Frank L. Haynes Graduate Student Competition Award Winners
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1st place: Venkata Charepalli from Jairam Vanamala’s group at The Pennsylvania State University
Title: A novel proteomic approach reveals molecular insights for anti-colon cancer efficacy of color-fleshed potatoes.
Venkata evaluated the effect of baked purple flesh potatoes against colon cancer stem cells in mice. He found that including purple potatoes in the diet decreased the amount of a molecular indicator of colon cancer stem cells and suppressed tumor incidence. Venkata presented his methods and findings clearly and with great enthusiasm.
2nd place: Curtis Frederick from Paul Bethke’s group at the University of Wisconsin
Title: Evaluation of hyperspectral reflectance for estimating dry matter and sugar concentration in processing potatoes.
Curtis evaluated hyperspectral reflectance imaging as a tool for estimating potato tuber dry matter content and sugar contents. He found that this method could be used accurately and rapidly to measure within tuber dry matter content in field, storage, or lab settings. Curtis explained a complex topic clearly, using carefully prepared visual aids and a relaxed presentation style.
3rd place (tie): Chandler Dolezal from Mark Pavek’s group at Washington State University
Title: The effects and economic implications of differing phosphorus fertilizer application techniques and rates.
Chandler examined how phosphorous application rate and method of application influenced potato growth, profitability and potential environmental impacts. His data showed that method of application had little effect, and high phosphorous rates were inadvisable. Chandler gave a compelling rational for his research and presented his data in a way that was logical and easy to follow.
3rd place (tie): Kathryn Bolding from Mark Pavek’s group at Washington State University.
Title: Cultural management of Clearwater Russet.
Kathryn described research on how seed spacing and nitrogen fertilization rate effected marketable yield and economic value of the recently introduced fry processing variety Clearwater Russet. Kathryn gave a poised, clear presentation that included recommendations for seed spacing and petiole nitrates that maximize economic value of the harvested crop.
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1st Place: Derek Herman from Dr. Rick Knowles' group.
Title: Screening sweetening-resistant clones for tolerance to heat stress.
Derek developed a post harvest protocol to identify lines that do not lose their resistance to coldinduced sweetening (CIS) as a result of heat stress. Potatoes with low invertase as a result of RNAi silencing were shown to maintain resistance to cold induced sweetening following a heat stress treatment, but many other clones lost resistance to CIS. Payette Russet, a new line from the Idaho breeding program, was a rare example of a conventionally bred clone that had excellent CIS resistance following the heat stress treatment.
2nd Place: Luke Steere from Dr. William Kirk's group.
Title: Predicting potato early die using the conditional probability of Verticillium dahliae colony forming units in Michigan commercial potato fields.
Luke showed that the number of Vd colony forming units in subsamples of soil from production fields could be transformed into a conditional probability map for the whole field. The map could then be used to identify regions likely to have significant disease pressure. Spatial heterogeneity in Vd infection pressure was observed, and this could be used to guide decisions about where and when to apply soil fumigants.
3rd Place: Amanda Crook from Dr. Harlene Hatterman-Valenti's group
Title: Marketability and seed production effects from glyphosate drift injury to Red Norland potato.
Amanda looked at the effect of simulated glyphosate drift on appearance and seed piece performance of Red Norland potatoes and showed that exposure at the time of tuber initiation resulted in a decrease in tuber number at harvest and an increase in damaged tubers. Conversely, application of glyphosate during tuber bulking at all but the lowest concentration used resulted in reduced emergence when harvested tubers were used as seed.
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1st Place: Laura Markham, Penn State University
Title: Potatoes Can’t Take the Heat: Effects of Cultivar and Processing on Global Metabolite/Nutritional Profiles
2nd Place: Christian T. Christensen, University of Florida
Title: “Breaking Physiological Dormancy in Tubers of Solanum chacoense
3rd Place: Abigail Sido, Penn State University
Title: Purple and White Potatoes, even after Processing, Suppress Colonic Interleukin-6 Expression, a Pro-inflammatory Cytokine, in a Highfat Consuming Pig Model
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1st Place: Annie Christine Boucher, Universite de Sherbrooke, QC
Title: New Information on the Historical Introduction of the Golden Nematode in North America
2nd Place: Gabriell Fortin, Universite Laval, QC
Title: Use of a Genotyping-by-Sequencing (GBS) Approach for Marker-Assisted Backcrossing of Resistance to Golden Nematode
3rd Place: Jaebum Park, Cornell University
Title: QTL Analysis of Tetraploid Potato for three Potato Agronomic Traits with SNP Markers
4th Place: Kyle Rak, University of Wisconsin-Madison
Title: Genotype x Storage Environment Interactions and Stability of Potato Chip Color: Implications in Breeding for Cold Storage Chip Quality
5th Place: Brenda Elaine Arnold, Virginia Tech
Title: Identification of Candidate Genes for Self-Compatibility in a Diploid Population of Potato Derived from Parents Used in Genome Sequencing
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1st Place: Sridhar Radhakrishnan, Colorado State University
Title "Uncooked and baked purple potatoes suppress oxidative stress and inflammatory markers in high-fat diet consuming pig
2nd Place: Katie M. Larson, Colorado State University
Title: Characterization of Carotenoid Content in Potato Germplasm Utilized by the Colorado Potato Breeding and Selection Program.
3rd Place: Arturo Quintero-Ferrer, University of Idaho
Title: Molecular, serological and biological characterization of a recombinant isolate of PvY from Mexico
4th Place: William H. Buhrig, University of Idaho-Parma
Title: Influence of Ethylene on Skin Color and Appearance of Specialty Potatoes.
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1st Place: Jacob Blauer, Washington State University
Title: Changes in ascorbate content of developing tubers relative to transcription of genes in the Smirnoff-Wheeler pathway
2nd Place: Sarah Turner, Texas A&M University
Title: Effect of purple and white potato extracts on prostate cancer development in athymic nude mice.
3rd Place: Sridhar Radhakrishnan, Colorado State University
Title: Purple potato anthocyanins, even after processing, exert anti-cancer properties in vitro and suppress oxidative stress in obese pig.
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1st Place: Daniel Zommick, Washington Statue University
Title: Post harvest mottling of Premier Russet tubers may be a consequence of accelerated aging
2nd Place: Elliott Toevs, University of Idaho
Title: Potato identity preservation: attitudes and logistics of reintroducing genetically modified potatoes to the market
3rd Place: Joshua LeMonte, Brigham Young University
Title: Polymer coated urea in potatoes
4th Place: Henry Castleberry, Colorado State University
Title: Development of an experimental design to study pressure flattening in potatoes
5th Place: Christopher Hiles, Washington State University
Title: Defining inseason nitrogen needs to maximize profits from Alturas and Premier Russet
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1st Place: Gina Greenway, University of Idaho
Title: Forecasting Organic Potato Demand
2nd Place: Calvin Glaspie, Michigan State University
Title: Tolerance of Potato Mini-tubers to PRE and POST Herbicide Applications
3rd Place (tie): Julien Pompon, University of New Brunswick
Title: The Characterization of Solanum chomatophilum Resistance Mechanism to Aphid Potato Pests
3rd Place (tie): Nicole Nichol, Michigan State University
Title: Evaluation of CBF1 Transgenic Potatoes
4th Place: Jose Ortega, Oregon State University
Title: Premier Russet: A Source of Strain-specific Resistance to Potato Virus Y (PVY)
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2nd Place (tie): Andrew Houser, Colorado State University
Title: Development of a greenhouse assay to evaluate potato germplasm for susceptibility to powdery scab
2nd Place (tie): Magnifique Nzaramba, Texas A&M University
Title: ‘Phenolic and glycoalkaloid levels of S. jamesii accessions and their antiproliferative effect on human prostate and color cancer cells in vitro
3rd Place: Juan Rodriguez, North Dakota State University
Title: Infection efficiency of three laboratory methods to inoculate potato tubers with Phytophthora infestans
4th Place (tie): Nicole Nichol, Michigan State University
Title: CBF1 transgenic potatoes studied under drought conditions’
4th Place (tie): Yongfei Zhang, Cornell University
Title: Loci that influence anthocyanin pigmentation of potato tuber flesh
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1st Place: Michael Copas, University of Wisconsin
Title: Influence of compaction and subsoil tillage on soil water movement and potato rooting patterns
2nd Place: Magnifique Nzaramba, Texas A&M University
Title: The influence of production environments on antioxidant activity, phenolics and specific gravity in potato (Solanum tuberosum L.)
3rd Place: Jeffery Davis, University of Minnesota
Title: Identifying and mapping resistance to green peach aphid, Myzus persicae (Sulzer) in potato
4th Place: Mary LeMere, University of Wisconsin
Title: The effects of fumigation, nitrogen fertility, and varietal resistance to early dying (Verticillium dahliae) and early blight (Alternaria solani) on crop health and productivity
5th Place (tie): Diego Fajardo, University of Wisconsin
Title: Species and series boundaries of Solanum series Conicibaccata and phenetically similar species in ser. Piurana (sect. Petota): Morphological data from a field study in Peru
5th Place (tie): Christine Worthington, University of Florida
Title: Effect of polymer coated urea and ammonium nitrate fertilizer on yield & quality of ‘Atlantic’ potato under simulated leaching rainfall events in northeast Florida
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1st Place: Lavanya Reddivari, Texas A&M University
Title: Specialty potatoes (Solanum tuberosum) as a source of bioactive compounds to reduce human prostate cancer cell proliferation in vitro
2nd Place: Dennis Atkinson, University of Idaho
Title: Role of seed and soil borne inoculum on the development of Rhizoctonia in potato
3rd Place: Jeffery Davis, University of Minnesota
Title: Identifying resistance to aphids in crosses with somatic fusions of Solanum tuberosum L. and Solanum bulbocastanum
4th Place (tie): Karthikeyan Narayanan, Nova Scotia Agricultural College
Title: Gene expression studies on genetic control of after-cooking darkening in diploid potatoes
4th Place (tie): E.P. Driskill Jr., Washington State University
Title: Sweetening responses to unconventional storage temperature regimes in potato tubers of different maturity
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1st Place: Angel Lara-Chavez, University of Minnesota
Title: Sample size for selection of cold chipping genotypes from haploid-species hybrids
2nd Place: Caludia Granda, Texas A&M University
Title: A new approach to reduce the development of acrylamide in potato chips
3rd Place: Sonia Bolvaran, University of Minnesota
Title: Comparison between propagule sources for determining foliar resistance to late blight (P. infestans) in early breeding generations
4th Place: Dimitre Mollov, University of Minnesota
Title: Incidence of PLRV induced tuber net necrosis in potato breeding populations
5th Place: David Esplin, University of Minnesota
Title: Genetic gain from early generation selection for cold chipping from 2x-2x, 2x-4x, 4x-2x, and 4x-4x crosses in potato
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1st Place: Mark J. Pavek & RE Thornton
Title: Economic impact of missing and irregularly spaced potato plants.
2nd Place: Christina Rea & James Lorenzen
Title: Use of single nucleotide polymorphisms to map resistance gene analogs in potato.
3rd Place: David L. Esplin & C.A. Thill
Title: Selection for cold chipping genotypes in populations derived by sexual polyploidization.
4th Place (tie): Sandra E. Cantle & G. Wang-Pruski
Title: Identification of cinnamic acid 4- hydroxylase in potato (Solanum tuberosum L.) and its relationship to after-cooking darkening
4th Place (tie): Dimitre S. Mollov & C.A. Thill
Title: Heritability of asyumptomatic expression to potato virus Y.
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1st Place: Luis Fernando Reyes, Texas A&M University
2nd Place: Ruofang Zhang, Pennsylvania State University
3rd Place: Ioana Dinu, University of Minnesota
4th Place: Robin Young, University of Manitoba
5th Place: Danielle Posch, University of Minnesota
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1st Place: David Zlesak, University of Minnesota
2nd Place: Alexander Johnson, Virginia Polytechnic Institute and State University
3rd Place: Danielle Posch, University of Minnesota
4th Place: Malay Saha, North Dakota State University
5th Place: Andy Hornbacher, University of Idaho