This paper reviews the evolution of genomic R&D in potato and related wild species. In the 1980s and 1990s different molecular marker types were developed and applied in potato. Several genetic linkage maps were constructed and numerous markers for qualitative and quantitative characters were integrated in these maps, including applications at the tetraploid level. Comparative genome analyses within and between species revealed resistance gene clusters at several regions of the potato genome and certain common structures between related species. QTLs were found to correspond to genes of associated metabolic pathways (candidate genes). Molecular markers closely linked to qualitative traits or QTLs and candidate genes have been used to develop applications for marker assisted selection and breeding. A high density reference linkage map of 10000 markers was established in 2002 and an anchored physical and functional map is under construction. Novel tools for genome analysis and gene discovery are applied in potato, such as EST, cDNA-AFLP, microchip analyses and physical mapping. Several extended genomic resources are available on the WEB and recent R&D initiatives including genome sequencing indicate that potato is becoming a model crop species.
|Title of host publication||Potato in Progress|
|Subtitle of host publication||Science Meets Practice|
|Editors||A J Haverkort, P C Struik|
|Publisher||Wageningen Academic Publishers|
|Number of pages||10|
|Publication status||Published - 1 Dec 2005|