气候变化领域集成服务门户(CCPortal): Fine mapping of a large-effect QTL conferring Fusarium crown rot resistance on the long arm of chromosome 3B in hexaploid wheat

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DOI	10.1186/s12864-015-2105-0
	Fine mapping of a large-effect QTL conferring Fusarium crown rot resistance on the long arm of chromosome 3B in hexaploid wheat
	Zheng, Zhi; Ma, Jian; Stiller, Jiri; Zhao, Qiang; Feng, Qi; Choulet, Frederic; Feuillet, Catherine; Zheng, You-Liang; Wei, Yuming; Han, Bin; Yan, Guijun; Manners, John M.; Liu, Chunji
发表日期	2015
ISSN	1471-2164
卷号	16
英文摘要	Background: Fusarium crown rot (FCR) is a major cereal disease in semi-arid areas worldwide. Of the various QTL reported, the one on chromosome arm 3BL (Qcrs.cpi-3B) has the largest effect that can be consistently detected in different genetic backgrounds. Nine sets of near isogenic lines (NILs) for this locus were made available in a previous study. To identify markers that could be reliably used in tagging the Qcrs.cpi-3B locus, a NIL-derived population consisting of 774 F-10 lines were generated and exploited to assess markers selected from the existing linkage map and generated from sequences of the 3B pseudomolecule. Results: This is the first report on fine mapping a QTL conferring FCR resistance in wheat. By three rounds of linkage mapping using the NILs and the NIL-derived population, the Qcrs.cpi-3B locus was mapped to an interval of 0.7 cM covering a physical distance of about 1.5 Mb. Seven markers co-segregating with the locus were developed. This interval contains a total of 63 gene-coding sequences based on the 3B pseudomolecule, and six of them were known to encode disease resistance proteins. Several of the genes in this interval were among those responsive to FCR infection detected in an earlier study. Conclusions: The accurate localization of the Qcrs.cpi-3B locus and the development of the markers co-segregating with it should facilitate the incorporation of this large-effect QTL conferring FCR resistance into breeding programs as well as the cloning of the gene(s) underlying the QTL.
关键词	Fusarium crown rot Fine mapping Hexaploid wheat Co-segregating SSR marker
学科领域	Biotechnology & Applied Microbiology; Genetics & Heredity
语种	英语
WOS研究方向	Biotechnology & Applied Microbiology ; Genetics & Heredity
来源期刊	BMC GENOMICS
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111796
作者单位	CSIRO Agr, St Lucia, Qld 4067, Australia
推荐引用方式 GB/T 7714	Zheng, Zhi,Ma, Jian,Stiller, Jiri,et al. Fine mapping of a large-effect QTL conferring Fusarium crown rot resistance on the long arm of chromosome 3B in hexaploid wheat[J]. 中国科学院西北生态环境资源研究院,2015,16.
APA	Zheng, Zhi.,Ma, Jian.,Stiller, Jiri.,Zhao, Qiang.,Feng, Qi.,...&Liu, Chunji.(2015).Fine mapping of a large-effect QTL conferring Fusarium crown rot resistance on the long arm of chromosome 3B in hexaploid wheat.BMC GENOMICS,16.
MLA	Zheng, Zhi,et al."Fine mapping of a large-effect QTL conferring Fusarium crown rot resistance on the long arm of chromosome 3B in hexaploid wheat".BMC GENOMICS 16(2015).