QTL analysis of aluminium tolerance in barley, using gene-based markers

Barley is more sensitive than the other major cereal crops to aluminium (Al) toxicity. Here, a doubled haploid mapping population was exploited to study the inheritance of Al tolerance in barley. Quantitative trait locus (QTL) mapping was based on a genetic map constructed with genic markers. Al tol...

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Bibliographic Details
Published in:Cereal research communications 2009-12, Vol.37 (4), p.531-540
Main Authors: Navakode, S, A. Weidner, R. K. Varshney, U. Lohwasser, U. Scholz, A. Börner
Format: Article
Language:English
Subjects:
Agriculture
aluminium tolerance
Aluminum
Barley
Chromosomes
doubled haploids
expressed sequence tags
Genes
Genetic loci
grain crops
Hordeum vulgare L
Life Sciences
metabolism
Pathology
Plant Breeding/Biotechnology
Plant genetics
Plant Genetics and Genomics
Plant Physiology
Plants
putative function
Quantitative trait loci
Rice
Rye
sequence homology
signal transduction
toxicity
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Summary:Barley is more sensitive than the other major cereal crops to aluminium (Al) toxicity. Here, a doubled haploid mapping population was exploited to study the inheritance of Al tolerance in barley. Quantitative trait locus (QTL) mapping was based on a genetic map constructed with genic markers. Al tolerance QTL were identified on chromosomes 2H, 3H and 4H. A sequence homology search was used to derive the putative function of the genes linked to the QTL, in order to identify potential candidate genes for Al tolerance. Some of these candidates are implicated in stress/defence responses, in particular, stress signal transduction, transcription regulation factors and cell metabolism.
ISSN:0133-3720
1788-9170
DOI:10.1556/CRC.37.2009.4.6