PmLX66 and PmW14: New Alleles of Pm2 for Resistance to Powdery Mildew in the Chinese Winter Wheat Cultivars Liangxing 66 and Wennong 14

doi:10.1094/PDIS-10-14-1079-RE

	PmLX66 and PmW14: New Alleles of Pm2 for Resistance to Powdery Mildew in the Chinese Winter Wheat Cultivars Liangxing 66 and Wennong 14
	Sun, Yanling 1; Zou, Jingwei 1,2; Sun, Huigai 1,2; Song, Wei 1,2; Wang, Xiaoming 1; Li, Hongjie 1
刊名	PLANT DISEASE
	2015
卷号	99 期号:8 页码:1118-1124
ISSN号	0191-2917
DOI	10.1094/PDIS-10-14-1079-RE
通讯作者	Sun, Yanling
英文摘要	Wheat powdery mildew (caused by Blumeria graminis f. sp. tritici) can be effectively managed by growing resistant cultivars. 'Liangxing 66' and 'Wennong 14' are the current winter wheat cultivars grown in northern China where powdery mildew is epidemic. Both cultivars have been demonstrated to carry single dominant genes for resistance to powdery mildew, tentatively designated PmLX66 and PrnW14, on chromosome 5DS and share common linked markers with Pm2. Allelism tests were performed using a total of 15,657 plants of F-2 segregating populations to determine the relationship between PmLX66, PmW14, and Pm2. All progeny from the crosses Liangxing 66 x 'Ulka/8Chancellor (Ulka/8Cc), Wennong 14 x Ulka/8Cc, and Liangxing 66 x Wennong 14 were resistant when tested with B. graminis f. sp. tritici isolate E20, indicating that PmLX66 and PmW14 are allelic to Pm2 and to each other. Liangxing 66 was resistant to 76.7% of the 60 B. graminis f. sp. tritici isolates from northern China, a slightly smaller proportion than Ulka/8Cc (78.3%). However, Wennong 14 (85.0%) was more resistant against this set of B. graminis f. sp. tritici isolates than Ulka/8Cc and Liangxing 66. Liangxing 66 and Wennong 14 differed from Ulka/8Cc in respect to a number of B. graminis f. sp. tritici isolates. Based on these findings, PmLX66 and PmW14 are new alleles at the Pm2 locus.
学科主题	Plant Sciences
语种	英语
出版者	AMER PHYTOPATHOLOGICAL SOC
WOS记录号	WOS:000360866300009
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4688]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China 2.Hebei Normal Univ Sci & Technol, Coll Life Sci & Technol, Qinhuangdao 066004, Peoples R China
推荐引用方式 GB/T 7714	Sun, Yanling,Zou, Jingwei,Sun, Huigai,et al. PmLX66 and PmW14: New Alleles of Pm2 for Resistance to Powdery Mildew in the Chinese Winter Wheat Cultivars Liangxing 66 and Wennong 14[J]. PLANT DISEASE,2015,99(8):1118-1124.
APA	Sun, Yanling,Zou, Jingwei,Sun, Huigai,Song, Wei,Wang, Xiaoming,&Li, Hongjie.(2015).PmLX66 and PmW14: New Alleles of Pm2 for Resistance to Powdery Mildew in the Chinese Winter Wheat Cultivars Liangxing 66 and Wennong 14.PLANT DISEASE,99(8),1118-1124.
MLA	Sun, Yanling,et al."PmLX66 and PmW14: New Alleles of Pm2 for Resistance to Powdery Mildew in the Chinese Winter Wheat Cultivars Liangxing 66 and Wennong 14".PLANT DISEASE 99.8(2015):1118-1124.