The availability of genetic markers is fundamental within plant biology and plant breeding. Feedback forms are provided with all sequence entries to enable inclusion of, for example, map location for markers validated by the research community. A web presence at provides functionality so that a user may search for species-specific markers on the basis of many specific criteria not limited to non-synonymous SNPs segregating between different varieties or measured polymorphic SSRs. A systematic approach to identify as broad a range of putative markers has been undertaken by screening the available openSputnik unigene consensus sequences from over 50 plant species. We have adopted contemporary techniques to identify putative single nucleotide polymorphism (SNP), simple sequence repeat (SSR) and conserved orthologue set markers. PlantMarkers is a genetic marker database that contains a comprehensive pool of predicted molecular markers. As we enter the post-genomics era, the need for genetic markers does not diminish, even in the species with fully sequenced genomes. Molecular markers are required in a broad spectrum of gene screening approaches, ranging from gene-mapping within traditional ‘forward’-genetics approaches through QTL identification studies to genotyping and haplotyping studies.
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