Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines
Knowledge of the avirulence (Avr) genes present in plant pathogens facilitates the identification of the required resistance (R) gene to be incorporated in host plants to overcome pathogen infection. The plus/minus Polymerase Chain Reaction (PCR) assay was conducted to determine the presence of the virulent and avirulent ACE1 genotypes of the rice blast fungus in Philippine rice fields. Results indicated that the avirulent genotype Guy11 was present only in 13% of the test isolates, whereas the virulent genotypes, PH14 and CM28, appeared in 83% of the total number of test isolates. With contingency analysis on the type of agroecosystem and presence of ACE1 genotype, it was known that Guy11 is significantly associated with the upland agroecosystem. Whereas, PH14 was present in both the irrigated and rainfed lowland and CM28 was ubiquitously associated with any type of agroecosystems. No significant association, however, was noted between a specific ACE1 genotype and geographic location. The isolates having virulent ACE1 genotype can overcome the resistance Pi33 which is commonly introgressed into popular semi-dwarf indica rice varieties.
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dig-cirad-fr-5808462024-01-28T23:34:11Z http://agritrop.cirad.fr/580846/ http://agritrop.cirad.fr/580846/ Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines. Lopez Ana Liza C., Cumagun Christian Joseph R., Tharreau Didier. 2015. IAMURE International Journal of Ecology and Conservation, 16 (1) : 80-92.https://doi.org/10.7718/ijec.v16i1.1018 <https://doi.org/10.7718/ijec.v16i1.1018> Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines Lopez, Ana Liza C. Cumagun, Christian Joseph R. Tharreau, Didier eng 2015 IAMURE International Journal of Ecology and Conservation H20 - Maladies des plantes F30 - Génétique et amélioration des plantes Magnaporthe grisea Oryza sativa génotype résistance génétique variation génétique avirulence identification gène PCR agroécosystème distribution géographique expérimentation riz pluvial http://aims.fao.org/aos/agrovoc/c_37090 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_35130 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_35004 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_3214 http://aims.fao.org/aos/agrovoc/c_34079 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_8076 Philippines http://aims.fao.org/aos/agrovoc/c_5783 Knowledge of the avirulence (Avr) genes present in plant pathogens facilitates the identification of the required resistance (R) gene to be incorporated in host plants to overcome pathogen infection. The plus/minus Polymerase Chain Reaction (PCR) assay was conducted to determine the presence of the virulent and avirulent ACE1 genotypes of the rice blast fungus in Philippine rice fields. Results indicated that the avirulent genotype Guy11 was present only in 13% of the test isolates, whereas the virulent genotypes, PH14 and CM28, appeared in 83% of the total number of test isolates. With contingency analysis on the type of agroecosystem and presence of ACE1 genotype, it was known that Guy11 is significantly associated with the upland agroecosystem. Whereas, PH14 was present in both the irrigated and rainfed lowland and CM28 was ubiquitously associated with any type of agroecosystems. No significant association, however, was noted between a specific ACE1 genotype and geographic location. The isolates having virulent ACE1 genotype can overcome the resistance Pi33 which is commonly introgressed into popular semi-dwarf indica rice varieties. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/580846/1/Lopez%20Diversity%20of%20Ace1%20genotypes%202015.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.7718/ijec.v16i1.1018 10.7718/ijec.v16i1.1018 info:eu-repo/semantics/altIdentifier/doi/10.7718/ijec.v16i1.1018 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.7718/ijec.v16i1.1018 |
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H20 - Maladies des plantes F30 - Génétique et amélioration des plantes Magnaporthe grisea Oryza sativa génotype résistance génétique variation génétique avirulence identification gène PCR agroécosystème distribution géographique expérimentation riz pluvial http://aims.fao.org/aos/agrovoc/c_37090 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_35130 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_35004 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_3214 http://aims.fao.org/aos/agrovoc/c_34079 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5783 H20 - Maladies des plantes F30 - Génétique et amélioration des plantes Magnaporthe grisea Oryza sativa génotype résistance génétique variation génétique avirulence identification gène PCR agroécosystème distribution géographique expérimentation riz pluvial http://aims.fao.org/aos/agrovoc/c_37090 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_35130 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_35004 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_3214 http://aims.fao.org/aos/agrovoc/c_34079 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5783 |
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H20 - Maladies des plantes F30 - Génétique et amélioration des plantes Magnaporthe grisea Oryza sativa génotype résistance génétique variation génétique avirulence identification gène PCR agroécosystème distribution géographique expérimentation riz pluvial http://aims.fao.org/aos/agrovoc/c_37090 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_35130 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_35004 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_3214 http://aims.fao.org/aos/agrovoc/c_34079 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5783 H20 - Maladies des plantes F30 - Génétique et amélioration des plantes Magnaporthe grisea Oryza sativa génotype résistance génétique variation génétique avirulence identification gène PCR agroécosystème distribution géographique expérimentation riz pluvial http://aims.fao.org/aos/agrovoc/c_37090 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_35130 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_35004 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_3214 http://aims.fao.org/aos/agrovoc/c_34079 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5783 Lopez, Ana Liza C. Cumagun, Christian Joseph R. Tharreau, Didier Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines |
description |
Knowledge of the avirulence (Avr) genes present in plant pathogens facilitates the identification of the required resistance (R) gene to be incorporated in host plants to overcome pathogen infection. The plus/minus Polymerase Chain Reaction (PCR) assay was conducted to determine the presence of the virulent and avirulent ACE1 genotypes of the rice blast fungus in Philippine rice fields. Results indicated that the avirulent genotype Guy11 was present only in 13% of the test isolates, whereas the virulent genotypes, PH14 and CM28, appeared in 83% of the total number of test isolates. With contingency analysis on the type of agroecosystem and presence of ACE1 genotype, it was known that Guy11 is significantly associated with the upland agroecosystem. Whereas, PH14 was present in both the irrigated and rainfed lowland and CM28 was ubiquitously associated with any type of agroecosystems. No significant association, however, was noted between a specific ACE1 genotype and geographic location. The isolates having virulent ACE1 genotype can overcome the resistance Pi33 which is commonly introgressed into popular semi-dwarf indica rice varieties. |
format |
article |
topic_facet |
H20 - Maladies des plantes F30 - Génétique et amélioration des plantes Magnaporthe grisea Oryza sativa génotype résistance génétique variation génétique avirulence identification gène PCR agroécosystème distribution géographique expérimentation riz pluvial http://aims.fao.org/aos/agrovoc/c_37090 http://aims.fao.org/aos/agrovoc/c_5438 http://aims.fao.org/aos/agrovoc/c_3225 http://aims.fao.org/aos/agrovoc/c_35130 http://aims.fao.org/aos/agrovoc/c_15975 http://aims.fao.org/aos/agrovoc/c_35004 http://aims.fao.org/aos/agrovoc/c_3791 http://aims.fao.org/aos/agrovoc/c_3214 http://aims.fao.org/aos/agrovoc/c_34079 http://aims.fao.org/aos/agrovoc/c_36669 http://aims.fao.org/aos/agrovoc/c_5083 http://aims.fao.org/aos/agrovoc/c_2758 http://aims.fao.org/aos/agrovoc/c_8076 http://aims.fao.org/aos/agrovoc/c_5783 |
author |
Lopez, Ana Liza C. Cumagun, Christian Joseph R. Tharreau, Didier |
author_facet |
Lopez, Ana Liza C. Cumagun, Christian Joseph R. Tharreau, Didier |
author_sort |
Lopez, Ana Liza C. |
title |
Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines |
title_short |
Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines |
title_full |
Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines |
title_fullStr |
Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines |
title_full_unstemmed |
Diversity of ACE1 genotypes of the rice blast fungus (Magnaporthe oryzae B.C. Couch) in the Philippines |
title_sort |
diversity of ace1 genotypes of the rice blast fungus (magnaporthe oryzae b.c. couch) in the philippines |
url |
http://agritrop.cirad.fr/580846/ http://agritrop.cirad.fr/580846/1/Lopez%20Diversity%20of%20Ace1%20genotypes%202015.pdf |
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