Abstract: | Microsatellite markers of Bruguiera gymnorrhiza were developed. Fifty‐four of 161 clones were found to contain microsatellite repeats. Primer pairs were designed for 20 of these clones according to their sequence data. Of these, seven primers showed polymorphism for 32 individuals from Iriomote Island, Japan. Two to five alleles per locus were detected, and the observed heterozygosities ranged from 0.031 to 0.500. Cross‐species amplification using five of the seven primers also worked well for B. cylindrica and B. parviflora. Because our previous study reported very low levels of genetic diversity for allozymes in the same Iriomote population, these microsatellite markers should be a powerful tool for various kinds of genetic analysis. |