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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
18/06/2015 |
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Data da última atualização: |
10/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
JORGE, V. R.; SILVA, M. R.; GUILLIN, E. A.; FREIRE, M. C. M.; SCHUSTER, I.; ALMEIDA, A. M. R.; OLIVEIRA, L. O. |
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Afiliação: |
UFV; UFV; INTA; UFV; COOPERATIVA CENTRAL DE PESQUISA AGRÍCOLA; ALVARO MANUEL RODRIGUES ALMEIDA, CNPSO; UFV. |
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Título: |
The origin and genetic diversity of the causal agent of Asian soybean rust, Phakopsora pachyrhizi, in South America. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Plant Pathology, [S. l.], v. 64, n. 3, p. 729-737, Jun. 2015. |
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ISSN: |
1365-3059 |
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DOI: |
10.1111/ppa.12300 |
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Idioma: |
Inglês |
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Conteúdo: |
A sequence-based approach was used to investigate molecular genetic variations in Phakopsora pachyrhizi, an obligate biotrophic pathogen that causes Asian soybean rust. In Argentina, the samples came from uredinium-bearing leaves taken from 11 soybean fields; in Brazil, the samples comprised urediniospores from leaves of 10 soybean genotypes that had been grown in three experimental stations during two growing seasons. PCR-based cloning techniques were used to generate DNA sequences for two gene regions and alignments were supplemented with data from GenBank. A total of 575 sequences for the internal transcribed spacer region (18 ribotypes) and 160 partial sequences for a housekeeping gene encoding ADP-ribosylation factor (10 haplotypes) were obtained. Ribotype accumulation curves predicted that about 20 bacterial clones would recover 5?6 ribotypes (c. 70?80% of the total molecular variation) per locality. The samples from the three experimental stations in Brazil displayed most (14 out of 16) ribotypes found worldwide; the lack of genetic structure and differentiation at a diverse geographic scale suggests that both local and distant sources provide airborne inoculum during disease establishment. Soybean genotypes with resistance genes for the Asian soybean rust did not decrease the molecular genetic variation of fungal populations. |
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Thesagro: |
Doença de planta; Ferrugem; Fungo; Phakopsora pachyrhizi; Soja. |
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Thesaurus NAL: |
Microbial growth; Plant diseases and disorders; Soybean rust. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02278naa a2200313 a 4500
001 2017998
005 2017-07-10
008 2015 bl uuuu u00u1 u #d
022 $a1365-3059
024 7 $a10.1111/ppa.12300$2DOI
100 1 $aJORGE, V. R.
245 $aThe origin and genetic diversity of the causal agent of Asian soybean rust, Phakopsora pachyrhizi, in South America.$h[electronic resource]
260 $c2015
520 $aA sequence-based approach was used to investigate molecular genetic variations in Phakopsora pachyrhizi, an obligate biotrophic pathogen that causes Asian soybean rust. In Argentina, the samples came from uredinium-bearing leaves taken from 11 soybean fields; in Brazil, the samples comprised urediniospores from leaves of 10 soybean genotypes that had been grown in three experimental stations during two growing seasons. PCR-based cloning techniques were used to generate DNA sequences for two gene regions and alignments were supplemented with data from GenBank. A total of 575 sequences for the internal transcribed spacer region (18 ribotypes) and 160 partial sequences for a housekeeping gene encoding ADP-ribosylation factor (10 haplotypes) were obtained. Ribotype accumulation curves predicted that about 20 bacterial clones would recover 5?6 ribotypes (c. 70?80% of the total molecular variation) per locality. The samples from the three experimental stations in Brazil displayed most (14 out of 16) ribotypes found worldwide; the lack of genetic structure and differentiation at a diverse geographic scale suggests that both local and distant sources provide airborne inoculum during disease establishment. Soybean genotypes with resistance genes for the Asian soybean rust did not decrease the molecular genetic variation of fungal populations.
650 $aMicrobial growth
650 $aPlant diseases and disorders
650 $aSoybean rust
650 $aDoença de planta
650 $aFerrugem
650 $aFungo
650 $aPhakopsora pachyrhizi
650 $aSoja
700 1 $aSILVA, M. R.
700 1 $aGUILLIN, E. A.
700 1 $aFREIRE, M. C. M.
700 1 $aSCHUSTER, I.
700 1 $aALMEIDA, A. M. R.
700 1 $aOLIVEIRA, L. O.
773 $tPlant Pathology, [S. l.]$gv. 64, n. 3, p. 729-737, Jun. 2015.
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