scholarly journals Cell-Specific Studies of Soybean Resistance to Its Major Pathogen, the Soybean Cyst Nematode as Revealed by Laser Capture Microdissection, Gene Pathway Analyses and Functional Studies

10.5772/16165 ◽  
2011 ◽  
Author(s):  
Vincent P. ◽  
Prachi D. ◽  
Gary W.
Keyword(s):  
Laser Capture Microdissection ◽  
Soybean Cyst Nematode ◽  
Cyst Nematode ◽  
Gene Pathway ◽  
Functional Studies ◽  
Soybean Resistance ◽  
Pathway Analyses ◽  
Laser Capture

scholarly journals Distinct Copy Number, Coding Sequence, and Locus Methylation Patterns Underlie Rhg1-Mediated Soybean Resistance to Soybean Cyst Nematode

2014 ◽  
Vol 165 (2) ◽  
pp. 630-647 ◽  
Author(s):  
David E. Cook ◽  
Adam M. Bayless ◽  
Kai Wang ◽  
Xiaoli Guo ◽  
Qijian Song ◽  
...  
Keyword(s):  
Copy Number ◽  
Soybean Cyst Nematode ◽  
Cyst Nematode ◽  
Coding Sequence ◽  
Soybean Resistance ◽  
Methylation Patterns

scholarly journals The Soybean Resistance Gene Rag1 Does Not Protect Against Soybean Cyst and Root-knot Nematodes

2009 ◽  
Vol 10 (1) ◽  
pp. 44
Author(s):  
Matthew Studham ◽  
Gustavo C. MacIntosh ◽  
Felicitas Avendaño ◽  
David Soh ◽  
Gregory L. Tylka
Keyword(s):  
Resistance Gene ◽  
Soybean Cyst Nematode ◽  
Soybean Aphid ◽  
Cyst Nematode ◽  
Root Knot Nematodes ◽  
Rag1 Gene ◽  
Tomato Gene ◽  
Soybean Resistance

The only well-characterized gene controlling soybean aphid (SBA) resistance is Mi-1.2, a tomato gene that also confers resistance to root-knot nematodes (RKN). Based on similarities between Mi-1.2 and Rag1, which produces a strong antibiosis-type resistance, the authors hypothesized that Rag1 could also provide resistance to nematodes. They evaluated two soybean lines, one carrying the Rag1 gene, and one with no resistance gene, for susceptibility or resistance to soybean cyst nematode (SCN) and RKN. Accepted for publication 4 March 2009. Published 1 April 2009.

scholarly journals Host-Derived Artificial MicroRNA as an Alternative Method to Improve Soybean Resistance to Soybean Cyst Nematode

Genes ◽  
2016 ◽  
Vol 7 (12) ◽  
pp. 122 ◽  
Author(s):  
Bin Tian ◽  
Jiarui Li ◽  
Thomas Oakley ◽  
Timothy Todd ◽  
Harold Trick
Keyword(s):  
Soybean Cyst Nematode ◽  
Cyst Nematode ◽  
Artificial Microrna ◽  
Alternative Method ◽  
Soybean Resistance

scholarly journals iTRAQ-Based Proteomic Analysis Reveals the Role of the Biological Control Agent, Sinorhizobium fredii Strain Sneb183, in Enhancing Soybean Resistance Against the Soybean Cyst Nematode

2020 ◽  
Vol 11 ◽  
Author(s):  
Yuanyuan Wang ◽  
Ruowei Yang ◽  
Yaxing Feng ◽  
Aatika Sikandar ◽  
Xiaofeng Zhu ◽  
...  
Keyword(s):  
Biological Control ◽  
Disease Resistance ◽  
Soybean Cyst Nematode ◽  
Fermentation Broth ◽  
Cyst Nematode ◽  
Differentially Expressed ◽  
Differentially Expressed Proteins ◽  
Sinorhizobium Fredii ◽  
Soybean Resistance ◽  
Control Samples

The soybean cyst nematode (SCN), Heterodera glycines Ichinohe, poses a serious threat to soybean production worldwide. Biological control agents have become eco-friendly candidates to control pathogens. Our previous study indicated that the biocontrol agent, Sinorhizobium fredii strain Sneb183, may induce soybean resistance to SCN. To study the mechanisms underlying induced disease resistance in the plant by Sneb183, an iTRAQ (isobaric tag for relative and absolute quantitation)-based proteomics approach was used to identify proteomic changes in SCN-infected soybean roots derived from seeds coated with the Sneb183 fermentation broth or water. Among a total of 456 identified differentially expressed proteins, 212 and 244 proteins were upregulated and downregulated, respectively, in Sneb183 treated samples in comparison to control samples. Some identified differentially expressed proteins are likely to be involved in the biosynthesis of phenylpropanoid, flavone, flavanol, and isoflavonoid and have a role in disease resistance and adaptation to environmental stresses. We used quantitative real-time PCR (qRT-PCR) to analyze key genes, including GmPAL (phenylalanine ammonia-lyase), GmCHR (chalcone reductase), GmCHS (chalcone synthase), and GmIFS (isoflavone synthase), that are involved in isoflavonoid biosynthesis in Sneb183-treated and control samples. The results showed that these targeted genes have higher expression levels in Sneb183-treated than in control samples. High performance liquid chromatography (HPLC) analysis further showed that the contents of daidzein in Sneb183-treated samples were 7.24 times higher than those in control samples. These results suggested that the Sinorhizobium fredii strain Sneb183 may have a role in inducing isoflavonoid biosynthesis, thereby resulting in enhanced resistance to SCN infection in soybean.

scholarly journals Inheritance pattern and selection criteria for resistance to soybean cyst nematode races 3 and 9

2007 ◽  
Vol 42 (10) ◽  
pp. 1413-1419 ◽  
Author(s):  
Gerardo Domingo Lucio Cervigni ◽  
Ivan Schuster ◽  
Carlos Sigueyuki Sediyama ◽  
Everaldo Gonçalves de Barros ◽  
Maurilio Alves Moreira
Keyword(s):  
Genetic Correlation ◽  
Soybean Cyst Nematode ◽  
Recombinant Inbred Lines ◽  
Indirect Selection ◽  
Cyst Nematode ◽  
Inheritance Pattern ◽  
Genetic Components ◽  
Randomized Design ◽  
Soybean Resistance ◽  
Completely Randomized Design

The objective of this work was to determine soybean resistance inheritance to Heterodera glycines Ichinohe (soybean cyst nematode - SCN) races 3 and 9, as well as to evaluate the efficiency of direct and indirect selection in a soybean population of 112 recombinant inbred lines (RIL) derived from the resistant cultivar Hartwig. The experiment was conducted in a completely randomized design, in Londrina, PR, Brazil. The estimated narrow-sense heritabilities for resistance to races 3 and 9 were 80.67 and 77.97%. The genetic correlation coefficient (r g = 0.17; p<0.01) shows that some genetic components of resistance to these two races are inherited together. The greatest genetic gain by indirect selection was obtained to race 9, selecting to race 3 due to simpler inheritance of resistance to race 9 and not because these two races share common resistance genes. The resistance of cultivar Hartwig to races 3 and 9 is determined by 4 and 2 genes, respectively. One of these genes confers resistance to both races, explaining a fraction of the significant genetic correlation found between resistance to these SCN races. The inheritance pattern described indicates that selection for resistance to SCN must be performed for each race individually.

scholarly journals Genetics and Adaptation of Soybean Cyst Nematode to Broad Spectrum Soybean Resistance

2017 ◽  
Vol 7 (3) ◽  
pp. 835-841 ◽  
Author(s):  
Michael Gardner ◽  
Robert Heinz ◽  
Jianying Wang ◽  
Melissa G. Mitchum
Keyword(s):  
Broad Spectrum ◽  
Soybean Cyst Nematode ◽  
Cyst Nematode ◽  
Soybean Resistance
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