Molecular tagging of a stripe rust resistance gene in Aegilops tauschii

NWIPB OpenIR

	Molecular tagging of a stripe rust resistance gene in Aegilops tauschii
	Huang, Lin ; Zhang, Lian-Quan ; Liu, Bao-Long ; Yan, Ze-Hong ; Zhang, Bo ; Zhang, Huai-Gang ; Zheng, You-Liang ; Liu, Deng-Cai
	2011-05-01
发表期刊	EUPHYTICA ; Huang, L; Zhang, LQ; Liu, BL; Yan, ZH; Zhang, B; Zhang, HG; Zheng, YL; Liu, DC.Molecular tagging of a stripe rust resistance gene in Aegilops tauschii,EUPHYTICA,2011,179(2):313-318
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.
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/50996
专题	中国科学院西北高原生物研究所
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, Huang, L; Zhang, LQ; Liu, BL; Yan, ZH; Zhang, B; Zhang, HG; Zheng, YL; Liu, DC.Molecular tagging of a stripe rust resistance gene in Aegilops tauschii,EUPHYTICA,2011,179(2):313-318,2011.
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.
MLA	Huang, Lin,et al."Molecular tagging of a stripe rust resistance gene in Aegilops tauschii".EUPHYTICA (2011).