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Development of tightly linked markers and identification of candidate genes for Fusarium crown rot resistance in barley by exploiting a near-isogenic line-derived population

Citation

Jiang, Y and Habib, A and Zheng, Z and Zhou, M and Wei, Y and Zheng, Y-L and Liu, C, Development of tightly linked markers and identification of candidate genes for Fusarium crown rot resistance in barley by exploiting a near-isogenic line-derived population, Theoretical and Applied Genetics, 132, (1) pp. 217-225. ISSN 0040-5752 (2019) [Refereed Article]


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DOI: doi:10.1007/s00122-018-3209-0

Abstract

Fusarium crown rot (FCR) is a chronic and severe disease in cereals in semi-arid regions worldwide. Previous studies showed that FCR assessment could be affected by many factors including plant height, growth rate as well as drought stress. Thus, accurate assessment, which is essential for detailed mapping of any locus conferring FCR resistance, is difficult. Targeting one of the resistance loci reported earlier, we developed a near-isogenic line-derived population consisting of 1820 F9 lines. By analysing this population, the Qcrs.cpi-4H locus was mapped to an interval of 0.09 cM covering a physical distance of about 637 kb and 13 markers co-segregating with the targeted locus were developed. Candidate genes underlying the resistance locus were identified by analysing the expression and sequence variation of genes in the targeted interval. The accurate localization and the development of co-segregating markers should facilitate the incorporation of this large-effect QTL into breeding programmes as well as the cloning of gene(s) underlying the locus.

Item Details

Item Type:Refereed Article
Keywords:barley, crown rot, Fusarium
Research Division:Agricultural and Veterinary Sciences
Research Group:Crop and Pasture Production
Research Field:Agro-ecosystem Function and Prediction
Objective Division:Plant Production and Plant Primary Products
Objective Group:Winter Grains and Oilseeds
Objective Field:Barley
UTAS Author:Zhou, M (Professor Meixue Zhou)
ID Code:136234
Year Published:2019
Web of Science® Times Cited:1
Deposited By:Zoology
Deposited On:2019-12-09
Last Modified:2020-01-07
Downloads:0

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