Isolation and Characterization of Eleven Polymorphic Microsatellite Loci for the Valuable Medicinal Plant Dendrobium huoshanense and Cross-Species Amplification

Autor: Hui Wang, Nai-Fu Chen, Ji-Yang Zheng, Wen-Cai Wang, Yun-Yun Pei, Guo-Ping Zhu
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: International Journal of Molecular Sciences, Vol 13, Iss 12, Pp 16779-16784 (2012)
Druh dokumentu: article
ISSN: 13121677
1422-0067
DOI: 10.3390/ijms131216779
Popis: Dendrobium huoshanense (Orchidaceae) is a perennial herb and a widely used medicinal plant in Traditional Chinese medicine (TCM) endemic to Huoshan County town in Anhui province in Southeast China. A microsatellite-enriched genomic DNA library of D. huoshanense was developed and screened to identify marker loci. Eleven polymorphic loci were isolated and analyzed by screening 25 individuals collected from a natural population. The number of alleles per locus ranged from 2 to 5. The observed and expected heterozygosities ranged from 0.227 to 0.818 and from 0.317 to 0.757, respectively. Two loci showed significant deviations from Hardy-Weinberg equilibrium and four of the pairwise comparisons of loci revealed linkage disequilibrium (p < 0.05). These microsatellite loci were cross-amplified for five congeneric species and seven loci can be amplified in all species. These simple sequence repeats (SSR) markers are useful in genetic studies of D. huoshanense and other related species and in conservation decision-making.
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