**5.3 Transferability and polymorphism of simple sequence repeats (SSRs) In the Flavonoid pathway genes of strawberry (***Fragaria***) and Rasberry (***Rubus Sp***.)**

*Fragaria* and *Rubus* are two extremely popular crops, whose breeding programs are increasingly reliant on the use of functional DNA markers. Improvement in the nutritional quality and disease resistance abilities are essential challenges in breeding programs of these crops. There is a total of 118 microsatellite (simple sequence repeat-SSR) loci in the nucleotide sequences of genes that are involved in flavonoid production and pathogenicity and a count of 24 SSR markers that represent some of *Flavonoids: Recent Advances and Applications in Crop Breeding DOI: http://dx.doi.org/10.5772/intechopen.107565*

these structural and regulatory genes have yet been discovered. Using these markers, 48 specimens of *Fragaria* and *Rubus*, comprising unusual cultivars and wild species were examined in one of the studies to determine their overall genetic diversities. It is believed that the enhancement of anthocyanin-related phenotypes in strawberry and raspberry breeding programs may get benefited from the use of SSR markers collection as a molecular tool [132].
