A potato hypersensitive resistance gene against potato virus X maps to a resistance gene cluster on chromosome 5

1997 ◽  
Vol 95 (1-2) ◽  
pp. 246-252 ◽  
Author(s):  
W. De Jong ◽  
A. Forsyth ◽  
D. Leister ◽  
C. Gebhardt ◽  
D.C. Baulcombe
Keyword(s):  
Gene Cluster ◽  
Resistance Gene ◽  
Potato Virus ◽  
Potato Virus X ◽  
Chromosome 5 ◽  
Hypersensitive Resistance ◽  
Resistance Gene Cluster

scholarly journals Organization and molecular evolution of a disease-resistance gene cluster in coffee trees

BMC Genomics ◽  
2011 ◽  
Vol 12 (1) ◽  
Author(s):  
Alessandra F Ribas ◽  
Alberto Cenci ◽  
Marie-Christine Combes ◽  
Hervé Etienne ◽  
Philippe Lashermes
Keyword(s):  
Disease Resistance ◽  
Molecular Evolution ◽  
Gene Cluster ◽  
Resistance Gene ◽  
Disease Resistance Gene ◽  
Resistance Gene Cluster

scholarly journals Evolution of a Complex Disease Resistance Gene Cluster in Diploid Phaseolus and Tetraploid Glycine

2012 ◽  
Vol 159 (1) ◽  
pp. 336-354 ◽  
Author(s):  
Tom Ashfield ◽  
Ashley N. Egan ◽  
Bernard E. Pfeil ◽  
Nicolas W.G. Chen ◽  
Ram Podicheti ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Gene Cluster ◽  
Resistance Gene ◽  
Complex Disease ◽  
Disease Resistance Gene ◽  
Resistance Gene Cluster

scholarly journals The Biopesticide Paenibacillus popilliae Has a Vancomycin Resistance Gene Cluster Homologous to the Enterococcal VanA Vancomycin Resistance Gene Cluster

2000 ◽  
Vol 44 (3) ◽  
pp. 705-709 ◽  
Author(s):  
Robin Patel ◽  
Kerryl Piper ◽  
Franklin R. Cockerill ◽  
James M. Steckelberg ◽  
Allan A. Yousten
Keyword(s):  
Gene Cluster ◽  
Resistance Gene ◽  
Bacterial Resistance ◽  
Vancomycin Resistance ◽  
Amino Acid Sequences ◽  
Agricultural Practice ◽  
Human Pathogens ◽  
Resistance Gene Cluster ◽  
Genes Encoding ◽  
Vancomycin Resistant

ABSTRACT We have previously identified, in Paenibacillus popilliae, a 708-bp sequence which has homology to the sequence of the enterococcal vanA gene. We have performed further studies revealing five genes encoding homologues of VanY, VanZ, VanH, VanA, and VanX in P. popilliae. The predicted amino acid sequences are similar to those in VanA vancomycin-resistant enterococci: 61% identity for VanY, 21% for VanZ, 74% for VanH, 77% for VanA, and 79% for VanX. The genes in P. popilliae may have been a precursor to or have had ancestral genes in common with vancomycin resistance genes in enterococci. The use of P. popilliae biopesticidal preparations in agricultural practice may have an impact on bacterial resistance in human pathogens.

scholarly journals Salicylic Acid Is Involved in the Nb-Mediated Defense Responses to Potato virus X in Solanum tuberosum

2010 ◽  
Vol 23 (4) ◽  
pp. 394-405 ◽  
Author(s):  
Gerardo Sánchez ◽  
Nadia Gerhardt ◽  
Florencia Siciliano ◽  
Adrián Vojnov ◽  
Isabelle Malcuit ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Solanum Tuberosum ◽  
Potato Virus ◽  
Potato Virus X ◽  
Defense Responses ◽  
Avirulent Strain ◽  
Dependent Manner ◽  
Hypersensitive Resistance ◽  
Potato Plants ◽  
Transgenic Lines

To evaluate the role of salicylic acid (SA) in Nb-mediated hypersensitive resistance to Potato virus X (PVX) avirulent strain ROTH1 in Solanum tuberosum, we have constructed SA-deficient transgenic potato plant lines by overexpressing the bacterial enzyme salicylate hydroxylase (NahG), which degrades SA. Evaluation of these transgenic lines revealed hydrogen peroxide accumulation and spontaneous lesion formation in an age- and light-dependent manner. In concordance, NahG potato plants were more sensitive to treatment with methyl viologen, a reactive oxygen species–generating compound. In addition, when challenged with PVX ROTH1, NahG transgenic lines showed a decreased disease-resistance response to infection and were unable to induce systemic acquired resistance. However, the avirulent viral effector, the PVX 25-kDa protein, does induce expression of the pathogenesis-related gene PR-1a in NahG potato plants. Taken together, our data indicate that SA is involved in local and systemic defense responses mediated by the Nb gene in Solanum tuberosum. This is the first report to show that basal levels of SA correlate with hypersensitive resistance to PVX.

scholarly journals Homologues of a single resistance-gene cluster in potato confer resistance to distinct pathogens: a virus and a nematode

2000 ◽  
Vol 23 (5) ◽  
pp. 567-576 ◽  
Author(s):  
Edwin A. G. van der Vossen ◽  
Jeroen N. A. M. Rouppe van der Voort ◽  
Konstantin Kanyuka ◽  
Abdel Bendahmane ◽  
Hans Sandbrink ◽  
...  
Keyword(s):  
Gene Cluster ◽  
Resistance Gene ◽  
Resistance Gene Cluster
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