Construction of a molecular genetic map for hawthorn based on SRAP markers

The F1 hybrid population was a result from the crossing of ‘Damianqiu’ and ‘Qiujinxing’. ‘Damianqiu’ was the female parent and ‘Qiujinxing’ was the male parent. Ninety-two F1 individual plants and their parents, in total of 94 materials, were chosen for the sequence-related amplified polymorphism analysis. The Joinmap3.0 software was used to construct the molecular genetic map of ‘Damianqiu’ and ‘Qiujinxing’, respectively. According to the result, the molecular linkage map of ‘Damianqiu’ has 21 linkage groups with 96 markers, which covers a genetic distance of 686.67 cM, with an average interval of 7.15 cM. ‘Qiujinxing’ has 18 linkage groups with 89 markers, which covers a genetic distance of 529.58 cM, with an average interval of 5.95 cM. The aim of this study was to create the first hawthorn molecular genetic map, which could be used as a foundation for gene mapping and assisted selection in the future.