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Polymorphic microsatellite markers for a wind-dispersed tropical tree species, Triplaris cumingiana (Polygonaceae).

ABSTRACT: UNLABELLED: PREMISE OF THE STUDY:Novel microsatellite markers were characterized in the wind-dispersed and dioecious neotropical tree Triplaris cumingiana (Polygonaceae) for use in understanding the ecological processes and genetic impacts of pollen- and seed-mediated gene flow in tropical forests. • METHODS AND RESULTS:Sixty-two microsatellite primer pairs were screened, from which 12 markers showing five or more alleles per locus (range 5-17) were tested on 47 individuals. Observed and expected heterozygosities averaged 0.692 and 0.731, respectively. Polymorphism information content was between 0.417 and 0.874. Linkage disequilibrium was observed in one of the 66 pairwise comparisons between loci. Two loci showed deviation from Hardy-Weinberg equilibrium. An additional 14 markers exhibiting lower polymorphism were characterized on a smaller number of individuals. • CONCLUSIONS:These microsatellite markers have high levels of polymorphism and reproducibility and will be useful in studying gene flow and population structure in T. cumingiana.

SUBMITTER: Wei N

PROVIDER: S-EPMC4162670 | biostudies-literature | 2014 Sep

REPOSITORIES: biostudies-literature

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