Data/hora: 17/06/2024 12:52:41

Provedor de dados: | 86
País: | Brazil
Título: | Identification of quantitative trait loci for resistance against soybean sudden death syndrome caused by Fusarium tucumaniae
Autores: | Yamanaka,Naoki; Fuentes,Francisco Horacio; Gilli,Javier Ramon; Watanabe,Satoshi; Harada,Kyuya; Ban,Tomohiro; Abdelnoor,Ricardo Vilela; Nepomuceno,Alexandre Lima; Homma,Yoshihisa.
Data: | 2006-09-01
Ano: | 2006
Palavras-chave: | Glycine max; Disease index; Residual heterozygous line; SDS.
Resumo: | The objective of this work was to identify genomic regions that underlie resistance to Fusarium tucumaniae sp. nov., the causing agent of sudden death syndrome (SDS) in soybean in South America, using a population with a genetic background different from that previously reported for Fusarium virguliforme sp. nov. (F. solani f. sp. glycines), also responsible for SDS in soybean. Although major genes and quantitative trait loci (QTL) for SDS resistance have been identified, little is known about the same disease caused by Fusarium tucumaniae sp. nov., in South America. To identify genetic factors related to resistance to F. tucumaniae and DNA markers associated with them, a QTL analysis was performed using recombinant inbred lines. The map locations of the four loci, here identified, differed from those SDS resistance QTL previously described. It was screened a residual heterozygous line (RHL), which was heterozygous around the most effective QTL, RSDS1, and homozygous for the other genomic regions. The genetic effect of RSDS1 was confirmed using near-isogenic lines (NIL) derived from the RHL. The line which was homozygous for the Misuzudaizu genotype showed resistance levels comparable with that of the line homozygous for the Moshidou Gong 503 genotype.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000900006

Editor:

Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira

Relação: | 10.1590/S0100-204X2006000900006
Formato: | text/html
Fonte: | Pesquisa Agropecuária Brasileira  v.41 n.9 2006
Fonte: | info:eu-repo/semantics/openAccess