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Mapping of the quantitative trait locus (QTL) conferring partial resistance to rice leaf blast disease


Citation

Ashkani, Sadegh and Yusop, Mohd Rafii and Harun, Abdul Rahim and Latif, Mohammad Abdul (2013) Mapping of the quantitative trait locus (QTL) conferring partial resistance to rice leaf blast disease. Biotechnology Letters, 35 (5). pp. 799-810. ISSN 0141-5492; ESSN: 1573-6776

Abstract / Synopsis

Malaysian rice, Pongsu Seribu 2, has wide-spectrum resistance against blast disease. Chromosomal locations conferring quantitative resistance were detected by linkage mapping with SSRs and quantitative trait locus (QTL) analysis. For the mapping population, 188 F3 families were derived from a cross between the susceptible cultivar, Mahsuri, and a resistant variety, Pongsu Seribu 2. Partial resistance to leaf blast in the mapping population was assessed. A linkage map covering ten chromosomes and consisting of 63 SSR markers was constructed. 13 QTLs, including 6 putative and 7 putative QTLs, were detected on chromosomes 1, 2, 3, 5, 6, 10, 11 and 12. The resulting phenotypic variation due to a single QTL ranged from 2 to 13 %. These QTLs accounted for approx. 80 % of the total phenotypic variation within the F3 population. Therefore, partial resistance to blast in Pongsu Seribu 2 is due to combined effects of multiple loci with major and minor effects.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Institute of Tropical Agriculture
DOI Number: 10.1007/s10529-012-1130-1
Publisher: Springer
Keywords: Leaf blast; Partial resistance; Quantitative trait locus (QTL); Rice (Oryza sativa); SSR markers
Depositing User: Nurul Ainie Mokhtar
Date Deposited: 20 Jun 2016 16:08
Last Modified: 20 Jun 2016 16:08
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1007/s10529-012-1130-1
URI: http://psasir.upm.edu.my/id/eprint/29242
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