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Mapping and QTL analysis of the barley population Chebec x Harrington

Barr, A.R., Karakousis, A., Lance, R.C.M., Logue, S.J., Manning, S., Chalmers, K.J., Kretschmer, J.M., Boyd, W.J.R., Collins, H.M., Roumeliotis, S., Coventry, S.J., Moody, D.B., Read, B.J., Poulsen, D., Li, C., Platz, G.J., Inkerman, P.A., Panozzo, J.F., Cullis, B.R., Smith, A.B., Lim, P. and Langridge, P. (2003) Mapping and QTL analysis of the barley population Chebec x Harrington. Australian Journal of Agricultural Research, 54 (12). pp. 1125-1130.

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A doubled haploid population of 120 individuals was produced from the parents Chebec, an Australian 2-row barley of feed quality with resistance to the cereal cyst nematode, and Harrington, a 2-rowed, Canadian variety of premium malting quality. This paper describes 18 field and laboratory experiments conducted with the population and summarises the traits mapped and analysed. The genomic location of 25 traits and genes is described and marker–trait associations for 5 traits (malt extract, diastatic power, resistance to cereal cyst nematode, early flowering, resistance to pre-harvest sprouting) important to Australian efforts to improve malting barley varieties have been used in practical breeding programs. 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.

Item Type: Journal Article
Publisher: CSIRO
Copyright: © 2003 CSIRO
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