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  • Title: Development of microsatellite markers for Cypripedium tibeticum (Orchidaceae) and their applicability to two related species.
    Author: Li J, Luo Y, Xu L.
    Journal: Appl Plant Sci; 2017 Dec; 5(12):. PubMed ID: 29299395.
    Abstract:
    PREMISE OF THE STUDY: To investigate genetic diversity and structure, microsatellite markers were developed and characterized for Cypripedium tibeticum, an endangered orchid species, and their utility tested in two relatives: C. flavum and C. bardolphianum. METHODS AND RESULTS: Candidate microsatellite loci were isolated based on next-generation sequencing. We identified 20 polymorphic loci with di- or trinucleotide repeats in three populations of C. tibeticum. Genotyping results showed the total number of alleles per locus varied from two to 21, and the observed and expected heterozygosity ranged from 0.261 to 0.967 and 0.441 to 0.960, respectively. Cross-species amplification showed most of the markers were applicable to C. flavum and C. bardolphianum. CONCLUSIONS: The 20 polymorphic microsatellite markers developed in this study are useful tools for studying the conservation genetics and phylogeography of C. tibeticum and its related species.
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