The Experts below are selected from a list of 3522 Experts worldwide ranked by ideXlab platform
Benjamin F. Matthews - One of the best experts on this subject based on the ideXlab platform.
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regulatory interplay between Soybean root and Soybean Cyst Nematode during a resistant and susceptible reaction
BMC Plant Biology, 2014Co-Authors: Parsa Hosseini, Benjamin F. MatthewsAbstract:Background Plant–parasitic Nematodes (PPNs) are obligate parasites that feed on the roots of living host plants. Often, these Nematodes can lay hundreds of eggs, each capable of surviving without a host for as long as 12 years. When it comes to wreaking havoc on agricultural yield, few Nematodes can compare to the Soybean Cyst Nematode (SCN). Quantifying Soybean (Glycine max) transcription factor binding sites (TFBSs) during a late–stage SCN resistant and susceptible reaction can shed light onto the systematic interplay between host and pathogen, thereby elucidating underlying cis–regulatory mechanisms.
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Emerging approaches to broaden resistance of Soybean to Soybean Cyst Nematode as supported by gene expression studies.
Plant Physiology, 2009Co-Authors: Vincent P. Klink, Benjamin F. MatthewsAbstract:The major pest of Soybean ( Glycine max ) is the Soybean Cyst Nematode (SCN), Heterodera glycines . One population of SCN can evoke a resistant response while a second population can evoke a susceptible response from the same Soybean cultivar. Recently, interactions between SCN and Soybean roots
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Analysis of expressed sequence tags from roots of resistant Soybean infected by the Soybean Cyst Nematode
Genome, 2004Co-Authors: Nadim W. Alkharouf, Rana Khan, Benjamin F. MatthewsAbstract:The Soybean Cyst Nematode (SCN) Heterodera glycines is the most devastating pest of Soybean in the U.S.A. The resistance response elicited by SCN in Soybean is complex, and genes involved in the response to a large extent are unknown and not well characterized. We constructed cDNA libraries made from mRNA extracted from roots of the resistant Soybean Glycine max L. Merr. 'Peking' at 12 h, 2 to 4 days, and 6 to 8 days post inoculation with the Soybean Cyst Nematode, population NL1-RHp, similar to race 3. Expressed sequence tag analysis of the libraries provides rapid discovery of genes involved in the response of Soybean to the Nematode. A total of 3454 cDNA clones were examined from the three libraries, of which 25 cDNAs were derived from Nematode RNA. The levels of certain stress-induced genes such as SAM22 and glutathione S-transferase (GST8) were elevated in the SCN-infected roots relative to uninoculated roots. Early defense response genes, particularly ascorbate peroxidase and lipoxygenase, were abun...
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Functional genomics of the Soybean-Cyst Nematode interaction
2004Co-Authors: Nadim W. Alkharouf, Benjamin F. MatthewsAbstract:The Soybean Cyst Nematode (SCN; Heterodera glycines Ichinohe) is the major pest of Soybean and is responsible for an estimated loss of over one billion dollars per annum in the United States. The genome of Soybean is not completely sequenced and few functional genomic studies have been conducted on the Soybean Cyst Nematode interaction. We apply bioinformatics and data mining tools to analyze DNA microarray data and Soybean ESTs to find genes and pathways involved in the resistance of Soybean to SCN. We found a number of candidate resistant genes, and found the salicylic acid induced pathway to interact with the jasmonic acid and other pathways to infer resistance in Soybean against SCN. The world's first public Soybean microarray database was constructed to store microarray data and Soybean ESTs. Analysis tools were integrated into this database for faster analysis of DNA microarray experiments. Obnlbine abnalytical pbrocessing (OLAP) was used to mine the microarray experiments and was found to be an efficient and fast method to mine gene expression data.
Esmaeil Miraeiz - One of the best experts on this subject based on the ideXlab platform.
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Early transcriptional responses to Soybean Cyst Nematode HG Type 0 show genetic differences among resistant and susceptible Soybeans
Theoretical and Applied Genetics, 2020Co-Authors: Esmaeil Miraeiz, Usawadee Chaiprom, Alireza Afsharifar, Akbar Karegar, Jenny Drnevich, Matthew HudsonAbstract:Key message Root transcriptome profiling of three Soybean cultivars and a wild relative infected with Soybean Cyst Nematode at migratory phase revealed differential resistance pathway responses between resistant and susceptible genotypes. Abstract The Soybean Cyst Nematode (SCN), Heterodera glycines , is the most serious pathogen of Soybean production throughout the world. Using resistant cultivars is the primary management strategy against SCN infestation. To gain insight into the still obscure mechanisms of genetic resistance to Nematodes in different Soybean genotypes, RNA-Seq profiling of the roots of Glycine max cv. Peking, Fayette, Williams 82, and a wild relative ( Glycine soja PI 468916) was performed during SCN infection at the migratory phase. The analysis showed statistically significant changes of expression beginning at eight hours after inoculation in genes associated with defense mechanisms and pathways, such as the phenylpropanoid biosynthesis pathway, plant innate immunity and hormone signaling. Our results indicate the importance of the early plant response to migratory phase Nematodes in pathogenicity determination. The transcriptome changes occurring during early SCN infection included a number of genes and pathways specific to the different resistant genotypes. We observed the most extensive resistant transcriptome reaction in PI 468916, where the resistant response was qualitatively different from that of commonly used G. max varieties.
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early transcriptional responses to Soybean Cyst Nematode hg type 0 show genetic differences among resistant and susceptible Soybeans
Theoretical and Applied Genetics, 2020Co-Authors: Esmaeil Miraeiz, Usawadee Chaiprom, Alireza Afsharifar, Akbar Karegar, Jenny Drnevich, Matthew E HudsonAbstract:Root transcriptome profiling of three Soybean cultivars and a wild relative infected with Soybean Cyst Nematode at migratory phase revealed differential resistance pathway responses between resistant and susceptible genotypes. The Soybean Cyst Nematode (SCN), Heterodera glycines, is the most serious pathogen of Soybean production throughout the world. Using resistant cultivars is the primary management strategy against SCN infestation. To gain insight into the still obscure mechanisms of genetic resistance to Nematodes in different Soybean genotypes, RNA-Seq profiling of the roots of Glycine max cv. Peking, Fayette, Williams 82, and a wild relative (Glycine soja PI 468916) was performed during SCN infection at the migratory phase. The analysis showed statistically significant changes of expression beginning at eight hours after inoculation in genes associated with defense mechanisms and pathways, such as the phenylpropanoid biosynthesis pathway, plant innate immunity and hormone signaling. Our results indicate the importance of the early plant response to migratory phase Nematodes in pathogenicity determination. The transcriptome changes occurring during early SCN infection included a number of genes and pathways specific to the different resistant genotypes. We observed the most extensive resistant transcriptome reaction in PI 468916, where the resistant response was qualitatively different from that of commonly used G. max varieties.
Gregory L. Tylka - One of the best experts on this subject based on the ideXlab platform.
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Understanding Soybean Cyst Nematode HG Types and Races
Plant Health Progress, 2016Co-Authors: Gregory L. TylkaAbstract:Confusion still exists about the concept of Soybean Cyst Nematode (SCN), Heterodera glycines, race and HG type. Questions from researchers and agribusiness and extension professionals who advise farmers include: When will there be a molecular test for HG type (or SCN race)? How many HG types (or races) are there in a field? Do seed treatments work against all HG types (or races)? These seemingly logical questions of practical significance are unanswerable if one understands the concept of HG type and SCN race. This article draws a comparison between the current SCN HG type test and a hypothetical test for human food sensitivities that may provide a new perspective and make HG types more easily understood and used. Accepted for publication 25 May 2016. Published 20 June 2016.
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Distribution of the Soybean Cyst Nematode, Heterodera glycines, in the United States and Canada: 1954 to 2014
Plant Health Progress, 2014Co-Authors: Gregory L. Tylka, Christopher C. MarettAbstract:The Soybean Cyst Nematode (Heterodera glycines) is considered the most damaging pathogen of Soybean in the USA and Canada, and causes considerable yield loss in many other Soybean-producing countries. It is believed to have been introduced into North America from Asia. The map of the known distribution of H. glycines in the USA and Canada has been updated for 2014. Maps of its known distribution in past years illustrate the spread of the pathogen since its initial discovery in the United States in 1954.
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Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode
2013Co-Authors: Gregory L. Tylka, Gregory D. Gebhart, Christopher C. MarettAbstract:Introduction 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 growers. Each year, public and private SCN-resistant Soybean varieties are evaluated in SCN-infested fields in Iowa by Iowa State University personnel. The research described in this report was performed to assess the agronomic performance of SCNresistant Soybean varieties and to determine the effects of the varieties on SCN numbers or population densities.
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Evaluation of Soybean Varieties Resistant to Soybean Cyst Nematode
2011Co-Authors: Gregory L. Tylka, Gregory D. Gebhart, Christopher C. MarettAbstract:Introduction 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 growers. Each year, public and private SCN-resistant Soybean varieties are evaluated in SCN-infested fields in Iowa by Iowa State University personnel. The research described in this report was performed to assess the agronomic performance of SCNresistant Soybean varieties and to determine the effects of the varieties on SCN numbers or population densities.
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a standard greenhouse method for assessing Soybean Cyst Nematode resistance in Soybean sce08 standardized Cyst evaluation 2008
Plant Health Progress, 2009Co-Authors: T L Niblack, Gregory L. Tylka, J. Faghihi, V. R. Ferris, Prakash R Arelli, Jason P Bond, Brian W Diers, Pat Donald, Karen M Gallo, Robert HeinzAbstract:The tactic of choice for managing Soybean Cyst Nematode (SCN) in infested fields is the use of resistant cultivars. Because expression of SCN resistance is dependent on the occurrence and frequencies of genes for virulence in SCN populations, labeling of SCN-resistant cultivars can be difficult and, occasionally, highly misleading, leading to unanticipated yield losses. The authors' objective was to offer a set of standards for assessing and labeling SCN-resistant cultivars that would allow farmers to make direct comparisons of cultivars. Accepted for publication 15 March 2009. Published 13 May 2009.
Matthew E Hudson - One of the best experts on this subject based on the ideXlab platform.
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early transcriptional responses to Soybean Cyst Nematode hg type 0 show genetic differences among resistant and susceptible Soybeans
Theoretical and Applied Genetics, 2020Co-Authors: Esmaeil Miraeiz, Usawadee Chaiprom, Alireza Afsharifar, Akbar Karegar, Jenny Drnevich, Matthew E HudsonAbstract:Root transcriptome profiling of three Soybean cultivars and a wild relative infected with Soybean Cyst Nematode at migratory phase revealed differential resistance pathway responses between resistant and susceptible genotypes. The Soybean Cyst Nematode (SCN), Heterodera glycines, is the most serious pathogen of Soybean production throughout the world. Using resistant cultivars is the primary management strategy against SCN infestation. To gain insight into the still obscure mechanisms of genetic resistance to Nematodes in different Soybean genotypes, RNA-Seq profiling of the roots of Glycine max cv. Peking, Fayette, Williams 82, and a wild relative (Glycine soja PI 468916) was performed during SCN infection at the migratory phase. The analysis showed statistically significant changes of expression beginning at eight hours after inoculation in genes associated with defense mechanisms and pathways, such as the phenylpropanoid biosynthesis pathway, plant innate immunity and hormone signaling. Our results indicate the importance of the early plant response to migratory phase Nematodes in pathogenicity determination. The transcriptome changes occurring during early SCN infection included a number of genes and pathways specific to the different resistant genotypes. We observed the most extensive resistant transcriptome reaction in PI 468916, where the resistant response was qualitatively different from that of commonly used G. max varieties.
Matthew Hudson - One of the best experts on this subject based on the ideXlab platform.
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Early transcriptional responses to Soybean Cyst Nematode HG Type 0 show genetic differences among resistant and susceptible Soybeans
Theoretical and Applied Genetics, 2020Co-Authors: Esmaeil Miraeiz, Usawadee Chaiprom, Alireza Afsharifar, Akbar Karegar, Jenny Drnevich, Matthew HudsonAbstract:Key message Root transcriptome profiling of three Soybean cultivars and a wild relative infected with Soybean Cyst Nematode at migratory phase revealed differential resistance pathway responses between resistant and susceptible genotypes. Abstract The Soybean Cyst Nematode (SCN), Heterodera glycines , is the most serious pathogen of Soybean production throughout the world. Using resistant cultivars is the primary management strategy against SCN infestation. To gain insight into the still obscure mechanisms of genetic resistance to Nematodes in different Soybean genotypes, RNA-Seq profiling of the roots of Glycine max cv. Peking, Fayette, Williams 82, and a wild relative ( Glycine soja PI 468916) was performed during SCN infection at the migratory phase. The analysis showed statistically significant changes of expression beginning at eight hours after inoculation in genes associated with defense mechanisms and pathways, such as the phenylpropanoid biosynthesis pathway, plant innate immunity and hormone signaling. Our results indicate the importance of the early plant response to migratory phase Nematodes in pathogenicity determination. The transcriptome changes occurring during early SCN infection included a number of genes and pathways specific to the different resistant genotypes. We observed the most extensive resistant transcriptome reaction in PI 468916, where the resistant response was qualitatively different from that of commonly used G. max varieties.