Related Experiment Video
Updated: Jun 20, 2026
A Noninvasive Hair Sampling Technique to Obtain High Quality DNA from Elusive Small Mammals
Published on: March 13, 2011
[DNA fragment isolation of genomic microsatellite in Pinellia ternata by magnesphere]
1Institute of Chinese Medicinal Materials, Nanjing Agriculture University, Nanjing 210095, China.
Objective:
To develop microsatellite primers with the method of isolation of genomic microsatellite in Pinellia ternata by magnesphere.
Method:
By taking advantage of the high binding affinity of biotin to streptavidin, microsatellite probe of the 5' end biotin was combined with magnesphere paramagnetic particles, and then combinations were hybridized with the digested P. ternata DNA fragments in which both ends of them connected with special adaptor, the other DNA fragments were eluted out. The microsatellite library was established. The crossed fragments were used as the template to conduct PCR amplification with the adapter sequences as primers, the products were cloned directly, subsequently screened by bacterium liquid PCR, and DNA sequencing was carried out.
Result:
Fifteen microsatellites of P. ternata were obtained, development efficiency was 93.75%.
Conclusion:
The result demonstrates that magnesphere is a fast and efficient method to develop microsatellite.
