scholarly journals Identification of a New Rice Blast Resistance Gene,Pid3, by Genomewide Comparison of Paired Nucleotide-Binding Site–Leucine-Rich Repeat Genes and Their Pseudogene Alleles Between the Two Sequenced Rice Genomes

Genetics ◽  
2009 ◽  
Vol 182 (4) ◽  
pp. 1303-1311 ◽  
Author(s):  
Junjun Shang ◽  
Yong Tao ◽  
Xuewei Chen ◽  
Yan Zou ◽  
Cailin Lei ◽  
...  
Genetics ◽  
2008 ◽  
Vol 180 (4) ◽  
pp. 2267-2276 ◽  
Author(s):  
Ikuo Ashikawa ◽  
Nagao Hayashi ◽  
Hiroko Yamane ◽  
Hiroyuki Kanamori ◽  
Jianzhong Wu ◽  
...  

2017 ◽  
Author(s):  
Hiroki Takagi ◽  
Akira Abe ◽  
Aiko Uemura ◽  
Kaori Oikawa ◽  
Hiroe Utsushi ◽  
...  

SUMMARYNucleotide-binding, leucine-rich repeat receptors (NLRs) are conserved cytosolic receptors that recognize pathogen effectors and trigger immunity in plants. Recent studies indicate that NLRs function in pairs. Rice resistance gene Pii has been known to confer resistance against rice blast pathogen Magnaporthe oryzae carrying AVR-Pii. Previously we reported isolation of Pii gene from the rice cultivar Hitomebore (Takagi et al. 2013). To further understand rice components required for Pii-mediated resistance, we screened 5,600 mutant lines of Hitomebore cultivar and identified two mutants that lost Pii resistance without any changes in Pii gene sequence. Application of MutMap-Gap, the whole genome sequencing-based method of mutation identification, to the two mutants revealed that they have mutations in another NLR gene located close to Pii. The F1 plants derived from a cross of the two mutants showed pii phenotype, demonstrating that the newly identified NLR gene is indeed a component of Pii resistance. We thus designate the previously isolated Pii gene as Pii-1 and the newly isolated NLR gene as Pii-2.


Crop Science ◽  
2016 ◽  
Vol 56 (3) ◽  
pp. 1001-1008 ◽  
Author(s):  
Yan Liu ◽  
Yulin Jia ◽  
David Gealy ◽  
David M. Goad ◽  
Ana L. Caicedo ◽  
...  

Genome ◽  
1998 ◽  
Vol 41 (6) ◽  
pp. 782-788 ◽  
Author(s):  
W Spielmeyer ◽  
M Robertson ◽  
N Collins ◽  
D Leister ◽  
P Schulze-Lefert ◽  
...  

In this study, resistance gene analogs (RGAs) which were isolated from monocot crop species (wheat, barley, maize and rice) and contained conserved sequence motifs found within the nucleotide binding site - leucine rich repeat (NBS-LRR) class of resistance genes, were used to assess their distribution in the wheat genome. The RGAs showed 30-70% amino acid identity to a previously isolated monocot NBS-LRR sequence from the Cre3 locus for cereal cyst nematode (CCN) resistance in wheat. We used the RGAs as probes to identify and map loci in wheat using recombinant inbred lines of an international Triticeae mapping family. RGA loci mapped across all seven homoeologous chromosome groups of wheat. This study demonstrated that the RGA mapping approach provides potential entry points toward identifying resistance gene candidates in wheat.Key words: wheat, disease resistance genes, nucleotide binding site, leucine rich repeat, resistance gene analogs.


Sign in / Sign up

Export Citation Format

Share Document