Arizona, 2019-01-02)North American Grapevine Yellows (NAGY) is a destructive disease of grapevines caused by phytoplasmas, wall-less bacteria that are insect-transmitted and found in plant phloem tissues. Although the disease was recognized ... -
Leadership Programs, Discourses, and Participants’ True Sense of Self
(Association of Leadership Educators, 2016-07-11)As the challenges communities and organizations face become increasingly complex and interconnected, leadership has continued to evolve to meet these new needs. This applied research study investigated the norms and ... -
Examining host selection by Mexican bean beetle (Coleoptera: Coccinellidae) using mark-release-recapture
(Library of the University of Arizona, 2019-02-17)Mexican bean beetle, Epilachna varivestis Mulsant, is a pest of snap bean and lima bean in the eastern United States. This pest is susceptible to many insecticides available to conventional growers; however, organic ... -
Two-phase Monte Carlo simulation for partitioning the effects of epistemic and aleatory uncertainty in TMDL modeling
(American Society of Civil Engineers (ASCE), 2018-10-29)A two-phase Monte Carlo simulation (TPMCS) uncertainty analysis framework is used to analyze epistemic and aleatory uncertainty associated with simulated exceedances of an in-stream fecal coliform (FC) water quality criterion ... -
Genome-wide association studies for yield-related traits in soft red winter wheat grown in Virginia
(Public Library of Science, 2019-02-22)Grain yield is a trait of paramount importance in the breeding of all cereals. In wheat (Triticum aestivum L.), yield has steadily increased since the Green Revolution, though the current rate of increase is not forecasted ... -
Identification and characterization of the first pectin methylesterase gene discovered in the root lesion nematode Pratylenchus penetrans
(Public Library of Science, 2019-02-22)Similar to other plant-parasitic nematodes, root lesion nematodes possess an array of enzymes that are involved in the degradation of the plant cell wall. Here we report the identification of a gene encoding a cell ... -
First transgenic trait for control of plant bugs and thrips in cotton
(John Wiley and Sons Ltd, 2018-12-18)BACKGROUND: Plant bugs (Lygus spp.) and thrips (Thrips spp.) are two of the most economically important insect pest groups impacting cotton production in the USA today, but are not controlled by current transgenic cotton ... -
Identification of soil bacteria capable of utilizing a corn ethanol fermentation byproduct
(Public Library of Science, 2019-03-08)A commercial corn ethanol production byproduct (syrup) was used as a bacterial growth medium with the long-term aim to repurpose the resulting microbial biomass as a protein supplement in aquaculture feeds. Anaerobic batch ... -
Pathways from research on improved staple crop germplasm to poverty reduction for smallholder farmers
(Elsevier Ltd, 2017-11-01)Innovations to improve staple crop germplasm can reduce poverty and otherwise improve farmer livelihoods through complex and multiple pathways. This paper reviews the evidence for one prominent pathway—through increased ... -
Metagenome tracking biogeographic agroecology: Phytobiota of tomatoes from Virginia, Maryland, North Carolina and California
(Academic Press, 2018–12-05)Describing baseline microbiota associated with agricultural commodities in the field is an important step towards improving our understanding of a wide range of important objectives from plant pathology and horticultural ...
