Open Access. Powered by Scholars. Published by Universities.®

Plant Breeding and Genetics Commons

Open Access. Powered by Scholars. Published by Universities.®

1666 Full-Text Articles 3061 Authors 186691 Downloads 55 Institutions

All Articles in Plant Breeding and Genetics

Faceted Search

1666 full-text articles. Page 1 of 23.

Towards The Development Of A Sustainable Soya Bean-Based Feedstock For Aquaculture, Hyunwoo Park, Steven Weier, Fareha Razvi, Pamela A. Peña, Neil A. Sims, Jennica Lowell, Cory Hungate, Karma Kissinger, Gavin Key, Paul Fraser, Jonathan Napier, Edgar B. Cahoon, Thomas Clemente 2017 University of Nebraska-Lincoln

Towards The Development Of A Sustainable Soya Bean-Based Feedstock For Aquaculture, Hyunwoo Park, Steven Weier, Fareha Razvi, Pamela A. Peña, Neil A. Sims, Jennica Lowell, Cory Hungate, Karma Kissinger, Gavin Key, Paul Fraser, Jonathan Napier, Edgar B. Cahoon, Thomas Clemente

Faculty Publications from the Center for Plant Science Innovation

Soya bean (Glycine max (L.) Merr.) is sought after for both its oil and protein components. Genetic approaches to add value to either component are ongoing efforts in soya bean breeding and molecular biology programmes. The former is the primary vegetable oil consumed in the world. Hence, its primary usage is in direct human consumption. As a means to increase its utility in feed applications, thereby expanding the market of soya bean coproducts, we investigated the simultaneous displacement of marine ingredients in aquafeeds with soya bean-based protein and a high Omega-3 fatty acid soya bean oil, enriched with alpha-linolenic and ...


Qqs Orphan Gene Regulates Carbon And Nitrogen Partitioning Across Species Via Nf-Yc Interactions, Ling Li, Wenguang Zheng, Yanbing Zhu, Huaxun Ye, Buyun Tang, Zebulun W. Arendsee, Dallas Jones, Ruoran Li, Diego Ortiz, Xuefeng Zhao, Chuanlong Du, Dan Nettleton, M. Paul Scott, Maria G. Salas-Fernandez, Yanhai Yin, Eve S. Wurtele 2017 Iowa State University

Qqs Orphan Gene Regulates Carbon And Nitrogen Partitioning Across Species Via Nf-Yc Interactions, Ling Li, Wenguang Zheng, Yanbing Zhu, Huaxun Ye, Buyun Tang, Zebulun W. Arendsee, Dallas Jones, Ruoran Li, Diego Ortiz, Xuefeng Zhao, Chuanlong Du, Dan Nettleton, M. Paul Scott, Maria G. Salas-Fernandez, Yanhai Yin, Eve S. Wurtele

Eve Wurtele

The allocation of carbon and nitrogen resources to the synthesis of plant proteins, carbohydrates, and lipids is complex and under the control of many genes; much remains to be understood about this process. QQS (Qua-Quine Starch; At3g30720), an orphan gene unique to Arabidopsis thaliana, regulates metabolic processes affecting carbon and nitrogen partitioning among proteins and carbohydrates, modulating leaf and seed composition in Arabidopsis and soybean. Here the universality of QQS function in modulating carbon and nitrogen allocation is exemplified by a series of transgenic experiments. We show that ectopic expression of QQS increases soybean protein independent of the genetic background ...


Cognition-Mediated Evolution Of Low-Quality Floral Nectars, Vladislav Nachev, Kai Petra Stich, Clemens Winter, Alan B. Bond, Alan Kamil, York Winter 2017 Humboldt University, Berlin

Cognition-Mediated Evolution Of Low-Quality Floral Nectars, Vladislav Nachev, Kai Petra Stich, Clemens Winter, Alan B. Bond, Alan Kamil, York Winter

Alan Bond Publications

Plants pollinated by hummingbirds or bats produce dilute nectars even though these animals prefer more concentrated sugar solutions. This mismatch is an unsolved evolutionary paradox. Here we show that lower quality, or more dilute, nectars evolve when the strength of preferring larger quantities or higher qualities of nectar diminishes as magnitudes of the physical stimuli increase. In a virtual evolution experiment conducted in the tropical rainforest, bats visited computer-automated flowers with simulated genomes that evolved relatively dilute nectars. Simulations replicated this evolution only when value functions, which relate the physical stimuli to subjective sensations, were nonlinear. Selection also depended on ...


Expression Of Apoplast-Targeted Plant Defensin Mtdef4.2 Confers Resistance To Leaf Rust Pathogen Puccinia Triticina But Does Not Affect Mycorrhizal Symbiosis In Transgenic Wheat, Jagdeep Kaur, John Fellers, Alok Adholeya, Siva L.S. Velivelli, Kaoutar El-Mounadi, Natalya Nersesian, Thomas E. Clemente, Dilip Shah 2017 Donald Danforth Plant Science Center

Expression Of Apoplast-Targeted Plant Defensin Mtdef4.2 Confers Resistance To Leaf Rust Pathogen Puccinia Triticina But Does Not Affect Mycorrhizal Symbiosis In Transgenic Wheat, Jagdeep Kaur, John Fellers, Alok Adholeya, Siva L.S. Velivelli, Kaoutar El-Mounadi, Natalya Nersesian, Thomas E. Clemente, Dilip Shah

Faculty Publications from the Center for Plant Science Innovation

Rust fungi of the order Pucciniales are destructive pathogens of wheat worldwide. Leaf rust caused by the obligate, biotrophic basidiomycete fungus Puccinia triticina (Pt) is an economically important disease capable of causing up to 50 % yield losses. Historically, resistant wheat cultivars have been used to control leaf rust, but genetic resistance is ephemeral and breaks down with the emergence of new virulent Pt races. There is a need to develop alternative measures for control of leaf rust in wheat. Development of transgenic wheat expressing an antifungal defensin offers a promising approach to complement the endogenous resistance genes within the wheat ...


American Chestnut Sem Portfolio, Dakota Matthews 2016 SUNY College of Environmental Science and Forestry

American Chestnut Sem Portfolio, Dakota Matthews

N.C. Brown Center for Ultrastructure Studies

Scanning electron microscopy micrographs of transgenic american chestnut pollen and anthers. Chinkapin anthers and pollen imaged also.


Impact Of Climate Change On Soybean Breeding Objectives, Theodore M. I. Hartman 2016 Iowa State University

Impact Of Climate Change On Soybean Breeding Objectives, Theodore M. I. Hartman

Meteorology Senior Theses

Changes in climate, mainly changes in temperature, precipitation, and carbon dioxide concentration are predicted to occur. These changes in climate will affect weather conditions that are vitally important in the growth and development of crops. Historically, yield increases have been observed in many crops, including Glycine max (soybean). This yield increase has been associated with deliberate breeding objectives designed to optimize plant performance for the contemporary climate. This deliberate breeding initiative has modified plant physiologic parameters. This study looks at how changes in soybean physiological parameters, through different cultivars, have attributed to observed yield increases and how future climate changes ...


Evaluation Of Soybean Varieties Resistant To Soybean Cyst Nematode In Iowa—2016, Gregory L. Tylka, Gregory D. Gebhart, Christopher C. Marett, Mark P. Mullaney 2016 Iowa State University

Evaluation Of Soybean Varieties Resistant To Soybean Cyst Nematode In Iowa—2016, Gregory L. Tylka, Gregory D. Gebhart, Christopher C. Marett, Mark P. Mullaney

Extension and Outreach Publications

Use of resistant soybean varieties is a very effective strategy for managing soybean cyst nematode (SCN), and numerous SCN-resistant soybean varieties are available for Iowa soybean farmers. Each year, SCNresistant soybean varieties are evaluated in SCN-infested fields throughout Iowa by Iowa State University personnel. The research described in this report was performed to assess the agronomic performance of maturity group (MG) I, II, and III SCN-resistant soybean varieties and to determine the effects of the varieties on SCN numbers or population densities.


Resistant Starch: Promise For Improving Human Health, Diane F. Birt, Terri D. Boylston, Suzanne Hendrich, Jay-Lin Jane, James Hollis, Li Li, John F. McClelland, Samuel Moore, Gregory J. Phillips, Matthew James Rowling, Kevin Schalinske, Marvin Paul Scott, Elizabeth M. Whitley 2016 Iowa State University

Resistant Starch: Promise For Improving Human Health, Diane F. Birt, Terri D. Boylston, Suzanne Hendrich, Jay-Lin Jane, James Hollis, Li Li, John F. Mcclelland, Samuel Moore, Gregory J. Phillips, Matthew James Rowling, Kevin Schalinske, Marvin Paul Scott, Elizabeth M. Whitley

Kevin Schalinske

Ongoing research to develop digestion-resistant starch for human health promotion integrates the disciplines of starch chemistry, agronomy, analytical chemistry, food science, nutrition, pathology, and microbiology. The objectives of this research include identifying components of starch structure that confer digestion resistance, developing novel plants and starches, and modifying foods to incorporate these starches. Furthermore, recent and ongoing studies address the impact of digestion-resistant starches on the prevention and control of chronic human diseases, including diabetes, colon cancer, and obesity. This review provides a transdisciplinary overview of this field, including a description of types of resistant starches; factors in plants that affect ...


Mapping Of Iron And Zinc Quantitative Trait Loci In Soybean For Association To Iron Deficiency Chlorosis Resistance, Keith E. King, Gregory A. Peiffer, Manju B. Reddy, Nick Lauter, Shun Fu Lin, Silvia R. Cianzio, Randy C. Shoemaker 2016 Iowa State University

Mapping Of Iron And Zinc Quantitative Trait Loci In Soybean For Association To Iron Deficiency Chlorosis Resistance, Keith E. King, Gregory A. Peiffer, Manju B. Reddy, Nick Lauter, Shun Fu Lin, Silvia R. Cianzio, Randy C. Shoemaker

Manju B. Reddy

Iron deficiency chlorosis (IDC) in soybean results in yield losses or in extreme cases death. Breeding for resistance has shown limited success with no cultivar having complete resistance. Mineral content of the soybean could be an indicator of the ability of the plant to withstand the effects of IDC. Iron (Fe) and zinc (Zn) concentration was examined in soybean seed and leaves. SSR, RFLP, and BARCSOYSSR markers were used to construct a linkage map used for mapping of Fe and Zn concentrations. The QTL analysis for the combined data identified one major QTL for seed Fe accumulation on chromosome 20 ...


Oxalate And Phytate Of Soy Foods, Ismail A. Al-Wahsh, Harry T. Horner, Reid G. Palmer, Manju B. Reddy, Linda K. Massey 2016 Washington State University

Oxalate And Phytate Of Soy Foods, Ismail A. Al-Wahsh, Harry T. Horner, Reid G. Palmer, Manju B. Reddy, Linda K. Massey

Manju B. Reddy

The consumption of foods made from soybeans is increasing because of their desirable nutritional value. However, some soy foods contain high concentrations of oxalate and/or phytate. Oxalate is a component of calcium oxalate kidney stones, whereas phytate is an inhibitor of calcium kidney stone formation. Thirty tested commercial soy foods exhibited ranges of 0.02−2.06 mg oxalate/g and 0.80−18.79 mg phytate/g. Commercial soy foods contained 2−58 mg of total oxalate per serving and 76−528 mg phytate per serving. Eighteen of 19 tofu brands and two soymilk brands contained less than ...


Iron Bioavailability Of Hemoglobin From Soy Root Nodules Using A Caco-2 Cell Culture Model, Amy K. Proulx, Manju B. Reddy 2016 Iowa State University

Iron Bioavailability Of Hemoglobin From Soy Root Nodules Using A Caco-2 Cell Culture Model, Amy K. Proulx, Manju B. Reddy

Manju B. Reddy

Heme iron has been identified in many plant sourcesmost commonly in the root nodules of leguminous plants, such as soy. Our objective was to test the effectiveness of soy root nodule (SRN) and purified soy hemoglobin (LHb) in improving iron bioavailability using an in vitro Caco-2 cell model, with ferritin response as the bioavailability index. We assessed bioavailability of iron from LHb (either partially purified (LHbA) or purified (LHbD)) with and without food matrix and compared it with that from bovine hemoglobin (BHb), ferrous sulfate (FeSO4), or SRN. Bioavailability of each treatment was normalized to 100% of the FeSO4 treatment ...


Fermentation And Lactic Acid Addition Enhance Iron Bioavailability Of Maize, Amy K. Proulx, Manju B. Reddy 2016 Iowa State University

Fermentation And Lactic Acid Addition Enhance Iron Bioavailability Of Maize, Amy K. Proulx, Manju B. Reddy

Manju B. Reddy

Maize is one of the most important cereal crops for human consumption, yet it is of concern due to its low iron bioavailability. The objective of this study was to determine the effects of processing on iron bioavailability in common maize products and elucidate better processing techniques for enhancing iron bioavailability. Maize products were processed to represent different processing techniques: heating (porridge), fermentation (ogi), nixtamalization (tortillas), and decortication (arepas). Iron and phytate contents were evaluated. Iron bioavailability was assessed using the Caco-2 cell model. Phytate content of maize products was significantly reduced by decortication (25.6%, p ) 0.003) and ...


Resistant Starch: Promise For Improving Human Health, Diane F. Birt, Terri D. Boylston, Suzanne Hendrich, Jay-Lin Jane, James Hollis, Li Li, John F. McClelland, Samuel Moore, Gregory J. Phillips, Matthew James Rowling, Kevin Schalinske, Marvin Paul Scott, Elizabeth M. Whitley 2016 Iowa State University

Resistant Starch: Promise For Improving Human Health, Diane F. Birt, Terri D. Boylston, Suzanne Hendrich, Jay-Lin Jane, James Hollis, Li Li, John F. Mcclelland, Samuel Moore, Gregory J. Phillips, Matthew James Rowling, Kevin Schalinske, Marvin Paul Scott, Elizabeth M. Whitley

Suzanne Hendrich

Ongoing research to develop digestion-resistant starch for human health promotion integrates the disciplines of starch chemistry, agronomy, analytical chemistry, food science, nutrition, pathology, and microbiology. The objectives of this research include identifying components of starch structure that confer digestion resistance, developing novel plants and starches, and modifying foods to incorporate these starches. Furthermore, recent and ongoing studies address the impact of digestion-resistant starches on the prevention and control of chronic human diseases, including diabetes, colon cancer, and obesity. This review provides a transdisciplinary overview of this field, including a description of types of resistant starches; factors in plants that affect ...


Resistant Starch: Promise For Improving Human Health, Diane F. Birt, Terri D. Boylston, Suzanne Hendrich, Jay-Lin Jane, James Hollis, Li Li, John F. McClelland, Samuel Moore, Gregory J. Phillips, Matthew James Rowling, Kevin Schalinske, Marvin Paul Scott, Elizabeth M. Whitley 2016 Iowa State University

Resistant Starch: Promise For Improving Human Health, Diane F. Birt, Terri D. Boylston, Suzanne Hendrich, Jay-Lin Jane, James Hollis, Li Li, John F. Mcclelland, Samuel Moore, Gregory J. Phillips, Matthew James Rowling, Kevin Schalinske, Marvin Paul Scott, Elizabeth M. Whitley

Diane F. Birt

Ongoing research to develop digestion-resistant starch for human health promotion integrates the disciplines of starch chemistry, agronomy, analytical chemistry, food science, nutrition, pathology, and microbiology. The objectives of this research include identifying components of starch structure that confer digestion resistance, developing novel plants and starches, and modifying foods to incorporate these starches. Furthermore, recent and ongoing studies address the impact of digestion-resistant starches on the prevention and control of chronic human diseases, including diabetes, colon cancer, and obesity. This review provides a transdisciplinary overview of this field, including a description of types of resistant starches; factors in plants that affect ...


Orm Expression Alters Sphingolipid Homeostasis And Differentially Affects Ceramide Synthase Activity, Athen N. Kimberlin, Gongshe Han, Kyle D. Luttgeharm, Ming Chen, Rebecca E. Cahoon, Julie M. Stone, Jonathan E. Markham, Teresa M. Dunn, Edgar B. Cahoon 2016 University of Nebraska - Lincoln

Orm Expression Alters Sphingolipid Homeostasis And Differentially Affects Ceramide Synthase Activity, Athen N. Kimberlin, Gongshe Han, Kyle D. Luttgeharm, Ming Chen, Rebecca E. Cahoon, Julie M. Stone, Jonathan E. Markham, Teresa M. Dunn, Edgar B. Cahoon

Faculty Publications from the Center for Plant Science Innovation

Sphingolipid synthesis is tightly regulated in eukaryotes. This regulation in plants ensures sufficient sphingolipids to support growth while limiting the accumulation of sphingolipid metabolites that induce programmed cell death. Serine palmitoyltransferase (SPT) catalyzes the first step in sphingolipid biosynthesis and is considered the primary sphingolipid homeostatic regulatory point. In this report, Arabidopsis (Arabidopsis thaliana) putative SPT regulatory proteins, orosomucoidlike proteins AtORM1 and AtORM2, were found to interact physically with Arabidopsis SPT and to suppress SPT activity when coexpressed with Arabidopsis SPT subunits long-chain base1 (LCB1) and LCB2 and the small subunit of SPT in a yeast (Saccharomyces cerevisiae) SPT-deficient mutant ...


Soybean Cyst Nematode-Resistant Soybean Varieties For Iowa, Gregory L. Tylka, Mark P. Mullaney 2016 Iowa State University

Soybean Cyst Nematode-Resistant Soybean Varieties For Iowa, Gregory L. Tylka, Mark P. Mullaney

Extension and Outreach Publications

Soybean cyst nematode (SCN) is widespread in Iowa. The nematode reproduces quickly (completes several life cycles or generations per season), survives in the soil for 10 years or more in the absence of a soybean crop, and can cause substantial yield losses, particularly in dry years.


Transcriptome Response Of Cassava Leaves Under Natural Shade, Zehong Ding, Yang Zhang, Yi Xiao, Fangfang Liu, Minghui Wang, Xinguang Zhu, Peng Liu, Qi Sun, Wenquan Wang, Ming Peng, Tom Brutnell, Pinghua Li 2016 Chinese Academy of Tropical Agricultural Sciences (CATAS), Haikou, Hainan

Transcriptome Response Of Cassava Leaves Under Natural Shade, Zehong Ding, Yang Zhang, Yi Xiao, Fangfang Liu, Minghui Wang, Xinguang Zhu, Peng Liu, Qi Sun, Wenquan Wang, Ming Peng, Tom Brutnell, Pinghua Li

Faculty Publications from the Center for Plant Science Innovation

Cassava is an important staple crop in tropical and sub-tropical areas. As a common farming practice, cassava is usually cultivated intercropping with other crops and subjected to various degrees of shading, which causes reduced productivity. Herein, a comparative transcriptomic analysis was performed on a series of developmental cassava leaves under both full sunlight and natural shade conditions. Gene expression profiles of these two conditions exhibited similar developmental transitions, e.g. genes related to cell wall and basic cellular metabolism were highly expressed in immature leaves, genes involved in lipid metabolism and tetrapyrrole synthesis were highly expressed during the transition stages ...


Nanocomposite Adhesive Of English Ivy (Hedera Helix): Bioproduction, Nanoparticle Isolation, And Molecular Analysis, Jason Neil Burris 2016 University of Tennessee, Knoxville

Nanocomposite Adhesive Of English Ivy (Hedera Helix): Bioproduction, Nanoparticle Isolation, And Molecular Analysis, Jason Neil Burris

Doctoral Dissertations

English ivy naturally produces organic nanoparticles from its adventitious root hairs, and possesses characteristics that may allow them to replace metal-based nanoparticles in common applications, such as sunscreen. At the onset of the research, it was hypothesized that a physical mechanism of attachment, similar to the gecko footpad, was used to generate the adhesive force for attachment; however, through the results obtained from recent work, it is clear that a biochemical mechanism is involved in the generation of the strength of adhesion. Therefore, the goal of this research was to provide a better understanding of the genetic basis of nanoparticle ...


Comparative Evolutionary Analysis Of Organellar Genomic Diversity In Green Plants, Weishu Fan 2016 University of Nebraska - Lincoln

Comparative Evolutionary Analysis Of Organellar Genomic Diversity In Green Plants, Weishu Fan

Theses, Dissertations, and Student Research in Agronomy and Horticulture

The mitochondrial genome (mitogenome) and plastid genome (plastome) of plants vary immensely in genome size and gene content. They have also developed several eccentric features, such as the preference for horizontal gene transfer of mitochondrial genes, the reduction of the plastome in non-photosynthetic plants, and variable amounts of RNA editing affecting both genomes. Different organismal lifestyles can partially account for the highly diverse organellar genomes across the tree of green plants. For example, endosymbiotic and parasitic lifestyles can dramatically affect the genomic architectures of plant mitochondria and plastids. In this study, the organellar genomes of several green plants with atypical ...


Reducing Pollen Dispersal Using Forest Windbreaks, Carol Auer, Thomas Meyer, Vernie Sagun 2016 University of Connecticut - Storrs

Reducing Pollen Dispersal Using Forest Windbreaks, Carol Auer, Thomas Meyer, Vernie Sagun

Plant Science Articles

The adoption of genetically engineered (GE) crops has created a demand for practical methods to mitigate pollen dispersal and gene flow. The goal of this project was to measure the ability of a narrow forest windbreak to reduce downwind pollen fluxes from switchgrass (Panicum virgatum L.), a North American grass and model biofuels feedstock. Switchgrass fields were established in two identical plots where one had a forest windbreak and the other was in an open (control) site. Switchgrass reproduction, pollen dispersal, wind speed, and wind direction were measured over two years. Daily release of switchgrass pollen peaked at 11:00-13 ...


Digital Commons powered by bepress