Assessment of genetic diversity and structure of Imperial Crown (Fritillaria imperialis L.) populations in the Zagros region of Iran using AFLP, ISSR and RAPD markers and implications for its conservation

► Genetic diversity within population was low. ► Genetic differentiation between populations was high. ► Limited gene flow and high genetic structuring among populations found. ► AFLP are the best choice for evaluation of genetic diversity and differentiation. ► Development of management practice for Fritillaria imperialis conservation is required.