To investi gate the genetic diversity and relationships of Solanum tuberosum L. germplasm and authenticity identification of hybrid offspring are important work in potato molecular breeding. SRAP markers were used to analyse the genetic diversity and genetic background and relationship of 54 potato germplasm. A total of 50 individual F1 hybrids derived from the hybrid combination ofQingshu No.7(♀)×Longshu No.3(♂)were identified for their authenticity using the SRAP molecular markers. The results showed that...