Mapping and QTL analysis of the barley population Alexis x Sloop
Date
2003
Authors
Barr, A.
Jefferies, S.
Broughton, S.
Chalmers, K.
Kretschmer, J.
Boyd, W.
Collins, H.
Roumeliotis, S.
Logue, S.
Coventry, S.
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Advisors
Journal Title
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Volume Title
Type:
Journal article
Citation
Crop and Pasture Science, 2003; 54(11-12):1117-1123
Statement of Responsibility
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DOI
Abstract
Two populations between the German malting variety Alexis and the Australian malting variety Sloop were constructed, mapped, phenotyped, and subjected to quantitative trait loci analysis. One population consisted of 153 F4-derived recombinant inbred lines and the other of 111 doubled haploid lines. This paper describes 18 field and laboratory experiments conducted with the populations and summarises the traits mapped and analysed. The genetic basis of 5 traits (malt extract, resistance to leaf rust, resistance to powdery mildew, early flowering, plant stature) important to Australian efforts to improve malting barley varieties was elucidated. Detailed maps for these populations are shown in this paper, while a consensus map incorporating these maps and further experiments on the populations are described elsewhere in this issue.