The Gene Sr33, an Ortholog of Barley Mla Genes, Encodes Resistance to Wheat Stem Rust Race Ug99

被引：275

作者：

Periyannan, Sambasivam ^{[1
]}

Moore, John ^{[1
]}

Ayliffe, Michael ^{[1
]}

Bansal, Urmil ^{[2
]}

Wang, Xiaojing ^{[4
,6
,7
]}

Huang, Li ^{[4
]}

Deal, Karin ^{[3
]}

Luo, Mingcheng ^{[3
]}

Kong, Xiuying ^{[5
]}

Bariana, Harbans ^{[2
]}

Mago, Rohit ^{[1
]}

McIntosh, Robert ^{[2
]}

Dodds, Peter ^{[1
]}

Dvorak, Jan ^{[3
]}

Lagudah, Evans ^{[1
]}

机构：

[1] Commonwealth Sci & Ind Res Org CSIRO Plant Ind, Canberra, ACT 2601, Australia

[2] Univ Sydney, Plant Breeding Inst Cobbitty, Narellan, NSW 2567, Australia

[3] Univ Calif Davis, Dept Plant Sci, Davis, CA 95616 USA

[4] Montana State Univ, Dept Plant Sci & Plant Pathol, Bozeman, MT 59717 USA

[5] Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China

[6] Northwest Agr & Forestry Univ, State Key Lab Crop Stress Biol Arid Areas, Yangling 712100, Shaanxi, Peoples R China

[7] Northwest Agr & Forestry Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China

来源：

SCIENCE | 2013年 / 341卷 / 6147期

基金：

美国国家科学基金会; 比尔及梅琳达.盖茨基金会;

关键词：

POWDERY MILDEW; AEGILOPS-TAUSCHII; HEXAPLOID WHEAT; LEAF RUST; GENOME; LOCUS; LINES;

D O I：

10.1126/science.1239028

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Wheat stem rust, caused by the fungus Puccinia graminis f. sp. tritici, afflicts bread wheat (Triticum aestivum). New virulent races collectively referred to as "Ug99" have emerged, which threaten global wheat production. The wheat gene Sr33, introgressed from the wild relative Aegilops tauschii into bread wheat, confers resistance to diverse stem rust races, including the Ug99 race group. We cloned Sr33, which encodes a coiled-coil, nucleotide-binding, leucine-rich repeat protein. Sr33 is orthologous to the barley (Hordeum vulgare) Mla mildew resistance genes that confer resistance to Blumeria graminis f. sp. hordei. The wheat Sr33 gene functions independently of RAR1, SGT1, and HSP90 chaperones. Haplotype analysis from diverse collections of Ae. tauschii placed the origin of Sr33 resistance near the southern coast of the Caspian Sea.

引用

页码：786 / 788

页数：3

共 18 条

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