An integrative genetic linkage map of winter wheat (Triticum aestivum L.)


We constructed a genetic linkage map based on a cross between two Swiss winter wheat (Triticum aestivum L.) varieties, Arina and Forno. Two-hundred and forty F5 single-seed descent (SSD)-derived lines were analysed with 112 restriction fragment length polymorphism (RFLP) anonymous probes, 18 wheat cDNA clones coding for putative stress or defence-related proteins and 179 simple-sequence repeat (SSR) primer-pairs. The 309 markers revealed 396 segregating loci. Linkage analysis defined 27 linkage groups that could all be assigned to chromosomes or chromosome arms. The resulting genetic map comprises 380 loci and spans 3,086 cM with 1,131 cM for the A genome, 920 cM for the B genome and 1,036 cM for the D genome. Seventeen percent of the loci showed a significant (P < 0.05) deviation from a 1:1 ratio, most of them in favour of the Arina alleles. This map enabled the mapping of QTLs for resistance against several fungal diseases such as Stagonospora glume blotch, leaf rust and Fusarium head blight. It will also be very useful for wheat genetic mapping, as it combines RFLP and SSR markers that were previously located on separate maps.

DOI: 10.1007/s00122-003-1361-6
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@article{Paillard2003AnIG, title={An integrative genetic linkage map of winter wheat (Triticum aestivum L.)}, author={Sophie Paillard and Thorsten Schnurbusch and Michael Winzeler and Monika M. Messmer and Pierre Sourdille and Olaf Abderhalden and Beat Keller and Gabriele Schachermayr}, journal={Theoretical and Applied Genetics}, year={2003}, volume={107}, pages={1235-1242} }