1
|
Wei W, Wu X, Garcia A, McCoppin N, Viana JPG, Murad PS, Walker DR, Hartman GL, Domier LL, Hudson ME, Clough SJ. An NBS-LRR protein in the Rpp1 locus negates the dominance of Rpp1-mediated resistance against Phakopsora pachyrhizi in soybean. Plant J 2023; 113:915-933. [PMID: 36424366 DOI: 10.1111/tpj.16038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 11/01/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
The soybean Rpp1 locus confers resistance to Phakopsora pachyrhizi, causal agent of rust, and resistance is usually dominant over susceptibility. However, dominance of Rpp1-mediated resistance is lost when a resistant genotype (Rpp1 or Rpp1b) is crossed with susceptible line TMG06_0011, and the mechanism of this dominant susceptibility (DS) is unknown. Sequencing the Rpp1 region reveals that the TMG06_0011 Rpp1 locus has a single nucleotide-binding site leucine-rich repeat (NBS-LRR) gene (DS-R), whereas resistant PI 594760B (Rpp1b) is similar to PI 200492 (Rpp1) and has three NBS-LRR resistance gene candidates. Evidence that DS-R is the cause of DS was reflected in virus-induced gene silencing of DS-R in Rpp1b/DS-R or Rpp1/DS-R heterozygous plants with resistance partially restored. In heterozygous Rpp1b/DS-R plants, expression of Rpp1b candidate genes was not significantly altered, indicating no effect of DS-R on transcription. Physical interaction of the DS-R protein with candidate Rpp1b resistance proteins was supported by yeast two-hybrid studies and in silico modeling. Thus, we conclude that suppression of resistance most likely does not occur at the transcript level, but instead probably at the protein level, possibly with Rpp1 function inhibited by binding to the DS-R protein. The DS-R gene was found in other soybean lines, with an estimated allele frequency of 6% in a diverse population, and also found in wild soybean (Glycine soja). The identification of a dominant susceptible NBS-LRR gene provides insight into the behavior of NBS-LRR proteins and serves as a reminder to breeders that the dominance of an R gene can be influenced by a susceptibility allele.
Collapse
Affiliation(s)
- Wei Wei
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
| | - Xing Wu
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
- Department of Molecular, Cellular and Developmental Biology, Yale University, 260 Whitney Ave # 266, New Haven, CT, 06511, USA
| | - Alexandre Garcia
- Tropical Melhoramento e Genética, LTDA, Rodovia Celso Garcia Cid, Km 87, Cambé, PR, CEP: 86183-600, Brazil
| | - Nancy McCoppin
- Soybean/Maize Germplasm, Pathology and Genetics Research Unit, US Department of Agriculture, 1101 W. Peabody Dr, Urbana, IL, 61801, USA
| | - João Paulo Gomes Viana
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
| | - Praerona S Murad
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
| | - David R Walker
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
- Soybean/Maize Germplasm, Pathology and Genetics Research Unit, US Department of Agriculture, 1101 W. Peabody Dr, Urbana, IL, 61801, USA
| | - Glen L Hartman
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
- Soybean/Maize Germplasm, Pathology and Genetics Research Unit, US Department of Agriculture, 1101 W. Peabody Dr, Urbana, IL, 61801, USA
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
- Soybean/Maize Germplasm, Pathology and Genetics Research Unit, US Department of Agriculture, 1101 W. Peabody Dr, Urbana, IL, 61801, USA
| | - Matthew E Hudson
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
| | - Steven J Clough
- Department of Crop Sciences, University of Illinois, 1102 S Goodwin Ave, Urbana, IL, 61801, USA
- Soybean/Maize Germplasm, Pathology and Genetics Research Unit, US Department of Agriculture, 1101 W. Peabody Dr, Urbana, IL, 61801, USA
| |
Collapse
|
2
|
Thekke-Veetil T, McCoppin NK, Domier LL, Hajimorad M, Lambert KN, Lim HS, Hartman GL. Transient expression of a luciferase mRNA in plant-parasitic and free-living nematodes by electroporation. Mol Biochem Parasitol 2022; 250:111489. [DOI: 10.1016/j.molbiopara.2022.111489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 05/03/2022] [Accepted: 05/25/2022] [Indexed: 11/25/2022]
|
3
|
Hu R, Dias NP, Soltani N, Vargas-Asencio J, Hensley DD, Perry KL, Domier LL, Hajimorad MR. Cultivated and Wild Grapevines in Tennessee Possess Overlapping but Distinct Virus Populations. Plant Dis 2021; 105:2785-2791. [PMID: 33560883 DOI: 10.1094/pdis-11-20-2483-sc] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Viruses and viroids prevalent in a population of 42 wild grapevines (i.e., free-living, uncultivated grapevines; Vitis spp.) were compared with those in a population of 85 cultivated grapevines collected in Tennessee, United States by RNA sequencing analysis of pools of ribosomal RNA-depleted total RNA. The sequences of 10 viruses (grapevine fleck virus, grapevine leafroll-associated virus 2, grapevine rupestris stem pitting-associated virus, grapevine Syrah virus 1, grapevine vein-clearing virus, grapevine virus B, grapevine virus E, tobacco ringspot virus, tomato ringspot virus, and a novel nano-like virus) and two viroids (hop stunt viroid and grapevine yellow speckle viroid 1) were detected in both grapevine populations. Sequences of four viruses (grapevine associated tymo-like virus, grapevine leafroll-associated virus 3, grapevine red blotch virus, and grapevine virus H) were identified only from cultivated grapevines. High, moderate, and low numbers of sequence reads were identified only from wild grapevines for a novel caulimovirus, an enamovirus, and alfalfa mosaic virus, respectively. The presence of most virus sequences and both viroids was verified independently in the original samples by reverse-transcription PCR followed by Sanger sequencing. Comparison of viral sequences shared by both populations showed that cultivated and wild grapevines harbored distinct sequence variants, which suggests that there was limited virus movement between the two populations. Collectively, this study represents the first unbiased survey of viruses and viroids in both cultivated and wild grapevines within a defined geographic region.
Collapse
Affiliation(s)
- Rongbin Hu
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996
| | - Naymã P Dias
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996
| | - Nourolah Soltani
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996
| | - Jose Vargas-Asencio
- Plant Pathology and Plant-Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853
| | - Darrell D Hensley
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996
| | - Keith L Perry
- Plant Pathology and Plant-Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY 14853
| | - Leslie L Domier
- Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL 61801
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801
| | - M R Hajimorad
- Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996
| |
Collapse
|
4
|
Yasmin T, Thekke-Veetil T, Hobbs HA, Nelson BD, McCoppin NK, Lagos-Kutz D, Hartman GL, Lambert KN, Walker DR, Domier LL. Aphis glycines virus 1, a new bicistronic virus with two functional internal ribosome entry sites, is related to a group of unclassified viruses in the Picornavirales. J Gen Virol 2020; 101:105-111. [PMID: 31769392 DOI: 10.1099/jgv.0.001355] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
A novel picorna-like virus, provisionally named Aphis glycines virus 1 (ApGlV1) was discovered by high-throughput sequencing of soybean total RNAs and detected in suction trap-collected Aphis glycines. The ApGlV1 genome contains two large ORFs organized similar to those of dicipiviruses in the Picornaviridae where ORFs 1 and 2 encode structural and nonstructural proteins, respectively. Both ORFs are preceded by internal ribosome entry site (IRES) elements. The 5' IRES was more active in dual luciferase activity assays than the IRES in the intergenic region. The ApGlV1 genome was predicted to encode a serine protease instead of a cysteine protease and showed very low aa sequence identities to recognized members of the Picornavirales. In phylogenetic analyses based on capsid protein and RNA-dependent RNA polymerase sequences, ApGlV1 consistently clustered with a group of unclassified bicistronic picorna-like viruses discovered from arthropods and plants that may represent a novel family in the order Picornavirales.
Collapse
Affiliation(s)
- Tuba Yasmin
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | | | - Houston A Hobbs
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Berlin D Nelson
- Deptartment of Plant Pathology, North Dakota State University, Fargo, ND, USA
| | - Nancy K McCoppin
- Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL, USA.,Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Doris Lagos-Kutz
- Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL, USA.,Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Glen L Hartman
- Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL, USA.,Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Kris N Lambert
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - David R Walker
- Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL, USA.,Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA.,Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL, USA
| |
Collapse
|
5
|
Lagos-Kutz D, Pawlowski ML, Haudenshield J, Han J, Domier LL, Hartman GL. Evaluation of Soybean for Resistance to Neohyadatothrips variabilis (Thysanoptera: Thripidae) Noninfected and Infected With Soybean Vein Necrosis Virus. J Econ Entomol 2020; 113:949-955. [PMID: 31800083 DOI: 10.1093/jee/toz318] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Indexed: 06/10/2023]
Abstract
Soybean vein necrosis virus (SVNV) was first identified in Arkansas and Tennessee in 2008 and is now known to be widespread in the United States and Canada. Multiple species of thrips transmit this and other tospoviruses with Neohydatothrips variabilis (Beach) (soybean thrips) cited as the most efficient vector for SVNV. In this study, 18 soybean, Glycine max (L.) Merr., genotypes were evaluated in four experiments by infesting plants with noninfected and SVNV-infected thrips using choice and no-choice assays. In both choice experiments with noninfected and SVNV-infected thrips, the lowest number of immature soybean thrips occurred on plant introductions (PIs) 229358 and 604464 while cultivars Williams 82 and Williamsfield Illini 3590N supported higher counts of mature thrips. The counts between the two assays (noninfected and SVNV-infected thrips) were positively correlated. In both no-choice experiments with noninfected and SVNV-infected thrips, counts of thrips did not differ by soybean genotypes. Further studies are needed to characterize the inheritance and mechanisms involved in the resistance found in the choice assay.
Collapse
Affiliation(s)
- D Lagos-Kutz
- United States Department of Agriculture-Agricultural Research Service, Urbana, IL
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - M L Pawlowski
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - J Haudenshield
- United States Department of Agriculture-Agricultural Research Service, Urbana, IL
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - J Han
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - L L Domier
- United States Department of Agriculture-Agricultural Research Service, Urbana, IL
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| | - G L Hartman
- United States Department of Agriculture-Agricultural Research Service, Urbana, IL
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL
| |
Collapse
|
6
|
Liu Q, Hobbs HA, Domier LL. Genome-wide association study of the seed transmission rate of soybean mosaic virus and associated traits using two diverse population panels. Theor Appl Genet 2019; 132:3413-3424. [PMID: 31630210 DOI: 10.1007/s00122-019-03434-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 09/17/2019] [Indexed: 06/10/2023]
Abstract
KEY MESSAGE Genome-wide association analyses identified candidates for genes involved in restricting virus movement into embryonic tissues, suppressing virus-induced seed coat mottling and preserving yield in soybean plants infected with soybean mosaic virus. Soybean mosaic virus (SMV) causes significant reductions in soybean yield and seed quality. Because seedborne infections can serve as primary sources of inoculum for SMV infections, resistance to SMV seed transmission provides a means to limit the impacts of SMV. In this study, two diverse population panels, Pop1 and Pop2, composed of 409 and 199 soybean plant introductions, respectively, were evaluated for SMV seed transmission rate, seed coat mottling, and seed yield from SMV-infected plants. The phenotypic data and genotypic data from the SoySNP50K dataset were analyzed using GAPIT and rrBLUP. For SMV seed transmission rate, a single locus was identified on chromosome 9 in Pop1. For SMV-induced seed coat mottling, loci were identified on chromosome 9 in Pop1 and on chromosome 3 in Pop2. For seed yield from SMV-infected plants, a single locus was identified on chromosome 3 in Pop2 that was within the map interval of a previously described quantitative trait locus for seed number. The high linkage disequilibrium regions surrounding the markers on chromosomes 3 and 9 contained a predicted nonsense-mediated RNA decay gene, multiple pectin methylesterase inhibitor genes (involved in restricting virus movement), two chalcone synthase genes, and a homolog of the yeast Rtf1 gene (involved in RNA-mediated transcriptional gene silencing). The results of this study provided additional insight into the genetic architecture of these three important traits, suggested candidate genes for downstream functional validation, and suggested that genomic prediction would outperform marker-assisted selection for two of the four trait-marker associations.
Collapse
Affiliation(s)
- Qiong Liu
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA
| | - Houston A Hobbs
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA
| | - Leslie L Domier
- Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL, 61801, USA.
| |
Collapse
|
7
|
Abstract
Heterodera glycines, the soybean cyst nematode (SCN), is a plant-parasitic nematode capable of manipulating host plant biochemistry and development. Many studies have suggested that the nematode has acquired genes from bacteria via horizontal gene transfer events (HGTs) that have the potential to enhance nematode parasitism. A recent allelic imbalance analysis identified two candidate virulence genes, which also appear to have entered the SCN genome through HGTs. One of the candidate genes, H. glycines biotin synthase (HgBioB), contained sequence polymorphisms between avirulent and virulent inbred SCN strains. To test the function of these HgBioB alleles, a complementation experiment using biotin synthase-deficient Escherichia coli was conducted. Here, we report that avirulent nematodes produce an active biotin synthase while virulent ones contain an inactive form of the enzyme. Moreover, sequencing analysis of HgBioB genes from SCN field populations indicates the presence of diverse mixture of HgBioB alleles with the virulent form being the most prevalent. We hypothesize that the mutations in the inactive HgBioB allele within the virulent SCN could result in a change in protein function that in some unknown way bolster its parasitic lifestyle.
Collapse
Affiliation(s)
- Khee Man Kwon
- Department of Crop Sciences, University of Illinois, Urbana, IL.,Department of Plant Pathology and Center for Applied Genetic Technologies, University of Georgia, Athens, GA
| | - Sadia Bekal
- Department of Agricultural and Biological Engineering, University of Illinois, Urbana, IL
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, IL.,United States Department of Agriculture - Agricultural Research Service, Urbana, IL
| | - Kris N Lambert
- Department of Crop Sciences, University of Illinois, Urbana, IL
| |
Collapse
|
8
|
Choi GW, Oh JP, Cho IS, Ju HK, Hu WX, Kim B, Seo EY, Park JS, Domier LL, Hammond J, Song K, Lim HS. Full-Length Infectious Clones of Two New Isolates of Tomato Mosaic Virus Induce Distinct Symptoms Associated with Two Differential Amino Acid Residues in 128-kDa Protein. Plant Pathol J 2019; 35:538-542. [PMID: 31632228 PMCID: PMC6788407 DOI: 10.5423/ppj.nt.12.2018.0286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 06/02/2019] [Accepted: 06/10/2019] [Indexed: 06/10/2023]
Abstract
In 2017, two new tomato mosaic virus (ToMV) isolates were collected from greenhouses in Buyeo, Chungcheongnam-do, South Korea. Full-length cDNAs of the new ToMV isolates were cloned into dual cauliflower mosaic virus 35S and T7 promoter-driven vectors, sequenced and their pathogenicities investigated. The nucleotide sequences of isolates GW1 (MH507165) and GW2 (MH507166) were 99% identical, resulting in only two amino acid differences in nonconserved region II and the helicase domain, Ile668Thr and Val834Ile. The two isolates were most closely related to a ToMV isolate from Taiwan (KJ207374). Isolate GW1 (Ile668, Val834) induced a systemic hypersensitive response in Nicotiana benthamiana compared with the isolate GW2, which a single residue substitution showed was due to Val834.
Collapse
Affiliation(s)
- Go-Woon Choi
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - June-Pyo Oh
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - In-Sook Cho
- Horticultural and Herbal Crop Environment Division, National Institute of Horticultural and Herbal Science, RDA, Wanju 55365,
Korea
| | - Hye-Kyoung Ju
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Wen-Xing Hu
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Boram Kim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Eun-Young Seo
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Jong-Seok Park
- Department of Horticulture, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL 61801,
USA
| | - John Hammond
- United States Department of Agriculture-Agricultural Research Service, Floral and Nursery Plants Research Unit, Beltsville, MD 20705,
USA
| | - Kihak Song
- Department of Urology, Chungnam National University School of Medicine, Daejeon 34134,
Korea
| | - Hyoun-Sub Lim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| |
Collapse
|
9
|
Kim IH, Ju HK, Gong J, Han JY, Seo EY, Cho SW, Hu WX, Choi SR, Lim YP, Domier LL, Hammond J, Lim HS. A Turnip Mosaic Virus Determinant of Systemic Necrosis in Nicotiana benthamiana and a Novel Resistance-Breaking Determinant in Chinese Cabbage Identified from Chimeric Infectious Clones. Phytopathology 2019; 109:1638-1647. [PMID: 31044662 DOI: 10.1094/phyto-08-18-0323-r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Infectious clones of Korean turnip mosaic virus (TuMV) isolates KIH1 and HJY1 share 88.1% genomic nucleotides and 96.4% polyprotein amino acid identity, and they induce systemic necrosis or mild mosaic, respectively, in Nicotiana benthamiana. Chimeric constructs between these isolates exchanged the 5', central, and 3' domains of KIH1 (K) and HJY1 (H), where the order of the letters indicates the origin of these domains. KIH1 and chimeras KHH and KKH induced systemic necrosis, whereas HJY1 and chimeras HHK, HKK, and HKH induced mild symptoms, indicating the determinant of necrosis to be within the 5' 3.9 kb of KIH1; amino acid identities of the included P1, Helper component protease, P3, 6K1, and cylindrical inclusion N-terminal domain were 90.06, 98.91, 93.80, 100, and 100%, respectively. Expression of P1 or P3 from a potato virus X vector yielded symptom differences only between P3 of KIH1 and HJY1, implicating a role for P3 in necrosis in N. benthamiana. Chimera KKH infected Brassica rapa var. pekinensis 'Norang', which was resistant to both KIH1 and HJY1, indicating that two separate TuMV determinants are required to overcome the resistance. Ability of diverse TuMV isolates, chimeras, and recombinants to overcome resistance in breeding lines may allow identification of novel resistance genes.
Collapse
Affiliation(s)
- Ik-Hyun Kim
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Hye-Kyoung Ju
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Junsu Gong
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Jae-Yeong Han
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Eun-Young Seo
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Sang-Won Cho
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Wen-Xing Hu
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Su Ryun Choi
- Department of Horticulture, Chungnam National University, Daejeon, South Korea
| | - Yong Pyo Lim
- Department of Horticulture, Chungnam National University, Daejeon, South Korea
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, U.S.A
| | - John Hammond
- Floral and Nursery Plants Research Unit, U.S. National Arboretum, U.S. Department of Agriculture-Agriculture Research Service, Beltsville, MD, U.S.A
| | - Hyoun-Sub Lim
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| |
Collapse
|
10
|
Hu WX, Kim BJ, Kwak Y, Seo EY, Kim JK, Han JY, Kim IH, Lim YP, Cho IS, Domier LL, Hammond J, Lim HS. Five Newly Collected Turnip Mosaic Virus (TuMV) Isolates from Jeju Island, Korea are Closely Related to Previously Reported Korean TuMV Isolates but Show Distinctive Symptom Development. Plant Pathol J 2019; 35:381-387. [PMID: 31481861 PMCID: PMC6706019 DOI: 10.5423/ppj.nt.11.2018.0238] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 04/29/2019] [Accepted: 05/21/2019] [Indexed: 06/10/2023]
Abstract
For several years, temperatures in the Korean peninsula have gradually increased due to climate change, resulting in a changing environment for growth of crops and vegetables. An associated consequence is that emerging species of insect vector have caused increased viral transmission. In Jeju Island, Korea, occurrences of viral disease have increased. Here, we report characterization of five newly collected turnip mosaic virus (TuMV) isolates named KBJ1, KBJ2, KBJ3, KBJ4 and KBJ5 from a survey on Jeju Island in 2017. Full-length cDNAs of each isolate were cloned into the pJY vector downstream of cauliflower mosaic virus 35S and bacteriophage T7 RNA polymerase promoters. Their fulllength sequences share 98.9-99.9% nucleotide sequence identity and were most closely related to previously reported Korean TuMV isolates. All isolates belonged to the BR group and infected both Chinese cabbage and radish. Four isolates induced very mild symptoms in Nicotiana benthamiana but KBJ5 induced a hypersensitive response. Symptom differences may result from three amino acid differences uniquely present in KBJ5; Gly(382)Asp, Ile(891)Val, and Lys(2522)Glu in P1, P3, and NIb, respectively.
Collapse
Affiliation(s)
- Wen-Xing Hu
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Byoung-Jo Kim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Younghwan Kwak
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Eun-Young Seo
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Jung-Kyu Kim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Jae-Yeong Han
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Ik-Hyun Kim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Yong Pyo Lim
- Molecular Genetics and Genomics Laboratory, Department of Horticulture, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - In-Sook Cho
- National Institute of Horticultural & Herbal Science, Rural Development Administration, Wanju 55365,
Korea
| | - Leslie L Domier
- Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, United States Department of Agriculture-Agricultural Research Service, Urbana, IL 61801,
USA
| | - John Hammond
- Floral and Nursery Plants Research Unit, United States National Arboretum, United States Department of Agriculture-Agricultural Research Service, Beltsville, MD 20705,
USA
| | - Hyoun-Sub Lim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| |
Collapse
|
11
|
Ju HK, Kim IH, Hu WX, Kim B, Choi GW, Kim J, Lim YP, Domier LL, Hammond J, Lim HS. A single nucleotide change in the overlapping MP and CP reading frames results in differences in symptoms caused by two isolates of Youcai mosaic virus. Arch Virol 2019; 164:1553-1565. [PMID: 30923966 DOI: 10.1007/s00705-019-04222-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 02/22/2019] [Indexed: 12/25/2022]
Abstract
Two isolates of Youcai mosaic virus (YoMV) were obtained, and their full-length genomic sequences were determined. Full-length infectious cDNA clones of each isolate were generated in which the viral sequence was under the control of dual T7 and 35S promoters for both in vitro transcript production and agro-infiltration. Comparison of the predicted amino acid sequences of the encoded proteins revealed only four differences between the isolates: three in the RNA-dependent RNA polymerase (RdRp) (V383I and M492I in the 125-kDa protein and T1245M in the 182-kDa protein); and one in the overlapping region of the movement protein (MP) and coat protein (CP) genes, affecting only the N-terminal domain of CP (CP M17T). One of the isolates caused severe symptoms in Nicotiana benthamiana plants, while the other caused only mild symptoms. In order to identify the amino acid residues associated with symptom severity, chimeric constructs were generated by combining parts of the two infectious YoMV clones, and the symptoms in infected plants were compared to those induced by the parental isolates. This allowed us to conclude that the M17T substitution in the N-terminal domain of CP was responsible for the difference in symptom severity. The M17T variation was found to be unique among characterized YoMV isolates. A difference in potential post-translational modification resulting from the presence of a predicted casein kinase II phosphorylation site only in the CP of isolate HK2 may be responsible for the symptom differences.
Collapse
Affiliation(s)
- Hye-Kyoung Ju
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Ik-Hyun Kim
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Wen-Xing Hu
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Boram Kim
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Go-Woon Choi
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Jungkyu Kim
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea
| | - Yong Pyo Lim
- Department of Horticulture, Chungnam National University, Daejeon, South Korea
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, USDA-ARS, Urbana, IL, USA
| | - John Hammond
- Floral and Nursery Plants Research Unit, United States National Arboretum, USDA-ARS, Beltsville, MD, USA.
| | - Hyoun-Sub Lim
- Department of Applied Biology, Chungnam National University, Daejeon, South Korea.
| |
Collapse
|
12
|
Chang HX, Tan R, Hartman GL, Wen Z, Sang H, Domier LL, Whitham SA, Wang D, Chilvers MI. Characterization of Soybean STAY-GREEN Genes in Susceptibility to Foliar Chlorosis of Sudden Death Syndrome. Plant Physiol 2019; 180:711-717. [PMID: 30952683 PMCID: PMC6548243 DOI: 10.1104/pp.19.00046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/27/2019] [Indexed: 05/10/2023]
Abstract
Genetic mappings for soybean sudden death syndrome foliar chlorosis suggested that STAY-GREEN genes with loss-of-susceptibility mechanism may have different breeding merits for disease resistance.
Collapse
Affiliation(s)
- Hao-Xun Chang
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824
| | - Ruijuan Tan
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824
| | - Glen L Hartman
- Department of Crop Sciences, University of Illinois, Urbana, Illinois 61801
- U.S. Department of Agriculture-Agricultural Research Service, Urbana, Illinois 61801
| | - Zixiang Wen
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824
| | - Hyunkyu Sang
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, Illinois 61801
- U.S. Department of Agriculture-Agricultural Research Service, Urbana, Illinois 61801
| | - Steven A Whitham
- Department of Plant Pathology and Microbiology, Iowa State University, Ames, Iowa 50011
| | - Dechun Wang
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824
| | - Martin I Chilvers
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, Michigan 48824
| |
Collapse
|
13
|
Hu WX, Seo EY, Cho IS, Kim JK, Ju HK, Kim IH, Choi GW, Kim B, Ahn CH, Domier LL, Oh SK, Hammond J, Lim HS. Amino acid differences in the N-terminal half of the polyprotein of Chinese turnip mosaic virus isolates affect symptom expression in Nicotiana benthamiana and radish. Arch Virol 2019; 164:1683-1689. [PMID: 30963304 DOI: 10.1007/s00705-019-04242-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 03/08/2019] [Indexed: 10/27/2022]
Affiliation(s)
- Wen-Xing Hu
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea
| | - Eun-Young Seo
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea
| | - In-Sook Cho
- National Institute of Horticultural and Herbal Science, Rural Development Administration, 100, Jeonju, Jeollabuk-do, Republic of Korea
| | - Jung-Kyu Kim
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea
| | - Hye-Kyoung Ju
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea
| | - Ik-Hyun Kim
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea
| | - Go-Woon Choi
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea
| | - Boram Kim
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea
| | - Chun-Hee Ahn
- Breeding Research Institute of Daeil Seed, Gimje, Jeollabuk-do, Republic of Korea
| | - Leslie L Domier
- Department of Crop Sciences, United States Department of Agriculture-Agricultural Research Service, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Sang-Keun Oh
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea.
| | - John Hammond
- Floral and Nursery Plants Research Unit, United States Department of Agriculture-Agricultural Research Service, U.S. National Arboretum, Beltsville, MD, 20705, USA.
| | - Hyoun-Sub Lim
- Chungnam National University, 99 Daehak-ro, Daejeon, Republic of Korea.
| |
Collapse
|
14
|
|
15
|
Wen L, Chang HX, Brown PJ, Domier LL, Hartman GL. Genome-wide association and genomic prediction identifies soybean cyst nematode resistance in common bean including a syntenic region to soybean Rhg1 locus. Hortic Res 2019; 6:9. [PMID: 30622722 PMCID: PMC6312554 DOI: 10.1038/s41438-018-0085-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/18/2018] [Accepted: 08/13/2018] [Indexed: 05/27/2023]
Abstract
A genome-wide association study (GWAS) was applied to detect single nucleotide polymorphisms (SNPs) significantly associated with resistance to Heterodera glycines (HG) also known as the soybean cyst nematode (SCN) in the core collection of common bean, Phaseolus vulgaris. There were 84,416 SNPs identified in 363 common bean accessions. GWAS identified SNPs on chromosome (Chr) 1 that were significantly associated with resistance to HG type 2.5.7. These SNPs were in linkage disequilibrium with a gene cluster orthologous to the three genes at the Rhg1 locus in soybean. A novel signal on Chr 7 was detected and associated with resistance to HG type 1.2.3.5.6.7. Genomic predictions (GPs) for resistance to these two SCN HG types in common bean achieved prediction accuracy of 0.52 and 0.41, respectively. Our study generated a high-quality SNP panel for 363 common bean accessions and demonstrated that both GWAS and GP were effective strategies to understand the genetic architecture of SCN resistance in common bean.
Collapse
Affiliation(s)
- Liwei Wen
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801 USA
- Present Address: Monsanto, St. Louis, MO 63167 USA
| | - Hao-Xun Chang
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801 USA
- Present Address: Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI 48824 USA
| | - Patrick J. Brown
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801 USA
- Present Address: Department of Plant Sciences, University of California, Davis, CA 95616 USA
| | - Leslie L. Domier
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801 USA
- United States Department of Agriculture—Agricultural Research Service, Urbana, IL USA
| | - Glen L. Hartman
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801 USA
- United States Department of Agriculture—Agricultural Research Service, Urbana, IL USA
| |
Collapse
|
16
|
Lin J, Ye R, Thekke-Veetil T, Staton ME, Arelli PR, Bernard EC, Hewezi T, Domier LL, Hajimorad MR. A novel picornavirus-like genome from transcriptome sequencing of sugar beet cyst nematode represents a new putative genus. J Gen Virol 2018; 99:1418-1424. [PMID: 30156527 DOI: 10.1099/jgv.0.001139] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Analysis of transcriptome sequence data from eggs and second-stage juveniles (J2s) of sugar beet cyst nematode (SBCN, Heterodera schachtii) identified the full-length genome of a positive-sense single-stranded RNA virus, provisionally named sugar beet cyst nematode virus 1 (SBCNV1). The SBCNV1 sequence was detected in both eggs and J2s, indicating its possible vertical transmission. The 9503-nucleotide genome sequence contains a single long open reading frame, which was predicted to encode a polyprotein with conserved domains for picornaviral structural proteins proximal to its amino terminus and RNA helicase, cysteine proteinase and RNA-dependent RNA polymerase (RdRp) conserved domains proximal to its carboxyl terminus, hallmarks of viruses belonging to the order Picornavirales. Phylogenetic analysis of the predicted SBCNV1 RdRp amino acid sequence indicated that the SBCNV1 sequence is most closely related to members of the family Secoviridae, which includes genera of nematode-transmitted plant-infecting viruses. SBCNV1 represents the first fully sequenced viral genome from SBCN.
Collapse
Affiliation(s)
- Jingyu Lin
- 1Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
| | - Rongjian Ye
- 1Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA.,†Present address: Life Science and Technology Center, China National Seed Group Company Limited, Wuhan 430075, PR China
| | | | - Margaret E Staton
- 1Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
| | - Prakash R Arelli
- 3Crop Genetics Research Unit, USDA-ARS, 605 Airways Blvd., Jackson, TN 38301, USA
| | - Ernest C Bernard
- 1Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
| | - Tarek Hewezi
- 4Department of Plant Sciences, University of Tennessee, Knoxville, TN 37996, USA
| | - Leslie L Domier
- 2Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA.,5Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, USDA-ARS, Urbana, IL 61801, USA
| | - M R Hajimorad
- 1Department of Entomology and Plant Pathology, University of Tennessee, Knoxville, TN 37996, USA
| |
Collapse
|
17
|
Liu Q, Chang S, Hartman GL, Domier LL. Assembly and annotation of a draft genome sequence for Glycine latifolia, a perennial wild relative of soybean. Plant J 2018; 95:71-85. [PMID: 29671916 DOI: 10.1111/tpj.13931] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 03/12/2018] [Accepted: 03/22/2018] [Indexed: 05/14/2023]
Abstract
Glycine latifolia (Benth.) Newell & Hymowitz (2n = 40), one of the 27 wild perennial relatives of soybean, possesses genetic diversity and agronomically favorable traits that are lacking in soybean. Here, we report the 939-Mb draft genome assembly of G. latifolia (PI 559298) using exclusively linked-reads sequenced from a single Chromium library. We organized scaffolds into 20 chromosome-scale pseudomolecules utilizing two genetic maps and the Glycine max (L.) Merr. genome sequence. High copy numbers of putative 91-bp centromere-specific tandem repeats were observed in consecutive blocks within predicted pericentromeric regions on several pseudomolecules. No 92-bp putative centromeric repeats, which are abundant in G. max, were detected in G. latifolia or Glycine tomentella. Annotation of the assembled genome and subsequent filtering yielded a high confidence gene set of 54 475 protein-coding loci. In comparative analysis with five legume species, genes related to defense responses were significantly overrepresented in Glycine-specific orthologous gene families. A total of 304 putative nucleotide-binding site (NBS)-leucine-rich-repeat (LRR) genes were identified in this genome assembly. Different from other legume species, we observed a scarcity of TIR-NBS-LRR genes in G. latifolia. The G. latifolia genome was also predicted to contain genes encoding 367 LRR-receptor-like kinases, a family of proteins involved in basal defense responses and responses to abiotic stress. The genome sequence and annotation of G. latifolia provides a valuable source of alternative alleles and novel genes to facilitate soybean improvement. This study also highlights the efficacy and cost-effectiveness of the application of Chromium linked-reads in diploid plant genome de novo assembly.
Collapse
Affiliation(s)
- Qiong Liu
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA
| | - Sungyul Chang
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA
| | - Glen L Hartman
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA
- USDA ARS, Urbana, IL, 61801, USA
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA
- USDA ARS, Urbana, IL, 61801, USA
| |
Collapse
|
18
|
Amarasinghe GK, Aréchiga Ceballos NG, Banyard AC, Basler CF, Bavari S, Bennett AJ, Blasdell KR, Briese T, Bukreyev A, Caì Y, Calisher CH, Campos Lawson C, Chandran K, Chapman CA, Chiu CY, Choi KS, Collins PL, Dietzgen RG, Dolja VV, Dolnik O, Domier LL, Dürrwald R, Dye JM, Easton AJ, Ebihara H, Echevarría JE, Fooks AR, Formenty PBH, Fouchier RAM, Freuling CM, Ghedin E, Goldberg TL, Hewson R, Horie M, Hyndman TH, Jiāng D, Kityo R, Kobinger GP, Kondō H, Koonin EV, Krupovic M, Kurath G, Lamb RA, Lee B, Leroy EM, Maes P, Maisner A, Marston DA, Mor SK, Müller T, Mühlberger E, Ramírez VMN, Netesov SV, Ng TFF, Nowotny N, Palacios G, Patterson JL, Pawęska JT, Payne SL, Prieto K, Rima BK, Rota P, Rubbenstroth D, Schwemmle M, Siddell S, Smither SJ, Song Q, Song T, Stenglein MD, Stone DM, Takada A, Tesh RB, Thomazelli LM, Tomonaga K, Tordo N, Towner JS, Vasilakis N, Vázquez-Morón S, Verdugo C, Volchkov VE, Wahl V, Walker PJ, Wang D, Wang LF, Wellehan JFX, Wiley MR, Whitfield AE, Wolf YI, Yè G, Zhāng YZ, Kuhn JH. Taxonomy of the order Mononegavirales: update 2018. Arch Virol 2018; 163:2283-2294. [PMID: 29637429 DOI: 10.1007/s00705-018-3814-x] [Citation(s) in RCA: 123] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 03/12/2018] [Indexed: 11/27/2022]
Abstract
In 2018, the order Mononegavirales was expanded by inclusion of 1 new genus and 12 novel species. This article presents the updated taxonomy of the order Mononegavirales as now accepted by the International Committee on Taxonomy of Viruses (ICTV) and summarizes additional taxonomic proposals that may affect the order in the near future.
Collapse
Affiliation(s)
- Gaya K Amarasinghe
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | | | | | - Christopher F Basler
- Center for Microbial Pathogenesis, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Sina Bavari
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, USA
| | - Andrew J Bennett
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Kim R Blasdell
- Australian Animal Health Laboratory, CSIRO Health and Biosecurity, Geelong, VIC, Australia
| | - Thomas Briese
- Department of Epidemiology, Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | | | - Yíngyún Caì
- Integrated Research Facility at Fort Detrick (IRF-Frederick), Division of Clinical Research (DCR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), B-8200 Research Plaza, Fort Detrick, Frederick, MD, 21702, USA
| | - Charles H Calisher
- Arthropod-Borne and Infectious Diseases Laboratory, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Cristine Campos Lawson
- Integrated Research Facility at Fort Detrick (IRF-Frederick), Division of Clinical Research (DCR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), B-8200 Research Plaza, Fort Detrick, Frederick, MD, 21702, USA
| | - Kartik Chandran
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Colin A Chapman
- Department of Anthropology and McGill School of Environment, McGill University, Montreal, QC, Canada.,Wildlife Conservation Society, Bronx, NY, USA.,Section of Social Systems Evolution, Primate Research Institute, Kyoto University, Kyoto, Japan
| | | | - Kang-Seuk Choi
- Avian Disease Research Division, Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
| | - Peter L Collins
- Respiratory Viruses Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MA, USA
| | - Ralf G Dietzgen
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| | - Valerian V Dolja
- Department of Botany and Plant Pathology and Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, USA
| | - Olga Dolnik
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Chicago, IL, USA
| | | | - John M Dye
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, USA
| | - Andrew J Easton
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Hideki Ebihara
- Department of Molecular Medicine, Mayo Clinic, Rochester, MN, USA
| | - Juan E Echevarría
- National Center of Microbiology, Carlos III Institute of Health, Majadahonda, Madrid, Spain
| | | | | | - Ron A M Fouchier
- Department of Viroscience, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Conrad M Freuling
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institute, WHO Collaborating Centre for Rabies Surveillance and Research, Greifswald-Insel Riems, Germany
| | - Elodie Ghedin
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Tony L Goldberg
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Roger Hewson
- Public Health England, Porton Down, Salisbury, Wiltshire, UK
| | - Masayuki Horie
- Hakubi Center for Advanced Research, Kyoto University, Kyoto, Japan
| | - Timothy H Hyndman
- College of Veterinary Medicine, School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, Australia
| | - Dàohóng Jiāng
- State Key Laboratory of Agricultural Microbiology, The Provincial Key Lab of Plant Pathology of Húběi Province, College of Plant Science and Technology, Huázhōng Agricultural University, Wuhan, China
| | - Robert Kityo
- Department of Zoology, Makerere University, Kampala, Uganda
| | - Gary P Kobinger
- Department of Microbiology, Immunology and Infectious Diseases, Université Laval, Quebec City, Canada
| | - Hideki Kondō
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Eugene V Koonin
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Mart Krupovic
- Department of Microbiology, Institut Pasteur, Paris, France
| | - Gael Kurath
- US Geological Survey Western Fisheries Research Center, Seattle, WA, USA
| | - Robert A Lamb
- Department of Molecular Biosciences, Northwestern University, Evanston, IL, USA.,Howard Hughes Medical Institute, Northwestern University, Evanston, IL, USA
| | - Benhur Lee
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Eric M Leroy
- Centre International de Recherches Médicales de Franceville, Institut de Recherche pour le Développement, Franceville, Gabon
| | - Piet Maes
- Zoonotic Infectious Diseases Unit, KU Leuven, Leuven, Belgium
| | - Andrea Maisner
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | | | - Sunil Kumar Mor
- Department of Veterinary Population Medicine and Veterinary Diagnostic Laboratory, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, USA
| | - Thomas Müller
- Institute of Molecular Virology and Cell Biology, Friedrich-Loeffler-Institute, WHO Collaborating Centre for Rabies Surveillance and Research, Greifswald-Insel Riems, Germany
| | - Elke Mühlberger
- Department of Microbiology and National Emerging Infectious Diseases Laboratories, Boston University School of Medicine, Boston, MA, USA
| | | | - Sergey V Netesov
- Novosibirsk State University, Novosibirsk, Novosibirsk Oblast, Russia
| | - Terry Fei Fan Ng
- Department of Laboratory Medicine, University of California at San Francisco, San Francisco, CA, USA
| | - Norbert Nowotny
- Institute of Virology, University of Veterinary Medicine, Vienna, Austria.,Department of Basic Medical Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Gustavo Palacios
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, USA
| | - Jean L Patterson
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Janusz T Pawęska
- Center for Emerging Zoonotic and Parasitic Diseases, National Institute for Communicable Diseases of the National Health Laboratory Service, Sandringham, Johannesburg, Gauteng, South Africa
| | - Susan L Payne
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Karla Prieto
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, USA
| | - Bertus K Rima
- Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, The Queen's University of Belfast, Belfast, Northern Ireland, UK
| | - Paul Rota
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Dennis Rubbenstroth
- Institute of Virology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Martin Schwemmle
- Institute of Virology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Stuart Siddell
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK
| | | | - Qisheng Song
- Division of Plant Sciences, College of Agriculture, Food and Natural Resources, University of Missouri, Columbia, MO, USA
| | - Timothy Song
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Mark D Stenglein
- Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - David M Stone
- Centre for Environment, Fisheries and Aquaculture Science, Weymouth, Dorset, UK
| | - Ayato Takada
- Division of Global Epidemiology, Hokkaido University Research Center for Zoonosis Control, Sapporo, Japan
| | - Robert B Tesh
- Department of Pathology and Center for Biodefense and Emerging Infectious Diseases, Center for Tropical Diseases and Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX, USA
| | | | - Keizō Tomonaga
- Institute for Frontier Life and Medical Sciences (inFront), Kyoto University, Kyoto, Japan
| | - Noël Tordo
- Institut Pasteur, Unité des Stratégies Antivirales, WHO Collaborative Centre for Viral Haemorrhagic Fevers and Arboviruses, OIE Reference Laboratory for RVFV and CCHFV, Paris, France.,Institut Pasteur de Guinée, Conakry, Guinea
| | - Jonathan S Towner
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Nikos Vasilakis
- Department of Pathology and Center for Biodefense and Emerging Infectious Diseases, Center for Tropical Diseases and Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX, USA
| | - Sonia Vázquez-Morón
- National Center of Microbiology, Carlos III Institute of Health, Majadahonda, Madrid, Spain
| | - Claudio Verdugo
- Universidad Austral de Chile Facultad de Ciencias Veterinarias, Valdivia, Chile
| | - Viktor E Volchkov
- Molecular Basis of Viral Pathogenicity, CIRI, INSERM U1111-CNRS, UMR5308, Université de Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Victoria Wahl
- National Biodefense Analysis and Countermeasures Center, Fort Detrick, Frederick, MD, USA
| | - Peter J Walker
- School of Biological Sciences, University of Queensland, St. Lucia, QLD, Australia
| | - David Wang
- Departments of Molecular Microbiology and Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Lin-Fa Wang
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore, Singapore
| | - James F X Wellehan
- College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Michael R Wiley
- The University of Texas Medical Branch, Galveston, TX, USA.,University of Nebraska Medical Center, Omaha, NE, USA
| | - Anna E Whitfield
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC, USA
| | - Yuri I Wolf
- National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Gōngyín Yè
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Insect Sciences, Zhejiang University, Hangzhou, China
| | - Yǒng-Zhèn Zhāng
- State Key Laboratory for Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Zoonoses, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick (IRF-Frederick), Division of Clinical Research (DCR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), B-8200 Research Plaza, Fort Detrick, Frederick, MD, 21702, USA.
| |
Collapse
|
19
|
Thekke-Veetil T, McCoppin NK, Domier LL. Strain-specific association of soybean dwarf virus small subgenomic RNA with virus particles. Virus Res 2017; 242:100-105. [PMID: 28893654 DOI: 10.1016/j.virusres.2017.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 09/05/2017] [Accepted: 09/07/2017] [Indexed: 10/18/2022]
Abstract
Soybean dwarf virus (SbDV) produces a large subgenomic RNA (LsgRNA) for expression of structural and movement proteins and a small subgenomic RNA (SsgRNA) that does not contain an open reading frame. Sucrose gradient-purified SbDV virions from soybean plants systemically infected with SbDV by aphids and Nicotiana benthamiana leaves agroinfiltrated with infectious clones of two red clover SbDV isolates encapsidated genomic RNA and were associated with SsgRNA in a strain-specific manner. The LsgRNA was protected from RNase degradation, but not packaged into virions as indicated by its presence primarily in ELISA-negative fractions near the tops of sucrose gradients even in mutants that did not express coat protein. Nucleotide differences in the SsgRNA region between isolates conferred differential association of SsgRNA with virions.
Collapse
Affiliation(s)
| | - Nancy K McCoppin
- United State Department of Agriculture, Agricultural Research Service, Urbana, IL, 61801, USA
| | - Leslie L Domier
- United State Department of Agriculture, Agricultural Research Service, Urbana, IL, 61801, USA.
| |
Collapse
|
20
|
Kim NG, Seo EY, Han SH, Gong JS, Park CN, Park HS, Domier LL, Hammond J, Lim HS. Pseudomonas oleovorans Strain KBPF-004 Culture Supernatants Reduced Seed Transmission of Cucumber green mottle mosaic virus and Pepper mild mottle virus, and Remodeled Aggregation of 126 kDa and Subcellular Localization of Movement Protein of Pepper mild mottle virus. Plant Pathol J 2017; 33:393-401. [PMID: 28811756 PMCID: PMC5538443 DOI: 10.5423/ppj.oa.03.2017.0047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 04/13/2017] [Indexed: 06/07/2023]
Abstract
Efforts to control viral diseases in crop production include several types of physical or chemical treatments; antiviral extracts of a number of plants have also been examined to inhibit plant viral infection. However, treatments utilizing naturally selected microorganisms with activity against plant viruses are poorly documented. Here we report isolation of a soil inhabiting bacterium, Pseudomonas oleovorans strain KBPF-004 (developmental code KNF2016) which showed antiviral activity against mechanical transmission of tobamoviruses. Antiviral activity was also evaluated in seed transmission of two tobamoviruses, Pepper mild mottle virus (PMMoV) and Cucumber green mottle mosaic virus (CGMMV), by treatment of seed collected from infected pepper and watermelon, respectively. Pepper and watermelon seeds were treated with culture supernatant of P. oleovorans strain KBPF-004 or control strain ATCC 8062 before planting. Seeds germinated after treatment with water or ATCC 8062 yielded about 60% CGMMV or PMMoV positive plants, whereas < 20% of KBPF-004-treated seeds were virus-infected, a significantly reduced seed transmission rate. Furthermore, supernatant of P. oleovorans strain KBPF-004 remodeled aggregation of PMMoV 126 kDa protein and subcellular localization of movement protein in Nicotiana benthamiana, diminishing aggregation of the 126 kDa protein and essentially abolishing association of the movement protein with the microtubule network. In leaves agroinfiltrated with constructs expressing the coat protein (CP) of either PMMoV or CGMMV, less full-size CP was detected in the presence of supernatant of P. oleovorans strain KBPF-004. These changes may contribute to the antiviral effects of P. oleovorans strain KBPF-004.
Collapse
Affiliation(s)
- Nam-Gyu Kim
- Central Research Institute, Kyung Nong Co., Ltd., Gyeongju 38175,
Korea
| | - Eun-Young Seo
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Sang-Hyuk Han
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Jun-Su Gong
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| | - Cheol-Nam Park
- Central Research Institute, Kyung Nong Co., Ltd., Gyeongju 38175,
Korea
| | - Ho-Seop Park
- Central Research Institute, Kyung Nong Co., Ltd., Gyeongju 38175,
Korea
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, United States Department of Agriculture- Agricultural Research Service (USDA-ARS), Urbana, IL 61801,
USA
| | - John Hammond
- Floral and Nursery Plants Research Unit, United States National Arboretum, United States Department of Agriculture- Agricultural Research Service (USDA-ARS), Beltsville, MD 20705,
USA
| | - Hyoun-Sub Lim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon 34134,
Korea
| |
Collapse
|
21
|
Han SH, Park JS, Han JY, Gong JS, Park CH, Kim JK, Seo EY, Domier LL, Hammond J, Lim HS. New Korean isolates of Pepper mild mottle virus (PMMoV) differ in symptom severity and subcellular localization of the 126 kDa protein. Virus Genes 2017; 53:434-445. [PMID: 28176159 DOI: 10.1007/s11262-017-1432-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 02/01/2017] [Indexed: 12/14/2022]
Abstract
Two isolates of Pepper mild mottle virus (PMMoV) were selected from a nationwide survey of pepper fields in South Korea in 2014 and 2015, in which Cucumber mosaic virus was also detected; the two PMMoV isolates, Sangcheong 47 (S-47, KX399390) and Jeongsong 76 (J-76, KX399389), share ~99% nucleotide and amino acid identity and are closely related to Japanese and Chinese isolates at the nucleotide level. Amino acid sequence comparisons revealed 99.73, 99.81, 98.44, and 100% identity in the ORF1, ORF2, MP, and CP, respectively, between S-47 and J-76. In addition, we generated infectious clones of S-47 and J-76, and T7 promoter driven transcripts of each inoculated to Nicotiana benthamiana produced very severe symptoms, whereas only mild symptoms developed in Capsicum annuum. Gene silencing suppressor function of 126 kDa and cytoskeleton-connected plasmodesmata localization of movement protein of S-47 and J-76 showed no difference between isolates, whereas 126 kDa of J-76 clearly formed intracellular aggregates not observed with S-47 126 kDa protein. Differences between these isolates in 126/183 kDa-related functions including subcellular localization suggest that differential interactions with host proteins may affect symptom development in C. annuum.
Collapse
Affiliation(s)
- Sang-Hyuk Han
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea
| | - Jong-Seo Park
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea
| | - Jae-Yeong Han
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea
| | - Jun-Su Gong
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea
| | - Chan-Hwan Park
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea
| | - Jung-Kyu Kim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea
| | - Eun-Young Seo
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea
| | - Leslie L Domier
- United States Department of Agriculture - Agricultural Research Service, University of Illinois at Urbana-Champaign, Department of Crop Sciences, Champaign, IL, 61801, USA
| | - John Hammond
- United States Department of Agriculture - Agricultural Research Service, United States National Arboretum, Floral and Nursery Plants Research Unit, 10300 Baltimore Avenue B-010A, Beltsville, MD, 20705, USA.
| | - Hyoun-Sub Lim
- Department of Applied Biology, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 305-764, Korea.
| |
Collapse
|
22
|
Yasmin T, Nelson BD, Hobbs HA, McCoppin NK, Lambert KN, Domier LL. Molecular characterization of a new soybean-infecting member of the genus Nepovirus identified by high-throughput sequencing. Arch Virol 2017; 162:1089-1092. [PMID: 27921175 DOI: 10.1007/s00705-016-3152-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 11/03/2016] [Indexed: 11/30/2022]
Abstract
The complete nucleotide sequence of a new soybean-infecting member of the genus Nepovirus (provisionally named "soybean latent spherical virus" [SLSV]) was identified by high-throughput sequencing of RNAs from soybean leaf samples from North Dakota, USA. The sequences of RNAs 1 (8,190 nt) and 2 (5,788 nt) were completed by rapid amplification of cDNA ends. Each contained a single long open reading frame and a 3' nontranslated region of greater than 1,500 nt. The predicted amino acid sequences of the two ORFs were most closely related to nepoviruses in subgroup C. Full-length cDNAs of RNAs 1 and 2 were cloned and used to inoculate soybean plants, which did not display obvious symptoms. These results suggest that SLSV represents a new species in the genus Nepovirus.
Collapse
Affiliation(s)
- Tuba Yasmin
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Berlin D Nelson
- Department of Plant Pathology, North Dakota State University, Fargo, ND, USA
| | - Houston A Hobbs
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Nancy K McCoppin
- United States Department of Agriculture, Agricultural Research Service, Urbana, IL, USA
| | - Kris N Lambert
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA.
- United States Department of Agriculture, Agricultural Research Service, Urbana, IL, USA.
| |
Collapse
|
23
|
Chang HX, Lipka AE, Domier LL, Hartman GL. Characterization of Disease Resistance Loci in the USDA Soybean Germplasm Collection Using Genome-Wide Association Studies. Phytopathology 2016; 106:1139-1151. [PMID: 27135674 DOI: 10.1094/phyto-01-16-0042-fi] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Genetic resistance is a key strategy for disease management in soybean. Over the last 50 years, soybean germplasm has been phenotyped for resistance to many pathogens, resulting in the development of disease-resistant elite breeding lines and commercial cultivars. While biparental linkage mapping has been used to identify disease resistance loci, genome-wide association studies (GWAS) using high-density and high-quality markers such as single nucleotide polymorphisms (SNPs) has become a powerful tool to associate molecular markers and phenotypes. The objective of our study was to provide a comprehensive understanding of disease resistance in the United States Department of Agriculture Agricultural Research Service Soybean Germplasm Collection by using phenotypic data in the public Germplasm Resources Information Network and public SNP data (SoySNP50K). We identified SNPs significantly associated with disease ratings from one bacterial disease, five fungal diseases, two diseases caused by nematodes, and three viral diseases. We show that leucine-rich repeat (LRR) receptor-like kinases and nucleotide-binding site-LRR candidate resistance genes were enriched within the linkage disequilibrium regions of the significant SNPs. We review and present a global view of soybean resistance loci against multiple diseases and discuss the power and the challenges of using GWAS to discover disease resistance in soybean.
Collapse
Affiliation(s)
- Hao-Xun Chang
- All authors: Department of Crop Sciences, University of Illinois, Urbana, IL 61801; and third and fourth authors: USDA-Agricultural Research Services, Urbana
| | - Alexander E Lipka
- All authors: Department of Crop Sciences, University of Illinois, Urbana, IL 61801; and third and fourth authors: USDA-Agricultural Research Services, Urbana
| | - Leslie L Domier
- All authors: Department of Crop Sciences, University of Illinois, Urbana, IL 61801; and third and fourth authors: USDA-Agricultural Research Services, Urbana
| | - Glen L Hartman
- All authors: Department of Crop Sciences, University of Illinois, Urbana, IL 61801; and third and fourth authors: USDA-Agricultural Research Services, Urbana
| |
Collapse
|
24
|
Afonso CL, Amarasinghe GK, Bányai K, Bào Y, Basler CF, Bavari S, Bejerman N, Blasdell KR, Briand FX, Briese T, Bukreyev A, Calisher CH, Chandran K, Chéng J, Clawson AN, Collins PL, Dietzgen RG, Dolnik O, Domier LL, Dürrwald R, Dye JM, Easton AJ, Ebihara H, Farkas SL, Freitas-Astúa J, Formenty P, Fouchier RAM, Fù Y, Ghedin E, Goodin MM, Hewson R, Horie M, Hyndman TH, Jiāng D, Kitajima EW, Kobinger GP, Kondo H, Kurath G, Lamb RA, Lenardon S, Leroy EM, Li CX, Lin XD, Liú L, Longdon B, Marton S, Maisner A, Mühlberger E, Netesov SV, Nowotny N, Patterson JL, Payne SL, Paweska JT, Randall RE, Rima BK, Rota P, Rubbenstroth D, Schwemmle M, Shi M, Smither SJ, Stenglein MD, Stone DM, Takada A, Terregino C, Tesh RB, Tian JH, Tomonaga K, Tordo N, Towner JS, Vasilakis N, Verbeek M, Volchkov VE, Wahl-Jensen V, Walsh JA, Walker PJ, Wang D, Wang LF, Wetzel T, Whitfield AE, Xiè JT, Yuen KY, Zhang YZ, Kuhn JH. Taxonomy of the order Mononegavirales: update 2016. Arch Virol 2016; 161:2351-60. [PMID: 27216929 PMCID: PMC4947412 DOI: 10.1007/s00705-016-2880-1] [Citation(s) in RCA: 352] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Accepted: 04/27/2016] [Indexed: 12/17/2022]
Abstract
In 2016, the order Mononegavirales was emended through the addition of two new families (Mymonaviridae and Sunviridae), the elevation of the paramyxoviral subfamily Pneumovirinae to family status (Pneumoviridae), the addition of five free-floating genera (Anphevirus, Arlivirus, Chengtivirus, Crustavirus, and Wastrivirus), and several other changes at the genus and species levels. This article presents the updated taxonomy of the order Mononegavirales as now accepted by the International Committee on Taxonomy of Viruses (ICTV).
Collapse
Affiliation(s)
- Claudio L Afonso
- Southeast Poultry Research Laboratory, Agricultural Research Service, US Department of Agriculture, Athens, GA, USA
| | - Gaya K Amarasinghe
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Krisztián Bányai
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Yīmíng Bào
- Information Engineering Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, USA
| | - Christopher F Basler
- Center for Microbial Pathogenesis, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Sina Bavari
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, USA
| | - Nicolás Bejerman
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria, Córdoba, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Kim R Blasdell
- CSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, VIC, Australia
| | - François-Xavier Briand
- Avian and Rabbit Virology Immunology and Parasitology Unit, French Agency for Food, Environmental and Occupational Health and Safety, Ploufragan, France
| | - Thomas Briese
- Center for Infection and Immunity, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Alexander Bukreyev
- Departments of Pathology and Microbiology & Immunology, Galveston National Laboratory, The University of Texas Medical Branch, Galveston, TX, USA
| | - Charles H Calisher
- Arthropod-Borne and Infectious Diseases Laboratory, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - Kartik Chandran
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Jiāsēn Chéng
- State Key Laboratory of Agricultural Microbiology, The Provincial Key Lab of Plant Pathology of Húběi Province, College of Plant Science and Technology, Huázhōng Agricultural University, Wuhan, China
| | - Anna N Clawson
- Integrated Research Facility at Fort Detrick (IRF-Frederick), Division of Clinical Research (DCR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), B-8200 Research Plaza, Fort Detrick, Frederick, MD, 21702, USA
| | - Peter L Collins
- Respiratory Viruses Section, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Ralf G Dietzgen
- Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St. Lucia, QLD, Australia
| | - Olga Dolnik
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Champaign, IL, USA
| | | | - John M Dye
- United States Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD, USA
| | - Andrew J Easton
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Hideki Ebihara
- Rocky Mountain Laboratories Integrated Research Facility, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Szilvia L Farkas
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | | | | | - Ron A M Fouchier
- Department of Viroscience, Postgraduate School Molecular Medicine, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Yànpíng Fù
- State Key Laboratory of Agricultural Microbiology, The Provincial Key Lab of Plant Pathology of Húběi Province, College of Plant Science and Technology, Huázhōng Agricultural University, Wuhan, China
| | - Elodie Ghedin
- Department of Biology, Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | | | - Roger Hewson
- Public Health England, Porton Down, Wiltshire, Salisbury, UK
| | - Masayuki Horie
- Joint Faculty of Veterinary Medicine, Transboundary Animal Diseases Research Center, Kagoshima University, Kagoshima, Japan
| | - Timothy H Hyndman
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, WA, Australia
| | - Dàohóng Jiāng
- State Key Laboratory of Agricultural Microbiology, The Provincial Key Lab of Plant Pathology of Húběi Province, College of Plant Science and Technology, Huázhōng Agricultural University, Wuhan, China
| | - Elliot W Kitajima
- Núcleo de Apoio à Pesquisa em Microscopia Eletrônica Aplicada a Agricultura, Escola Superior de Agricultura "Luiz de Queiroz", Universidade de São Paulo, Piracicaba, São Paulo, Brazil
| | - Gary P Kobinger
- Special Pathogens Program, National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, MB, Canada
| | - Hideki Kondo
- Institute of Plant Science and Resources, Okayama University, Kurashiki, Japan
| | - Gael Kurath
- US Geological Survey Western Fisheries Research Center, Seattle, WA, USA
| | - Robert A Lamb
- Department of Molecular Biosciences, Northwestern University, Evanston, IL, USA
- Howard Hughes Medical Institute, Northwestern University, Evanston, IL, USA
| | - Sergio Lenardon
- Instituto de Patología Vegetal, Centro de Investigaciones Agropecuarias, Instituto Nacional de Tecnología Agropecuaria, Córdoba, Argentina
| | - Eric M Leroy
- Centre International de Recherches Médicales de Franceville, Institut de Recherche pour le Développement, Franceville, Gabon
| | - Ci-Xiu Li
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Xian-Dan Lin
- Wēnzhōu Center for Disease Control and Prevention, Wenzhou, China
| | - Lìjiāng Liú
- State Key Laboratory of Agricultural Microbiology, The Provincial Key Lab of Plant Pathology of Húběi Province, College of Plant Science and Technology, Huázhōng Agricultural University, Wuhan, China
| | - Ben Longdon
- Department of Genetics, University of Cambridge, Cambridge, UK
| | - Szilvia Marton
- Institute for Veterinary Medical Research, Centre for Agricultural Research, Hungarian Academy of Sciences, Budapest, Hungary
| | - Andrea Maisner
- Institute of Virology, Philipps University Marburg, Marburg, Germany
| | - Elke Mühlberger
- Department of Microbiology and National Emerging Infectious Diseases Laboratory, Boston University School of Medicine, Boston, MA, USA
| | - Sergey V Netesov
- Novosibirsk State University, Novosibirsk, Novosibirsk Oblast, Russia
| | - Norbert Nowotny
- Institute of Virology, University of Veterinary Medicine, Vienna, Austria
- Department of Basic Medical Sciences, College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Jean L Patterson
- Department of Virology and Immunology, Texas Biomedical Research Institute, San Antonio, TX, USA
| | - Susan L Payne
- Department of Veterinary Pathobiology, College of Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, TX, USA
| | - Janusz T Paweska
- Center for Emerging and Zoonotic Diseases, National Institute for Communicable Diseases of the National Health Laboratory Service, Sandringham-Johannesburg, Gauteng, South Africa
| | - Rick E Randall
- Biomedical Sciences Research Complex, University of St. Andrews, St. Andrews, Scotland, UK
| | - Bertus K Rima
- Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, The Queen's University of Belfast, Belfast, Northern Ireland, UK
| | - Paul Rota
- National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Dennis Rubbenstroth
- Institute for Virology, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany
| | - Martin Schwemmle
- Institute for Virology, Faculty of Medicine, Medical Center-University of Freiburg, University of Freiburg, Freiburg, Germany
| | - Mang Shi
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | | | - Mark D Stenglein
- Department of Microbiology, Immunology, and Pathology, College of Veterinary Medicine and Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - David M Stone
- Centre for Environment, Fisheries and Aquaculture Science Weymouth, Dorset, UK
| | - Ayato Takada
- Division of Global Epidemiology, Hokkaido University Research Center for Zoonosis Control, Sapporo, Japan
| | - Calogero Terregino
- Istituto Zooprofilattico Sperimentale delle Venezie, Department of Comparative Biomedical Sciences, National/OIE Reference Laboratory for Newcastle Disease and Avian Influenza, FAO Reference Centre for Animal Influenza and Newcastle Disease, OIE Collaborating Centre for Diseases at the Human-Animal Interface, Legnaro, Padova, Italy
| | - Robert B Tesh
- Departments of Pathology and Microbiology & Immunology, Galveston National Laboratory, The University of Texas Medical Branch, Galveston, TX, USA
| | - Jun-Hua Tian
- Wǔhàn Center for Disease Control and Prevention, Wuhan, China
| | - Keizo Tomonaga
- Institute for Virus Research, Kyoto University, Kyoto, Japan
| | - Noël Tordo
- Institut Pasteur, Unité des Stratégies Antivirales, Paris, France
- Institut Pasteur de Guinée, Conakry, Guinea
| | - Jonathan S Towner
- Viral Special Pathogens Branch, Division of High-Consequence Pathogens Pathology, National Center for Emerging and Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Nikos Vasilakis
- Center for Biodefense and Emerging Infectious Diseases, Department of Pathology, The University of Texas Medical Branch, Galveston, TX, USA
- Center for Tropical Diseases, Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX, USA
| | - Martin Verbeek
- Wageningen University and Research, Wageningen, The Netherlands
| | - Viktor E Volchkov
- Molecular Basis of Viral Pathogenicity, CIRI, INSERM U1111, CNRS UMR5308, Université de Lyon, Université Claude Bernard Lyon 1, Ecole Normale Supérieure de Lyon, Lyon, France
| | - Victoria Wahl-Jensen
- National Biodefense Analysis and Countermeasures Center, Fort Detrick, Frederick, MD, USA
| | - John A Walsh
- School of Life Sciences, University of Warwick, Coventry, UK
| | - Peter J Walker
- CSIRO Health and Biosecurity, Australian Animal Health Laboratory, Geelong, VIC, Australia
| | - David Wang
- Departments of Molecular Microbiology and Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Lin-Fa Wang
- Department of Agriculture and Fisheries, Biosecurity Queensland, Brisbane, QLD, Australia
- Program in Emerging Infectious Diseases, Duke-NUS Graduate Medical School, Singapore, Singapore
| | - Thierry Wetzel
- DLR Rheinpfalz, Institute of Plant Protection, Neustadt an der Weinstrasse, Germany
| | | | - Ji Tāo Xiè
- State Key Laboratory of Agricultural Microbiology, The Provincial Key Lab of Plant Pathology of Húběi Province, College of Plant Science and Technology, Huázhōng Agricultural University, Wuhan, China
| | - Kwok-Yung Yuen
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, University of Hong Kong, Hong Kong Special Administrative Region, Hong Kong, China
| | - Yong-Zhen Zhang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Jens H Kuhn
- Integrated Research Facility at Fort Detrick (IRF-Frederick), Division of Clinical Research (DCR), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), B-8200 Research Plaza, Fort Detrick, Frederick, MD, 21702, USA.
| |
Collapse
|
25
|
Marzano SYL, Domier LL. Reprint of “Novel mycoviruses discovered from metatranscriptomics survey of soybean phyllosphere phytobiomes”. Virus Res 2016; 219:11-21. [DOI: 10.1016/j.virusres.2016.05.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/30/2015] [Accepted: 11/01/2015] [Indexed: 10/21/2022]
|
26
|
Chang HX, Brown PJ, Lipka AE, Domier LL, Hartman GL. Genome-wide association and genomic prediction identifies associated loci and predicts the sensitivity of Tobacco ringspot virus in soybean plant introductions. BMC Genomics 2016; 17:153. [PMID: 26924079 PMCID: PMC4770782 DOI: 10.1186/s12864-016-2487-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/17/2016] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Genome-wide association study (GWAS) is a useful tool for detecting and characterizing traits of interest including those associated with disease resistance in soybean. The availability of 50,000 single nucleotide polymorphism (SNP) markers (SoySNP50K iSelect BeadChip; www.soybase.org ) on 19,652 soybean and wild soybean plant introductions (PIs) in the USDA Soybean Germplasm Collection allows for fast and robust identification of loci associated with a desired phenotype. By using a genome-wide marker set to predict phenotypic values, genomic prediction for phenotype-unknown but genotype-determined PIs has become possible. The goal of this study was to describe the genetic architecture associated with sensitivity to Tobacco ringspot virus (TRSV) infection in the USDA Soybean Germplasm Collection. RESULTS TRSV-induced disease sensitivities of the 697 soybean PIs were rated on a one to five scale with plants rated as one exhibiting mild symptoms and plants rated as five displaying terminal bud necrosis (i.e., bud blight). The GWAS identified a single locus on soybean chromosome 2 strongly associated with TRSV sensitivity. Cross-validation showed a correlation of 0.55 (P < 0.01) to TRSV sensitivity without including the most significant SNP marker from the GWAS as a covariate, which was a better estimation compared to the mean separation by using significant SNPs. The genomic estimated breeding values for the remaining 18,955 unscreened soybean PIs in the USDA Soybean Germplasm Collection were obtained using the GAPIT R package. To evaluate the prediction accuracy, an additional 55 soybean accessions were evaluated for sensitivity to TRSV, which resulted in a correlation of 0.67 (P < 0.01) between actual and predicted severities. CONCLUSION A single locus responsible for TRSV sensitivity in soybean was identified on chromosome 2. Two leucine-rich repeat receptor-like kinase genes were located near the locus and may control sensitivity of soybean to TRSV infection. Furthermore, a comprehensive genomic prediction for TRSV sensitivity for all accessions in the USDA Soybean Germplasm Collection was completed.
Collapse
Affiliation(s)
- Hao-Xun Chang
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA.
| | - Patrick J Brown
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA.
| | - Alexander E Lipka
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA.
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA.
- USDA-Agricultural Research Service, Urbana, IL, 61801, USA.
| | - Glen L Hartman
- Department of Crop Sciences, University of Illinois, Urbana, IL, 61801, USA.
- USDA-Agricultural Research Service, Urbana, IL, 61801, USA.
- National Soybean Research Center, University of Illinois, 1101 W. Peabody Dr., Urbana, IL, 61801, USA.
| |
Collapse
|
27
|
Marzano SYL, Domier LL. Novel mycoviruses discovered from metatranscriptomics survey of soybean phyllosphere phytobiomes. Virus Res 2016; 213:332-342. [PMID: 26547008 DOI: 10.1016/j.virusres.2015.11.002] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/30/2015] [Accepted: 11/01/2015] [Indexed: 11/25/2022]
Abstract
Mycoviruses can be beneficial to plants in that they can debilitate pathogenic fungi thereby reducing the severity of associated plant diseases. Studies to date have focused primarily on culturable fungi that represent a fraction of natural fungal populations. The nonculturable fungi, however, can harbor diverse populations of mycoviruses that reduce plant disease or enhance resistance to abiotic stress. Metatranscriptome analysis of field-grown plant samples using high-throughput sequencing offers the possibility of unbiased detection and quantification of mycoviruses regardless of the culturability of their fungal hosts together with the complete associated microbial consortia. In this study, we describe the fungal viromes of the phyllosphere of production soybean fields in Illinois, USA by analyzing the metatranscriptomes of thousands of soybean leaf samples collected during the 2008 and 2009 growing seasons. The analyses identified 25 partial genome sequences that represented at least 22 mycovirus genomes, only one of which had been described previously. The novel mycovirus genomes showed similarity to 10 distinct lineages including the genera Alphapartitivirus, Botybirnavirus, Endornavirus, Mitovirus, Mycoflexivirus, Ourmiavirus, Totivirus, Victorivirus, family Tombusviridae, order Mononegavirales, and the recently proposed genus Gemycircularvirus. The present study adds to the wealth of mycoviruses associated with plant phytobiomes and establishes groundwork needed for further characterization of the viruses.
Collapse
Affiliation(s)
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA; United States Department of Agriculture-Agricultural Research Service, Urbana, IL, USA.
| |
Collapse
|
28
|
Chang HX, Domier LL, Radwan O, Yendrek CR, Hudson ME, Hartman GL. Identification of Multiple Phytotoxins Produced by Fusarium virguliforme Including a Phytotoxic Effector (FvNIS1) Associated With Sudden Death Syndrome Foliar Symptoms. Mol Plant Microbe Interact 2016; 29:96-108. [PMID: 26646532 DOI: 10.1094/mpmi-09-15-0219-r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Sudden death syndrome (SDS) of soybean is caused by a soilborne pathogen, Fusarium virguliforme. Phytotoxins produced by F. virguliforme are translocated from infected roots to leaves, in which they cause SDS foliar symptoms. In this study, additional putative phytotoxins of F. virguliforme were identified, including three secondary metabolites and 11 effectors. While citrinin, fusaric acid, and radicicol induced foliar chlorosis and wilting, Soybean mosaic virus (SMV)-mediated overexpression of F. virguliforme necrosis-inducing secreted protein 1 (FvNIS1) induced SDS foliar symptoms that mimicked the development of foliar symptoms in the field. The expression level of fvnis1 remained steady over time, although foliar symptoms were delayed compared with the expression levels. SMV::FvNIS1 also displayed genotype-specific toxicity to which 75 of 80 soybean cultivars were susceptible. Genome-wide association mapping further identified three single nucleotide polymorphisms at two loci, where three leucine-rich repeat receptor-like protein kinase (LRR-RLK) genes were found. Culture filtrates of fvnis1 knockout mutants displayed a mild reduction in phytotoxicity, indicating that FvNIS1 is one of the phytotoxins responsible for SDS foliar symptoms and may contribute to the quantitative susceptibility of soybean by interacting with the LRR-RLK genes.
Collapse
Affiliation(s)
| | - Leslie L Domier
- 1 University of Illinois
- 2 USDA-Agricultural Research Service; and
| | | | - Craig R Yendrek
- 1 University of Illinois
- 3 Institute for Genomic Biology, Urbana, IL, U.S.A
| | | | - Glen L Hartman
- 1 University of Illinois
- 2 USDA-Agricultural Research Service; and
| |
Collapse
|
29
|
Bekal S, Domier LL, Gonfa B, Lakhssassi N, Meksem K, Lambert KN. A SNARE-Like Protein and Biotin Are Implicated in Soybean Cyst Nematode Virulence. PLoS One 2015; 10:e0145601. [PMID: 26714307 PMCID: PMC4699853 DOI: 10.1371/journal.pone.0145601] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 12/07/2015] [Indexed: 11/24/2022] Open
Abstract
Phytoparasitic nematodes that are able to infect and reproduce on plants that are considered resistant are referred to as virulent. The mechanism(s) that virulent nematodes employ to evade or suppress host plant defenses are not well understood. Here we report the use of a genetic strategy (allelic imbalance analysis) to associate single nucleotide polymorphisms (SNPs) with nematode virulence genes in Heterodera glycines, the soybean cyst nematode (SCN). To accomplish this analysis, a custom SCN SNP array was developed and used to genotype SCN F3-derived populations grown on resistant and susceptible soybean plants. Three SNPs reproducibly showed allele imbalances between nematodes grown on resistant and susceptible plants. Two candidate SCN virulence genes that were tightly linked to the SNPs were identified. One SCN gene encoded biotin synthase (HgBioB), and the other encoded a bacterial-like protein containing a putative SNARE domain (HgSLP-1). The two genes mapped to two different linkage groups. HgBioB contained sequence polymorphisms between avirulent and virulent nematodes. However, the gene encoding HgSLP-1 had reduced copy number in virulent nematode populations and appears to produce multiple forms of the protein via intron retention and alternative splicing. We show that HgSLP-1 is an esophageal-gland protein that is secreted by the nematode during plant parasitism. Furthermore, in bacterial co-expression experiments, HgSLP-1 co-purified with the SCN resistance protein Rhg1 α-SNAP, suggesting that these two proteins physically interact. Collectively our data suggest that multiple SCN genes are involved in SCN virulence, and that HgSLP-1 may function as an avirulence protein and when absent it helps SCN evade host defenses.
Collapse
Affiliation(s)
- Sadia Bekal
- Department of Plant, Soil and Agricultural Systems, 1205 Lincoln Dr. Southern Illinois University, Carbondale, IL, 62901, United States of America
| | - Leslie L. Domier
- Department of Crop Sciences, University of Illinois, 1102 South Goodwin Ave. Urbana, IL, 61801, United States of America
| | - Biruk Gonfa
- Department of Crop Sciences, University of Illinois, 1102 South Goodwin Ave. Urbana, IL, 61801, United States of America
| | - Naoufal Lakhssassi
- Department of Plant, Soil and Agricultural Systems, 1205 Lincoln Dr. Southern Illinois University, Carbondale, IL, 62901, United States of America
| | - Khalid Meksem
- Department of Plant, Soil and Agricultural Systems, 1205 Lincoln Dr. Southern Illinois University, Carbondale, IL, 62901, United States of America
| | - Kris N. Lambert
- Department of Crop Sciences, University of Illinois, 1102 South Goodwin Ave. Urbana, IL, 61801, United States of America
| |
Collapse
|
30
|
Marzano SYL, Hobbs HA, Nelson BD, Hartman GL, Eastburn DM, McCoppin NK, Domier LL. Transfection of Sclerotinia sclerotiorum with in vitro transcripts of a naturally occurring interspecific recombinant of Sclerotinia sclerotiorum hypovirus 2 significantly reduces virulence of the fungus. J Virol 2015; 89:5060-71. [PMID: 25694604 PMCID: PMC4403457 DOI: 10.1128/jvi.03199-14] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Accepted: 02/16/2015] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED A recombinant strain of Sclerotinia sclerotiorum hypovirus 2 (SsHV2) was identified from a North American Sclerotinia sclerotiorum isolate (328) from lettuce (Lactuca sativa L.) by high-throughput sequencing of total RNA. The 5'- and 3'-terminal regions of the genome were determined by rapid amplification of cDNA ends. The assembled nucleotide sequence was up to 92% identical to two recently reported SsHV2 strains but contained a deletion near its 5' terminus of more than 1.2 kb relative to the other SsHV2 strains and an insertion of 524 nucleotides (nt) that was distantly related to Valsa ceratosperma hypovirus 1. This suggests that the new isolate is a heterologous recombinant of SsHV2 with a yet-uncharacterized hypovirus. We named the new strain Sclerotinia sclerotiorum hypovirus 2 Lactuca (SsHV2L) and deposited the sequence in GenBank with accession number KF898354. Sclerotinia sclerotiorum isolate 328 was coinfected with a strain of Sclerotinia sclerotiorum endornavirus 1 and was debilitated compared to cultures of the same isolate that had been cured of virus infection by cycloheximide treatment and hyphal tipping. To determine whether SsHV2L alone could induce hypovirulence in S. sclerotiorum, a full-length cDNA of the 14,538-nt viral genome was cloned. Transcripts corresponding to the viral RNA were synthesized in vitro and transfected into a virus-free isolate of S. sclerotiorum, DK3. Isolate DK3 transfected with SsHV2L was hypovirulent on soybean and lettuce and exhibited delayed maturation of sclerotia relative to virus-free DK3, completing Koch's postulates for the association of hypovirulence with SsHV2L. IMPORTANCE A cosmopolitan fungus, Sclerotinia sclerotiorum infects more than 400 plant species and causes a plant disease known as white mold that produces significant yield losses in major crops annually. Mycoviruses have been used successfully to reduce losses caused by fungal plant pathogens, but definitive relationships between hypovirus infections and hypovirulence in S. sclerotiorum were lacking. By establishing a cause-and-effect relationship between Sclerotinia sclerotiorum hypovirus Lactuca (SsHV2L) infection and the reduction in host virulence, we showed direct evidence that hypoviruses have the potential to reduce the severity of white mold disease. In addition to intraspecific recombination, this study showed that recent interspecific recombination is an important factor shaping viral genomes. The construction of an infectious clone of SsHV2L allows future exploration of the interactions between SsHV2L and S. sclerotiorum, a widespread fungal pathogen of plants.
Collapse
Affiliation(s)
| | - Houston A Hobbs
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA
| | - Berlin D Nelson
- Department of Plant Pathology, North Dakota State University, Fargo, North Dakota, USA
| | - Glen L Hartman
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA United States Department of Agriculture/Agricultural Research Service, Urbana, Illinois, USA
| | - Darin M Eastburn
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA
| | - Nancy K McCoppin
- United States Department of Agriculture/Agricultural Research Service, Urbana, Illinois, USA
| | - Leslie L Domier
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA United States Department of Agriculture/Agricultural Research Service, Urbana, Illinois, USA
| |
Collapse
|
31
|
Li S, Darwish O, Alkharouf N, Matthews B, Ji P, Domier LL, Zhang N, Bluhm BH. Draft genome sequence of Phomopsis longicolla isolate MSPL 10-6. Genom Data 2015; 3:55-6. [PMID: 26484148 PMCID: PMC4535830 DOI: 10.1016/j.gdata.2014.11.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Accepted: 11/10/2014] [Indexed: 11/26/2022]
Abstract
Phomopsis longicolla is the primary cause of Phomopsis seed decay in soybean. This disease severely affects soybean seed quality by reducing seed viability and oil content, altering seed composition, and increasing frequencies of moldy and/or split beans. It is one of the most economically important soybean diseases. Here, we report the de novo assembled draft genome sequence of the P. longicolla isolate MSPL10-6, which was isolated from field-grown soybean seed in Mississippi, USA. This study represents the first reported genome sequence of a seedborne fungal pathogen in the Diaporthe-Phomopsis complex. The P. longicolla genome sequence will enable research into the genetic basis of fungal infection of soybean seed and provide information for the study of soybean-fungal interactions. The genome sequence will also be valuable for molecular genetic marker development, manipulation of pathogenicity-related genes and development of new control strategies for this pathogen.
Collapse
Affiliation(s)
- Shuxian Li
- United States Department of Agriculture, Agricultural Research Service (USDA-ARS), Crop Genetics Research Unit, Stoneville, MS 38776, USA
| | - Omar Darwish
- Department of Computer and Information Sciences, Towson University, MD 21252, USA
| | - Nadim Alkharouf
- Department of Computer and Information Sciences, Towson University, MD 21252, USA
| | - Benjamin Matthews
- USDA-ARS, Beltsville Agriculture Research Center, Beltsville, MD 21075, USA
| | - Pingsheng Ji
- Department of Plant Pathology, University of Georgia, Tifton, GA 31794, USA
| | - Leslie L. Domier
- USDA-ARS, Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA
| | - Ning Zhang
- Department of Plant Biology Pathology, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
- Department of Biochemistry and Microbiology, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Burton H. Bluhm
- Department of Plant Pathology, University of Arkansas, Fayetteville, AR 72701, USA
| |
Collapse
|
32
|
Agindotan BO, Domier LL, Bradley CA. Detection and characterization of the first North American mastrevirus in switchgrass. Arch Virol 2015; 160:1313-7. [DOI: 10.1007/s00705-015-2367-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Accepted: 02/10/2015] [Indexed: 10/23/2022]
|
33
|
Chang S, Thurber CS, Brown PJ, Hartman GL, Lambert KN, Domier LL. Comparative mapping of the wild perennial Glycine latifolia and soybean (G. max) reveals extensive chromosome rearrangements in the genus Glycine. PLoS One 2014; 9:e99427. [PMID: 24937645 PMCID: PMC4061007 DOI: 10.1371/journal.pone.0099427] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Accepted: 05/14/2014] [Indexed: 12/22/2022] Open
Abstract
Soybean (Glycine max L. Mer.), like many cultivated crops, has a relatively narrow genetic base and lacks diversity for some economically important traits. Glycine latifolia (Benth.) Newell & Hymowitz, one of the 26 perennial wild Glycine species related to soybean in the subgenus Glycine Willd., shows high levels of resistance to multiple soybean pathogens and pests including Alfalfa mosaic virus, Heterodera glycines Ichinohe and Sclerotinia sclerotiorum (Lib.) de Bary. However, limited information is available on the genomes of these perennial Glycine species. To generate molecular resources for gene mapping and identification, high-density linkage maps were constructed for G. latifolia using single nucleotide polymorphism (SNP) markers generated by genotyping by sequencing and evaluated in an F2 population and confirmed in an F5 population. In each population, greater than 2,300 SNP markers were selected for analysis and segregated to form 20 large linkage groups. Marker orders were similar in the F2 and F5 populations. The relationships between G. latifolia linkage groups and G. max and common bean (Phaseolus vulgaris L.) chromosomes were examined by aligning SNP-containing sequences from G. latifolia to the genome sequences of G. max and P. vulgaris. Twelve of the 20 G. latifolia linkage groups were nearly collinear with G. max chromosomes. The remaining eight G. latifolia linkage groups appeared to be products of multiple interchromosomal translocations relative to G. max. Large syntenic blocks also were observed between G. latifolia and P. vulgaris. These experiments are the first to compare genome organizations among annual and perennial Glycine species and common bean. The development of molecular resources for species closely related to G. max provides information into the evolution of genomes within the genus Glycine and tools to identify genes within perennial wild relatives of cultivated soybean that could be beneficial to soybean production.
Collapse
Affiliation(s)
- Sungyul Chang
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
| | - Carrie S. Thurber
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
| | - Patrick J. Brown
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
| | - Glen L. Hartman
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
- United States Department of Agriculture, Agricultural Research Service, Urbana, Illinois, United States of America
| | - Kris N. Lambert
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
| | - Leslie L. Domier
- Department of Crop Sciences, University of Illinois, Urbana, Illinois, United States of America
- United States Department of Agriculture, Agricultural Research Service, Urbana, Illinois, United States of America
| |
Collapse
|
34
|
Li MJ, Kim JK, Seo EY, Hong SM, Hwang EI, Moon JK, Domier LL, Hammond J, Youn YN, Lim HS. Sequence variability in the HC-Pro coding regions of Korean soybean mosaic virus isolates is associated with differences in RNA silencing suppression. Arch Virol 2014; 159:1373-83. [PMID: 24378822 DOI: 10.1007/s00705-013-1964-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2013] [Accepted: 12/17/2013] [Indexed: 11/25/2022]
Abstract
Soybean mosaic virus (SMV), a member of the family Potyviridae, is an important viral pathogen affecting soybean production in Korea. Variations in helper component proteinase (HC-Pro) sequences and the pathogenicity of SMV samples from seven Korean provinces were compared with those of previously characterized SMV isolates from China, Korea and the United States. Phylogenetic analysis separated 16 new Korean SMV isolates into two groups. Fourteen of the new Korean SMV samples belonged to group II and were very similar to U.S. strain SMV G7 and Chinese isolate C14. One isolate in group II, A297-13, differed at three amino acid positions (L54F, N286D, D369N) in the HC-Pro coding sequence from severe isolates and SMV 413, showed very weak silencing suppressor activity, and produced only mild symptoms in soybean. To test the role of each amino acid substitution in RNA silencing and viral RNA accumulation, a series of point mutations was constructed. Substitution of N for D at position 286 in HC-Pro of SMV A297-12 significantly reduced silencing suppression activity. When the mutant HC-Pro of A297-13 was introduced into an infectious clone of SMV 413, accumulation of viral RNA was reduced to less than 3 % of the level of SMV 413 containing HC-Pro of A297-12 at 10 days post-inoculation (dpi) but increased to 40 % of SMV 413(HC-Pro A297-12) at 40 dpi. At 50 dpi RNA accumulation of SMV 413(HC-Pro A297-13) was similar to that of SMV 413(HC-Pro A297-12). However, at 50 dpi, the D at position 286 of HC-Pro in SMV 413(HC-Pro A297-13) was found to have reverted to N. The results showed that 1) a naturally occurring mutation in HC-Pro significantly reduced silencing suppression activity and accumulation of transgene and viral RNAs, and 2) that there was strong selection for revision to wild type when the mutation was introduced into an infectious clone of SMV.
Collapse
Affiliation(s)
- Mei-Jia Li
- Department of Applied Biology, Chungnam National University, Daejeon, 305-764, Korea
| | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Abstract
Heterodera glycines, the soybean cyst nematode (SCN), is a subterranean root pathogen that causes the most damaging disease of soybean in the USA. A novel nematode virus genome, soybean cyst nematode virus 5 (SbCNV-5), was identified in RNA sequencing data from SCN eggs and second-stage juveniles. The SbCNV-5 RNA-dependent RNA polymerase and RNA helicase domains had homology to pestiviruses in the family Flaviviridae, suggesting that SbCNV-5 is a positive-polarity ssRNA virus. SbCNV-5 RNA was present in all nematode developmental stages, indicating a transovarial mode of transmission, but is also potentially sexually transmitted via the male. SbCNV-5 was common in SCN laboratory cultures and in nematode populations isolated from the field. Transmission electron microscopy of sections from a female SCN showed virus particles budding from the endoplasmic reticulum and in endosomes. The size of the viral genome was 19 191 nt, which makes it much larger than other known pestiviruses. Additionally, the presence of a methyltransferase in the SbCNV-5 genome is atypical for a pestivirus. When cDNA sequences were mapped to the genome of SbCNV-5, a disproportionate number aligned to the 3' NTR, suggesting that SbCNV-5 produces a subgenomic RNA, which was confirmed by RNA blot analysis. As subgenomic RNAs and methyltransferases do not occur in pestiviruses, we conclude that SbCNV-5 is a new flavivirus infecting SCNs.
Collapse
Affiliation(s)
- Sadia Bekal
- Department of Agricultural and Biological Engineering, University of Illinois, Urbana, IL 61810, USA
| | - Leslie L Domier
- US Department of Agriculture, Agricultural Research Service, University of Illinois, Urbana, IL 61801, USA
- Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| | - Biruk Gonfa
- Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| | - Nancy K McCoppin
- US Department of Agriculture, Agricultural Research Service, University of Illinois, Urbana, IL 61801, USA
- Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| | - Kris N Lambert
- Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| | - Kaustubh Bhalerao
- Department of Agricultural and Biological Engineering, University of Illinois, Urbana, IL 61810, USA
| |
Collapse
|
36
|
Marvelli RA, Hobbs HA, Li S, McCoppin NK, Domier LL, Hartman GL, Eastburn DM. Identification of novel double-stranded RNA mycoviruses of Fusarium virguliforme and evidence of their effects on virulence. Arch Virol 2013; 159:349-52. [PMID: 24009061 DOI: 10.1007/s00705-013-1760-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Accepted: 05/04/2013] [Indexed: 10/26/2022]
Abstract
Virulence and double-stranded RNA (dsRNA) profiles of 44 isolates of Fusarium virguliforme were compared. When grouped according to dsRNA profiles, isolates with large dsRNAs were significantly (P≤0.05) less virulent than isolates without dsRNAs. High-throughput sequence analysis of total RNA prepared from cultures with large dsRNAs identified two novel RNA viruses with genome sequences of approximately 9.3 kbp, which were named Fusarium virguliforme dsRNA mycovirus 1 and Fusarium virguliforme dsRNA mycovirus 2. The new viruses were most closely related to a group of unclassified viruses that included viruses of F. graminearum and Phlebiopsis gigantea and are related to members of the family Totiviridae.
Collapse
Affiliation(s)
- Rita A Marvelli
- Department of Crop Sciences, University of Illinois, Urbana, IL, USA
| | | | | | | | | | | | | |
Collapse
|
37
|
Abstract
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.
Collapse
Affiliation(s)
- Sushma Jossey
- Department of Crop Sciences, University of Illinois, Urbana 61801, USA
| | | | | |
Collapse
|
38
|
Chang S, Hartman GL, Singh RJ, Lambert KN, Hobbs HA, Domier LL. Identification of high-quality single-nucleotide polymorphisms in Glycine latifolia using a heterologous reference genome sequence. Theor Appl Genet 2013; 126:1627-38. [PMID: 23494395 DOI: 10.1007/s00122-013-2079-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Accepted: 02/23/2013] [Indexed: 06/01/2023]
Abstract
Like many widely cultivated crops, soybean [Glycine max (L.) Merr.] has a relatively narrow genetic base, while its perennial distant relatives in the subgenus Glycine Willd. are more genetically diverse and display desirable traits not present in cultivated soybean. To identify single-nucleotide polymorphisms (SNPs) between a pair of G. latifolia accessions that were resistant or susceptible to Sclerotinia sclerotiorum (Lib.) de Bary, reduced-representations of DNAs from each accession were sequenced. Approximately 30 % of the 36 million 100-nt reads produced from each of the two G. latifolia accessions aligned primarily to gene-rich euchromatic regions on the distal arms of G. max chromosomes. Because a genome sequence was not available for G. latifolia, the G. max genome sequence was used as a reference to identify 9,303 G. latifolia SNPs that aligned to unique positions in the G. max genome with at least 98 % identity and no insertions and deletions. To validate a subset of the SNPs, nine TaqMan and 384 GoldenGate allele-specific G. latifolia SNP assays were designed and analyzed in F2 G. latifolia populations derived from G. latifolia plant introductions (PI) 559298 and 559300. All nine TaqMan markers and 91 % of the 291 polymorphic GoldenGate markers segregated in a 1:2:1 ratio. Genetic linkage maps were assembled for G. latifolia, nine of which were uninterrupted and nearly collinear with the homoeologous G. max chromosomes. These results made use of a heterologous reference genome sequence to identify more than 9,000 informative high-quality SNPs for G. latifolia, a subset of which was used to generate the first genetic maps for any perennial Glycine species.
Collapse
Affiliation(s)
- Sungyul Chang
- Department of Crop Sciences, University of Illinois, Urbana, IL 61801, USA
| | | | | | | | | | | |
Collapse
|
39
|
Abstract
Soybean vein necrosis-associated virus (SVNaV), a newly discovered tospovirus that infects soybean, was first described as widespread in a number of southern and midwestern states, but so far has not been reported in Ohio (1). Here we describe its occurrence in six different soybean leaf samples collected from five Ohio counties: Champaign, Hardin, Sandusky, Seneca, and Wyandot. Specifically, SVNaV was initially identified through a comprehensive survey during the summer of 2011 that used high throughput sequencing to detect genome sequences of viruses present in a pool of 110 field samples collected from 24 Ohio counties. Three assembled contigs, with sizes of 7,551, 4,937, and 1,554 nucleotides (nt) respectively, share 99% nt identity with the three SVNaV genomic RNAs (L, M, and S), and thus constitute partial sequences of the SVNaV Ohio (OH) isolate. The distribution of this virus was further delineated using reverse transcription (RT)-PCR with primers SVNaV-1734F (5' CCATCTTTCTTTCCAGGCATTTCA 3') and SVNaV-S-2421R (5' GATTCAAGTTCAGCGAGTTCTACAA 3'). All plants from which the SVNaV-positive samples were collected showed typical virus symptoms, including systemic mosaic accompanied by leaf deformation, chlorosis, vein necrosis, and rusty spots on mature leaves. These symptoms are largely consistent with the previous report by Zhou and colleagues (1). Intriguingly, further analysis with RT-PCR revealed that five out of the six SVNaV-positive samples also contained a second virus, with Bean pod mottle virus found in four of the samples, and Tobacco ringspot virus in the fifth. Since it is not yet possible to initiate SVNaV infection mechanically, it is difficult to determine whether the co-infecting viruses contribute to the disease symptoms and yield losses. It should be noted that SVNaV may have been in Ohio for some time since symptoms similar to those reported by Zhou and colleagues (1) have been observed in soybean fields of this state since at least 2009. Furthermore, while in 2011 these symptoms were observed in only a few fields, as reflected by the detection of SVNaV in six of the 110 samples, the 2012 growing season has seen a big jump of symptomatic plants and fields. The current report confirms its presence with molecular evidence and lays the groundwork for further assessment of its impact on soybean production. Reference: (1) J. Zhou et al. Virus Genes 43:289, 2011.
Collapse
Affiliation(s)
- J Han
- Department of Plant Pathology, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, 44691
| | - L L Domier
- United States Department of Agriculture, Agricultural Research Service, Department of Crop Sciences, University of Illinois, Urbana, 61810
| | - A E Dorrance
- Department of Plant Pathology, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, 44691
| | - F Qu
- Department of Plant Pathology, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, 44691
| |
Collapse
|
40
|
Abstract
Soybean (Glycine max L.) is the major oilseed crop in North Dakota, with production concentrated in the eastern half of the state. Only one virus, Soybean mosaic virus, has been reported from soybean in North Dakota (4). In July and August of 2010, 200 soybean fields from 25 counties were surveyed for Alfalfa mosaic virus (AMV) and Soybean dwarf virus (SbDV). AMV and SbDV have been detected infecting soybean in multiple Midwestern states and are reported to reduce yields in soybean (1,3). Each field was sampled with a grid pattern across the area with at least 8 km between fields. From each field, leaves were collected from 20 plants without regard for symptoms along a transect of approximately 170 m. Leaves from each field were bulked and sap was extracted in phosphate buffer and stored at -80°C until tested using double-antibody sandwich (DAS)-ELISA with positive controls and reagents and protocols from Agdia Inc. (Elkhart, IN). Using DAS-ELISA, AMV was detected in eight of the 200 soybean fields. For sequence-based virus detection, total RNA was extracted from all field samples using a Qiagen RNeasy Plant Mini Kit (Germantown, MD), pooled, depleted of ribosomal RNA (RiboZero Epicentre, Madison, WI), reverse transcribed, sequenced using an Illumina HiSeq2000 (San Diego, CA), and compared to all available viral amino acid and nucleotide sequences. The analysis detected AMV and SbDV sequences in the pool of 200 fields. The presence of AMV and SbDV was confirmed by quantitative real-time reverse transcription (qRT)-PCR (1,3). For AMV, total RNA extracted from bulked leaves from each of the 200 fields was tested using AMVspecific primers (5'-ATGCTACCCAGGCATGTATATTT-3' and 5'-GCTGCATCTTTCGCCAGAA-3') and a FAM-labeled minor-groove binding TaqMan probe (5'-TGGACGTTACCCCCGGA-3'). One field sample from Cass county positive for AMV by ELISA was also positive for AMV by qRT-PCR, confirming the presence of AMV in the field sample. For SbDV, an RNA pool representing all 200 fields, subpools, and individual field samples was analyzed by qRT-PCR (1) and DAS-ELISA. One field sample from Grand Forks County tested positive for SbDV by qRT-PCR and DAS-ELISA, confirming the presence of SbDV in the field sample. Because leaf samples were collected and pooled prior to analysis, the symptom phenotypes of individual field plants could not be correlated with positive ELISA or qRT-PCR results. AMV was reported by the American Phytopathological Society Virus Working Group (2007 to 2008) to be widely prevalent in North Dakota, but we found no peer-reviewed reports of verified AMV identification on any crop in the state. To our knowledge, this is the first confirmed report of AMV and SbDV infecting soybean in North Dakota. Serious infestations by the soybean aphid, Aphis glycines, requiring chemical control, have occurred in recent years in North Dakota. Because A. glycines is a vector for both viruses (1,2), the distribution, incidence, and agronomic impact of AMV and SbDV could be affected in years when A. glycines infestations are high. In addition, AMV is seedborne in soybean and may cause seed mottling, a concern for the food-grade soybean industry where production is primarily for export. References: (1) V. D. Damsteegt et al. Plant Dis. 95:945, 2011 (2) J. H. Hill et al. Plant Dis. 85:561, 2001. (3) H. A. Hobbs et al. Plant Health Progress doi:10.1094/PHP-2010-0827-01-BR, 2010. (4) B. D. Nelson and L. L. Domier. Plant Dis. 93:760, 2009.
Collapse
Affiliation(s)
- H A Hobbs
- Department of Crop Sciences, University of Illinois, Urbana 61801
| | - L L Domier
- USDA-ARS, Department of Crop Sciences, University of Illinois, Urbana 61801
| | - B D Nelson
- Department of Plant Pathology, North Dakota State University, Fargo 58108
| |
Collapse
|
41
|
Han J, Domier LL, Dorrance A, Qu F. Complete genome sequence of a novel pararetrovirus isolated from soybean. J Virol 2012; 86:9555. [PMID: 22879623 PMCID: PMC3416149 DOI: 10.1128/jvi.01558-12] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 06/21/2012] [Indexed: 11/20/2022] Open
Abstract
We report the complete genome sequence of soybean Putnam virus (SPuV), a new pararetrovirus isolated from a soybean field in Putnam County, OH. Comparison of SPuV with other plant-infecting pararetroviruses places it in the genus Caulimovirus of the family Caulimoviridae.
Collapse
Affiliation(s)
- Junping Han
- Department of Plant Pathology, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio, USA
| | - Leslie L. Domier
- United States Department of Agriculture, Agricultural Research Service, Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA
| | - Anne Dorrance
- Department of Plant Pathology, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio, USA
| | - Feng Qu
- Department of Plant Pathology, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster, Ohio, USA
| |
Collapse
|
42
|
McClellan MS, Domier LL, Bailey RC. Label-free virus detection using silicon photonic microring resonators. Biosens Bioelectron 2012; 31:388-92. [PMID: 22138465 PMCID: PMC3729447 DOI: 10.1016/j.bios.2011.10.056] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2011] [Revised: 10/19/2011] [Accepted: 10/25/2011] [Indexed: 11/28/2022]
Abstract
Viruses represent a continual threat to humans through a number of mechanisms, which include disease, bioterrorism, and destruction of both plant and animal food resources. Many contemporary techniques used for the detection of viruses and viral infections suffer from limitations such as the need for extensive sample preparation or the lengthy window between infection and measurable immune response, for serological methods. In order to develop a method that is fast, cost-effective, and features reduced sample preparation compared to many other virus detection methods, we report the application of silicon photonic microring resonators for the direct, label-free detection of intact viruses in both purified samples as well as in a complex, real-world analytical matrix. As a model system, we demonstrate the quantitative detection of Bean pod mottle virus, a pathogen of great agricultural importance, with a limit of detection of 10 ng/mL. By simply grinding a small amount of leaf sample in buffer with a mortar and pestle, infected leaves can be identified over a healthy control with a total analysis time of less than 45 min. Given the inherent scalability and multiplexing capability of the semiconductor-based technology, we feel that silicon photonic microring resonators are well-positioned as a promising analytical tool for a number of viral detection applications.
Collapse
Affiliation(s)
- Melinda S McClellan
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Avenue, Urbana, IL 61801, USA
| | | | | |
Collapse
|
43
|
Nam M, Koh S, Kim SU, Domier LL, Jeon JH, Kim HG, Lee SH, Bent AF, Moon JS. Arabidopsis TTR1 causes LRR-dependent lethal systemic necrosis, rather than systemic acquired resistance, to Tobacco ringspot virus. Mol Cells 2011; 32:421-9. [PMID: 22057987 PMCID: PMC3887690 DOI: 10.1007/s10059-011-0101-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2011] [Revised: 09/03/2011] [Accepted: 09/09/2011] [Indexed: 11/30/2022] Open
Abstract
Most Arabidopsis ecotypes display tolerance to the Tobacco ringspot virus (TRSV), but a subset of Arabidopsis ecotypes, including Estland (Est), develop lethal systemic necrosis (LSN), which differs from the localized hypersensitive responses (HRs) or systemic acquired resistance (SAR) characteristic of incompatible reactions. Neither viral replication nor the systemic movement of TRSV was restricted in tolerant or sensitive Arabidopsis ecotypes; therefore, the LSN phenotype shown in the sensitive ecotypes might not be due to viral accumulation. In the present study, we identified the Est TTR1 gene (tolerance to Tobacco ringspot virus 1) encoding a TIR-NBS-LRR protein that controls the ecotype-dependent tolerant/sensitive phenotypes by a map-based cloning method. The tolerant Col-0 ecotype Arabidopsis transformed with the sensitive Est TTR1 allele developed an LSN phenotype upon TRSV infection, suggesting that the Est TTR1 allele is dominant over the tolerant ttr1 allele of Col-0. Multiple sequence alignments of 10 tolerant ecotypes from those of eight sensitive ecotypes showed that 10 LRR amino acid polymorphisms were consistently distributed across the TTR1/ttr1 alleles. Site-directed mutagenesis of these amino acids in the LRR region revealed that two sites, L956S and K1124Q, completely abolished the LSN phenotype. VIGS study revealed that TTR1 is dependent on SGT1, rather than EDS1. The LSN phenotype by TTR1 was shown to be transferred to Nicotiana benthamiana, demonstrating functional conservation of TTR1 across plant families, which are involved in SGT-dependent defense responses, rather than EDS1-dependent signaling pathways.
Collapse
Affiliation(s)
- Moon Nam
- Green Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Korea
- Present address: Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Korea
- These authors contributed equally to this work
| | - Serry Koh
- Green Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Korea
- These authors contributed equally to this work
| | - Sung Uk Kim
- Green Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Korea
| | - Leslie L. Domier
- Department of Crop Sciences, USDA-ARS, Soybean/Maize Germplasm, Pathology, and Genetics Research Unit, Urbana, IL 61801, USA
| | - Jae Heung Jeon
- Green Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Korea
| | - Hong Gi Kim
- Department of Agricultural Biology, Chungnam National University, Daejeon 305-764, Korea
| | - Su-Heon Lee
- Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Suwon 441-707, Korea
| | - Andrew F. Bent
- Department of Plant Pathology, University of Wisconsin, Madison, Wisconsin 53706, USA
| | - Jae Sun Moon
- Green Bio-materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-333, Korea
| |
Collapse
|
44
|
Damsteegt VD, Stone AL, Kuhlmann M, Gildow FE, Domier LL, Sherman DJ, Tian B, Schneider WL. Acquisition and Transmissibility of U.S. Soybean dwarf virus Isolates by the Soybean Aphid, Aphis glycines. Plant Dis 2011; 95:945-950. [PMID: 30732111 DOI: 10.1094/pdis-10-10-0726] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Soybean dwarf virus (SbDV) exists as several distinct strains based on symptomatology, vector specificity, and host range. Originally characterized Japanese isolates of SbDV were specifically transmitted by Aulacorthum solani. More recently, additional Japanese isolates and endemic U.S. isolates have been shown to be transmitted by several different aphid species. The soybean aphid, Aphis glycines, the only aphid that colonizes soybean, has been shown to be a very inefficient vector of some SbDV isolates from Japan and the United States. Transmission experiments have shown that the soybean aphid can transmit certain isolates of SbDV from soybean to soybean and clover species and from clover to clover and soybean with long acquisition and inoculation access periods. Although transmission of SbDV by the soybean aphid is very inefficient, the large soybean aphid populations that develop on soybean may have epidemiological potential to produce serious SbDV-induced yield losses.
Collapse
Affiliation(s)
- V D Damsteegt
- Foreign Disease-Weed Science Research Unit, 1301 Ditto Ave., Fort Detrick, MD
| | - A L Stone
- Foreign Disease-Weed Science Research Unit, 1301 Ditto Ave., Fort Detrick, MD
| | - M Kuhlmann
- Cell Biology & Molecular Genetics, UMD, College Park, MD
| | - F E Gildow
- Department of Plant Pathology, Pennsylvania State University, State College, PA
| | - L L Domier
- USDA-ARS, University of Illinois, Champaign, IL
| | - D J Sherman
- Foreign Disease-Weed Science Research Unit, 1301 Ditto Ave., Fort Detrick, MD
| | - B Tian
- Department of Plant Pathology, Pennsylvania State University, State College, PA
| | - W L Schneider
- Foreign Disease-Weed Science Research Unit, 1301 Ditto Ave., Fort Detrick, MD
| |
Collapse
|
45
|
Domier LL, Hobbs HA, McCoppin NK, Bowen CR, Steinlage TA, Chang S, Wang Y, Hartman GL. Multiple loci condition seed transmission of soybean mosaic virus (SMV) and SMV-induced seed coat mottling in soybean. Phytopathology 2011; 101:750-6. [PMID: 21561316 DOI: 10.1094/phyto-09-10-0239] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
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 F(2) 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.
Collapse
Affiliation(s)
- Leslie L Domier
- United States Department of Agriculture-Agricultural Research Service and Department of Crop Sciences, University of Illinois, Urbana 61801.
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Abstract
Nematodes are the most abundant multicellular animals on earth, yet little is known about their natural viral pathogens. To date, only two nematode virus genomes have been reported. Consequently, nematode viruses have been overlooked as important biotic factors in the study of nematode ecology. Here, we show that one plant parasitic nematode species, Heterodera glycines, the soybean cyst nematode (SCN), harbours four different RNA viruses. The nematode virus genomes were discovered in the SCN transcriptome after high-throughput sequencing and assembly. All four viruses have negative-sense RNA genomes, and are distantly related to nyaviruses and bornaviruses, rhabdoviruses, bunyaviruses and tenuiviruses. Some members of these families replicate in and are vectored by insects, and can cause significant diseases in animals and plants. The novel viral sequences were detected in both eggs and the second juvenile stage of SCN, suggesting that these viruses are transmitted vertically. While there was no evidence of integration of viral sequences into the nematode genome, we indeed detected transcripts from these viruses by using quantitative PCR. These data are the first finding of virus genomes in parasitic nematodes. This discovery highlights the need for further exploration for nematode viruses in all tropic groups of these diverse and abundant animals, to determine how the presence of these viruses affects the fitness of the nematode, strategies of viral transmission and mechanisms of viral pathogenesis.
Collapse
Affiliation(s)
- Sadia Bekal
- Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| | - Leslie L Domier
- United States Department of Agriculture, Agricultural Research Service, Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| | - Terry L Niblack
- Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| | - Kris N Lambert
- Department of Crop Sciences, University of Illinois, Urbana, IL 61810, USA
| |
Collapse
|
47
|
Agindotan BO, Ahonsi MO, Domier LL, Gray ME, Bradley CA. Application of sequence-independent amplification (SIA) for the identification of RNA viruses in bioenergy crops. J Virol Methods 2010; 169:119-28. [PMID: 20638415 DOI: 10.1016/j.jviromet.2010.07.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2009] [Revised: 07/06/2010] [Accepted: 07/12/2010] [Indexed: 02/05/2023]
Abstract
Miscanthus x giganteus, energycane, and Panicum virgatum (switchgrass) are three potential biomass crops being evaluated for commercial cellulosic ethanol production. Viral diseases are potentially significant threats to these crops. Therefore, identification of viruses infecting these bioenergy crops is important for quarantine purposes, virus resistance breeding, and production of virus-free planting materials. The application is described of sequence-independent amplification, for the identification of RNA viruses in bioenergy crops. The method involves virus partial purification from a small amount of infected leaf tissue (miniprep), extraction of viral RNA, amplification of randomly primed cDNAs, cloning, sequencing, and BLAST searches for sequence homology in the GenBank. This method has distinct advantage over other virus characterization techniques in that it does not require reagent specific to target viruses. Using this method, a possible new species was identified in the genus Marafivirus in switchgrass related to Maize rayado fino virus, its closest relative currently in GenBank. Sugarcane mosaic virus (SCMV), genus Potyvirus, was identified in M.xgiganteus, energycane, corn (Zea mays), and switchgrass. Other viruses identified were: Maize dwarf mosaic virus (MDMV), genus Potyvirus, in johnsongrass (Sorghum halepense); Soil borne wheat mosaic virus (SBWMV), genus Furovirus, in wheat (Triticum aestivum); and Bean pod mottle virus (BPMV), genus Comovirus, in soybean (Glycine max). The method was as sensitive as conventional RT-PCR. This is the first report of a Marafivirus infecting switchgrass, and SCMV infecting both energycane and M. x giganteus.
Collapse
Affiliation(s)
- Bright O Agindotan
- Energy Biosciences Institute, University of Illinois, 1206 West Gregory Drive, Urbana, IL 61801-3838, USA.
| | | | | | | | | |
Collapse
|
48
|
Lim HS, Vaira AM, Domier LL, Lee SC, Kim HG, Hammond J. Efficiency of VIGS and gene expression in a novel bipartite potexvirus vector delivery system as a function of strength of TGB1 silencing suppression. Virology 2010; 402:149-63. [PMID: 20381827 DOI: 10.1016/j.virol.2010.03.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2010] [Revised: 02/07/2010] [Accepted: 03/14/2010] [Indexed: 11/27/2022]
Abstract
We have developed plant virus-based vectors for virus-induced gene silencing (VIGS) and protein expression, based on Alternanthera mosaic virus (AltMV), for infection of a wide range of host plants including Nicotiana benthamiana and Arabidopsis thaliana by either mechanical inoculation of in vitro transcripts or via agroinfiltration. In vivo transcripts produced by co-agroinfiltration of bacteriophage T7 RNA polymerase resulted in T7-driven AltMV infection from a binary vector in the absence of the Cauliflower mosaic virus 35S promoter. An artificial bipartite viral vector delivery system was created by separating the AltMV RNA-dependent RNA polymerase and Triple Gene Block (TGB)123-Coat protein (CP) coding regions into two constructs each bearing the AltMV 5' and 3' non-coding regions, which recombined in planta to generate a full-length AltMV genome. Substitution of TGB1 L(88)P, and equivalent changes in other potexvirus TGB1 proteins, affected RNA silencing suppression efficacy and suitability of the vectors from protein expression to VIGS.
Collapse
Affiliation(s)
- Hyoun-Sub Lim
- USDA-ARS, Plant Sciences Institute, Molecular Plant Pathology Laboratory, 10300 Baltimore Avenue, Beltsville, MD 20705, USA.
| | | | | | | | | | | |
Collapse
|
49
|
Lim HS, Vaira AM, Reinsel MD, Bae H, Bailey BA, Domier LL, Hammond J. Pathogenicity of Alternanthera mosaic virus is affected by determinants in RNA-dependent RNA polymerase and by reduced efficacy of silencing suppression in a movement-competent TGB1. J Gen Virol 2010; 91:277-87. [PMID: 20019006 DOI: 10.1099/vir.0.014977-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Four biologically active cDNA clones were derived from the Alternanthera mosaic virus (AltMV; genus Potexvirus) isolate, AltMV-SP, which differ in symptoms in infected Nicotiana benthamiana plants. Two clones induced necrosis and plant death; a mixture of all four clones induced milder symptoms than AltMV-SP. Replication of all clones was enhanced by a minimum of fourfold at 15 degrees C. A mixture of clones 4-7 (severe) and 3-1 (mild) was indistinguishable from AltMV-SP, but the ratio of 4-7 to 3-1 differed at 25 and 15 degrees C. RNA copy numbers of mixed infections were always below those of 4-7 alone. Determinants of symptom severity were identified in both Pol and TGB1; the mildest (4-1) and most severe (3-7) clones differed at three residues in the 'core' Pol domain [R(1110)P, K(1121)R, R(1255)K] and one [S(1535)P] in the C-terminal Pol domain of RNA-dependent RNA polymerase, and one in TGB1 [P(88)L]. Pol [P(1110),R(1121),K(1255)]+TGB1(L(88))] always induced systemic necrosis at 15 degrees C. Gene exchanges of Pol and TGB1 each affected replication and symptom expression, with TGB1(P(88)) significantly reducing silencing suppression. The difference in silencing suppression between TGB1(P(88)) and TGB1(L(88)) was confirmed by an agroinfiltration assay. Further, co-expression of TGB1(P(88)) and TGB1(L(88)) resulted in interference in the suppression of silencing by TGB1(L(88)). Yeast two-hybrid analysis confirmed that TGB1(P(88)) and TGB1(L(88)) interact. These results identify a TGB1 residue that significantly affects replication and silencing suppression, but maintains full movement functions.
Collapse
Affiliation(s)
- Hyoun-Sub Lim
- USDA-ARS, USNA, Floral and Nursery Plants Research Unit, Beltsville, MD 20705, USA
| | | | | | | | | | | | | |
Collapse
|
50
|
Abstract
Soybean yellow mottle mosaic virus (SYMMV) is a soybean-infecting virus recently discovered in Korea that initially induces bright yellow mosaic on leaves followed by stunting and reduced growth of older leaves (1). Nucleotide sequence analysis of genomic RNA of the Korean SYMMV isolate suggested that the virus is a new member of the genus Carmovirus in the family Tombusviridae. To determine whether SYMMV is present in the United States, single leaflets were collected without regard for symptoms from 7 to 10 plants in each of 136 plots in August 2008 from a research field in Stoneville, MS that contained 16 plant introductions (including five from Korea) and 'Williams 82'. Samples were grouped into 10 pools of 100 leaves from which total RNA was extracted with the Qiagen RNeasy Plant Mini Kit (Germantown, MD), reverse transcribed, and amplified with SuperScript III Platinum SYBR Green One-Step Quantitative Real-time Reverse Transcriptase-PCR Kit (Invitrogen, Carlsbad, CA) and two pairs of oligonucleotide primers (5'-CGTCTGCCAGGGTTTAATACTA-3', and 5'-GATTAGCATGTCAGGGTGGTCG-3'; and 5'-ACTGAGTCCCCTGCTTAT-3' and 5'-CATCACTAGCGTCYGGATCA-3') that were designed from regions conserved between SYMMV and Cowpea mottle virus (CPMoV; a related and seed-transmitted carmovirus). Six 100-leaflet pools were positive with both primer sets and four pools were negative with both primer sets. Total RNA extracted from one positive pool was reverse transcribed using SuperScript II reverse transcriptase and a primer complementary to nt 4,000 to 4,009 of the SYMMV genome and amplified using iProof DNA polymerase (Bio-Rad, Hercules, CA) as two overlapping DNA fragments using primers corresponding to nt 1 to 21 and complementary to nt 3,483 to 3,508 and corresponding to nt 3,366 to 3,391 and complementary to nt 4,000 to 4,009. DNA fragments were sequenced using a BigDye Terminator Cycle Sequencing Kit and ABI 3730XL capillary sequencers (Applied Biosystems, Foster City, CA). The 4,009-nt sequence of the Mississippi SYMMV isolate (GenBank Accession No. FJ707484) was 96% identical to the Korean SYMMV isolate and 65% identical to CPMoV. Because of the sampling techniques used, it was not possible to associate SYMMV-positive plants with disease symptoms in Mississippi. To our knowledge, this is the first report of SYMMV in North America. Reference: (1) M. Nam et al. Online publication. doi:10.1077/s00705-009-0480. Arch. Virol., 2009.
Collapse
Affiliation(s)
- S Li
- United States Department of Agriculture, Agricultural Research Service (USDA-ARS), Crop Genetics and Production Research Unit, Stoneville, MS
| | - J S Moon
- Plant Genome Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Korea
| | - S H Lee
- Department of Agricultural Biology, National Institute of Agricultural Science and Technology, Suwon, Korea
| | | |
Collapse
|