ISSN:
1432-2242
Keywords:
Key words CCN
;
RFLP
;
PCR
;
Heterodera avenae
;
Genetic mapping
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract A genetic map of the long arm of chromosome 6R of rye was constructed using eight homoeologous group-6 RFLP clones and five PCR markers derived from the rye-specific dispersed repetitive DNA family, R173. The map was developed using a novel test-cross F1 (TC-F1) population segregating for resistance to the cereal cyst nematode. Comparisons were made between the map generated with other rye and wheat group-6 chromosome maps by the inclusion of RFLP clones previously mapped in those species. Co-linearity was observed for common loci. This comparison confirmed a dramatic reduction in recombination for chromosome 6R in the TC-F1 population. The CreR locus was included in the linkage map via progeny testing of informative TC-F1 individuals. CreR mapped 3.7 cM distal from the RFLP locus, XksuF37. Comparative mapping should allow the identification of additional RFLP markers more closely linked to the CreR locus.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s001220050984
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