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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
07/11/2008 |
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Data da última atualização: |
26/10/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ALMEIDA, A. M. R.; SOSA-GOMEZ, D. R.; BINNECK, E.; MARIN, S. R. R.; ZUCCHI, M. I. ABDELNOOR, R. V.; SOUTO, E. R. |
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Afiliação: |
Alvaro Manoel Rodrigues Almeida, CNPSo; Daniel Ricardo Sosa Gomez, CNPSo; Eliseu Binneck, CNPSo; Silvana Regina Rockenbach Marin, CNPSo; Maria Ines Zucchi, Instituto Agronômico de Campinas, IAC; Ricardo Vilela Abdelnoor, CNPSo; Eliezer Rodrigues de Souto. |
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Título: |
Effect of crop rotation on specialization and genetic diversity of Macrophomina phaseolina. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 33, n. 4, p. 257-264, jul./aug. 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Charcoal rot, caused by Macrophomina phaseolina, is one of the most important diseases of soybean. Genetic variability among soybean isolates has been observed but the effect of host specialization on genetic variability has not been reported. In this work, isolates from soybean, corn and sunflower were evaluated based on cross inoculations and number of microsclerotia/g of roots. The highest and lowest significant (P<0.005) production of microsclerotia was obtained in soybean (863 microsclerotia/g of roots) and sunflower (578 microsclerotia/g of roots), respectively, regardless of the origin of the isolate. Additionally, the effect of a 20-year crop rotation on genetic variability based on RAPD was studied. Eighty-nine isolates from five populations were obtained from soil samples under four crop rotation systems and an uncropped soil. Seven clusters were obtained considering a similarity level of 85%. Analysis indicated that M. phaseolina is a highly diverse species and also revealed a strong effect of the rotation system on genetic diversity. AMOVA was conducted for the RAPD data. From the total genetic variability, 21% (P<0.0001) could be explained by the differences between populations while 79% could be explained by differences within populations ( Fst = 0.2110; P<0.0001). The mean coefficient of gene differentiation (GST) estimated among the five populations indicated 27% of differentiation between populations similar to the AMOVA results where Fst= 0.2110. Total gene diversity estimated indicated high levels of variability (HT =0.3484). Results suggest that genetic differentiation of M. phaseolina can be altered by crop rotation. MenosCharcoal rot, caused by Macrophomina phaseolina, is one of the most important diseases of soybean. Genetic variability among soybean isolates has been observed but the effect of host specialization on genetic variability has not been reported. In this work, isolates from soybean, corn and sunflower were evaluated based on cross inoculations and number of microsclerotia/g of roots. The highest and lowest significant (P<0.005) production of microsclerotia was obtained in soybean (863 microsclerotia/g of roots) and sunflower (578 microsclerotia/g of roots), respectively, regardless of the origin of the isolate. Additionally, the effect of a 20-year crop rotation on genetic variability based on RAPD was studied. Eighty-nine isolates from five populations were obtained from soil samples under four crop rotation systems and an uncropped soil. Seven clusters were obtained considering a similarity level of 85%. Analysis indicated that M. phaseolina is a highly diverse species and also revealed a strong effect of the rotation system on genetic diversity. AMOVA was conducted for the RAPD data. From the total genetic variability, 21% (P<0.0001) could be explained by the differences between populations while 79% could be explained by differences within populations ( Fst = 0.2110; P<0.0001). The mean coefficient of gene differentiation (GST) estimated among the five populations indicated 27% of differentiation between populations similar to the AMOVA results where Fst= 0.2110. Total gene... Mostrar Tudo |
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Thesagro: |
Rotação de Cultura. |
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Thesaurus Nal: |
Crop rotation. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42998/1/28690.pdf
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Marc: |
LEADER 02331naa a2200205 a 4500
001 1471019
005 2023-10-26
008 2008 bl uuuu u00u1 u #d
100 1 $aALMEIDA, A. M. R.
245 $aEffect of crop rotation on specialization and genetic diversity of Macrophomina phaseolina.$h[electronic resource]
260 $c2008
520 $aCharcoal rot, caused by Macrophomina phaseolina, is one of the most important diseases of soybean. Genetic variability among soybean isolates has been observed but the effect of host specialization on genetic variability has not been reported. In this work, isolates from soybean, corn and sunflower were evaluated based on cross inoculations and number of microsclerotia/g of roots. The highest and lowest significant (P<0.005) production of microsclerotia was obtained in soybean (863 microsclerotia/g of roots) and sunflower (578 microsclerotia/g of roots), respectively, regardless of the origin of the isolate. Additionally, the effect of a 20-year crop rotation on genetic variability based on RAPD was studied. Eighty-nine isolates from five populations were obtained from soil samples under four crop rotation systems and an uncropped soil. Seven clusters were obtained considering a similarity level of 85%. Analysis indicated that M. phaseolina is a highly diverse species and also revealed a strong effect of the rotation system on genetic diversity. AMOVA was conducted for the RAPD data. From the total genetic variability, 21% (P<0.0001) could be explained by the differences between populations while 79% could be explained by differences within populations ( Fst = 0.2110; P<0.0001). The mean coefficient of gene differentiation (GST) estimated among the five populations indicated 27% of differentiation between populations similar to the AMOVA results where Fst= 0.2110. Total gene diversity estimated indicated high levels of variability (HT =0.3484). Results suggest that genetic differentiation of M. phaseolina can be altered by crop rotation.
650 $aCrop rotation
650 $aRotação de Cultura
700 1 $aSOSA-GOMEZ, D. R.
700 1 $aBINNECK, E.
700 1 $aMARIN, S. R. R.
700 1 $aZUCCHI, M. I. ABDELNOOR, R. V.
700 1 $aSOUTO, E. R.
773 $tTropical Plant Pathology, Brasília, DF$gv. 33, n. 4, p. 257-264, jul./aug. 2008.
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Registro original: |
Embrapa Soja (CNPSO) |
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Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
14/11/2006 |
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Data da última atualização: |
26/07/2017 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
ALVES, F. S. F.; PINHEIRO, R. R.; OLIVEIRA, A. A. da F. |
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Afiliação: |
FRANCISCO SELMO FERNANDES ALVES, CNPC; RAYMUNDO RIZALDO PINHEIRO, CNPC; ANDREA ALICE DA FONSECA OLIVEIRA, CNPC. |
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Título: |
Implicações do uso de solução de formol em abscessos, para o controle da Linfadenite caseosa. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Sobral: Embrapa Caprinos, 2004. |
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Páginas: |
20 p. |
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Série: |
(Embrapa Caprinos. Documentos, 52). |
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Idioma: |
Português |
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Conteúdo: |
O ambiente como fator de persistência da bactéria e da doença nos rebanhos caprino e ovino; Considerações gerais sobre o uso do formol; Uso do formol a 10% no abscesso da linfadenite caseosa. |
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Palavras-Chave: |
Abscesses; Caprino: Doença; Chemical disease control; Considerações gerais sobre o uso do formol; Controle; Formol; Linfadenite cadeosa; O ambiente como fator de persistência da bactéria e da doença nos rebanhos caprino e ovino; uso do formol a 10% no abscesso da linfadenite caseosa. |
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Thesagro: |
Abscesso; Bactéria; Caprino; Controle químico; Corynebacterium Pseudotuberculosis; Doença; Doença Animal; Linfadenite Caseosa; Ovino. |
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Thesaurus NAL: |
Animal diseases; Caseous lymphadenitis; Disease control; Goats; Infectious diseases; Sheep. |
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Categoria do assunto: |
--
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/26685/1/DOC-52.pdf
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Marc: |
LEADER 01553nam a2200445 a 4500
001 1532490
005 2017-07-26
008 2004 bl uuuu u0uu1 u #d
100 1 $aALVES, F. S. F.
245 $aImplicações do uso de solução de formol em abscessos, para o controle da Linfadenite caseosa.
260 $aSobral: Embrapa Caprinos$c2004
300 $a20 p.
490 $a(Embrapa Caprinos. Documentos, 52).
520 $aO ambiente como fator de persistência da bactéria e da doença nos rebanhos caprino e ovino; Considerações gerais sobre o uso do formol; Uso do formol a 10% no abscesso da linfadenite caseosa.
650 $aAnimal diseases
650 $aCaseous lymphadenitis
650 $aDisease control
650 $aGoats
650 $aInfectious diseases
650 $aSheep
650 $aAbscesso
650 $aBactéria
650 $aCaprino
650 $aControle químico
650 $aCorynebacterium Pseudotuberculosis
650 $aDoença
650 $aDoença Animal
650 $aLinfadenite Caseosa
650 $aOvino
653 $aAbscesses
653 $aCaprino: Doença
653 $aChemical disease control
653 $aConsiderações gerais sobre o uso do formol
653 $aControle
653 $aFormol
653 $aLinfadenite cadeosa
653 $aO ambiente como fator de persistência da bactéria e da doença nos rebanhos caprino e ovino
653 $auso do formol a 10% no abscesso da linfadenite caseosa
700 1 $aPINHEIRO, R. R.
700 1 $aOLIVEIRA, A. A. da F.
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Embrapa Caprinos e Ovinos (CNPC) |
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