Fitopatologia Brasileira (2003) 28, 591-596

Vilmar Antonio Ragagnin, Ana Lília Alzate-Marin, Thiago Livio P.O. Souza, Klever Márcio A. Arruda, Maurilio A. Moreira and Everaldo G. Barros (2003)
Avaliação da resistência de isolinhas de feijoeiro a diferentes patótipos de Colletotrichum lindemuthianum, Uromyces appendiculatus e Phaeoisariopsis griseola
[Evaluation of resistance of common bean near isogenic lines to Colletotrichum lindemuthianum, Uromyces appendiculatus and Phaeoisariopsis griseola]
Fitopatologia Brasileira 28 (6), 591-596
Abstract: Common bean (Phaseolus vulgaris)near isogenic lines (NIL's) derived from the "carioca-type" cultivar Rudá harboring resistance genes to anthracnose (Co-4 from cv. TOor Co-6 from cv. AB 136 or Co-10 from cv. Ouro Negro), rust (gene from cv. Ouro Negro) and angular leaf spot (phg-1 from the line AND 277) were developed by the Bean Breeding Program of BIOAGRO/UFV (Minas Gerais, Brazil) to be used for gene pyramiding. This work had the objective of determining the resistance spectra of these NIL's to different pathotypes of Colletotrichum lindemuthianum, Uromyces appendiculatus and Phaeoisariopsis griseola in order to select the lines most similar to those of the donor parents with regards to resistance. Artificial inoculations were conducted using 18, ten and four pathotypes of C. lindemuthianum, U. appendiculatus, and P. griseola, respectively. For anthracnose resistance, the following lines were selected: one line resistant to 17 pathotypes derived from the cross Rudá x TO, one line resistant to 15 pathotypes derived from the cross Rudá x AB 136, and one line resistant to 15 pathotypes derived from the cross Rudá x Ouro Negro. One line derived from the cross Rudá x Ouro Negro was resistant to ten U. appendiculatus pathotypes. One line derived from the cross Rudá x AND277 was resistant to the four P. griseola pathotypes tested. These NIL's are now being intercrossed to pyramid the resistance genes to rust, anthracnose and angular leaf spot in the "carioca-type" background Rudá.
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(original language: Portuguese)
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Database assignments for author(s): Thiago Lívio Pessoa Oliveira Souza, Maurílio Alves Moreira

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Uromyces appendiculatus	Beans (Phaseolus)	Brazil (south)
	Colletotrichum lindemuthianum	Beans (Phaseolus)	Brazil (south)
	Pseudocercospora griseola	Beans (Phaseolus)	Brazil (south)