Source: TEXAS A&M UNIVERSITY submitted to NRP
POTATO BREEDING AND CULTIVAR DEVELOPMENT IN THE SOUTHWEST
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
ACTIVE
Funding Source
SPECIAL GRANT
Reporting Frequency
Annual
Accession No.
1031349
Grant No.
2023-34141-40976
Cumulative Award Amt.
$1,325,293.00
Proposal No.
2023-05584
Multistate No.
(N/A)
Project Start Date
Sep 1, 2023
Project End Date
Aug 31, 2025
Grant Year
2024
Program Code
[AN]- Potato Research
Recipient Organization
TEXAS A&M UNIVERSITY
750 AGRONOMY RD STE 2701
COLLEGE STATION,TX 77843-0001
Performing Department
(N/A)
Non Technical Summary
The Southwestern Regional Potato Cultivar Development Project was initiated 25 years ago by Colorado State University, Texas A&M University, and the University of California at Davis to meet the unique needs of the Southwest potato industry. In recent years, sustainability-related traits such as heat tolerance, water and nitrogen-use efficiency, and reduction of pesticides have gained priority, while high yield of marketable tubers and high tuber quality remain constant selection targets. Crosses between parents carrying complementary traits are followed by marker-assisted selection (MAS) and genomic selection (GS) for progenies, agronomic, biotic, and abiotic, and post-harvest evaluations in State and Southwestern regional trials. Promising selections advance to Western Regional Trials in six states. The specific objectives of the SW project align with all four priority areas described in the RFP and are adjusted based on stakeholder input. Since the inception of the Southwest Potato breeding efforts, 68 cultivars and clonal selections have been released or co-released (the SW group took the lead in the release of 46). These potato cultivars represent a substantial part of the national potato acreage and their contribution to regional and national economies is increasing. Several potato cultivars (nine) released by the Southwest Program were listed in 2022 among the top 50 grown in the nation, representing 18% of the varieties and14% of the seed acreage. Potato varieties released by the Southwestern group ranked second among the four regional projects, behind the Northwest, demonstrating the wide adaptability of Southwest varieties demonstrating the broad reach and impact of the Southwest Project beyond its regional boundaries.
Animal Health Component
60%
Research Effort Categories
Basic
10%
Applied
60%
Developmental
30%
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
2021310108160%
2011310108020%
2031310104020%
Knowledge Area
203 - Plant Biological Efficiency and Abiotic Stresses Affecting Plants; 202 - Plant Genetic Resources; 201 - Plant Genome, Genetics, and Genetic Mechanisms;

Subject Of Investigation
1310 - Potato;

Field Of Science
1040 - Molecular biology; 1081 - Breeding; 1080 - Genetics;
Goals / Objectives
The overall aim of this project is to develop and evaluate improved potato cultivars that meet the unique production, marketing, environmental, and consumer needs of the US SW region.This will be achieved by addressing the following objectives:Develop russet, red, white, chip, and specialty potato cultivars for both the fresh and processing markets incorporating resistances to the major diseases present in the SW.Evaluate advanced selections under diverse environments for agronomic, quality, and postharvest traits critical to the potato industry.Assess climate resilience and sustainability of cultivars and advanced selections.Develop and implement high-throughput methods to screen germplasm for critical traits and incorporate these traits into the breeding programs.Facilitate the commercialization of cultivars released by the SW.
Project Methods
Objective 1. Develop Russet, Red, White, Chip, and Specialty Cultivars for both the Fresh and Processing Markets Incorporating Resistances to the Major Diseases Present in the SW.Hybridization and Selection - Parents will be hybridized/crossed in greenhouses to segregate families. Crossing intends to generate genetic variation and introgress desirable genes. In subsequent steps, selection takes place to identify potato clones with the desired external and internal characteristics for each market class in combination with disease/pest resistances/tolerances.Breeding Data Management - Genovix and Medius will be used as data management systems for the TX and CO Programs, respectively. Medius will be used as a publicly accessible searchable interface for new SW varieties and advanced clones.Molecular Marker-assisted Breeding - Genomic selection (GS) will be applied using StageWise (Endelman, 2023). Genotyping of advanced clones with single nucleotide polymorphism (SNP) markers will continue. Each breeding program will continue to collect genotypic and phenotypic data from 80-100 clones entering replicated trials. Marker-assisted selection (MAS) will be conducted for >100 clones annually for PVY resistance utilizing markers linked to PVY resistance genes (Ryadg, Rysto, and Rychc) (Elison et al., 2020; Slater et al., 2020)Objective 2. Evaluate Advanced Selections under Diverse Environments for Agronomic, Quality, and Postharvest Traits Critical to the Potato Industry.State and Regional Yield Trials - Early and advanced generations of selected clones will be evaluated at state level and ultimately in the SW Regional Trials. Entries are evaluated for numerous traits, including agronomic, morphological, chip and fry quality, chemical composition, and diseases/pests. Colorado, Texas, and California will participate in the National Chip Processing Trial and the National Fry Processing Trial.Health Attributes - We will use a high-throughput metabolomics approach by implementing the Periodic Table of Food Initiative (PTFI; https://foodperiodictable.org) to evaluate advanced potato clones for phytochemicals and minerals important for human health. We will use mass spectrometry techniques and bioinformatics tools to detect phytochemicals and develop a potato phytochemical and mineral profile data set including phenolics, carotenoids, organic acids, amino acids, and 27 minerals (Ahmed et al., 2022). We will also use the Megazyme technique to measure resistant starch in potatoes. Total antioxidant activity using the DPPH method by (Brand-Williams et al., 1995) for all advanced clones will also be evaluated.Post-harvest Evaluations - Post-harvest assessments on selected clones will include blackspot susceptibility, storage, weight loss, dormancy, enzymatic browning, specific gravity, french fry color and texture, and chip quality. Postharvest studies will be conducted to evaluate traits including glycoalkaloids, amylose, amylopectin, blackspot bruise, pressure bruise, texture, sprouting, long-term storage, and weight loss. Glycoalkaloids will be measured as described by Shakya & Navarre (2006).Objective 3. Assess Climate Resilience and Sustainability of Cultivars and Advanced Selections.Heat Stress Evaluations - Total yield, marketable yield, internal tuber defects, external tuber defects, and specific gravity (link to reports website for lists of traits and units, https://potato.tamu.edu/reports/) will be assessed under high-temperature stress field conditions in Springlake and Dalhart, TX for all new clones entering in replicated trials. New genotypic and phenotypic datasets will be combined with existing ones to obtain genomic-estimated breeding values using StageWise (Endelman, 2023) that will guide the selection of parents and advancement of new clones.Nutrient and Water-use Efficiency - Advanced potato clones will be evaluated for their nitrogen (N) and water-use efficiency. N rate experiments will be laid out in a randomized complete block design, with each treatment replicated four times. N rate treatments will include 112, 168, 224, kg ha-1, and a control treatment where no N fertilizer will be applied. Irrigation water treatments will be laid out as randomized complete block design, with each treatment replicated three times. Irrigation water treatments will include 100%, 80%, and 60% of crop evapotranspiration (ET) replacement.Environmental Stability - The stability of various traits associated with yield and quality of potato genotypes in different production environments is key to selecting for climate resiliency. The extremely diverse environments provided by the various SW Regional Trials sites provide a perfect backdrop to analyze stability. Methods discussed by Eberhart and Russell (1966) and Tai (1971) will be used to guide the analysis.Objective 4. Develop and Implement High-Throughput Methods to Screen Germplasm for Critical Traits and Incorporate these Traits into the Breeding Programs.Disease Evaluations - We aim to establish disease evaluation protocols for soft and dry rot, PVY, powdery scab, and tuber necrosis due to PMTV and TRV. Tubers of breeding lines will be inoculated with local isolates of Fusarium oxysporum according to the method of Merlington et al. (2014) with modifications. Tubers will be inoculated with local isolates of Pectobacterium atrosepticum according to the method by Ma et al. (2018). Clones will be tested for their resistance/susceptibility to three strains of PVY, PVYO, PVYN-Wi, and PVYNTN under greenhouse conditions. Fields infested with powdery scab and PMTV/TRV will be identified.Image-based Phenotyping - Drone multispectral images will be acquired weekly, and normalized difference vegetation index (NDVI) time series analysis will be applied to describe vigor differences between potato varieties at different growth stages in Tulelake, CA. Additionally, we will implement image-based phenotyping for two other critical traits: skin color and skin set changes during storage. ImageJ software will be used following the methods described by Caraza-Harter and Endelman (2020).Molecular Tools Development Deployment - Genome-wide association studies (GWAS) and quantitative trait loci (QTL) mapping help identify the genetic architecture underlying important phenotypes and facilitate the development of molecular breeding tools. GWASpoly R package (Rosyara et al., 2016) will be used for marker-trait association studies. The TX and CO breeding programs will perform GWAS or QTL mapping for traits important to the potato industry, including dormancy, heat-induced tuber defects, red color, and disease resistance.Objective 5. Facilitate the Commercialization of Cultivars Released by the SW.Cultural Practices for Optimal Production of Advanced Clonal Selections and Newly Released Cultivars - Trials will be conducted to determine appropriate fertility requirements, spacing, herbicide tolerance, seed size, irrigation requirements, maturity assessments, seed preparation, and vine kill management. Data collection will include total tuber yield, size distribution, external and internal defects, tuber-specific gravity, and skin color. Storability will be assessed. Parameters evaluated will include dormancy, rot, bruising, moisture/turgor loss, and color retention. french fry and chip quality. Provide Seed of Advanced Selections to Growers and Other Research Cooperators - Tubers from the sixth year or earlier of field selections will be introduced into tissue culture in TX and CO to develop disease-tested micropropagated seed stocks. ELISA is commonly used for virus testing, and we have developed molecular diagnostic protocols for our labs, using RT-PCR and qRT-PCR. Colorado and Texas will scan clones for seven viruses using ELISA, RT-PCR, and qRT-PCR.

Progress 09/01/23 to 08/31/24

Outputs
Target Audience:The process of developing new potato cultivars involves a diverse range of target audiences, including potato seed growers, commercial growers, shippers, processors, research and extension personnel, the food distribution system, and consumers. Additionally, the program provides theoretical and practical training to the next generation of professionals, including undergraduate and graduate students, postdoctoral research associates, and youth groups. By engaging young individuals, the program inspires and educates the next generation of agricultural professionals, fostering an early interest in plant breeding and potato cultivation. Changes/Problems:USDA-NIFA funds (this project) provide critical support for the core of the SW (TX, CO, and CA) Potato Variety Development Program. The Texas A&M University Breeding Program has been relying on complementary funds (royalties returned to the program, miscellaneous grants, and in-kind grower support) for many years to sustain personnel and activities. In 2023, Texas A&M University suddenly, and without consultation with the potato breeding group, discontinued returning royalties (18% of the total royalties received, representing about ~$175,000 returned to the breeding program in 2022). The Texas A&M decision will seriously impact the Texas A&M Breeding Program. Plans to fill up the gap will be developed. We will have to request more funds from USDA-NIFA (this project) in subsequent years and be more proactive in obtaining funds, likely for basic research, since funding breeding programs is very difficult. What opportunities for training and professional development has the project provided? 1. Hands-on research experience for undergraduate research assistants, graduate students, research associates and postdocs Eight undergraduate students were involved in practical research such as tissue culture, the generation of segregating populations, screening resistances to the major diseases, and field demonstrations providing them with early exposure to advanced breeding techniques and research methodologies. Five graduate students, 15 research assistants/associates/technicians, and eight postdoctoral scholars gained hands-on experience in significant research activities, including hybridizations, evaluating disease resistance, participating in state and regional trials in the field, and conducting genetic studies on quality and composition. 2. Formal education in several academic courses and guest lectures HORT313 Plant Physiology (Vales): 86 students were taught fundamental and advanced concepts of plant physiology, helping them understand the mechanisms of plant growth and development. HORT325 Vegetable Production (Vales): A guest lecture was delivered to 20 students, covering key aspects of vegetable production and integrating practical breeding insights. PSS 6322 Advanced Plant Breeding (Koym): A specialized guest lecture was provided to 10 graduate students, focusing on advanced techniques and methodologies in plant breeding. HORT580A6 Plant Sciences (Chitwood-Brown): Applied Statistics and Design: 20 students received training in applied statistics and experimental design, essential for conducting robust plant breeding research. Guest Lecture for the 4H organization (Vales): A guest lecture on potato breeding was delivered to 18 high school students in the 4H organization, introducing them to the field of plant breeding and its importance in agriculture. 3. Technical skill development Image-based phenotyping: Training in the use of advanced imaging technologies for phenotyping enabled team members to acquire skills in high-throughput and precise measurement techniques. Climate resilience and sustainability studies: Team members were involved in studies aimed at improving the climate resilience and sustainability of crops, equipping them with knowledge of sustainable agricultural practices. 4. Dissemination of research through various academic channels and networking with peers Peer-reviewed publications: 6 peer-reviewed articles were published, contributing to the scientific community's knowledge and providing researchers with experience in collaborative works and scholarly writing. Conference presentations: 29 oral and poster presentations were made at national and international conferences, allowing researchers to share their findings and network with peers. 5. Professional development through state-level, regional, and national trials: Participation in these trials provided extensive exposure to evaluating plant varieties under different conditions, enhancing the ability to conduct large-scale and comprehensive trials. 6. Education and training of researchers and stakeholders through field demonstrations and reports The project organized field demonstrations and developed comprehensive documentation for educational and practical useaiding in the education and training of researchers and stakeholders. How have the results been disseminated to communities of interest?The results of the project have been widely disseminated to various communities of interest through multiple channels. These efforts have ensured that the results of the project reach a broad audience, including scientists, industry stakeholders, and the general public. 1. Field days: Field days directly disseminated results to growers, researchers, and industry professionals. Field days were held in Bakersfield, CA (40 attendees), Springlake, TX (32 attendees), and Monte Vista, CO (84 attendees), covering the latest potato breeding practices, new/advanced selection demonstrations, and insights into breeding programs and field trials. 2. Field day handbook: A detailed handbook was created and disseminated during field days, serving as a resource for attendees to reference the methodologies and results of the breeding program. The field day is available through program websites. 3. Breeding reports: In-depth breeding reports were compiled and distributed, documenting the progress and outcomes of the breeding trials, and aiding in the education and training of researchers and stakeholders. The breeding report is available through program websites. 4. Academic publications: Published 6 peer-reviewed journal articles, ensuring that the scientific community has access to the latest research findings: 5. SW regional group meeting: The meeting held on January 30, 2024, facilitated discussions on trial results and advanced selections, providing a platform for networking and knowledge exchange among researchers, growers, and industry professionals. 6. Conferences and symposia: Presented findings at various national and international conferences, including the Entomological Association of America Annual Meeting, the Potato Association of America Annual Meeting, the National Association of Plant Breeders Conference and others. Team members shared findings with a diverse audience fostering collaboration and knowledge exchange. 7. Newsletters and popular press: Information about field days and trial results was distributed via multiple popular press venues and newsletters, ensuring that findings reached a broad audience, including local and regional communities involved in potato production. What do you plan to do during the next reporting period to accomplish the goals?1. Develop russet, red, white, chip, and specialty potato cultivars for both the fresh and processing markets incorporating resistances to the major diseases present in the SW. Plan: We will continue our efforts to develop new potato varieties that are resilient to environmental stresses and resistant to major diseases present in the Southwest (SW). Building on previous successes, hybridization and selection will proceed at Colorado State University and Texas A&M University, generating genetic variation and integrating desirable genes. Approximately 200,000 seedlings will be grown for initial selection under field conditions in Colorado and Texas. The Texas program will use the upgraded Genovix system for breeding data management, while Colorado will continue with Medius Re, combining results for WR and SW regional trials. We will expand genomic selection using the StageWise package, genotype new introductions, released varieties, and advanced clones, and employ marker-assisted selection (MAS) for PVY resistance in over 100 clones. By the end of this project, we aim to develop high-quality potato varieties with enhanced yield, market quality, disease resistance, and heat tolerance. 2. Evaluate advanced selections under diverse environments for agronomic, quality, and postharvest traits critical to the potato industry. Plan: We will evaluate advanced potato selections under diverse environments in Colorado, Texas, and California to assess yield, quality, disease resistance, and other traits. Promising clones will enter national and regional potato variety trials. We will focus on health attributes using high-throughput metabolomics through the Periodic Table of Food Initiative and evaluate total antioxidant activity and resistant starch in potatoes. Postharvest evaluations will include assessing blackspot susceptibility, storage characteristics, and chip and French fry quality, using advanced techniques like HPLC for glycoalkaloid measurement and colorimetric methods for amylose and amylopectin ratios. Additionally, we will use the Smart Spud device to reduce bruising during harvest and warehouse operations. 3. Assess climate resilience and sustainability of cultivars and advanced selections. Plan: We will intensify our evaluation of advanced potato selections across diverse environments to address heat stress in Texas, combining new genotypic and phenotypic data with existing datasets to obtain genomic-estimated breeding values using StageWise. Ph.D. students Amaka Ifeduba and Ao Jiao will study the genetic, morphological, and physiological effects of heat tolerance and the impact on tuber dormancy length. We will also evaluate nutrient and water-use efficiency through nitrogen rate experiments and irrigation treatments, analyzing environmental stability using multi-environment trials to refine evaluation methods and improve predictive models. 4. Develop and implement high-throughput methods to screen germplasm for critical traits and incorporate these traits into the breeding programs. Plan: We will develop and implement high-throughput methods to screen potato germplasm for critical traits. Disease evaluations will involve establishing protocols for screening potato clones for responses to soft and dry rot, PVY, and powdery scab. Image-based phenotyping using drone multispectral images will assess potato variety vigor and plant cover at different growth stages. Additionally, we will use image-based methods to evaluate skin color and skin set and perform genome-wide association studies (GWAS) and quantitative trait loci (QTL) mapping for traits such as dormancy, heat-induced tuber defects, and disease resistance. 5. Facilitate the commercialization of cultivars released by the SW. Plan: We will conduct trials across Texas, Colorado, and California to determine optimal cultural practices for potato production, including fertility requirements, plant population density, and irrigation needs. We will introduce tubers from field selections into tissue culture to develop disease-tested micro-propagated seed stocks and protect new varieties under Plant Variety Protection (PVP). Expected releases include experimental clones such as Horizon Russet, Crystal Russet, Dune Russet, and Duncan Russet, aiming to enhance the sustainability and productivity of the SW potato industry.

Impacts
What was accomplished under these goals? 1. Develop russet, red, white, chip, and specialty potato cultivars for both the fresh and processing markets incorporating resistances to the major diseases present in the SW. In 2023, the potato breeding programs in Colorado and Texas planted 148,000 seedling tubers from 173 parental clones, focusing on resistance to Potato virus Y (PVY), late blight, and nematodes. Collaborations with regional programs outside the Southwest enriched the genetic pool for breeding. A total of 1,005 potato clones were chosen for further evaluation and propagation. Several selections from the 2023 SW Regional Trial were advanced or continued in the 2024 Western Regional Trials. For example, the experimental clone CO15016-1RUsto is a long russet and has Rysto gene and it was advanced to Western Regional Trials. 2. Evaluate advanced selections under diverse environments for agronomic, quality, and postharvest traits critical to the potato industry. In 2023, state-level and national processing trials were conducted in Texas, Colorado, and California. These trials evaluated plant growth, tuber yield, size, quality, and disease/pest resistance. Advanced selections were evaluated across multiple US states and in New Brunswick, Canada. The Texas and Colorado programs conducted trials in various locations to develop superior varieties for diverse markets and conditions. Entries in the Western Regional Trials, such as AC10376-2012-1W/Y and CO13003-1RU, demonstrated promising agronomic and quality traits, leading to their further evaluation. 3. Assess climate resilience and sustainability of cultivars and advanced selections. Climate resilience and sustainability emphasized genetic studies. Genomic tools were used to understand the genetic basis of traits and implement genomic selection in tetraploid potato breeding. Total yield, marketable yield, external and internal tuber defects, specific gravity, starch, reducing sugars, minerals, amino acids, chipping and fry qualitywere affected when potatoes grew under high-temperature conditions. Heat-tolerant potato clones have been identified. The genetic basis of traits affected by heat stress is complex (quantitative), and genomic selection is recommended to select clones and advance progenies. 4. Develop and implement high-throughput methods to screen germplasm for critical traits and incorporate these traits into the breeding programs. High-throughput screening methods were developed and implemented to enhance breeding efficiency. Image-based phenotyping using drone multispectral images was conducted at Tulelake, CA, to describe vigor differences between potato varieties at different growth stages. This technology showed potential for early disease detection and assessing plant emergence and stand establishment. The Texas program also processed UAS images to extract features such as plant count and vegetation indices, providing valuable data for breeding decisions. 5. Facilitate the commercialization of cultivars released by the SW. Efforts to facilitate commercialization included obtaining Plant Breeders' Rights (PBR) for Vanguard Russet in Canada and preparing PBR applications for Horizon Russet and Crystal Russet. Field demonstrations highlighted newly released varieties and advanced selections. Events such as the Kern Potato Variety Field Day and various field days in Texas and Colorado showcased the program's achievements to stakeholders. Additionally, teaching activities and publications disseminated knowledge and research findings, further supporting the commercialization process.

Publications

  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Niebaum, B., Gray, C., Holm, D.G., and Chitwood-Brown, J. 2023. Phenotyping red skin color variation and retention in storage of Colorado State University potato germplasm via reflectance and L*A*B* values. Potato Association of America Annual Meeting, Charlottetown, PEI, Canada, July 25, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Yilmaz, E., Chitwood-Brown, J., and Chikh-Ali, M. 2023. Evaluation of male sterility associated with PVY resistance genes. Potato Association of America Annual Meeting, Charlottetown, PEI, Canada, July 25, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chitwood-Brown, J. 2023. Breeding for virus resistance at CSU. WERA89, Denver, CO, March 16, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chitwood-Brown, J. 2023. Concept proposal presentation. Colorado Potato Administrative Committee, Area II, Monte Vista, CO, February 16, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chitwood-Brown, J. 2023. CSU potato breeding and selection program. Vice President of Research, CSU, Fort Collins, CO, February 10, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chitwood-Brown, J. 2023. CSU potato breeding and selection program. Southern Rocky Mountain Agriculture Conference, Monte Vista, CO, February 7, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Holm, D.G., Chitwood-Brown, J., Gray, C., and Niebaum, B. 2023. The Colorado potato breeding and selection program: 1979-2023. Colorado State University Agricultural Experiment Stations Conference, Denver, CO, February 1, 2023. Poster.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Pandey, J., S. Gautam, D.C. Scheuring, J.W. Koym, and M.I. Vales. 2023.Variation and genetic basis of mineral content in potato tubers and prospects for genomic selection. Front. Plant Sci., 14, 1301297.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Blauer, J.M., V. Sathuvalli, B.A. Charlton, S. Yilma, C.C. Shock, N. Baley, R. Qin, E. Feibert, R.G. Novy, J.L. Whitworth, M.J. Pavek, N.R. Knowles, L.O. Knowles, N. Fuller, J.C. Stark, R.R. Spear, M. Thornton, N. Olsen, S. Jayanty, D.A. Navarre, M. Feldman, and M.I. Vales. 2023. Rainier Russet: A dual use russet potato with long tuber dormancy, excellent process quality, and high early harvest packaging efficiency. Am. J. Potato Res., 101, 17-33.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Pandey J., D. Thompson, M. Joshi, D.C. Scheuring, J. Koym, V. Joshi, and M.I. Vales. 2023. Genetic architecture of tuber bound free amino acids in potato and effect of growing environment on the amino acid content. Sci. Rep., 13, 13940.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Gautam, S., R. Morey, N. Rau, D.C. Scheuring, D. Kurouski, and M.I. Vales. 2023. Raman spectroscopy detects chemical differences between potato tubers produced under normal and heat stress growing Conditions. Front. Plant Sci.,14, 1105603.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Pandey, P., D.C. Scheuring, J.W. Koym, J.B. Endelman, and M.I. Vales. 2023. Genomic selection and genome-wide association studies in tetraploid chipping potatoes. Plant Genome, 16, e20297.
  • Type: Journal Articles Status: Published Year Published: 2023 Citation: Baley, N., V. Sathuvalli, B.A. Charlton, C.C. Shock, S. Yilma, R. Qin, E. Feibert, M.I. Vales, R.G. Novy, J.L. Whitworth, J.C. Stark, M.J. Pavek, N.R. Knowles, J.M. Blauer, T.L. Brandt, Yi Wang, M. Thornton, and N. Olsen. 2023. Echo Russet: A russet variety with a high yield of marketable tubers, high processing quality, and few tuber defects. Am. J. Potato Res., 100, 1526.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ifeduba, A.M. and M.I. Vales. 2023. Developing climate smart potatoes to overcome the challenges of global warming. Entomological Association of America Annual Meeting, National Harbor, Maryland, Nov 5-8, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Toinga-Villafuerte, S.E., M.I. Vales, and K.S. Rathore. 2023. CRISPR/Cas9-mediated mutations in the granule-bound starch synthase gene to obtain a waxy version of the potato variety Yukon Gold. Potato Association of America 107th Annual Meeting, Prince Edward Island, Canada, July 23-27, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Jiao, A., S. Gautam, J. Pandey, D.C. Scheuring, J.W. Koym, M.I. Vales. 2023. Genome-Wide Association Studies and Genomic Prediction for Potato Tuber Dormancy. Potato Association of America 107th Annual Meeting, Prince Edward Island, Canada, July 23-27, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ifeduba, A.M., S. Gautam, J. Pandey, S. Toinga-Villafuerte, D.C. Scheuring, J.W. Koym, and M.I. Vales. 2023. Mechanisms of heat tolerance in Vanguard Russet potatoes. Potato Association of America 107th Annual Meeting, Prince Edward Island, Canada, July 23-27, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Vales, M.I., S. Gautam, A.M. Ifeduba, A. Jiao, J. Pandey, S. Toinga-Villafuerte, D.C. Scheuring, and J.W. Koym. 2023. Development of heat-tolerant potato varieties by the Texas A&M Potato Breeding Program. Potato Association of America 107th Annual Meeting, Prince Edward Island, Canada, July 23-27, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Gautam, S., J. Pandey, D.C. Scheuring, J.W. Koym, and M.I. Vales. 2023. Investigating the genetic background of potato tuber defects caused by heat stress. Tools for Genomics-Assisted Breeding in Polyploids Workshop, San Diego, CA, January 12-13, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Toinga-Villafuerte, S.E., M.I. Vales, and K.S. Rathore. 2023. CRISPR/Cas9 targeted mutagenesis of the granule-bound starch synthase gene in potato (Solanum tuberosum L.) to obtain amylose-free starch in the tubers. Plant and Animal Genome Conference XXX, San Diego, CA, January 13-18, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ifeduba, A.M., S. Gautam, J. Pandey, S. Toinga-Villafuerte, D.C. Scheuring, J.W. Koym, and M.I. Vales. 2023. Developing potato cultivars for future climate scenarios: Understanding the mechanisms of heat tolerance in Vanguard Russet potatoes. National Association of Plant Breeders Conference, Greenville, SC, July 16-20, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ifeduba, A.M., S. Toinga-Villafuerte, D.C. Scheuring, and M.I. Vales. 2023. Global-warming ready potatoes: redefining earliness as a heat tolerance strategy. Texas A&M Plant Breeding Symposium, College Station, TX, February 16, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Jiao, A., S. Gautam, J. Pandey, D.C. Scheuring, J.W. Koym, M.I. Vales. 2023. Genome-wide association studies of potato tuber dormancy in response to cold storage. Plant and Animal Genome Conference XXX, San Diego, CA, January 13-18, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Jiao, A., S. Gautam, J. Pandey, D.C. Scheuring, J.W. Koym, M.I. Vales. 2023. Exploration of the genetic background of potato tuber dormancy in response to cold storage. Tools for Genomics-Assisted Breeding in Polyploids Workshop, San Diego, CA, January 12-13, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Pandey, J., S. Gautam, D.C. Scheuring, J.W. Koym, and M.I. Vales. 2023. Genomic regions associated with mineral content in potato tubers and identification of clones with high genomic-estimated breeding value. Plant and Animal Genome Conference XXX, San Diego, CA, January 13-18, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Pandey, J., S. Gautam, D. Scheuring, J. Koym, M.I. Vales. 2023. Genome-wide association studies of mineral content in potato tubers and identification of clones with high genomic-estimated breeding value. Tools for Genomics-Assisted Breeding in Polyploids Workshop, San Diego, CA, January 12-13, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Gautam, S., J. Pandey, D.C. Scheuring, J.W. Koym, and M.I. Vales. 2023. Uncovering genomic regions associated with potato tuber defects under heat stress and identification of heat-tolerant clones. Plant and Animal Genome Conference XXX, San Diego, CA. January 13-18, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Pandey, J., D.C. Scheuring, J.W. Koym, S. Gautam, A. Jiao, A.M. Ifeduba, and M.I. Vales. 2023. Vanguard Russet potato: Unveiling excellence in fresh market. 7th Annual Customer Appreciation, Monte Vista, CO, December 7, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ifeduba, A. M., J. Pandey, and M.I. Vales. 2023. Heat stress and potatoes: An underlying survival mechanism unveiled. Horticultural Sciences Poster Symposium, College Station, TX, College Station, TX, November 30, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Jiao, A, S. Gautam, J. Pandey, D.C. Scheuring, J.W. Koym, and M.I. Vales. 2023. Phenotypic evaluation and genetic analysis of potato tuber dormancy. Horticultural Sciences Poster Symposium, College Station, TX, November 30, 2023. Poster.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Ifeduba, A.M., W. Rooney, and M.I. Vales. 2023. Global-warming ready potatoes: Understanding the mechanisms of heat tolerance in Texas A&M varieties. Plant Breeding Circle, College Station, TX, February 10, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Gray, C. 2023. 2023 Tuber Maturity Trial Update. Colorado Potato Administrative Committee, Area II, Monte Vista, CO, December 15, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chitwood-Brown, J. 2023. 2023 Potato Breeding Activities at CSU. Northern Colorado Potato Growers Meeting, CPAC Area III. Greeley, CO, November 8, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Chitwood-Brown, J. 2023. The next chapter in breeding potatoes at CSU. Potato Association of America Annual Meeting, Charlottetown, PEI, Canada, July 26, 2023. Oral presentation.
  • Type: Conference Papers and Presentations Status: Other Year Published: 2023 Citation: Fatema, M., Nalam, V., Chikh-Ali, M., and Chitwood-Brown, J. 2023. Screening wild and commercial potato for resistance to PMTV and TRV Necrosis: Towards molecular mapping of resistance genes. Potato Association of America Annual Meeting, Charlottetown, PEI, Canada, July 25, 2023. Poster.