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GrainGenes Reference Report: GNM-39-379

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Reference
GNM-39-379
Title
Comparison and integration of four barley genetic maps
Journal
Genome
Year
1996
Volume
39
Pages
379-394
Author
Qi X
Stam P
Lindhout P
Abstract
Barley (Hordeum vulgare L.) is one of the most extensively studied food crops in recent molecular research. More than 1000 molecular markers have been located on the barley genome by using five independent populations. For the present study, four segregation data sets, 'Proctor' x 'Nudinka', 'Igri' x 'Franka', 'Steptoe' x 'Morex', and 'Harrington' x 'TR306', were downloaded from the publicly available GrainGenes databank. Since 22% of the markers are common to at least two of the independent data sets, we were able to establish an integrated map using the computer package JOINMAP V2.0. The integrated map contains 898 markers, covers 1060 cM, and removes many large gaps present in the individual maps. Comparison of the integrated map is consistent with the component maps. No significant reordering of markers was found. This conservative property of the barley genome makes the integrated maps reliable and successful. Except for chromosome 7 (5H), marker clustering was observed in the centromeric regions, probably owing to the centromeric suppression of recombination. Based on this integrated map, geneticists and breeders can choose their favourite markers in any region of interest of the barley genome.
Map Data
Barley consensus 2
Keyword
Hordeum vulgare
integrated map
RFLP
Image
[ Hide all but 1 of 7 ]
Integration 1H
Integration 2H
Integration 3H
Integration 4H
Integration 5H
Integration 6H
Integration 7H