Symptom Severity, Yield, Seed Mottling and Seed Transmission of Soybean Mosaic Virus in Susceptible and Resistant Soybean: The Influence of Infection Stage and Growth Temperature

1992 ◽  
Vol 135 (1) ◽  
pp. 28-36 ◽  
Author(s):  
J. C. Tu
Keyword(s):  
Mosaic Virus ◽  
Growth Temperature ◽  
Symptom Severity ◽  
Soybean Mosaic Virus ◽  
Seed Transmission ◽  
Infection Stage

Evaluation of germ plasm for resistant to Soybean mosaic virus (SMV)

2020 ◽  
Vol 21 (1) ◽  
pp. 6-9
Author(s):  
Wuye Ria Andayanie
Keyword(s):  
Abiotic Stress ◽  
Environmental Factors ◽  
Mosaic Virus ◽  
Polyclonal Antibody ◽  
Symptom Severity ◽  
Germ Plasm ◽  
Polyclonal Antibodies ◽  
Soybean Mosaic Virus ◽  
High Yield ◽  
High Yields

Soybean superior varieties with high yields and are resistant to abiotic stress have been largely released, although some varieties grown in the field are not resistant to SMV. In addition, the opportunity to obtain lines of hope as prospective varieties with high yield and resistance to SMV is very small. The method for evaluating soybean germplasm is based on serological observations of 98 accessions of leaf samples from SMV inoculation with T isolate. The evaluation results of 98 accessions based on visual observations showed 31 genotypes reacting very resistant or healthy to mild resistant category to SMV T isolate  with a percentage of symptom severity of 0 −30 %. Among 31 genotypes there are 2 genotypes (PI 200485; M8Grb 44; Mlg 3288) with the category of visually very resistant and resistant, respectively and  Mlg 3288  with the category of mild resistant.  They have a good agronomic appearance with a weight of 100 seeds (˃10 g) and react negatively with polyclonal antibodies to SMV, except Mlg 3288 reaction is not consistent, despite the weight of 100 seeds (˃ 10 g). Leaf samples from 98 accessions revealed various symptoms of SMV infection in the field. This diversity of symptoms is caused by susceptibility to accession, when infection occurs, and environmental factors. Keywords—: soybean; genotipe; Soybean mosaic virus (SMV); disease severity; polyclonal  antibody

scholarly journals Role of Soybean mosaic virus–Encoded Proteins in Seed and Aphid Transmission in Soybean

2013 ◽  
Vol 103 (9) ◽  
pp. 941-948 ◽  
Author(s):  
Sushma Jossey ◽  
Houston A. Hobbs ◽  
Leslie L. Domier
Keyword(s):  
Mosaic Virus ◽  
Seed Quality ◽  
Soybean Mosaic Virus ◽  
Seed Transmission ◽  
Aphid Transmission ◽  
Plant Introduction ◽  
Sequence Motif ◽  
Coding Region ◽  
Encoded Proteins ◽  
Seed Transmissibility

Soybean mosaic virus (SMV) is seed and aphid transmitted and can cause significant reductions in yield and seed quality in soybean (Glycine max). The roles in seed and aphid transmission of selected SMV-encoded proteins were investigated by constructing mutants in and chimeric recombinants between SMV 413 (efficiently aphid and seed transmitted) and an isolate of SMV G2 (not aphid or seed transmitted). As previously reported, the DAG amino acid sequence motif near the amino terminus of the coat protein (CP) was the major determinant in differences in aphid transmissibility of the two SMV isolates, and helper component proteinase (HC-Pro) played a secondary role. Seed transmission of SMV was influenced by P1, HC-Pro, and CP. Replacement of the P1 coding region of SMV 413 with that of SMV G2 significantly enhanced seed transmissibility of SMV 413. Substitution in SMV 413 of the two amino acids that varied in the CPs of the two isolates with those from SMV G2, G to D in the DAG motif and Q to P near the carboxyl terminus, significantly reduced seed transmission. The Q-to-P substitution in SMV 413 also abolished virus-induced seed-coat mottling in plant introduction 68671. This is the first report associating P1, CP, and the DAG motif with seed transmission of a potyvirus and suggests that HC-Pro interactions with CP are important for multiple functions in the virus infection cycle.

scholarly journals Co-infection of Soybean with Soybean mosaic virus and Alfalfa mosaic virus Results in Disease Synergism and Alteration in Accumulation Level of Both Viruses

Plant Disease ◽  
2009 ◽  
Vol 93 (12) ◽  
pp. 1259-1264 ◽  
Author(s):  
M. Malapi-Nelson ◽  
R.-H. Wen ◽  
B. H. Ownley ◽  
M. R. Hajimorad
Keyword(s):  
Mosaic Virus ◽  
Symptom Severity ◽  
Soybean Mosaic Virus ◽  
Alfalfa Mosaic Virus ◽  
Viral Disease ◽  
Plant Viruses ◽  
Mechanical Inoculation ◽  
Independent Manner ◽  
Symptom Remission ◽  
Diverse Plant

Co-infection of potyviruses with taxonomically diverse plant viruses results in disease synergism and elevation in the level of accumulation of non-potyviruses involved. In the majority of cases, however, the accumulation level of potyviruses remains essentially unaltered. A few potyviruses, such as Soybean mosaic virus (SMV), naturally infect soybean (Glycine max). Soybean is also a natural host to a number of non-potyviruses including Alfalfa mosaic virus (AMV), which causes mild symptoms often associated with symptom remission. We have now studied the interactions between AMV and SMV on symptom severity and accumulation level of each of the two viruses in soybean. Co-infection of soybean with AMV and SMV was established following mechanical inoculation, irrespective of simultaneous or sequential introduction of the two viruses. In multiple experiments, co-infection of soybean resulted in severe symptoms in doubly infected plants in a strain-independent manner, with enhancement in the level of AMV indicating that the interaction of AMV with SMV is synergistic. Conversely, the level of SMV accumulation was reduced. This suggests that in co-infection with AMV, SMV interacts antagonistically. The observation that co-infection of AMV and SMV results in disease synergism suggests enhancement of potential that AMV may become a serious viral disease of soybean.

scholarly journals Multiple Loci Condition Seed Transmission of Soybean mosaic virus (SMV) and SMV-Induced Seed Coat Mottling in Soybean

2011 ◽  
Vol 101 (6) ◽  
pp. 750-756 ◽  
Author(s):  
Leslie L. Domier ◽  
Houston A. Hobbs ◽  
Nancy K. McCoppin ◽  
Charles R. Bowen ◽  
Todd A. Steinlage ◽  
...  
Keyword(s):  
Mosaic Virus ◽  
Seed Coat ◽  
Soybean Mosaic Virus ◽  
Seed Transmission ◽  
Primary Sources ◽  
Posttranscriptional Gene Silencing ◽  
Plant Introductions ◽  
Multiple Loci ◽  
Soybean Plants ◽  
Simple Sequence

Infection of soybean plants with Soybean mosaic virus (SMV), which is transmitted by aphids and through seed, can cause significant reductions in seed production and quality. Because seedborne infections are the primary sources of inoculum for SMV infections in North America, host-plant resistance to seed transmission can limit the pool of plants that can serve as sources of inoculum. To examine the inheritance of SMV seed transmission in soybean, crosses were made between plant introductions (PIs) with high (PI88799), moderate (PI60279), and low (PI548391) rates of transmission of SMV through seed. In four F2 populations, SMV seed transmission segregated as if conditioned by two or more genes. Consequently, a recombinant inbred line population was derived from a cross between PIs 88799 and 548391 and evaluated for segregation of SMV seed transmission, seed coat mottling, and simple sequence repeat markers. Chromosomal regions on linkage groups C1 and C2 were significantly associated with both transmission of isolate SMV 413 through seed and SMV-induced seed coat mottling, and explained ≈42.8 and 46.4% of the variability in these two traits, respectively. Chromosomal regions associated with seed transmission and seed coat mottling contained homologues of Arabidopsis genes DCL3 and RDR6, which encode enzymes involved in RNA-mediated transcriptional and posttranscriptional gene silencing.

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