Xa21D Encodes a Receptor-Like Molecule with a Leucine-Rich Repeat Domain That Determines Race-Specific Recognition and Is Subject to Adaptive Evolution

The rice Xa21 gene confers resistance to Xanthomonas oryzae pv oryzae in a race-specific manner. Analysis of the inheritance patterns and resistance spectra of transgenic plants carrying six Xa21 gene family members indicated that one member, designated Xa21D, displayed a resistance spectrum identic...

Full description

Saved in:
Bibliographic Details
Published in:The Plant cell 1998-05, Vol.10 (5), p.765-779
Main Authors: Wang, Guo-Liang, Ruan, De-Ling, Song, Wen-Yuan, Sideris, Steve, Chen, LiLi, Pi, Li-Ya, Zhang, Shiping, Zhang, Zhen, Fauquet, Claude, Gaut, Brandon S., Whalen, Maureen C., Ronald, Pamela C.
Format: Article
Language:English
Subjects:
Adaptation, Physiological
Amino Acid Sequence
Amino acids
Biological Evolution
Dimerization
Disease Susceptibility
DNA
Evolution, Molecular
Family members
Leucine
Ligands
Molecular Sequence Data
Multigene Family
Nucleotides
Oryza - genetics
Oryza - microbiology
Oryza - physiology
Plant cells
Plant Diseases
Plant Proteins - biosynthesis
Plant Proteins - chemistry
Plant Proteins - genetics
Plants
Plants, Genetically Modified
Polymerase Chain Reaction
Protein-Serine-Threonine Kinases - biosynthesis
Protein-Serine-Threonine Kinases - chemistry
Protein-Serine-Threonine Kinases - genetics
Receptors
Receptors, Cell Surface - biosynthesis
Receptors, Cell Surface - genetics
Retroelements
Rice
Sequence Alignment
Transgenic plants
Xanthomonas - genetics
Xanthomonas - pathogenicity
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The rice Xa21 gene confers resistance to Xanthomonas oryzae pv oryzae in a race-specific manner. Analysis of the inheritance patterns and resistance spectra of transgenic plants carrying six Xa21 gene family members indicated that one member, designated Xa21D, displayed a resistance spectrum identical to that observed for Xa21 but conferred only partial resistance. Xa21D encodes a receptor-like protein carrying leucine-rich repeat (LRR) motifs in the presumed extracellular domain. The Xa21D transcript terminates shortly after the stop codon introduced by the retrotransposon Retrofit. Comparison of nucleotide substitutions in the LRR coding regions of Xa21 and Xa21D provided evidence of adaptive selection. Both functional and evolutionary evidence indicates that the Xa21D LRR domain controls race-specific pathogen recognition.
ISSN:1040-4651
1532-298X
DOI:10.1105/tpc.10.5.765