Aggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement.

PEREIRA, R.; SOUZA, E. A.; BARCELOS, Q. L.; ABREU, A. F. B.; LIBRELON, S. S.

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Campo DC	Valor	Lengua/Idioma
dc.contributor.author	PEREIRA, R.	pt_BR
dc.contributor.author	SOUZA, E. A.	pt_BR
dc.contributor.author	BARCELOS, Q. L.	pt_BR
dc.contributor.author	ABREU, A. F. B.	pt_BR
dc.contributor.author	LIBRELON, S. S.	pt_BR
dc.date.accessioned	2016-02-17T11:11:11Z	pt_BR
dc.date.available	2016-02-17T11:11:11Z	pt_BR
dc.date.created	2016-02-17	pt_BR
dc.date.issued	2015	pt_BR
dc.identifier.citation	Genetics and Molecular Research, Ribeirão Preto, v. 14, n. 2, p. 5044-5053, 2015.	pt_BR
dc.identifier.issn	1676-5680	pt_BR
dc.identifier.uri	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037340	pt_BR
dc.description	The fungus Pseudocercospora griseola, the causal agent of angular leaf spot in the common bean (Phaseolus vulgaris L.), exhibits a broad pathogenic variability that complicates the development of resistant cultivars. For breeding programs to successfully obtain common bean cultivars with durable resistance, knowing the aggressiveness of different strains, as well as the mechanisms of genetic resistance, is important. The aims of this study were to study the variation within race 63.63 by evaluating the aggressiveness of different strains, to analyze the genetic resistance of common bean lines to P. griseola , and to ascertain the implications for genetic improvement in obtaining resistance in this pathosystem. Four strains, collected from different locations, were inoculated in three groups of common bean lines in a greenhouse, and the severity of the disease was subsequently evaluated. Statistical analyses were carried out using the diallel method, which provided information on the vertical and horizontal resistance of host plants, in addition to information regarding the aggressiveness of the strains. The aggressiveness of P. griseola differed between the strains of race 63.63. The diallel method proved to be promising for the identification of horizontal and vertical resistance in the common bean-P. griseola pathosystem, with a predominance of horizontal resistance. Gene pyramiding, using marker-assisted selection, may not be the most effective strategy for obtaining durable resistance.	pt_BR
dc.language.iso	eng	eng
dc.rights	openAccess	eng
dc.subject	Pseudocercospora griseola	pt_BR
dc.subject	Melhoramento genético	pt_BR
dc.title	Aggressiveness of Pseudocercospora griseola strains in common bean genotypes and implications for genetic improvement.	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.date.updated	2016-02-17T11:11:11Z	pt_BR
dc.subject.thesagro	Feijão	pt_BR
dc.subject.thesagro	Phaseolus vulgaris	pt_BR
dc.subject.thesagro	Fungo	pt_BR
dc.subject.nalthesaurus	Genetic improvement	pt_BR
riaa.ainfo.id	1037340	pt_BR
riaa.ainfo.lastupdate	2016-02-17	pt_BR
dc.identifier.doi	10.4238/2015.May.12.7	pt_BR
dc.contributor.institution	R. PEREIRA, UFLA; E. A. SOUZA, UFLA; Q. L. BARCELOS, UFMT, Sinop-MT; ANGELA DE FATIMA BARBOSA ABREU, CNPAF; S. S. LIBRELON, UFLA.	pt_BR
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