Genetic diversity and population structure of Chinese ginseng accessions using SSR markers
2017
An, H., ChungbukNational University, Cheongju, Republic of Korea | Park, J.H., Korea National College of Agriculture and Fisheries, Ministry of Agriculture, Food and Rural Affairs, Jeonju, Republic of Korea | Hong, C.E., National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong, Republic of Korea | Sebastin Raveendar, National Institute of Agricultural Science, Rural Development Administration, Jeonju, Republic of Korea | Lee, Y., ChungbukNational University, Cheongju, Republic of Korea | Jo, I.H., National Institute of Horticultural and Herbal Science, Rural Development Administration, Eumseong, Republic of Korea | Chung, J.W., ChungbukNational University, Cheongju, Republic of Korea
The need to preserve and use plant genetic resources is widely recognized, and the prospect of dwindling plant genetic diversity, coupled with increased demands on these resources, has made them a topic of global discussion. In the present study, the genetic diversity and population structure of 73 ginseng accessions collected from six regions in China were analyzed using eight simple sequence repeat (SSR) markers. Major allele frequencies ranged between 0.38 ~ 0.78, with a mean allele frequency value of 0.571. The number of alleles discovered ranged from 3 to 10 per accession, with a mean number of 7; 56 alleles were discovered in total. Gene diversity (GD) and polymorphic information content (PIC) values were similar to each other, and they ranged from 0.36 ~ 0.77 (mean 0.588) and 0.33 ~ 0.74 (mean 0.548), respectively. Accessions were divided into three clusters based on their phylogenetic relationships and genetic similarities, and although the populations were similar, they were not classified according to the region. Regional genetic diversity was also similar, with slight differences observed based on the number of accessions per region. It is expected that the findings of the present study can provide basic data for future studies on ginseng genetic diversity and for breeding ginseng cultivars.
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