Genetic Diversity of the Wheat Landrace Youzimai from Different Geographic Regions Investigated with Morphological Traits, Seedling Resistance to Powdery Mildew, Gliadin and Microsatellite Markers

doi:10.1556/CRC.40.2012.1.11

CORC > 中国农业科学院 > 作物科学研究所

	Genetic Diversity of the Wheat Landrace Youzimai from Different Geographic Regions Investigated with Morphological Traits, Seedling Resistance to Powdery Mildew, Gliadin and Microsatellite Markers
	Li, X. J.1,2; Xu, X.1,3; Yang, X. M.1; Li, X. Q.1; Liu, W. H.1; Gao, A. N.1; Li, L. H.1
刊名	CEREAL RESEARCH COMMUNICATIONS
	2012
卷号	40 期号:1 页码:95-106
关键词	wheat landrace morphology powdery mildew gliadin microsatellite genetic diversity
ISSN号	0133-3720
DOI	10.1556/CRC.40.2012.1.11
通讯作者	Li, X. J.
英文摘要	Youzimai is a widespread wheat landrace and has been used extensively in breeding programs in China. In order to assess the genetic variation between and within Youzimai accessions, samples of 31 landrace accessions of wheat, all called 'Youzimai', were collected from 6 geographic regions in China and evaluated using morphological traits, seedling resistance to powdery mildew, gliadin and microsatellite markers. Typical differences among accessions were observed in morphological characteristics. Forty-five (58.4%) of 77 assayed SSR markers showed polymorphism over the entire collection and total 226 alleles were identified with an average of 5.02 alleles per locus. SSR data indicated that the accessions from Hebei province were the most diverse, as evidenced by greatest number of region-specific alleles and highest diversity index. These accessions, therefore, probably experienced the most substantial morphological and molecular evolution as a result of various natural and anthropomorphic influences. On the other hand, differentiation in gliadin phenotypes was found among seeds within 80.6% of total accessions and average 61.5% of entire collections showed heterogeneous and comprised resistant plants in reaction to powdery mildew, suggesting the presence of a wide diversity within the wheat landrace. By developing an intimate knowledge of the available wheat genotypes, appropriate selections can be made for commercial application in order to conserve and exploit the diversity of the wheat landraces.
学科主题	Agronomy ; AGRONOMY
语种	英语
出版者	AKADEMIAI KIADO RT
WOS记录号	WOS:000300983000011
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/5195]
专题	作物科学研究所
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.Henan Inst Sci & Technol, Sch Life Sci & Technol, Xinxiang 453003, Peoples R China 3.Xinxiang Univ, Dept Life Sci & Technol, Xinxiang 453003, Peoples R China
推荐引用方式 GB/T 7714	Li, X. J.,Xu, X.,Yang, X. M.,et al. Genetic Diversity of the Wheat Landrace Youzimai from Different Geographic Regions Investigated with Morphological Traits, Seedling Resistance to Powdery Mildew, Gliadin and Microsatellite Markers[J]. CEREAL RESEARCH COMMUNICATIONS,2012,40(1):95-106.
APA	Li, X. J..,Xu, X..,Yang, X. M..,Li, X. Q..,Liu, W. H..,...&Li, L. H..(2012).Genetic Diversity of the Wheat Landrace Youzimai from Different Geographic Regions Investigated with Morphological Traits, Seedling Resistance to Powdery Mildew, Gliadin and Microsatellite Markers.CEREAL RESEARCH COMMUNICATIONS,40(1),95-106.
MLA	Li, X. J.,et al."Genetic Diversity of the Wheat Landrace Youzimai from Different Geographic Regions Investigated with Morphological Traits, Seedling Resistance to Powdery Mildew, Gliadin and Microsatellite Markers".CEREAL RESEARCH COMMUNICATIONS 40.1(2012):95-106.