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 | Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Las Brujas. |
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Fecha : |
29/09/2014 |
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Actualizado : |
29/09/2014 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
DEAHL, K.L.; PAGANI, M.C.; VILARO, F.; PÉREZ, F.M.; MORAVEC, B.; COOKE, L.R. |
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Afiliación : |
MARIA CRISTINA PAGANI; FRANCISCO LUIS VILARO PAREJA, Instituto Nacional de Investigación Agropecuaria (INIA), Uruguay. |
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Título : |
Characteristics of Phytophthora infestans isolates from Uruguay. |
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Fecha de publicación : |
2003 |
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Fuente / Imprenta : |
European Journal of Plant Pathology, 2003, v.109, no.3, p.277?281. |
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ISSN : |
0929-1873 |
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DOI : |
http://dx.doi.org/10.1023/A:1022825907389 |
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Idioma : |
Inglés |
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Contenido : |
ABSTRACT.
Isolates of Phytophthora infestans were obtained from late blighted plants from several potato-growing regions of Uruguay in 1998 and 1999. Of these, 25 representative isolates (4 from 1998, 21 from 1999) from the mainpotato-growing areas of the country, were characterised in terms of mating type, metalaxyl resistance, allozyme genotype, mitochondrial haplotype, RG57 fingerprint (1999 isolates only) and pathotype. All isolates proved to be A2 mating type, monomorphic and homozygous at the loci coding for glucose-6-phosphate isomerase and peptidase (Gpi 100/100, Pep 100/100) and to possess mitochondrial haplotype IIa. Metalaxyl-resistant isolates constituted 92% of the total. All the 1999 isolates possessed the same RG57 fingerprint, which was that previously reported as associated with the clonal lineage BR-1 from Brazil and Bolivia, which is also A2, Gpi 100/100, Pep 100/100. Most of the isolates displayed broad-spectrum virulence and five carried virulence to 10 of the 11 R genes tested despite the absence of R genes in commercially grown potato cultivars. It was concluded that the Uruguayan P. infestans isolates resembled isolates from neighbouring South American countries, notably Brazil, and belong to the new populations of the pathogen now predominant in many countries.
© 2003 Kluwer Academic Publishers. |
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Thesagro : |
PAPA; RESISTENCIA A TIZONES; TIZONES. |
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Asunto categoría : |
F30 Genética vegetal y fitomejoramiento |
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Marc : |
LEADER 02031naa a2200241 a 4500
001 1050699
005 2014-09-29
008 2003 bl uuuu u00u1 u #d
022 $a0929-1873
024 7 $ahttp://dx.doi.org/10.1023/A:1022825907389$2DOI
100 1 $aDEAHL, K.L.
245 $aCharacteristics of Phytophthora infestans isolates from Uruguay.$h[electronic resource]
260 $c2003
520 $aABSTRACT. Isolates of Phytophthora infestans were obtained from late blighted plants from several potato-growing regions of Uruguay in 1998 and 1999. Of these, 25 representative isolates (4 from 1998, 21 from 1999) from the mainpotato-growing areas of the country, were characterised in terms of mating type, metalaxyl resistance, allozyme genotype, mitochondrial haplotype, RG57 fingerprint (1999 isolates only) and pathotype. All isolates proved to be A2 mating type, monomorphic and homozygous at the loci coding for glucose-6-phosphate isomerase and peptidase (Gpi 100/100, Pep 100/100) and to possess mitochondrial haplotype IIa. Metalaxyl-resistant isolates constituted 92% of the total. All the 1999 isolates possessed the same RG57 fingerprint, which was that previously reported as associated with the clonal lineage BR-1 from Brazil and Bolivia, which is also A2, Gpi 100/100, Pep 100/100. Most of the isolates displayed broad-spectrum virulence and five carried virulence to 10 of the 11 R genes tested despite the absence of R genes in commercially grown potato cultivars. It was concluded that the Uruguayan P. infestans isolates resembled isolates from neighbouring South American countries, notably Brazil, and belong to the new populations of the pathogen now predominant in many countries. © 2003 Kluwer Academic Publishers.
650 $aPAPA
650 $aRESISTENCIA A TIZONES
650 $aTIZONES
700 1 $aPAGANI, M.C.
700 1 $aVILARO, F.
700 1 $aPÉREZ, F.M.
700 1 $aMORAVEC, B.
700 1 $aCOOKE, L.R.
773 $tEuropean Journal of Plant Pathology, 2003$gv.109, no.3, p.277?281.
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