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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
25/03/2002 |
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Data da última atualização: |
25/03/2002 |
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Autoria: |
KELEMU, S.; BADEL, J. L.; MORENO, C. X.; MILES, J. W.; CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J. D' A. |
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Título: |
Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. I. genetic and pathogenic diversity in Colletotrichum gloeosporioides isolates from Stylosanthes guianensis. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Tropical Grasslands, Queensland, v. 31, p. 387-392, 1997. |
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Idioma: |
Inglês |
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Conteúdo: |
Anthacnose, caused by Colletotrichum gloeosporioides, is the most important and widespread disease of Stylosanthes, a diverse tropical and subtropical forage legume naturally disributed in central and South America. This paper compares the genetic and pathogenic diversity of 45 isolates, which originated from S. guianensis genotypes. Published information on the pathogenic diversity of these isolates on a set of 12 S. guianensis was used. The amount of genetic diversity was measured at molecular level by polymerase chain reaction amplifications of DNA with 9 arbitrary primers of 10 bases each using the Random Amplified Polymorphic DNA (RAPD) ,markers. The amplifications revealed scorable polymorphism among the isolates, and a total of 80 band positions were scored. Using Ward s method (N igual 6) of statistical analysis, the isolates were separated into 6 clusters. Generally, isolates were clustered togheder by their geographic origin and/or their original host genotype. Isolates from Carimagua, Colombia, a savanna ecosystem and a long-time Stylosanthes breeding and selection site, exhibited a relatively wider range of genetic diversity than those from a newly opened trial site in the Amazon basin of Colombia. No strict correlation existed between genetic diversity, as measured by RAPD, and differential virulence, as defined by the pathotype. Isolates of the same pathotype/RAPD grouping often originated from the same host genotype and/or geographical locality. This information will be useful in determining future sampling strategies for the pathogen population. MenosAnthacnose, caused by Colletotrichum gloeosporioides, is the most important and widespread disease of Stylosanthes, a diverse tropical and subtropical forage legume naturally disributed in central and South America. This paper compares the genetic and pathogenic diversity of 45 isolates, which originated from S. guianensis genotypes. Published information on the pathogenic diversity of these isolates on a set of 12 S. guianensis was used. The amount of genetic diversity was measured at molecular level by polymerase chain reaction amplifications of DNA with 9 arbitrary primers of 10 bases each using the Random Amplified Polymorphic DNA (RAPD) ,markers. The amplifications revealed scorable polymorphism among the isolates, and a total of 80 band positions were scored. Using Ward s method (N igual 6) of statistical analysis, the isolates were separated into 6 clusters. Generally, isolates were clustered togheder by their geographic origin and/or their original host genotype. Isolates from Carimagua, Colombia, a savanna ecosystem and a long-time Stylosanthes breeding and selection site, exhibited a relatively wider range of genetic diversity than those from a newly opened trial site in the Amazon basin of Colombia. No strict correlation existed between genetic diversity, as measured by RAPD, and differential virulence, as defined by the pathotype. Isolates of the same pathotype/RAPD grouping often originated from the same host genotype and/or geographical locality. This informati... Mostrar Tudo |
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Palavras-Chave: |
Biodversity. |
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Thesagro: |
Biodiversidade; Colletotrichum Gloeosporioides; Patogenicidade; Stylosanthes Guianensis. |
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Thesaurus Nal: |
pathogenicity. |
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Categoria do assunto: |
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Marc: |
LEADER 02447naa a2200265 a 4500
001 1564554
005 2002-03-25
008 1997 bl --- 0-- u #d
100 1 $aKELEMU, S.
245 $aBiodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. I. genetic and pathogenic diversity in Colletotrichum gloeosporioides isolates from Stylosanthes guianensis.
260 $c1997
520 $aAnthacnose, caused by Colletotrichum gloeosporioides, is the most important and widespread disease of Stylosanthes, a diverse tropical and subtropical forage legume naturally disributed in central and South America. This paper compares the genetic and pathogenic diversity of 45 isolates, which originated from S. guianensis genotypes. Published information on the pathogenic diversity of these isolates on a set of 12 S. guianensis was used. The amount of genetic diversity was measured at molecular level by polymerase chain reaction amplifications of DNA with 9 arbitrary primers of 10 bases each using the Random Amplified Polymorphic DNA (RAPD) ,markers. The amplifications revealed scorable polymorphism among the isolates, and a total of 80 band positions were scored. Using Ward s method (N igual 6) of statistical analysis, the isolates were separated into 6 clusters. Generally, isolates were clustered togheder by their geographic origin and/or their original host genotype. Isolates from Carimagua, Colombia, a savanna ecosystem and a long-time Stylosanthes breeding and selection site, exhibited a relatively wider range of genetic diversity than those from a newly opened trial site in the Amazon basin of Colombia. No strict correlation existed between genetic diversity, as measured by RAPD, and differential virulence, as defined by the pathotype. Isolates of the same pathotype/RAPD grouping often originated from the same host genotype and/or geographical locality. This information will be useful in determining future sampling strategies for the pathogen population.
650 $apathogenicity
650 $aBiodiversidade
650 $aColletotrichum Gloeosporioides
650 $aPatogenicidade
650 $aStylosanthes Guianensis
653 $aBiodversity
700 1 $aBADEL, J. L.
700 1 $aMORENO, C. X.
700 1 $aMILES, J. W.
700 1 $aCHAKRABORTY, S.
700 1 $aFERNANDES, C. D.
700 1 $aCHARCHAR, M. J. D' A.
773 $tTropical Grasslands, Queensland$gv. 31, p. 387-392, 1997.
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Registro original: |
Embrapa Cerrados (CPAC) |
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| Registros recuperados : 17 | |
| 2. |  | CHAKRABORTY, S.; PERROT, R.; CHARCHAR, M. J. D`A.; FERNANDES, C. D.; KELEMU, S. Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. II. Genetic and pathogenic diversity in isolates of Colletotrichum gloeosporioides from eight species of Stylosanthes. Tropical Grasslands, Brisbane, v.31, n.5, p.393-401, Nov. 1997. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 3. | | CHAKRABORTY, S.; PERROT, R.; CHARCHAR, M. J. D' A.; FERNANDES, C. D.; KELEMU, S. Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. II. Genetic and pathogenic diversity in isolates of Colletotrichum gloeosporioides from eight species of Stylosanthes. Tropical Grasslands, Queensland, v.31, p.393-401, 1997.| Biblioteca(s): Embrapa Cerrados. |
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| 4. | | CAMERON, D. F.; CHARCHAR, M. J. D`A.; FERNANDES, C. D.; KELEMU, S.; CHAKRABORTY, S. Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. III. Field evaluation of Stylosanthes species for anthracnose resistance in their centre of diversity. Tropical Grasslands, Brisbane, v.31, n.5, p.402-407, Nov. 1997. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 5. | | CAMERON, D. F.; CHARCHAR, M. J. D' A.; FERNANDES, C. D.; KELEMU, S.; CHAKRABORTY, S. Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. III. Field evaluation of Stylosanthes species for anthracnose resistance in their centre of diversity. Tropical Grasslands, Queensland, v. 31, p. 402-407, 1997.| Biblioteca(s): Embrapa Cerrados. |
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| 6. | | CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J. D'A.; KELEMU, S.; CAMERON, D. F. Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the center of host-pathogen diversity. Tropical Grasslands, Brisbane, v.31, n.5, p.409-416, Nov. 1997.| Biblioteca(s): Embrapa Gado de Corte. |
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| 7. | | CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J. D'A.; KELEMU, S.; CAMERON, D. F. Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. IV. Epidemiology of Stylosanthes anthracnose at the centre of host-pathogen diversity. Tropical Grasslands, Queensland, v.31, p.408-416, 1997.| Biblioteca(s): Embrapa Cerrados. |
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| 10. | | CHAKRABORTY, S.; PERROT, R.; CHARCHAR, M. J. d' A.; FERNANDES, C. D.; KELEMU, S. Pathogenic & genetic variation in Colletotrichum gloeosporioides infecting Stylosanthes spp.: implications for Australian cultivars. Phytopathology, St. Paul, v. 87, n. 6, p. S16, 1997. Apresentado no "APS Annual Meeting, 1997, Rochester, New York".| Biblioteca(s): Embrapa Cerrados. |
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| 11. | | CHAKRABORTY, S.; PERROT, R.; CHARCHAR, M. J. D'A.; FERNANDES, C. D.; KELEMU, S. Variation in the Stylosanthes anthracnose pathogen: implications for australian cultivars. In: INTERNATIONAL GRASSLAND CONGRESS, 18., 1997, Winnipeg, Saskatoon. Proceedings... [S.l.: s.n., 1997?]. p. 13-1 / 13-2. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 12. | | WEEDS, P. CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J.; RAMESH; C. R.; GUODAO, L.; KELEMU, S. Genetic diversity i the anthracnose pathogen infecting Stylosanthes in Brazil, India and China. In: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, Sao Pedro, SP. Grassland ecosystems: an outlook into the 21st century: proceedings. Piracicaba: FEALQ, 2001. p. 232-234.| Biblioteca(s): Embrapa Cerrados. |
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| 13. | | WEEDS, P.; CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J.; RAMESH, C. R.; GUODAO, L.; KELEMU, S. Genetic diversity in the anthracnose pathogen infecting Stylosanthes in Brazil, India and China. In: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, Sao Pedro, SP. Proceedings... Piracicaba: FEALQ, 2001. p. 232-234.| Biblioteca(s): Embrapa Cerrados; Embrapa Gado de Corte. |
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| 14. | | WEEDS, P. L.; CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J. d'A.; RAMESH, C. R.; KEXIAN, Y.; KELEMU, S. Genetic diversity in Colletotrichum gloeosporioides from Stylosanthes spp. at centers of origin and utilization. Phytopathology, St. Paul, v. 93, n. 2, p. 176-185, 2003.| Biblioteca(s): Embrapa Cerrados. |
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| 15. | | KELEMU, S.; BADEL, J. L.; MORENO, C. X.; MILES, J. W.; CHAKRABORTY, S.; FERNANDES, C. D.; CHARCAR, M. J. D`A. Biodeversity, epidemiology and virulence of colletotrichum gloeosporioides. I.Genetic and patrhogenica diversituy in colletotrichum gloesporioides isolates from Stylosanthes guianensis. Tropical Grasslands, Brisbane, v.31, n.5, p.387-392, Nov. 1997. CNPGC.| Biblioteca(s): Embrapa Gado de Corte. |
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| 16. | | KELEMU, S.; BADEL, J. L.; MORENO, C. X.; MILES, J. W.; CHAKRABORTY, S.; FERNANDES, C. D.; CHARCHAR, M. J. D' A. Biodiversity, epidemiology and virulence of Colletotrichum gloeosporioides. I. genetic and pathogenic diversity in Colletotrichum gloeosporioides isolates from Stylosanthes guianensis. Tropical Grasslands, Queensland, v. 31, p. 387-392, 1997.| Biblioteca(s): Embrapa Cerrados. |
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| 17. | | KELEMU, S.; SKINNER, D.; BADEL; J. L.; MORENO, C. X.; RODRIGUEZ, M. X.; FERNANDES, C. D.; CHARCHAR, M. J.; CHAKRABORTY, S. Genetic diversity in South American Colletottrichum goleosporioides isolates from Stylosanthes guianensis, a tropical forage legume. European Journal of Plant Pathology, v. 105, p. 261-272, 1999.| Biblioteca(s): Embrapa Cerrados. |
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| Registros recuperados : 17 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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