Linkage maps for the four homoeologous chromosome pairs of LG1 in the allo-octoploid strawberry. These maps are based on the five microsatellites that have been used to exemplify the MADCE approach for the assessment of allele doses and assignment of sub-genomes based on parent-specific allelic pairs. Positions (in cM) are shown on the left side of each linkage group (LG). Positions with an × instead of a value are homozygous in both parents and therefore cannot be used for determining map distances. A green background indicates heterozygosity, and a red background indicates homozygosity. H and K indicate the 'Holiday' and 'Korona' parents, respectively. * Allelic configurations are interchangeable between the related homoeologues. 0: inferred null allele.