Molecular mapping of stripe rust resistance gene YrCH42 in Chinese wheat cultivar Chuanmai 42 and its allelism with Yr24 and Yr26

doi:10.1007/s00122-006-0245-y

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	Molecular mapping of stripe rust resistance gene YrCH42 in Chinese wheat cultivar Chuanmai 42 and its allelism with Yr24 and Yr26
	Li, GQ; Li, ZF; Yang, WY; Zhang, Y; He, ZH; Xu, SC; Singh, RP; Qu, YY; Xia, XC
刊名	THEORETICAL AND APPLIED GENETICS
	2006
卷号	112 期号:8 页码:1434-1440
ISSN号	0040-5752
DOI	10.1007/s00122-006-0245-y
通讯作者	Li, GQ
英文摘要	Stripe rust, caused by Puccinia striiformis f. sp. tritici (PST), is one of the most devastating diseases in common wheat (Triticum aestivum L.) worldwide. The objectives of this study were to map a stripe rust resistance gene in Chinese wheat cultivar Chuanmai 42 using molecular markers and to investigate its allelism with Yr24 and Yr26. A total of 787 F-2 plants and 186 F-3 lines derived from a cross between resistant cultivar Chuanmai 42 and susceptible line Taichung 29 were used for resistance gene tagging. Also 197 F-2 plants from the cross Chuanmai 42xYr24/3Avocet S and 726 F-2 plants from Chuanmai 42xYr26/3Avocet S were employed for allelic test of the resistance genes. In all, 819 pairs of wheat SSR primers were used to test the two parents, as well as resistant and susceptible bulks. Subsequently, nine polymorphic markers were employed for genotyping the F-2 and F-3 populations. Results indicated that the stripe rust resistance in Chuanmai 42 was conferred by a single dominant gene, temporarily designated YrCH42, located close to the centromere of chromosome 1B and flanked by nine SSR markers Xwmc626, Xgwm273, Xgwm11, Xgwm18, Xbarc137, Xbarc187, Xgwm498, Xbarc240 and Xwmc216. The resistance gene was closely linked to Xgwm498 and Xbarc187 with genetic distances of 1.6 and 2.3 cM, respectively. The seedling tests with 26 PST isolates and allelic tests indicated that YrCH42, Yr24 and Yr26 are likely to be the same gene.
学科主题	Agronomy ; Plant Sciences ; Genetics & Heredity ; Horticulture ; AGRONOMY ; GENETICS & HEREDITY ; HORTICULTURE ; PLANT SCIENCES
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000237509700004
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5739]
专题	作物科学研究所
作者单位	(1)Chinese Acad Agr Sci, Inst Crop Sci, Natl Wheat Improvement Ctr, Beijing 100081, Peoples R China;(2)Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Sichuan, Peoples R China;(3)Xinjiang Agr Univ, Fac Agron, Urumqi 830052, Xinjiang, Peoples R China;(4)Care Of CAAS, Int Maize & Wheat Improvement Ctr, China Off, CIMMYT, Beijing 100081, Peoples R China;(5)CAAS, Inst Plant Protect, Beijing 100094, Peoples R China;(6)CIMMYT, Int Maize & Wheat Improvement Ctr, Mexico City 06600, DF, Mexico
推荐引用方式 GB/T 7714	Li, GQ,Li, ZF,Yang, WY,et al. Molecular mapping of stripe rust resistance gene YrCH42 in Chinese wheat cultivar Chuanmai 42 and its allelism with Yr24 and Yr26[J]. THEORETICAL AND APPLIED GENETICS,2006,112(8):1434-1440.
APA	Li, GQ.,Li, ZF.,Yang, WY.,Zhang, Y.,He, ZH.,...&Xia, XC.(2006).Molecular mapping of stripe rust resistance gene YrCH42 in Chinese wheat cultivar Chuanmai 42 and its allelism with Yr24 and Yr26.THEORETICAL AND APPLIED GENETICS,112(8),1434-1440.
MLA	Li, GQ,et al."Molecular mapping of stripe rust resistance gene YrCH42 in Chinese wheat cultivar Chuanmai 42 and its allelism with Yr24 and Yr26".THEORETICAL AND APPLIED GENETICS 112.8(2006):1434-1440.