scholarly journals Convergent Evolution of Disease Resistance Gene Specificity in Two Flowering Plant Families

2004 ◽  
Vol 16 (2) ◽  
pp. 309-318 ◽  
Author(s):  
Tom Ashfield ◽  
Laura E. Ong ◽  
Kan Nobuta ◽  
Christopher M. Schneider ◽  
Roger W. Innes
Keyword(s):  
Disease Resistance ◽  
Resistance Gene ◽  
Convergent Evolution ◽  
Flowering Plant ◽  
Disease Resistance Gene ◽  
Plant Families

Cloning and Analysis of NBS-LRR Type Disease Resistance Gene Analogs from Rosa rubus in Yunnan

2012 ◽  
Vol 34 (1) ◽  
pp. 56
Author(s):  
Ling CHEN ◽  
Hao ZHANG ◽  
Xian-Qin QIU ◽  
Hui-Jun YAN ◽  
Qi-Gang WANG ◽  
...  
Keyword(s):  
Disease Resistance ◽  
Resistance Gene ◽  
Disease Resistance Gene ◽  
Resistance Gene Analogs

Organization, Expression and Evolution of a Disease Resistance Gene Cluster in Soybean

Genetics ◽  
2002 ◽  
Vol 162 (4) ◽  
pp. 1961-1977
Author(s):  
Michelle A Graham ◽  
Laura Fredrick Marek ◽  
Randy C Shoemaker
Keyword(s):  
Disease Resistance ◽  
Resistance Gene ◽  
Resistance Genes ◽  
Developmental Stages ◽  
Gene Evolution ◽  
Pcr Amplification ◽  
Disease Resistance Genes ◽  
Disease Resistance Gene ◽  
R Genes ◽  
Specific Primers

Abstract PCR amplification was previously used to identify a cluster of resistance gene analogues (RGAs) on soybean linkage group J. Resistance to powdery mildew (Rmd-c), Phytophthora stem and root rot (Rps2), and an ineffective nodulation gene (Rj2) map within this cluster. BAC fingerprinting and RGA-specific primers were used to develop a contig of BAC clones spanning this region in cultivar “Williams 82” [rps2, Rmd (adult onset), rj2]. Two cDNAs with homology to the TIR/NBD/LRR family of R-genes have also been mapped to opposite ends of a BAC in the contig Gm_Isb001_091F11 (BAC 91F11). Sequence analyses of BAC 91F11 identified 16 different resistance-like gene (RLG) sequences with homology to the TIR/NBD/LRR family of disease resistance genes. Four of these RLGs represent two potentially novel classes of disease resistance genes: TIR/NBD domains fused inframe to a putative defense-related protein (NtPRp27-like) and TIR domains fused inframe to soybean calmodulin Ca2+-binding domains. RT-PCR analyses using gene-specific primers allowed us to monitor the expression of individual genes in different tissues and developmental stages. Three genes appeared to be constitutively expressed, while three were differentially expressed. Analyses of the R-genes within this BAC suggest that R-gene evolution in soybean is a complex and dynamic process.

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
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