The rice bacterial blight resistance gene xa5 encodes a novel form of disease resistance

被引：268

作者：

Iyer, AS ^{[1
]}

McCouch, SR ^{[1
]}

机构：

[1] Cornell Univ, Dept Plant Breeding & Genet, Ithaca, NY 14853 USA

来源：

MOLECULAR PLANT-MICROBE INTERACTIONS | 2004年 / 17卷 / 12期

关键词：

Oryzae sativa; positional cloning; R gene;

D O I：

10.1094/MPMI.2004.17.12.1348

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The rice xa5 gene for disease resistance to Xanthomonas oryzae pv. oryzae has been positionally cloned and encodes the gamma subunit of transcription factor IIA (TFIIAgamma). TFIIAgamma is a general eukaryotic transcription factor with no previously known role in disease resistance. xa5 is unusual in that it is recessive and does not conform to one of the typical resistance gene structural classes. Sequencing of TFIIAgamma in resistant and susceptible isolines revealed two nucleotide substitutions resulting in an amino acid change between resistant and susceptible cultivars. This association was conserved across 27 resistant and nine susceptible rice lines in the Aus-Boro group.

引用

页码：1348 / 1354

页数：7

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