Genetic mapping of a putative Agropyron cristatum-derived powdery mildew resistance gene by a combination of bulked segregant analysis and single nucleotide polymorphism array

doi:10.1007/s11032-015-0292-7

	Genetic mapping of a putative Agropyron cristatum-derived powdery mildew resistance gene by a combination of bulked segregant analysis and single nucleotide polymorphism array
	Lu, Yuqing; Wu, Xiaoyang; Yao, Miaomiao; Zhang, Jinpeng; Liu, Weihua; Yang, Xinming; Li, Xiuquan; Du, Juan; Gao, Ainong; Li, Lihui
刊名	MOLECULAR BREEDING
	2015
卷号	35 期号:3 页码:-
关键词	Agropyron cristatum Powdery mildew Bulked segregant analysis Single nucleotide polymorphism
ISSN号	1380-3743
DOI	10.1007/s11032-015-0292-7
通讯作者	Lu, Yuqing
英文摘要	The wheat relative Agropyron cristatum (L.) Gaertn. (2n = 4x = 28; genomes PPPP) has often been used as a donor of useful genetic variation for wheat improvement, including enhanced disease resistance to powdery mildew caused by Blumeria graminis f. sp. tritici (Bgt). In this report, resistance to powdery mildew was transferred from A. cristatum to common wheat, and the resulting introgression line PB3558 exhibited all-stage resistance. To identify the resistance gene, genetic analysis was conducted using F2, F2: 3 and recombinant inbreed line populations derived from the cross of PB3558 and the susceptible cultivar Jing 4841. Segregation ratios from inoculation with Bgt isolate E09 indicated that the resistance was conferred by a single dominant gene, temporarily designated PmPB3558. Bulked segregant analysis (BSA) was applied to screen for molecular markers linked to PmPB3558, and five published markers were found. In order to increase the density of the genetic map, we developed ten novel single sequence repeat markers based on the single nucleotide polymorphism (SNP) loci with polymorphisms produced from a combination wheat 90 k SNP array and BSA. PmPB3558 was located on wheat chromosome arm 5DS and flanked by markers Xcfd81 and Xbwm25. Because there are other powdery mildew resistance genes located on 5DS, 21 Bgt isolates were used to compare the reaction differences. PmPB3558 showed unique reactions, suggesting that it was most likely a novel allele. This is the first documentation on transferring an alien powdery mildew resistance gene from A. cristatum, and the germplasm acquired in this study will be useful for broadening the genetic basis for wheat breeding.
学科主题	Agronomy ; Plant Sciences ; Genetics & Heredity ; Horticulture
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000351317500014
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4754]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Lu, Yuqing,Wu, Xiaoyang,Yao, Miaomiao,et al. Genetic mapping of a putative Agropyron cristatum-derived powdery mildew resistance gene by a combination of bulked segregant analysis and single nucleotide polymorphism array[J]. MOLECULAR BREEDING,2015,35(3):-.
APA	Lu, Yuqing.,Wu, Xiaoyang.,Yao, Miaomiao.,Zhang, Jinpeng.,Liu, Weihua.,...&Li, Lihui.(2015).Genetic mapping of a putative Agropyron cristatum-derived powdery mildew resistance gene by a combination of bulked segregant analysis and single nucleotide polymorphism array.MOLECULAR BREEDING,35(3),-.
MLA	Lu, Yuqing,et al."Genetic mapping of a putative Agropyron cristatum-derived powdery mildew resistance gene by a combination of bulked segregant analysis and single nucleotide polymorphism array".MOLECULAR BREEDING 35.3(2015):-.