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2022

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Articles 61 - 76 of 76

Full-Text Articles in Plant Breeding and Genetics

Expression Of Atwri1 And Atdgat1 During Soybean Embryo Development Influences Oil And Carbohydrate Metabolism, Cintia Lucía Arias, Truyen Quach, Tu Huynh, Hanh Nguyen, Ademar Moretti, Yu Shi, Ming Guo, Amira Rasoul, Kyujung Van, Leah Mchale, Thomas E. Clemente, Ana Paula Alonso, Chi Zhang Mar 2022

Expression Of Atwri1 And Atdgat1 During Soybean Embryo Development Influences Oil And Carbohydrate Metabolism, Cintia Lucía Arias, Truyen Quach, Tu Huynh, Hanh Nguyen, Ademar Moretti, Yu Shi, Ming Guo, Amira Rasoul, Kyujung Van, Leah Mchale, Thomas E. Clemente, Ana Paula Alonso, Chi Zhang

Center for Plant Science Innovation: Faculty Publications

Soybean oil is one of the most consumed vegetable oils worldwide. Genetic improvement of its concentration in seeds has been historically pursued due to its direct association with its market value. Engineering attempts aiming to increase soybean seed oil presented different degrees of success that varied with the genetic design and the specific variety considered. Understanding the embryo’s responses to the genetic modifications introduced, is a critical step to successful approaches. In this work, the metabolic and transcriptional responses to AtWRI1 and AtDGAT1 expression in soybean seeds were evaluated. AtWRI1 is a master regulator of fatty acid (FA) biosynthesis, and …

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Non-Escaping Frost Tolerant Qtl Linked Genetic Loci At Reproductive Stage In Six Wheat Dh Populations, Jingjuan Zhang, Md Shahidul Islam, Yun Zhao, Masood Anwar, Zaid Alhabbar, Maoyun She, Rongchang Yang, Angela Juhasz, Guixiang Tang, Jiansheng Cheng, Darshan L. Sharma, Nathan Height, Ben Biddulph, Hang Liu, Yanjie Jiang, Shengnan Zhai, Xin Hu, Junkang Rong, Yingquan Zhang, Yebo Qin, Qier Liu, Zitong Yu, Yujuan Zhang, Sadegh Balotf, Mirza Dowla, Sonia Afrin, Nandita Roy, Md Resad Mallik, Md Atik Us Saieed, Shanjida Rahman, Nigarin Sultana, Sarah Al-Sheikh Ahmed, Chris Florides, Kefei Chen, Meigin Lu, Jorge E. Mayer, Wujun Ma Feb 2022

Non-Escaping Frost Tolerant Qtl Linked Genetic Loci At Reproductive Stage In Six Wheat Dh Populations, Jingjuan Zhang, Md Shahidul Islam, Yun Zhao, Masood Anwar, Zaid Alhabbar, Maoyun She, Rongchang Yang, Angela Juhasz, Guixiang Tang, Jiansheng Cheng, Darshan L. Sharma, Nathan Height, Ben Biddulph, Hang Liu, Yanjie Jiang, Shengnan Zhai, Xin Hu, Junkang Rong, Yingquan Zhang, Yebo Qin, Qier Liu, Zitong Yu, Yujuan Zhang, Sadegh Balotf, Mirza Dowla, Sonia Afrin, Nandita Roy, Md Resad Mallik, Md Atik Us Saieed, Shanjida Rahman, Nigarin Sultana, Sarah Al-Sheikh Ahmed, Chris Florides, Kefei Chen, Meigin Lu, Jorge E. Mayer, Wujun Ma

Grain and Other Field Crops Research Articles

Reproductive stage frost poses a major constraint for wheat production in countries such as Australia. However, little progress has been made in identifying key genes to overcome the constraint. In the present study, a severe frost event hit two large-scale field trials consisting of six doubled haploid (DH) wheat populations at reproductive stage (young microspore stage) in Western Australia, leading to the identification of 30 robust frost QTL on 17 chromosomes. The major 18 QTL with the phenotype variation over 9.5% were located on 13 chromosomes including 2A, 2B, 2D, 3A, 4A, 4B, 4D, 5A, 5D, 6D, 7A, 7B and …

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Arkansas Cotton Variety Test 2021, F. Bourland, A. Beach, B. Milano, C. Kennedy, L. Martin, B. Robertson Feb 2022

Arkansas Cotton Variety Test 2021, F. Bourland, A. Beach, B. Milano, C. Kennedy, L. Martin, B. Robertson

Arkansas Agricultural Experiment Station Research Series

The primary goal of the Arkansas Cotton Variety Test is to provide unbiased data regarding the agronomic performance of cotton varieties and advanced breeding lines in the major cotton-growing areas of Arkansas. This information helps seed companies establish marketing strategies and assists producers in choosing varieties to plant. These annual evaluations will then facilitate the inclusion of new, improved genetic material in Arkansas cotton production. Adaptation of varieties is determined by evaluating the lines at five University of Arkansas System Division of Agriculture research sites (Manila, Keiser, Judd Hill, Marianna, and Rohwer). The 2021 tests at Rohwer were abandoned due …

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Berry Anthocyanin, Acid, And Volatile Trait Analyses In A Grapevine-Interspecific F2 Population Using An Integrated Gbs And Rhampseq Genetic Map, Dilmini Alahakoon, Anne Fennell, Zachary Helget, Terry Bates, Avainash Karn, David Manns, Anna Katherine Mansfield, Bruce I. Reisch, Gavin Sacks, Qi Sun, Cheng Zou, Lance Cadle-Dvidson, Jason P. Londo Jan 2022

Berry Anthocyanin, Acid, And Volatile Trait Analyses In A Grapevine-Interspecific F2 Population Using An Integrated Gbs And Rhampseq Genetic Map, Dilmini Alahakoon, Anne Fennell, Zachary Helget, Terry Bates, Avainash Karn, David Manns, Anna Katherine Mansfield, Bruce I. Reisch, Gavin Sacks, Qi Sun, Cheng Zou, Lance Cadle-Dvidson, Jason P. Londo

Agronomy, Horticulture and Plant Science Faculty Publications

Increased map density and transferability of markers are essential for the genetic analysis of fruit quality and stress tolerance in interspecific grapevine populations. We used 1449 GBS and 2000 rhAmpSeq markers to develop a dense map for an interspecific F2 population (VRS-F2) that was derived by selfing a single F1 from a Vitis riparia x ‘Seyval blanc’ cross. The resultant map contained 2519 markers spanning 1131.3 cM and was highly collinear with the Vitis vinifera ‘PN40024’ genome. Quantitative trait loci (QTL) for berry skin color and flower type were used to validate the map. Four rhAmpSeq …

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Fddm1 And Fddm2, Two Sgs3-Like Proteins, Function As A Complex To Affect Dna Methylation In Arabidopsis, Shengjun Li, Weilong Yang, Yunfeng Liu, Guangyong Li, Xiang Liu, Yaling Liu, James R. Alfano, Chi Zhang, Bin Yu Jan 2022

Fddm1 And Fddm2, Two Sgs3-Like Proteins, Function As A Complex To Affect Dna Methylation In Arabidopsis, Shengjun Li, Weilong Yang, Yunfeng Liu, Guangyong Li, Xiang Liu, Yaling Liu, James R. Alfano, Chi Zhang, Bin Yu

Center for Plant Science Innovation: Faculty Publications

DNA methylation is an important epigenetic modification required for the specific regulation of gene expression and the maintenance of genome stability in plants and animals. However, the mechanism of DNA demethylation remains largely unknown. Here, we show that two SGS3-like proteins, FACTOR OF DNA DEMETHYLATION 1 (FDDM1) and FDDM2, negatively affect the DNA methylation levels at ROS1-dependend DNA loci in Arabidopsis. FDDM1 binds dsRNAs with 50 overhangs through its XS (rice gene X and SGS3) domain and forms a heterodimer with FDDM2 through its XH (rice gene X Homology) domain. A lack of FDDM1 or FDDM2 increased DNA methylation levels …

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Qteller: A Tool For Comparative Multi-Genomic Gene Expression Analysis, Margaret R. Woodhouse, Shatabdi Sen, David Schott, John L. Portwood Ii, Michael Freeling, Justin W. Walley, Carson M. Andorf, James Schnable Jan 2022

Qteller: A Tool For Comparative Multi-Genomic Gene Expression Analysis, Margaret R. Woodhouse, Shatabdi Sen, David Schott, John L. Portwood Ii, Michael Freeling, Justin W. Walley, Carson M. Andorf, James Schnable

Center for Plant Science Innovation: Faculty Publications

Motivation: Over the last decade, RNA-Seq whole-genome sequencing has become a widely used method for measuring and understanding transcriptome-level changes in gene expression. Since RNA-Seq is relatively inexpensive, it can be used on multiple genomes to evaluate gene expression across many different conditions, tissues and cell types. Although many tools exist to map and compare RNA-Seq at the genomics level, few web-based tools are dedicated to making data generated for individual genomic analysis accessible and reusable at a gene-level scale for comparative analysis between genes, across different genomes and meta-analyses. Results: To address this challenge, we revamped the comparative gene …

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Proceedings Of The 2022 Passion Fruit Conference: Growing The U.S. Passion Fruit Industry A Strategic Conference For: Growers, Marketers, Researchers, And Stakeholders, Eric T. Stafne Jan 2022

Proceedings Of The 2022 Passion Fruit Conference: Growing The U.S. Passion Fruit Industry A Strategic Conference For: Growers, Marketers, Researchers, And Stakeholders, Eric T. Stafne

CREC Publications

We are pleased to deliver these proceedings of the passion fruit conference that was held in Homestead, Florida on June 14 and 15, 2022. It was a culmination of a lot of hard work by many people, most of them listed in the previous page. However, it would not have been a success without the attendees who came from various parts of the country to share their experiences growing passion fruit. What follows in these proceedings are the slides of the presentations with by notes taken by attendees along with notes taken of discussion regarding the five priority topic areas: …

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Determinants Of Population Genetic Structure In Chamaecrista Fasciculata (Michx.) Greene (Fabaceae) In The Southeastern United States, Mahboubeh Hosseinalizadeh Nobarinezhad, Lisa E. Wallace Jan 2022

Determinants Of Population Genetic Structure In Chamaecrista Fasciculata (Michx.) Greene (Fabaceae) In The Southeastern United States, Mahboubeh Hosseinalizadeh Nobarinezhad, Lisa E. Wallace

Biological Sciences Faculty Publications

Chamaecrista fasciculata is a widely distributed, phenotypically variable species in the eastern U.S. Whereas studies have demonstrated genetic structure and local adaptation in northern areas of its distribution, there has been no comparison of genetic variability among populations at the southern extent where phenotypic variation is more complex. We characterized genetic variation at 14 microsatellite loci for populations in Mississippi and Alabama and compared this to variation in a phenotypic trait, leaf pubescence. Geographic distance, climatic variables, and elevation were evaluated as factors to explain the observed patterns of genetic diversity. A significant amount of variation (19%) resided among populations, …

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The Challenges Of Growing Orchids From Seeds For Conservation: An Assessment Of Asymbiotic Techniques, Devani Jolman, Martín I. Batalla, Alexis Hungerford, Pryce Norwood, Noah Tait, Lisa E. Wallace Jan 2022

The Challenges Of Growing Orchids From Seeds For Conservation: An Assessment Of Asymbiotic Techniques, Devani Jolman, Martín I. Batalla, Alexis Hungerford, Pryce Norwood, Noah Tait, Lisa E. Wallace

Biological Sciences Faculty Publications

Lewis Knudson first successfully germinated orchid seeds asymbiotically on artificial medium in 1922. While many orchid species have since been grown asymbiotically, the tremendous variation in how species respond to artificial medium and growth conditions ex situ has also become apparent in the past century. In this study, we reviewed published journal articles on asymbiotic orchid seed germination to provide a summary of techniques used and to evaluate if these differ between terrestrial and epiphytic species, to identify areas where additional research is needed, and to evaluate whether asymbiotic germination could be used more often in ex situ conservation. We …

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Development Of Genomic Resources In Vitis Riparia For Discoveries On Pre- And Post-Transcriptional Molecular Regulators Of Early Induction Into Endodormancy, Michael Robben Jan 2022

Development Of Genomic Resources In Vitis Riparia For Discoveries On Pre- And Post-Transcriptional Molecular Regulators Of Early Induction Into Endodormancy, Michael Robben

Electronic Theses and Dissertations

Grapevine is one of the most important fruit crops in the world, responsible for billions in global sales annually. The largest threat to grapevine and other crop production is global climate change resulting human activities. This brings unpredictable and drastic changes in ambient air temperatures to many climates in which grapes are grown. Lower temperatures and inclement weather are already responsible for millions in lost revenue due to tissue damage of established plants. Thus, protecting grapevine crops from weather-related damage is the biggest concern to growers aside from pathogen- and diseaserelated crop damage. The primary mechanism for winter survival in …

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Characterizing Drought Adaptations, Phenotypic Plasticity, And Fixed Gene Expression Patterns Within Quercus, James K. Rauschendorfer Jan 2022

Characterizing Drought Adaptations, Phenotypic Plasticity, And Fixed Gene Expression Patterns Within Quercus, James K. Rauschendorfer

Dissertations, Master's Theses and Master's Reports

This dissertation was written on topics related to the genus Quercus with a primary focus on Quercus ellipsoidalis (northern pin oak) and Quercus rubra (northern red oak). Within this dissertation are chapters related to the setup of experimental common gardens within the Ford and Kellogg experimental forest, a literature review describing drought adaptations of Quercus sect. Lobatae (red oak group), identification of transcription factors within the Q. robur (English oak) and Q. rubra genomes, a study comparing leaf trait phenotypic plasticity of Q. ellipsoidalis and Q. rubra, and an RNA-seq experiment studying ecological speciation between Q. ellipsoidalis and Q. …

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Getting To The Root Cause: The Genetic Underpinnings Of Root System Architecture And Rhizodeposition In Sorghum, Farren Smith Jan 2022

Getting To The Root Cause: The Genetic Underpinnings Of Root System Architecture And Rhizodeposition In Sorghum, Farren Smith

Graduate Theses, Dissertations, and Problem Reports (ETD)

Plants are some of the most diverse organisms on earth, consisting of more than 350,000 different species. To understand the underlying processes that contributed to plant diversification, it is fundamental to identify the genetic and genomic components that facilitated various adaptations over evolutionary history. Most studies to date have focused on the underlying controls of above-ground traits such as grain and vegetation; however, little is known about the “hidden half” of plants. Root systems comprise half of the total plant structure and provide vital functions such as anchorage, resource acquisition, and storage of energy reserves. The execution of these key …

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An Evaluation Of Eragrostis Tef For Future Cultivar Development, Eric Wayne Luteyn Jan 2022

An Evaluation Of Eragrostis Tef For Future Cultivar Development, Eric Wayne Luteyn

Theses and Dissertations--Plant and Soil Sciences

The many benefits of utilizing teff (Eragrostis tef) as small grain is well documented in journal publications. Over time the domestication of this species has become essential to the diets of the local population and the livestock living in the African highlands. Current research points to a high diversity of trait characteristics found in many teff populations and the potential utilization of these traits to increase desirable characteristics in both grain and forage varieties. With the overarching goal of adding to what is already known about teff, this study evaluates the different traits that are of interest to …

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Genomic Analysis Of Pollen Grains For Forensic Applications, Luz Kelley Jan 2022

Genomic Analysis Of Pollen Grains For Forensic Applications, Luz Kelley

Electronic Theses and Dissertations, 2020-2023

With over 300,000 plant species on the planet and more than 90% of them relying on pollen for reproduction, palynology, the study of pollen grains plays a vital role in many research fields. One of them is forensic palynology, which uses pollen as a proxy to link individuals or objects to a location or instance. It relies on the fact that (1) pollen is an ever-present feature of the environment; (2) different locations have different pollen signatures, allowing for inference related to spatial tracking; (3) plants bloom at different times, allowing for temporal inference; and (4) pollen is exceptionally durable …

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Keeping What You Sow: Intellectual Property Rights For Plant Breeders And Seed Growers, Paulina B. Jenney Jan 2022

Keeping What You Sow: Intellectual Property Rights For Plant Breeders And Seed Growers, Paulina B. Jenney

Graduate Student Theses, Dissertations, & Professional Papers

Over the last 150 years, the food system in the present-day United States has undergone a transformational restructuring, from a diversified, decentralized, network of farmers and seed growers, to one in which the majority of crop production is controlled by a few industrial corporations. The consolidation of power has been under-girded by the application of intellectual property rights (IPR)—especially utility patents—to plant varieties and genetic traits, which are leveraged to exclude small-scale seed growers from accessing quality germplasm. Patents and restrictive licensing agreements recapitulate colonial structures by appropriating common and traditionally community-held resources for profit, and by creating reliance on …

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Genome-Wide Association Mapping And Genomic Prediction For Enhancing Fhb Resistance In Hard Winter Wheat, Jinfeng Zhang Jan 2022

Genome-Wide Association Mapping And Genomic Prediction For Enhancing Fhb Resistance In Hard Winter Wheat, Jinfeng Zhang

Electronic Theses and Dissertations

Wheat is one of the most important staple crops providing 20% of energy for 35% of the world population. Fusarium head blight (FHB), primarily caused by the fugal Fusarium graminearum Schwabe, is a damaging disease in wheat that affects global wheat production every year and causes food safety issues. The disease not only reduces the grain yield and quality but also produces mycotoxin in the diseased kernels making them unsuitable for human consumption or as livestock feeds. Breeding FHB resistant cultivar is the most effective and economical approach to managing the disease. This study combines genome-wide association study (GWAS) and …

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