Long Term Management of Rhizomania Disease-Insight Into the Changes of the Beet necrotic yellow vein virus RNA-3 Observed Under Resistant and Non-resistant Sugar Beet Fields

Frontiers in Plant Science
Yann GaleinClaude Bragard

Abstract

Rhizomania disease, caused by the Beet necrotic yellow vein virus (BNYVV), is considered as one of the major constraints for sugar beet production, worldwide. As a result of the introgression of major resistance genes (Holly, Rz2) in commercially available sugar beet varieties, the virus has endured strong selection pressure since the 90s'. Understanding the virus response and diversity to sugar beet resistance is a key factor for a sustainable management of only few resistance genes. Here we report rhizomania surveys conducted in a rhizomania hot spot, the Pithiviers area (France) during a 4-year period and complementary to the study of Schirmer et al. (2005). The study aimed at evaluating the intra- and inter-field BNYVV diversity in response to different sources of resistance and over the growing season. To follow rhizomania development over the sugar beet growing season, extensive field samplings combined with field assays were performed in this study. The evolution of the BNYVV diversity was assessed at intra- and inter-field levels, with sugar beet cultivars containing different resistance genes (Rz1, Rz1 + Heterodera schachtii resistance and Rz1Rz2). Intra-field diversity was analyzed at the beginning and the end of the ...Continue Reading

References

Jan 11, 1984·Nucleic Acids Research·J DevereuxO Smithies
Apr 20, 2005·Genome Génome / Conseil National De Recherches Canada·Sara GidnerThomas Kraft
Sep 28, 2005·The Journal of General Virology·Audrey SchirmerOlivier Lemaire
Oct 24, 2008·Phytopathology·John J WeilandHsing-Yeh Liu
Jan 24, 2009·Molecular Plant Pathology·Graham R D McGrannMark Stevens

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Datasets Mentioned

BETA
AF197545
MG839229
MG839249

Methods Mentioned

BETA
enzyme-linked immunosorbent assay
PCR
ELISA

Software Mentioned

Clustal W Computer Group
Expasy Proteomics Server
Invitrogen Vector NTI Advance 10

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