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conferenceseries.com
11th World Congress on
March 05-07, 2018 | Paris, France
Plant Biotechnology and Agriculture
Volume 6 Advances in Crop Science and Technology
ISSN: 2329-8863 Agri World 2018
March 05-07, 2018
Genetic diversity and population structure of potato (Solanum tuberosum L.) collection in Republic
of Korea
Kyung-Ho Ma1, Kwang-Soo Cho2 , Myoung-Jae Shin1, Gi-An Lee1 and Kyung Jun Lee1
1National Agro-Biodiversity Center, Republic of Korea
2Highland Agricultural Research Institute, Republic of Korea
Statement of the Problem: Potato (Solanum tuberosum L.) is an important staple food and economic crop around the world.
The identification of potato is based on the morphological characteristics, such as tuber shape, leaf type, flower color, sprout
appearance and so on. There are morphological similarities within the conserved potato collection, so the evaluation of genetic
diversity and population structure among the diverse genetic resources could be useful for the potato improvement program.
Material &Methods: In this study, to understand the genetic diversity of conserved potato germplasm collected worldwide, we
acquired leaf samples of 725 potato accessions from Highland Agricultural Research Institute, NICS, RDA, Republic of Korea.
Using polymorphic 24 SSR markers, we analyzed the genetic diversity and population structure among the potato collection.
Findings & Conclusion: The tested 24 SSR loci revealed polymorphic alleles among the tested potato collection. A total of 273
alleles on 24 SSR loci were detected with an average of 11.4 alleles per SSR locus ranging from 4 to 23. The Simpson index, Nei’s
genetic diversity and Evenness were ranged from 0.16 to 0.83, from 0.16 to 0.83, and from 0.43 to 0.88, respectively. Model
based population structure were tested using K values from 1 to 20, but there was no clear population structure, therefore
Ln(PD) derived ΔK was plotted against the K to determine the number of populations. Based on population structure analysis
there were five or six sub-populations within the potato collection. The differentiated genetic lineages found in this study could
be useful information for potato improvement and conservation programs.
Biography
Kyung-Ho Ma is currently working as a Senior Scientist in National Agro-Biodiversity Center, Republic of Korea. He is now responsible for Deputy Director of
Collection and Conservation in NAC. His main activity is managing the activity of conservation and distribution of plant genetic resources.
Kyung-Ho Ma et al., Adv Crop Sci Tech 2018, Volume 6
DOI: 10.4172/2329-8863-C1-006