Molecular tagging of a stripe rust resistance gene in Aegilops tauschii

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	Molecular tagging of a stripe rust resistance gene in Aegilops tauschii
	Huang, Lin 2; Zhang, Lian-Quan 2; Liu, Bao-Long 1; Yan, Ze-Hong 2; Zhang, Bo 1; Zhang, Huai-Gang 1; Zheng, You-Liang 2; Liu, Deng-Cai 1,2
	2011-05-01
发表期刊	EUPHYTICA
ISSN	0014-2336
卷号	179 期号:2 页码:313-318
文章类型	Article
摘要	Stripe rust, caused by Puccinia striiformis f. sp. tritici (PST), is one of the most important diseases of common wheat (Triticum aestivum L.). China has the largest stripe rust epidemic areas in the world and yield losses can be large. Aegilops tauschii Coss, the D-genome progenitor of common wheat, includes two subspecies, tauschii and strangulata (Eig) Tzvel. The ssp. strangulata accession AS2388 is highly resistant to the prevailing physiological races of PST in China, and possesses a single dominant gene for stripe rust resistance. In order to tag this gene, AS2388 was crossed with the highly susceptible ssp. tauschii accession AS87. The parents, F(2) plants, and F(2:3) families were tested at adult plant stage in field trials with six currently prevailing races. Simple sequence repeat (SSR) primers were used to identify molecular markers linked to the resistance gene. SSR markers Xwmc285 and Xwmc617 were linked to the resistance gene on chromosome arm 4DS flanking it at 1.7 and 34.6 cM, respectively. Based on the chromosomal location, this gene temporarily designated as YrAS2388 is probably novel. The resistance in Ae. tauschii AS2388 was partially expressed in two newly developed synthetic hexaploid backgrounds.; Stripe rust, caused by Puccinia striiformis f. sp. tritici (PST), is one of the most important diseases of common wheat (Triticum aestivum L.). China has the largest stripe rust epidemic areas in the world and yield losses can be large. Aegilops tauschii Coss, the D-genome progenitor of common wheat, includes two subspecies, tauschii and strangulata (Eig) Tzvel. The ssp. strangulata accession AS2388 is highly resistant to the prevailing physiological races of PST in China, and possesses a single dominant gene for stripe rust resistance. In order to tag this gene, AS2388 was crossed with the highly susceptible ssp. tauschii accession AS87. The parents, F(2) plants, and F(2:3) families were tested at adult plant stage in field trials with six currently prevailing races. Simple sequence repeat (SSR) primers were used to identify molecular markers linked to the resistance gene. SSR markers Xwmc285 and Xwmc617 were linked to the resistance gene on chromosome arm 4DS flanking it at 1.7 and 34.6 cM, respectively. Based on the chromosomal location, this gene temporarily designated as YrAS2388 is probably novel. The resistance in Ae. tauschii AS2388 was partially expressed in two newly developed synthetic hexaploid backgrounds.
关键词	Puccinia Striiformis Yellow Rust Ssr Marker Molecular Mapping Wheat
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	F-SP TRITICI ; PUCCINIA-STRIIFORMIS ; COMMON WHEAT ; CHINA ; HEXAPLOIDS ; VIRULENCE ; TURGIDUM ; MAP ; DNA
收录类别	SCI
语种	英语
WOS研究方向	Agriculture ; Plant Sciences
WOS类目	Agronomy ; Plant Sciences ; Horticulture
WOS记录号	WOS:000289300300010
引用统计	被引频次：18[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/1552
专题	中国科学院西北高原生物研究所
作者单位	1.Chinese Acad Sci, Key Lab Adaptat & Evolut Plateau Biota, NW Inst Plateau Biol, Xining 810001, Peoples R China 2.Sichuan Agr Univ, Triticeae Res Inst, Chengdu 611130, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Huang, Lin,Zhang, Lian-Quan,Liu, Bao-Long,et al. Molecular tagging of a stripe rust resistance gene in Aegilops tauschii[J]. EUPHYTICA,2011,179(2):313-318.
APA	Huang, Lin.,Zhang, Lian-Quan.,Liu, Bao-Long.,Yan, Ze-Hong.,Zhang, Bo.,...&Liu, Deng-Cai.(2011).Molecular tagging of a stripe rust resistance gene in Aegilops tauschii.EUPHYTICA,179(2),313-318.
MLA	Huang, Lin,et al."Molecular tagging of a stripe rust resistance gene in Aegilops tauschii".EUPHYTICA 179.2(2011):313-318.

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