Advances on molecular studies of the interaction soybean - Asian rust

Morales, Aguida Maria Alves Pereira; Borém, Aluízio; Graham, Michelle A.; Abdelnoor, R. V.

doi:10.1590/s1984-70332012000100001

Cited by 13 publications

(9 citation statements)

References 37 publications

(34 reference statements)

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“…The genes have been mapped on the various soybean chromosomes; Rpp1 is located on chromosome 18, Rpp2 on 16, Rpp3 on 6, Rpp4 on 18, Rpp5 on 3 and Rpp6 on 18 (Hyten et al, 2007(Hyten et al, , 2009Garcia et al, 2008;Silva et al, 2008). Significant progress has been made to characterize these genes using virus-induced gene silencing (VIGS), in which soybean is challenged with recombinant Bean pod mottle virus (BPMV) targeting endogenous genes (Pandey et al, 2011;Morales et al, 2012).…”

Section: Pathogenic Variation Of P Pachyrhizimentioning

confidence: 99%

Soybean production in eastern and southern Africa and threat of yield loss due to soybean rust caused byPhakopsora pachyrhizi

Murithi

Beed²,

Tukamuhabwa

et al. 2015

Plant Pathology

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Soybean is a major source of oil and proteins worldwide. The demand for soybean has increased in Africa, driven by the growing feed industry for poultry, aquaculture and home consumption in the form of processed milk, baked beans and for blending with maize and wheat flour. Soybean, in addition to being a major source of cooking oil, is also used in other industrial processes such as in the production of paints and candle wax. The demand for soybean in Africa so far outweighs the supply, hence the deficit is mainly covered through imports of soybean products such as soybean meal. The area under soybean production has increased in response to the growing demand, a trend that is expected to continue in the coming years. As the production area increases, diseases and insect pests, declining soil fertility and other abiotic factors pose a major challenge. Soybean rust disease, caused by the fungus Phakopsora pachyrhizi, presents one of the major threats to soybean production in Africa due to its rapid spread as a result of the ease by which its spores are dispersed by the wind. Disease control by introducing resistant soybean varieties has been difficult due to the presence of different populations of the fungus that vary in pathogenicity, virulence and genetic composition. Improved understanding of the dynamics of rust ecology, epidemiology and population genetics will enhance the effectiveness of targeted interventions that, in turn, will safeguard soybean productivity.

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Section: Pathogenic Variation Of P Pachyrhizimentioning

confidence: 99%

Soybean production in eastern and southern Africa and threat of yield loss due to soybean rust caused byPhakopsora pachyrhizi

Murithi

Beed²,

Tukamuhabwa

et al. 2015

Plant Pathology

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“…P. pachyrhizi reproduction is predominantly, if not exclusively, asexual ( Anderson et al , 2008 ). Once in contact with a leaf surface, the urediniospores, an asexual form the spores, germinate to initiate the rapidly progressing infection process, and new urediniospores are formed and released within five to eight days through sporulation structures (uredinias), initiating a new cycle of infection ( Zambolin, 2006 ; Morales et al , 2012 ). As an obligatory biotrophic organism, the development of P. pachyrhizi occurs only in living tissue, hampering the study of fungal biology ( Voegele et al , 2009 ).…”

Section: Introductionmentioning

confidence: 99%

New insights into Phakopsora pachyrhizi infection based on transcriptome analysis in planta

et al. 2018

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Asian soybean rust (ASR) is one of the most destructive diseases affecting soybeans. The causative agent of ASR, the fungus Phakopsora pachyrhizi, presents characteristics that make it difficult to study in vitro, limiting our knowledge of plant-pathogen dynamics. Therefore, this work used leaf lesion laser microdissection associated with deep sequencing to determine the pathogen transcriptome during compatible and incompatible interactions with soybean. The 36,350 generated unisequences provided an overview of the main genes and biological pathways that were active in the fungus during the infection cycle. We also identified the most expressed transcripts, including sequences similar to other fungal virulence and signaling proteins. Enriched P. pachyrhizi transcripts in the resistant (PI561356) soybean genotype were related to extracellular matrix organization and metabolic signaling pathways and, among infection structures, in amino acid metabolism and intracellular transport. Unisequences were further grouped into gene families along predicted sequences from 15 other fungi and oomycetes, including rust fungi, allowing the identification of conserved multigenic families, as well as being specific to P. pachyrhizi. The results revealed important biological processes observed in P. pachyrhizi, contributing with information related to fungal biology and, consequently, a better understanding of ASR.

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“…Presence of host, along with the presence of ASR spores and favorable environmental conditions are necessary to the epidemic development of P. pachyrhizi (YORINORI et al, 2005). Thus, the reduction of inoculums by a sanitary empty period is important for the prevention and management of ASR (MORALES et al, 2012). Currently, in almost all soybean-producing areas of Brazil, legislation requires periods of at least 60 days with the absence of soybean plants in fields.…”

Section: Management Of Insects and Diseasesmentioning

confidence: 99%

Genetic use restriction technologies and possible applications in the integrated pest management

Dalazen

Júnior

2016

Cienc. Rural

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Genetic use restriction technologies (GURTs) were developed to preserve the intellectual property of genetically modified crops (GM) and ensure the return of investments made by industry to obtain technology delivered through seeds. The aims of this review are to discuss the RESUMO As tecnologias genéticas de restrição de uso (GURTs) foram idealizadas a fim de preservar a propriedade intelectual de culturas geneticamente modificadas (GMs) e garantir o retorno dos investimentos feitos pelas empresas para a obtenção de tecnologias transmitidas via sementes. Os objetivos dessa revisão são discutir as GURTs e analisar suas possíveis aplicações no manejo integrado de pragas agrícolas. Existem duas classes de GURTs: a T-GURT (trait-based GURT), na qual as sementes produzidas são viáveis, porém as plantas da geração seguinte não expressam o caractere de interesse agronômico, e a V-GURT (variety-based GURT), na qual as plantas produzem sementes inviáveis. Contudo, além do propósito da proteção das sementes, o uso de GURTs poderia também ter outras aplicações na resolução de problemas agronômicos. Um dos mais importantes é o uso das GURTs como ferramenta para impedir

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Advances on molecular studies of the interaction soybean - Asian rust

Abstract: Advances on molecular studies of the interaction soybean -Asian rust

Cited by 13 publications

References 37 publications

Soybean production in eastern and southern Africa and threat of yield loss due to soybean rust caused byPhakopsora pachyrhizi

Soybean production in eastern and southern Africa and threat of yield loss due to soybean rust caused byPhakopsora pachyrhizi

New insights into Phakopsora pachyrhizi infection based on transcriptome analysis in planta

Genetic use restriction technologies and possible applications in the integrated pest management

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