Coordinator's report: Chromosome 5

Jens Jensen
Plant Biology Section, Environmental Science and Technology Department
Risø National Laboratory, DK4000 Roskilde, Denmark

The gene amo1 in the high amylose 'Glacier AC38' mutant was localized to chromosome 5 using RFLP markers by Schondelmaier et al. (1992). However, the paper (like most papers with RFLP data) gives the linkage information in such a form that it cannot be combined with the information in the present linkage map of barley chromosome 5 (Figure 1).

Figure 1. The barley chromosome 5 linkage map with the best fit to all linkage data available in the scientific literature calculated according to Jensen (1987). The map positions are given in centimorgans (cM). The order and positions of closely linked loci may not be definitive. The Position of the centromere is probably slightly above that of locus fs2.

References:

Jensen, J. 1987. Linkage map of barley chromosome 4. In Barley Genetics V. Okayama, Japan: 189-199.

Schondelmaier, J., A. Jacobi, G. Fischbeck and A. Jahoor. 1992. Genetic-studies on the mode of inheritance and localization of the amo1 (high amylose) gene in barley. Plant Breeding 109:274-280.

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