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Title 

Validation and interaction of the Soybean mosaic virus lethal necrosis allele, Rsv1-n, in PI507389

 

PI507389에 있는 콩 모자이크 바이러스 치명적 괴자 Rsv1-n 유전자의 확인 및 상호작용

Authors 

D M TuckerM A S MaroofSoon Chun JeongG R BussS A Tolin

Publisher 

Crop Science Society of America

Issue Date 

2009

Citation 

Crop Science, vol. 49, no. 4, pp. 1277-1283

Abstract 

Soybean mosaic virus (SMV) is the causal agent of a commonly occurring disease of soybean [Glycine max (L.) Merr.] that can be effectively controlled through the deployment of single, dominant genes known as Rsv genes, which confer resistance to different strains of SMV. The Rsv1-n allele in PI 507389 conditions a lethal necrosis (LN) reaction on inoculation with specifi c SMV strains, including SMV-G1, -G5, and -G6. The objective of the current study was to examine effects of the Rsv1-n allele introgressed into the susceptible genotype ‘Essex’ background alone or in combination with either Rsv3 or Rsv4 resistance genes by inoculation with six different SMV strains. Presence of Rsv1-n and its LN as well as severe mosaic reactions to the strains tested were masked when the gene was pyramided with Rsv3 and Rsv4. Thus in some cases, the LN-causing gene may go undetected in breeding populations. Pyramided isolines containing Rsv1-n and Rsv4 together were susceptible to SMV-G6, displaying a mosaic reaction, although Rsv4 alone confers resistance against all known strains. This study demonstrates the importance of selecting against the Rsv1-n allele to prevent its introduction into breeding programs.

ISSN 

0011-183X

Link 

http://dx.doi.org/10.2135/cropsci2008.08.0477

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2019-05-02


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