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Genetic diversity and population structure of potato (Solanum tuberosum L.) collection in Republic of Korea
11th World Congress on Plant Biotechnology and Agriculture
Kyung-Ho Ma, Kwang-Soo Cho, Myoung-Jae Shin, Gi-An Lee and Kyung Jun Lee
National Agro-Biodiversity Center, Republic of Korea Highland Agricultural Research Institute, Republic of Korea
Posters & Accepted Abstracts: Adv Crop Sci Tech
Abstract
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 ��K 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.
Email:khma@korea.kr
